// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
 * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
 */

#include <crypto/curve25519.h>
#include <kunit/test.h>
#include <linux/timekeeping.h>

struct curve25519_test_vector {
        u8 private[CURVE25519_KEY_SIZE];
        u8 public[CURVE25519_KEY_SIZE];
        u8 result[CURVE25519_KEY_SIZE];
        bool valid;
};
static const struct curve25519_test_vector curve25519_test_vectors[] = {
        {
                .private = { 0x77, 0x07, 0x6d, 0x0a, 0x73, 0x18, 0xa5, 0x7d,
                             0x3c, 0x16, 0xc1, 0x72, 0x51, 0xb2, 0x66, 0x45,
                             0xdf, 0x4c, 0x2f, 0x87, 0xeb, 0xc0, 0x99, 0x2a,
                             0xb1, 0x77, 0xfb, 0xa5, 0x1d, 0xb9, 0x2c, 0x2a },
                .public = { 0xde, 0x9e, 0xdb, 0x7d, 0x7b, 0x7d, 0xc1, 0xb4,
                            0xd3, 0x5b, 0x61, 0xc2, 0xec, 0xe4, 0x35, 0x37,
                            0x3f, 0x83, 0x43, 0xc8, 0x5b, 0x78, 0x67, 0x4d,
                            0xad, 0xfc, 0x7e, 0x14, 0x6f, 0x88, 0x2b, 0x4f },
                .result = { 0x4a, 0x5d, 0x9d, 0x5b, 0xa4, 0xce, 0x2d, 0xe1,
                            0x72, 0x8e, 0x3b, 0xf4, 0x80, 0x35, 0x0f, 0x25,
                            0xe0, 0x7e, 0x21, 0xc9, 0x47, 0xd1, 0x9e, 0x33,
                            0x76, 0xf0, 0x9b, 0x3c, 0x1e, 0x16, 0x17, 0x42 },
                .valid = true
        },
        {
                .private = { 0x5d, 0xab, 0x08, 0x7e, 0x62, 0x4a, 0x8a, 0x4b,
                             0x79, 0xe1, 0x7f, 0x8b, 0x83, 0x80, 0x0e, 0xe6,
                             0x6f, 0x3b, 0xb1, 0x29, 0x26, 0x18, 0xb6, 0xfd,
                             0x1c, 0x2f, 0x8b, 0x27, 0xff, 0x88, 0xe0, 0xeb },
                .public = { 0x85, 0x20, 0xf0, 0x09, 0x89, 0x30, 0xa7, 0x54,
                            0x74, 0x8b, 0x7d, 0xdc, 0xb4, 0x3e, 0xf7, 0x5a,
                            0x0d, 0xbf, 0x3a, 0x0d, 0x26, 0x38, 0x1a, 0xf4,
                            0xeb, 0xa4, 0xa9, 0x8e, 0xaa, 0x9b, 0x4e, 0x6a },
                .result = { 0x4a, 0x5d, 0x9d, 0x5b, 0xa4, 0xce, 0x2d, 0xe1,
                            0x72, 0x8e, 0x3b, 0xf4, 0x80, 0x35, 0x0f, 0x25,
                            0xe0, 0x7e, 0x21, 0xc9, 0x47, 0xd1, 0x9e, 0x33,
                            0x76, 0xf0, 0x9b, 0x3c, 0x1e, 0x16, 0x17, 0x42 },
                .valid = true
        },
        {
                .private = { 1 },
                .public = { 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .result = { 0x3c, 0x77, 0x77, 0xca, 0xf9, 0x97, 0xb2, 0x64,
                            0x41, 0x60, 0x77, 0x66, 0x5b, 0x4e, 0x22, 0x9d,
                            0x0b, 0x95, 0x48, 0xdc, 0x0c, 0xd8, 0x19, 0x98,
                            0xdd, 0xcd, 0xc5, 0xc8, 0x53, 0x3c, 0x79, 0x7f },
                .valid = true
        },
        {
                .private = { 1 },
                .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0xb3, 0x2d, 0x13, 0x62, 0xc2, 0x48, 0xd6, 0x2f,
                            0xe6, 0x26, 0x19, 0xcf, 0xf0, 0x4d, 0xd4, 0x3d,
                            0xb7, 0x3f, 0xfc, 0x1b, 0x63, 0x08, 0xed, 0xe3,
                            0x0b, 0x78, 0xd8, 0x73, 0x80, 0xf1, 0xe8, 0x34 },
                .valid = true
        },
        {
                .private = { 0xa5, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d,
                             0x3b, 0x16, 0x15, 0x4b, 0x82, 0x46, 0x5e, 0xdd,
                             0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc, 0x5a, 0x18,
                             0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0xc4 },
                .public = { 0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb,
                            0x35, 0x94, 0xc1, 0xa4, 0x24, 0xb1, 0x5f, 0x7c,
                            0x72, 0x66, 0x24, 0xec, 0x26, 0xb3, 0x35, 0x3b,
                            0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c },
                .result = { 0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90,
                            0x8e, 0x94, 0xea, 0x4d, 0xf2, 0x8d, 0x08, 0x4f,
                            0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c, 0x71, 0xf7,
                            0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52 },
                .valid = true
        },
        {
                .private = { 1, 2, 3, 4 },
                .public = { 0 },
                .result = { 0 },
                .valid = false
        },
        {
                .private = { 2, 4, 6, 8 },
                .public = { 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae,
                            0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a,
                            0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd,
                            0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8 },
                .result = { 0 },
                .valid = false
        },
        {
                .private = { 0xff, 0xff, 0xff, 0xff, 0x0a, 0xff, 0xff, 0xff,
                             0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                             0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                             0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0x0a, 0x00, 0xfb, 0x9f },
                .result = { 0x77, 0x52, 0xb6, 0x18, 0xc1, 0x2d, 0x48, 0xd2,
                            0xc6, 0x93, 0x46, 0x83, 0x81, 0x7c, 0xc6, 0x57,
                            0xf3, 0x31, 0x03, 0x19, 0x49, 0x48, 0x20, 0x05,
                            0x42, 0x2b, 0x4e, 0xae, 0x8d, 0x1d, 0x43, 0x23 },
                .valid = true
        },
        {
                .private = { 0x8e, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .public = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x06 },
                .result = { 0x5a, 0xdf, 0xaa, 0x25, 0x86, 0x8e, 0x32, 0x3d,
                            0xae, 0x49, 0x62, 0xc1, 0x01, 0x5c, 0xb3, 0x12,
                            0xe1, 0xc5, 0xc7, 0x9e, 0x95, 0x3f, 0x03, 0x99,
                            0xb0, 0xba, 0x16, 0x22, 0xf3, 0xb6, 0xf7, 0x0c },
                .valid = true
        },
        /* wycheproof - normal case */
        {
                .private = { 0x48, 0x52, 0x83, 0x4d, 0x9d, 0x6b, 0x77, 0xda,
                             0xde, 0xab, 0xaa, 0xf2, 0xe1, 0x1d, 0xca, 0x66,
                             0xd1, 0x9f, 0xe7, 0x49, 0x93, 0xa7, 0xbe, 0xc3,
                             0x6c, 0x6e, 0x16, 0xa0, 0x98, 0x3f, 0xea, 0xba },
                .public = { 0x9c, 0x64, 0x7d, 0x9a, 0xe5, 0x89, 0xb9, 0xf5,
                            0x8f, 0xdc, 0x3c, 0xa4, 0x94, 0x7e, 0xfb, 0xc9,
                            0x15, 0xc4, 0xb2, 0xe0, 0x8e, 0x74, 0x4a, 0x0e,
                            0xdf, 0x46, 0x9d, 0xac, 0x59, 0xc8, 0xf8, 0x5a },
                .result = { 0x87, 0xb7, 0xf2, 0x12, 0xb6, 0x27, 0xf7, 0xa5,
                            0x4c, 0xa5, 0xe0, 0xbc, 0xda, 0xdd, 0xd5, 0x38,
                            0x9d, 0x9d, 0xe6, 0x15, 0x6c, 0xdb, 0xcf, 0x8e,
                            0xbe, 0x14, 0xff, 0xbc, 0xfb, 0x43, 0x65, 0x51 },
                .valid = true
        },
        /* wycheproof - public key on twist */
        {
                .private = { 0x58, 0x8c, 0x06, 0x1a, 0x50, 0x80, 0x4a, 0xc4,
                             0x88, 0xad, 0x77, 0x4a, 0xc7, 0x16, 0xc3, 0xf5,
                             0xba, 0x71, 0x4b, 0x27, 0x12, 0xe0, 0x48, 0x49,
                             0x13, 0x79, 0xa5, 0x00, 0x21, 0x19, 0x98, 0xa8 },
                .public = { 0x63, 0xaa, 0x40, 0xc6, 0xe3, 0x83, 0x46, 0xc5,
                            0xca, 0xf2, 0x3a, 0x6d, 0xf0, 0xa5, 0xe6, 0xc8,
                            0x08, 0x89, 0xa0, 0x86, 0x47, 0xe5, 0x51, 0xb3,
                            0x56, 0x34, 0x49, 0xbe, 0xfc, 0xfc, 0x97, 0x33 },
                .result = { 0xb1, 0xa7, 0x07, 0x51, 0x94, 0x95, 0xff, 0xff,
                            0xb2, 0x98, 0xff, 0x94, 0x17, 0x16, 0xb0, 0x6d,
                            0xfa, 0xb8, 0x7c, 0xf8, 0xd9, 0x11, 0x23, 0xfe,
                            0x2b, 0xe9, 0xa2, 0x33, 0xdd, 0xa2, 0x22, 0x12 },
                .valid = true
        },
        /* wycheproof - public key on twist */
        {
                .private = { 0xb0, 0x5b, 0xfd, 0x32, 0xe5, 0x53, 0x25, 0xd9,
                             0xfd, 0x64, 0x8c, 0xb3, 0x02, 0x84, 0x80, 0x39,
                             0x00, 0x0b, 0x39, 0x0e, 0x44, 0xd5, 0x21, 0xe5,
                             0x8a, 0xab, 0x3b, 0x29, 0xa6, 0x96, 0x0b, 0xa8 },
                .public = { 0x0f, 0x83, 0xc3, 0x6f, 0xde, 0xd9, 0xd3, 0x2f,
                            0xad, 0xf4, 0xef, 0xa3, 0xae, 0x93, 0xa9, 0x0b,
                            0xb5, 0xcf, 0xa6, 0x68, 0x93, 0xbc, 0x41, 0x2c,
                            0x43, 0xfa, 0x72, 0x87, 0xdb, 0xb9, 0x97, 0x79 },
                .result = { 0x67, 0xdd, 0x4a, 0x6e, 0x16, 0x55, 0x33, 0x53,
                            0x4c, 0x0e, 0x3f, 0x17, 0x2e, 0x4a, 0xb8, 0x57,
                            0x6b, 0xca, 0x92, 0x3a, 0x5f, 0x07, 0xb2, 0xc0,
                            0x69, 0xb4, 0xc3, 0x10, 0xff, 0x2e, 0x93, 0x5b },
                .valid = true
        },
        /* wycheproof - public key on twist */
        {
                .private = { 0x70, 0xe3, 0x4b, 0xcb, 0xe1, 0xf4, 0x7f, 0xbc,
                             0x0f, 0xdd, 0xfd, 0x7c, 0x1e, 0x1a, 0xa5, 0x3d,
                             0x57, 0xbf, 0xe0, 0xf6, 0x6d, 0x24, 0x30, 0x67,
                             0xb4, 0x24, 0xbb, 0x62, 0x10, 0xbe, 0xd1, 0x9c },
                .public = { 0x0b, 0x82, 0x11, 0xa2, 0xb6, 0x04, 0x90, 0x97,
                            0xf6, 0x87, 0x1c, 0x6c, 0x05, 0x2d, 0x3c, 0x5f,
                            0xc1, 0xba, 0x17, 0xda, 0x9e, 0x32, 0xae, 0x45,
                            0x84, 0x03, 0xb0, 0x5b, 0xb2, 0x83, 0x09, 0x2a },
                .result = { 0x4a, 0x06, 0x38, 0xcf, 0xaa, 0x9e, 0xf1, 0x93,
                            0x3b, 0x47, 0xf8, 0x93, 0x92, 0x96, 0xa6, 0xb2,
                            0x5b, 0xe5, 0x41, 0xef, 0x7f, 0x70, 0xe8, 0x44,
                            0xc0, 0xbc, 0xc0, 0x0b, 0x13, 0x4d, 0xe6, 0x4a },
                .valid = true
        },
        /* wycheproof - public key on twist */
        {
                .private = { 0x68, 0xc1, 0xf3, 0xa6, 0x53, 0xa4, 0xcd, 0xb1,
                             0xd3, 0x7b, 0xba, 0x94, 0x73, 0x8f, 0x8b, 0x95,
                             0x7a, 0x57, 0xbe, 0xb2, 0x4d, 0x64, 0x6e, 0x99,
                             0x4d, 0xc2, 0x9a, 0x27, 0x6a, 0xad, 0x45, 0x8d },
                .public = { 0x34, 0x3a, 0xc2, 0x0a, 0x3b, 0x9c, 0x6a, 0x27,
                            0xb1, 0x00, 0x81, 0x76, 0x50, 0x9a, 0xd3, 0x07,
                            0x35, 0x85, 0x6e, 0xc1, 0xc8, 0xd8, 0xfc, 0xae,
                            0x13, 0x91, 0x2d, 0x08, 0xd1, 0x52, 0xf4, 0x6c },
                .result = { 0x39, 0x94, 0x91, 0xfc, 0xe8, 0xdf, 0xab, 0x73,
                            0xb4, 0xf9, 0xf6, 0x11, 0xde, 0x8e, 0xa0, 0xb2,
                            0x7b, 0x28, 0xf8, 0x59, 0x94, 0x25, 0x0b, 0x0f,
                            0x47, 0x5d, 0x58, 0x5d, 0x04, 0x2a, 0xc2, 0x07 },
                .valid = true
        },
        /* wycheproof - public key on twist */
        {
                .private = { 0xd8, 0x77, 0xb2, 0x6d, 0x06, 0xdf, 0xf9, 0xd9,
                             0xf7, 0xfd, 0x4c, 0x5b, 0x37, 0x69, 0xf8, 0xcd,
                             0xd5, 0xb3, 0x05, 0x16, 0xa5, 0xab, 0x80, 0x6b,
                             0xe3, 0x24, 0xff, 0x3e, 0xb6, 0x9e, 0xa0, 0xb2 },
                .public = { 0xfa, 0x69, 0x5f, 0xc7, 0xbe, 0x8d, 0x1b, 0xe5,
                            0xbf, 0x70, 0x48, 0x98, 0xf3, 0x88, 0xc4, 0x52,
                            0xba, 0xfd, 0xd3, 0xb8, 0xea, 0xe8, 0x05, 0xf8,
                            0x68, 0x1a, 0x8d, 0x15, 0xc2, 0xd4, 0xe1, 0x42 },
                .result = { 0x2c, 0x4f, 0xe1, 0x1d, 0x49, 0x0a, 0x53, 0x86,
                            0x17, 0x76, 0xb1, 0x3b, 0x43, 0x54, 0xab, 0xd4,
                            0xcf, 0x5a, 0x97, 0x69, 0x9d, 0xb6, 0xe6, 0xc6,
                            0x8c, 0x16, 0x26, 0xd0, 0x76, 0x62, 0xf7, 0x58 },
                .valid = true
        },
        /* wycheproof - public key = 0 */
        {
                .private = { 0x20, 0x74, 0x94, 0x03, 0x8f, 0x2b, 0xb8, 0x11,
                             0xd4, 0x78, 0x05, 0xbc, 0xdf, 0x04, 0xa2, 0xac,
                             0x58, 0x5a, 0xda, 0x7f, 0x2f, 0x23, 0x38, 0x9b,
                             0xfd, 0x46, 0x58, 0xf9, 0xdd, 0xd4, 0xde, 0xbc },
                .public = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key = 1 */
        {
                .private = { 0x20, 0x2e, 0x89, 0x72, 0xb6, 0x1c, 0x7e, 0x61,
                             0x93, 0x0e, 0xb9, 0x45, 0x0b, 0x50, 0x70, 0xea,
                             0xe1, 0xc6, 0x70, 0x47, 0x56, 0x85, 0x54, 0x1f,
                             0x04, 0x76, 0x21, 0x7e, 0x48, 0x18, 0xcf, 0xab },
                .public = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - edge case on twist */
        {
                .private = { 0x38, 0xdd, 0xe9, 0xf3, 0xe7, 0xb7, 0x99, 0x04,
                             0x5f, 0x9a, 0xc3, 0x79, 0x3d, 0x4a, 0x92, 0x77,
                             0xda, 0xde, 0xad, 0xc4, 0x1b, 0xec, 0x02, 0x90,
                             0xf8, 0x1f, 0x74, 0x4f, 0x73, 0x77, 0x5f, 0x84 },
                .public = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .result = { 0x9a, 0x2c, 0xfe, 0x84, 0xff, 0x9c, 0x4a, 0x97,
                            0x39, 0x62, 0x5c, 0xae, 0x4a, 0x3b, 0x82, 0xa9,
                            0x06, 0x87, 0x7a, 0x44, 0x19, 0x46, 0xf8, 0xd7,
                            0xb3, 0xd7, 0x95, 0xfe, 0x8f, 0x5d, 0x16, 0x39 },
                .valid = true
        },
        /* wycheproof - edge case on twist */
        {
                .private = { 0x98, 0x57, 0xa9, 0x14, 0xe3, 0xc2, 0x90, 0x36,
                             0xfd, 0x9a, 0x44, 0x2b, 0xa5, 0x26, 0xb5, 0xcd,
                             0xcd, 0xf2, 0x82, 0x16, 0x15, 0x3e, 0x63, 0x6c,
                             0x10, 0x67, 0x7a, 0xca, 0xb6, 0xbd, 0x6a, 0xa5 },
                .public = { 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .result = { 0x4d, 0xa4, 0xe0, 0xaa, 0x07, 0x2c, 0x23, 0x2e,
                            0xe2, 0xf0, 0xfa, 0x4e, 0x51, 0x9a, 0xe5, 0x0b,
                            0x52, 0xc1, 0xed, 0xd0, 0x8a, 0x53, 0x4d, 0x4e,
                            0xf3, 0x46, 0xc2, 0xe1, 0x06, 0xd2, 0x1d, 0x60 },
                .valid = true
        },
        /* wycheproof - edge case on twist */
        {
                .private = { 0x48, 0xe2, 0x13, 0x0d, 0x72, 0x33, 0x05, 0xed,
                             0x05, 0xe6, 0xe5, 0x89, 0x4d, 0x39, 0x8a, 0x5e,
                             0x33, 0x36, 0x7a, 0x8c, 0x6a, 0xac, 0x8f, 0xcd,
                             0xf0, 0xa8, 0x8e, 0x4b, 0x42, 0x82, 0x0d, 0xb7 },
                .public = { 0xff, 0xff, 0xff, 0x03, 0x00, 0x00, 0xf8, 0xff,
                            0xff, 0x1f, 0x00, 0x00, 0xc0, 0xff, 0xff, 0xff,
                            0x00, 0x00, 0x00, 0xfe, 0xff, 0xff, 0x07, 0x00,
                            0x00, 0xf0, 0xff, 0xff, 0x3f, 0x00, 0x00, 0x00 },
                .result = { 0x9e, 0xd1, 0x0c, 0x53, 0x74, 0x7f, 0x64, 0x7f,
                            0x82, 0xf4, 0x51, 0x25, 0xd3, 0xde, 0x15, 0xa1,
                            0xe6, 0xb8, 0x24, 0x49, 0x6a, 0xb4, 0x04, 0x10,
                            0xff, 0xcc, 0x3c, 0xfe, 0x95, 0x76, 0x0f, 0x3b },
                .valid = true
        },
        /* wycheproof - edge case on twist */
        {
                .private = { 0x28, 0xf4, 0x10, 0x11, 0x69, 0x18, 0x51, 0xb3,
                             0xa6, 0x2b, 0x64, 0x15, 0x53, 0xb3, 0x0d, 0x0d,
                             0xfd, 0xdc, 0xb8, 0xff, 0xfc, 0xf5, 0x37, 0x00,
                             0xa7, 0xbe, 0x2f, 0x6a, 0x87, 0x2e, 0x9f, 0xb0 },
                .public = { 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0x07, 0x00,
                            0x00, 0xe0, 0xff, 0xff, 0x3f, 0x00, 0x00, 0x00,
                            0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0xf8, 0xff,
                            0xff, 0x0f, 0x00, 0x00, 0xc0, 0xff, 0xff, 0x7f },
                .result = { 0xcf, 0x72, 0xb4, 0xaa, 0x6a, 0xa1, 0xc9, 0xf8,
                            0x94, 0xf4, 0x16, 0x5b, 0x86, 0x10, 0x9a, 0xa4,
                            0x68, 0x51, 0x76, 0x48, 0xe1, 0xf0, 0xcc, 0x70,
                            0xe1, 0xab, 0x08, 0x46, 0x01, 0x76, 0x50, 0x6b },
                .valid = true
        },
        /* wycheproof - edge case on twist */
        {
                .private = { 0x18, 0xa9, 0x3b, 0x64, 0x99, 0xb9, 0xf6, 0xb3,
                             0x22, 0x5c, 0xa0, 0x2f, 0xef, 0x41, 0x0e, 0x0a,
                             0xde, 0xc2, 0x35, 0x32, 0x32, 0x1d, 0x2d, 0x8e,
                             0xf1, 0xa6, 0xd6, 0x02, 0xa8, 0xc6, 0x5b, 0x83 },
                .public = { 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
                            0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
                            0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
                            0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x5d, 0x50, 0xb6, 0x28, 0x36, 0xbb, 0x69, 0x57,
                            0x94, 0x10, 0x38, 0x6c, 0xf7, 0xbb, 0x81, 0x1c,
                            0x14, 0xbf, 0x85, 0xb1, 0xc7, 0xb1, 0x7e, 0x59,
                            0x24, 0xc7, 0xff, 0xea, 0x91, 0xef, 0x9e, 0x12 },
                .valid = true
        },
        /* wycheproof - edge case on twist */
        {
                .private = { 0xc0, 0x1d, 0x13, 0x05, 0xa1, 0x33, 0x8a, 0x1f,
                             0xca, 0xc2, 0xba, 0x7e, 0x2e, 0x03, 0x2b, 0x42,
                             0x7e, 0x0b, 0x04, 0x90, 0x31, 0x65, 0xac, 0xa9,
                             0x57, 0xd8, 0xd0, 0x55, 0x3d, 0x87, 0x17, 0xb0 },
                .public = { 0xea, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x19, 0x23, 0x0e, 0xb1, 0x48, 0xd5, 0xd6, 0x7c,
                            0x3c, 0x22, 0xab, 0x1d, 0xae, 0xff, 0x80, 0xa5,
                            0x7e, 0xae, 0x42, 0x65, 0xce, 0x28, 0x72, 0x65,
                            0x7b, 0x2c, 0x80, 0x99, 0xfc, 0x69, 0x8e, 0x50 },
                .valid = true
        },
        /* wycheproof - edge case for public key */
        {
                .private = { 0x38, 0x6f, 0x7f, 0x16, 0xc5, 0x07, 0x31, 0xd6,
                             0x4f, 0x82, 0xe6, 0xa1, 0x70, 0xb1, 0x42, 0xa4,
                             0xe3, 0x4f, 0x31, 0xfd, 0x77, 0x68, 0xfc, 0xb8,
                             0x90, 0x29, 0x25, 0xe7, 0xd1, 0xe2, 0x1a, 0xbe },
                .public = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .result = { 0x0f, 0xca, 0xb5, 0xd8, 0x42, 0xa0, 0x78, 0xd7,
                            0xa7, 0x1f, 0xc5, 0x9b, 0x57, 0xbf, 0xb4, 0xca,
                            0x0b, 0xe6, 0x87, 0x3b, 0x49, 0xdc, 0xdb, 0x9f,
                            0x44, 0xe1, 0x4a, 0xe8, 0xfb, 0xdf, 0xa5, 0x42 },
                .valid = true
        },
        /* wycheproof - edge case for public key */
        {
                .private = { 0xe0, 0x23, 0xa2, 0x89, 0xbd, 0x5e, 0x90, 0xfa,
                             0x28, 0x04, 0xdd, 0xc0, 0x19, 0xa0, 0x5e, 0xf3,
                             0xe7, 0x9d, 0x43, 0x4b, 0xb6, 0xea, 0x2f, 0x52,
                             0x2e, 0xcb, 0x64, 0x3a, 0x75, 0x29, 0x6e, 0x95 },
                .public = { 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
                            0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
                            0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
                            0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 },
                .result = { 0x54, 0xce, 0x8f, 0x22, 0x75, 0xc0, 0x77, 0xe3,
                            0xb1, 0x30, 0x6a, 0x39, 0x39, 0xc5, 0xe0, 0x3e,
                            0xef, 0x6b, 0xbb, 0x88, 0x06, 0x05, 0x44, 0x75,
                            0x8d, 0x9f, 0xef, 0x59, 0xb0, 0xbc, 0x3e, 0x4f },
                .valid = true
        },
        /* wycheproof - edge case for public key */
        {
                .private = { 0x68, 0xf0, 0x10, 0xd6, 0x2e, 0xe8, 0xd9, 0x26,
                             0x05, 0x3a, 0x36, 0x1c, 0x3a, 0x75, 0xc6, 0xea,
                             0x4e, 0xbd, 0xc8, 0x60, 0x6a, 0xb2, 0x85, 0x00,
                             0x3a, 0x6f, 0x8f, 0x40, 0x76, 0xb0, 0x1e, 0x83 },
                .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03 },
                .result = { 0xf1, 0x36, 0x77, 0x5c, 0x5b, 0xeb, 0x0a, 0xf8,
                            0x11, 0x0a, 0xf1, 0x0b, 0x20, 0x37, 0x23, 0x32,
                            0x04, 0x3c, 0xab, 0x75, 0x24, 0x19, 0x67, 0x87,
                            0x75, 0xa2, 0x23, 0xdf, 0x57, 0xc9, 0xd3, 0x0d },
                .valid = true
        },
        /* wycheproof - edge case for public key */
        {
                .private = { 0x58, 0xeb, 0xcb, 0x35, 0xb0, 0xf8, 0x84, 0x5c,
                             0xaf, 0x1e, 0xc6, 0x30, 0xf9, 0x65, 0x76, 0xb6,
                             0x2c, 0x4b, 0x7b, 0x6c, 0x36, 0xb2, 0x9d, 0xeb,
                             0x2c, 0xb0, 0x08, 0x46, 0x51, 0x75, 0x5c, 0x96 },
                .public = { 0xff, 0xff, 0xff, 0xfb, 0xff, 0xff, 0xfb, 0xff,
                            0xff, 0xdf, 0xff, 0xff, 0xdf, 0xff, 0xff, 0xff,
                            0xfe, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xf7, 0xff,
                            0xff, 0xf7, 0xff, 0xff, 0xbf, 0xff, 0xff, 0x3f },
                .result = { 0xbf, 0x9a, 0xff, 0xd0, 0x6b, 0x84, 0x40, 0x85,
                            0x58, 0x64, 0x60, 0x96, 0x2e, 0xf2, 0x14, 0x6f,
                            0xf3, 0xd4, 0x53, 0x3d, 0x94, 0x44, 0xaa, 0xb0,
                            0x06, 0xeb, 0x88, 0xcc, 0x30, 0x54, 0x40, 0x7d },
                .valid = true
        },
        /* wycheproof - edge case for public key */
        {
                .private = { 0x18, 0x8c, 0x4b, 0xc5, 0xb9, 0xc4, 0x4b, 0x38,
                             0xbb, 0x65, 0x8b, 0x9b, 0x2a, 0xe8, 0x2d, 0x5b,
                             0x01, 0x01, 0x5e, 0x09, 0x31, 0x84, 0xb1, 0x7c,
                             0xb7, 0x86, 0x35, 0x03, 0xa7, 0x83, 0xe1, 0xbb },
                .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
                .result = { 0xd4, 0x80, 0xde, 0x04, 0xf6, 0x99, 0xcb, 0x3b,
                            0xe0, 0x68, 0x4a, 0x9c, 0xc2, 0xe3, 0x12, 0x81,
                            0xea, 0x0b, 0xc5, 0xa9, 0xdc, 0xc1, 0x57, 0xd3,
                            0xd2, 0x01, 0x58, 0xd4, 0x6c, 0xa5, 0x24, 0x6d },
                .valid = true
        },
        /* wycheproof - edge case for public key */
        {
                .private = { 0xe0, 0x6c, 0x11, 0xbb, 0x2e, 0x13, 0xce, 0x3d,
                             0xc7, 0x67, 0x3f, 0x67, 0xf5, 0x48, 0x22, 0x42,
                             0x90, 0x94, 0x23, 0xa9, 0xae, 0x95, 0xee, 0x98,
                             0x6a, 0x98, 0x8d, 0x98, 0xfa, 0xee, 0x23, 0xa2 },
                .public = { 0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
                            0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
                            0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f,
                            0xff, 0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0x7f },
                .result = { 0x4c, 0x44, 0x01, 0xcc, 0xe6, 0xb5, 0x1e, 0x4c,
                            0xb1, 0x8f, 0x27, 0x90, 0x24, 0x6c, 0x9b, 0xf9,
                            0x14, 0xdb, 0x66, 0x77, 0x50, 0xa1, 0xcb, 0x89,
                            0x06, 0x90, 0x92, 0xaf, 0x07, 0x29, 0x22, 0x76 },
                .valid = true
        },
        /* wycheproof - edge case for public key */
        {
                .private = { 0xc0, 0x65, 0x8c, 0x46, 0xdd, 0xe1, 0x81, 0x29,
                             0x29, 0x38, 0x77, 0x53, 0x5b, 0x11, 0x62, 0xb6,
                             0xf9, 0xf5, 0x41, 0x4a, 0x23, 0xcf, 0x4d, 0x2c,
                             0xbc, 0x14, 0x0a, 0x4d, 0x99, 0xda, 0x2b, 0x8f },
                .public = { 0xeb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x57, 0x8b, 0xa8, 0xcc, 0x2d, 0xbd, 0xc5, 0x75,
                            0xaf, 0xcf, 0x9d, 0xf2, 0xb3, 0xee, 0x61, 0x89,
                            0xf5, 0x33, 0x7d, 0x68, 0x54, 0xc7, 0x9b, 0x4c,
                            0xe1, 0x65, 0xea, 0x12, 0x29, 0x3b, 0x3a, 0x0f },
                .valid = true
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x10, 0x25, 0x5c, 0x92, 0x30, 0xa9, 0x7a, 0x30,
                             0xa4, 0x58, 0xca, 0x28, 0x4a, 0x62, 0x96, 0x69,
                             0x29, 0x3a, 0x31, 0x89, 0x0c, 0xda, 0x9d, 0x14,
                             0x7f, 0xeb, 0xc7, 0xd1, 0xe2, 0x2d, 0x6b, 0xb1 },
                .public = { 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae,
                            0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a,
                            0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd,
                            0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x00 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x78, 0xf1, 0xe8, 0xed, 0xf1, 0x44, 0x81, 0xb3,
                             0x89, 0x44, 0x8d, 0xac, 0x8f, 0x59, 0xc7, 0x0b,
                             0x03, 0x8e, 0x7c, 0xf9, 0x2e, 0xf2, 0xc7, 0xef,
                             0xf5, 0x7a, 0x72, 0x46, 0x6e, 0x11, 0x52, 0x96 },
                .public = { 0x5f, 0x9c, 0x95, 0xbc, 0xa3, 0x50, 0x8c, 0x24,
                            0xb1, 0xd0, 0xb1, 0x55, 0x9c, 0x83, 0xef, 0x5b,
                            0x04, 0x44, 0x5c, 0xc4, 0x58, 0x1c, 0x8e, 0x86,
                            0xd8, 0x22, 0x4e, 0xdd, 0xd0, 0x9f, 0x11, 0x57 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0xa0, 0xa0, 0x5a, 0x3e, 0x8f, 0x9f, 0x44, 0x20,
                             0x4d, 0x5f, 0x80, 0x59, 0xa9, 0x4a, 0xc7, 0xdf,
                             0xc3, 0x9a, 0x49, 0xac, 0x01, 0x6d, 0xd7, 0x43,
                             0xdb, 0xfa, 0x43, 0xc5, 0xd6, 0x71, 0xfd, 0x88 },
                .public = { 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0xd0, 0xdb, 0xb3, 0xed, 0x19, 0x06, 0x66, 0x3f,
                             0x15, 0x42, 0x0a, 0xf3, 0x1f, 0x4e, 0xaf, 0x65,
                             0x09, 0xd9, 0xa9, 0x94, 0x97, 0x23, 0x50, 0x06,
                             0x05, 0xad, 0x7c, 0x1c, 0x6e, 0x74, 0x50, 0xa9 },
                .public = { 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0xc0, 0xb1, 0xd0, 0xeb, 0x22, 0xb2, 0x44, 0xfe,
                             0x32, 0x91, 0x14, 0x00, 0x72, 0xcd, 0xd9, 0xd9,
                             0x89, 0xb5, 0xf0, 0xec, 0xd9, 0x6c, 0x10, 0x0f,
                             0xeb, 0x5b, 0xca, 0x24, 0x1c, 0x1d, 0x9f, 0x8f },
                .public = { 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x48, 0x0b, 0xf4, 0x5f, 0x59, 0x49, 0x42, 0xa8,
                             0xbc, 0x0f, 0x33, 0x53, 0xc6, 0xe8, 0xb8, 0x85,
                             0x3d, 0x77, 0xf3, 0x51, 0xf1, 0xc2, 0xca, 0x6c,
                             0x2d, 0x1a, 0xbf, 0x8a, 0x00, 0xb4, 0x22, 0x9c },
                .public = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x30, 0xf9, 0x93, 0xfc, 0xf8, 0x51, 0x4f, 0xc8,
                             0x9b, 0xd8, 0xdb, 0x14, 0xcd, 0x43, 0xba, 0x0d,
                             0x4b, 0x25, 0x30, 0xe7, 0x3c, 0x42, 0x76, 0xa0,
                             0x5e, 0x1b, 0x14, 0x5d, 0x42, 0x0c, 0xed, 0xb4 },
                .public = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0xc0, 0x49, 0x74, 0xb7, 0x58, 0x38, 0x0e, 0x2a,
                             0x5b, 0x5d, 0xf6, 0xeb, 0x09, 0xbb, 0x2f, 0x6b,
                             0x34, 0x34, 0xf9, 0x82, 0x72, 0x2a, 0x8e, 0x67,
                             0x6d, 0x3d, 0xa2, 0x51, 0xd1, 0xb3, 0xde, 0x83 },
                .public = { 0xe0, 0xeb, 0x7a, 0x7c, 0x3b, 0x41, 0xb8, 0xae,
                            0x16, 0x56, 0xe3, 0xfa, 0xf1, 0x9f, 0xc4, 0x6a,
                            0xda, 0x09, 0x8d, 0xeb, 0x9c, 0x32, 0xb1, 0xfd,
                            0x86, 0x62, 0x05, 0x16, 0x5f, 0x49, 0xb8, 0x80 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x50, 0x2a, 0x31, 0x37, 0x3d, 0xb3, 0x24, 0x46,
                             0x84, 0x2f, 0xe5, 0xad, 0xd3, 0xe0, 0x24, 0x02,
                             0x2e, 0xa5, 0x4f, 0x27, 0x41, 0x82, 0xaf, 0xc3,
                             0xd9, 0xf1, 0xbb, 0x3d, 0x39, 0x53, 0x4e, 0xb5 },
                .public = { 0x5f, 0x9c, 0x95, 0xbc, 0xa3, 0x50, 0x8c, 0x24,
                            0xb1, 0xd0, 0xb1, 0x55, 0x9c, 0x83, 0xef, 0x5b,
                            0x04, 0x44, 0x5c, 0xc4, 0x58, 0x1c, 0x8e, 0x86,
                            0xd8, 0x22, 0x4e, 0xdd, 0xd0, 0x9f, 0x11, 0xd7 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x90, 0xfa, 0x64, 0x17, 0xb0, 0xe3, 0x70, 0x30,
                             0xfd, 0x6e, 0x43, 0xef, 0xf2, 0xab, 0xae, 0xf1,
                             0x4c, 0x67, 0x93, 0x11, 0x7a, 0x03, 0x9c, 0xf6,
                             0x21, 0x31, 0x8b, 0xa9, 0x0f, 0x4e, 0x98, 0xbe },
                .public = { 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x78, 0xad, 0x3f, 0x26, 0x02, 0x7f, 0x1c, 0x9f,
                             0xdd, 0x97, 0x5a, 0x16, 0x13, 0xb9, 0x47, 0x77,
                             0x9b, 0xad, 0x2c, 0xf2, 0xb7, 0x41, 0xad, 0xe0,
                             0x18, 0x40, 0x88, 0x5a, 0x30, 0xbb, 0x97, 0x9c },
                .public = { 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key with low order */
        {
                .private = { 0x98, 0xe2, 0x3d, 0xe7, 0xb1, 0xe0, 0x92, 0x6e,
                             0xd9, 0xc8, 0x7e, 0x7b, 0x14, 0xba, 0xf5, 0x5f,
                             0x49, 0x7a, 0x1d, 0x70, 0x96, 0xf9, 0x39, 0x77,
                             0x68, 0x0e, 0x44, 0xdc, 0x1c, 0x7b, 0x7b, 0x8b },
                .public = { 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = false
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0xf0, 0x1e, 0x48, 0xda, 0xfa, 0xc9, 0xd7, 0xbc,
                             0xf5, 0x89, 0xcb, 0xc3, 0x82, 0xc8, 0x78, 0xd1,
                             0x8b, 0xda, 0x35, 0x50, 0x58, 0x9f, 0xfb, 0x5d,
                             0x50, 0xb5, 0x23, 0xbe, 0xbe, 0x32, 0x9d, 0xae },
                .public = { 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0xbd, 0x36, 0xa0, 0x79, 0x0e, 0xb8, 0x83, 0x09,
                            0x8c, 0x98, 0x8b, 0x21, 0x78, 0x67, 0x73, 0xde,
                            0x0b, 0x3a, 0x4d, 0xf1, 0x62, 0x28, 0x2c, 0xf1,
                            0x10, 0xde, 0x18, 0xdd, 0x48, 0x4c, 0xe7, 0x4b },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x28, 0x87, 0x96, 0xbc, 0x5a, 0xff, 0x4b, 0x81,
                             0xa3, 0x75, 0x01, 0x75, 0x7b, 0xc0, 0x75, 0x3a,
                             0x3c, 0x21, 0x96, 0x47, 0x90, 0xd3, 0x86, 0x99,
                             0x30, 0x8d, 0xeb, 0xc1, 0x7a, 0x6e, 0xaf, 0x8d },
                .public = { 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0xb4, 0xe0, 0xdd, 0x76, 0xda, 0x7b, 0x07, 0x17,
                            0x28, 0xb6, 0x1f, 0x85, 0x67, 0x71, 0xaa, 0x35,
                            0x6e, 0x57, 0xed, 0xa7, 0x8a, 0x5b, 0x16, 0x55,
                            0xcc, 0x38, 0x20, 0xfb, 0x5f, 0x85, 0x4c, 0x5c },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x98, 0xdf, 0x84, 0x5f, 0x66, 0x51, 0xbf, 0x11,
                             0x38, 0x22, 0x1f, 0x11, 0x90, 0x41, 0xf7, 0x2b,
                             0x6d, 0xbc, 0x3c, 0x4a, 0xce, 0x71, 0x43, 0xd9,
                             0x9f, 0xd5, 0x5a, 0xd8, 0x67, 0x48, 0x0d, 0xa8 },
                .public = { 0xf1, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x6f, 0xdf, 0x6c, 0x37, 0x61, 0x1d, 0xbd, 0x53,
                            0x04, 0xdc, 0x0f, 0x2e, 0xb7, 0xc9, 0x51, 0x7e,
                            0xb3, 0xc5, 0x0e, 0x12, 0xfd, 0x05, 0x0a, 0xc6,
                            0xde, 0xc2, 0x70, 0x71, 0xd4, 0xbf, 0xc0, 0x34 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0xf0, 0x94, 0x98, 0xe4, 0x6f, 0x02, 0xf8, 0x78,
                             0x82, 0x9e, 0x78, 0xb8, 0x03, 0xd3, 0x16, 0xa2,
                             0xed, 0x69, 0x5d, 0x04, 0x98, 0xa0, 0x8a, 0xbd,
                             0xf8, 0x27, 0x69, 0x30, 0xe2, 0x4e, 0xdc, 0xb0 },
                .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .result = { 0x4c, 0x8f, 0xc4, 0xb1, 0xc6, 0xab, 0x88, 0xfb,
                            0x21, 0xf1, 0x8f, 0x6d, 0x4c, 0x81, 0x02, 0x40,
                            0xd4, 0xe9, 0x46, 0x51, 0xba, 0x44, 0xf7, 0xa2,
                            0xc8, 0x63, 0xce, 0xc7, 0xdc, 0x56, 0x60, 0x2d },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x18, 0x13, 0xc1, 0x0a, 0x5c, 0x7f, 0x21, 0xf9,
                             0x6e, 0x17, 0xf2, 0x88, 0xc0, 0xcc, 0x37, 0x60,
                             0x7c, 0x04, 0xc5, 0xf5, 0xae, 0xa2, 0xdb, 0x13,
                             0x4f, 0x9e, 0x2f, 0xfc, 0x66, 0xbd, 0x9d, 0xb8 },
                .public = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
                .result = { 0x1c, 0xd0, 0xb2, 0x82, 0x67, 0xdc, 0x54, 0x1c,
                            0x64, 0x2d, 0x6d, 0x7d, 0xca, 0x44, 0xa8, 0xb3,
                            0x8a, 0x63, 0x73, 0x6e, 0xef, 0x5c, 0x4e, 0x65,
                            0x01, 0xff, 0xbb, 0xb1, 0x78, 0x0c, 0x03, 0x3c },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x78, 0x57, 0xfb, 0x80, 0x86, 0x53, 0x64, 0x5a,
                             0x0b, 0xeb, 0x13, 0x8a, 0x64, 0xf5, 0xf4, 0xd7,
                             0x33, 0xa4, 0x5e, 0xa8, 0x4c, 0x3c, 0xda, 0x11,
                             0xa9, 0xc0, 0x6f, 0x7e, 0x71, 0x39, 0x14, 0x9e },
                .public = { 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
                .result = { 0x87, 0x55, 0xbe, 0x01, 0xc6, 0x0a, 0x7e, 0x82,
                            0x5c, 0xff, 0x3e, 0x0e, 0x78, 0xcb, 0x3a, 0xa4,
                            0x33, 0x38, 0x61, 0x51, 0x6a, 0xa5, 0x9b, 0x1c,
                            0x51, 0xa8, 0xb2, 0xa5, 0x43, 0xdf, 0xa8, 0x22 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0xe0, 0x3a, 0xa8, 0x42, 0xe2, 0xab, 0xc5, 0x6e,
                             0x81, 0xe8, 0x7b, 0x8b, 0x9f, 0x41, 0x7b, 0x2a,
                             0x1e, 0x59, 0x13, 0xc7, 0x23, 0xee, 0xd2, 0x8d,
                             0x75, 0x2f, 0x8d, 0x47, 0xa5, 0x9f, 0x49, 0x8f },
                .public = { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80 },
                .result = { 0x54, 0xc9, 0xa1, 0xed, 0x95, 0xe5, 0x46, 0xd2,
                            0x78, 0x22, 0xa3, 0x60, 0x93, 0x1d, 0xda, 0x60,
                            0xa1, 0xdf, 0x04, 0x9d, 0xa6, 0xf9, 0x04, 0x25,
                            0x3c, 0x06, 0x12, 0xbb, 0xdc, 0x08, 0x74, 0x76 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0xf8, 0xf7, 0x07, 0xb7, 0x99, 0x9b, 0x18, 0xcb,
                             0x0d, 0x6b, 0x96, 0x12, 0x4f, 0x20, 0x45, 0x97,
                             0x2c, 0xa2, 0x74, 0xbf, 0xc1, 0x54, 0xad, 0x0c,
                             0x87, 0x03, 0x8c, 0x24, 0xc6, 0xd0, 0xd4, 0xb2 },
                .public = { 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0xcc, 0x1f, 0x40, 0xd7, 0x43, 0xcd, 0xc2, 0x23,
                            0x0e, 0x10, 0x43, 0xda, 0xba, 0x8b, 0x75, 0xe8,
                            0x10, 0xf1, 0xfb, 0xab, 0x7f, 0x25, 0x52, 0x69,
                            0xbd, 0x9e, 0xbb, 0x29, 0xe6, 0xbf, 0x49, 0x4f },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0xa0, 0x34, 0xf6, 0x84, 0xfa, 0x63, 0x1e, 0x1a,
                             0x34, 0x81, 0x18, 0xc1, 0xce, 0x4c, 0x98, 0x23,
                             0x1f, 0x2d, 0x9e, 0xec, 0x9b, 0xa5, 0x36, 0x5b,
                             0x4a, 0x05, 0xd6, 0x9a, 0x78, 0x5b, 0x07, 0x96 },
                .public = { 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x54, 0x99, 0x8e, 0xe4, 0x3a, 0x5b, 0x00, 0x7b,
                            0xf4, 0x99, 0xf0, 0x78, 0xe7, 0x36, 0x52, 0x44,
                            0x00, 0xa8, 0xb5, 0xc7, 0xe9, 0xb9, 0xb4, 0x37,
                            0x71, 0x74, 0x8c, 0x7c, 0xdf, 0x88, 0x04, 0x12 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x30, 0xb6, 0xc6, 0xa0, 0xf2, 0xff, 0xa6, 0x80,
                             0x76, 0x8f, 0x99, 0x2b, 0xa8, 0x9e, 0x15, 0x2d,
                             0x5b, 0xc9, 0x89, 0x3d, 0x38, 0xc9, 0x11, 0x9b,
                             0xe4, 0xf7, 0x67, 0xbf, 0xab, 0x6e, 0x0c, 0xa5 },
                .public = { 0xdc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0xea, 0xd9, 0xb3, 0x8e, 0xfd, 0xd7, 0x23, 0x63,
                            0x79, 0x34, 0xe5, 0x5a, 0xb7, 0x17, 0xa7, 0xae,
                            0x09, 0xeb, 0x86, 0xa2, 0x1d, 0xc3, 0x6a, 0x3f,
                            0xee, 0xb8, 0x8b, 0x75, 0x9e, 0x39, 0x1e, 0x09 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x90, 0x1b, 0x9d, 0xcf, 0x88, 0x1e, 0x01, 0xe0,
                             0x27, 0x57, 0x50, 0x35, 0xd4, 0x0b, 0x43, 0xbd,
                             0xc1, 0xc5, 0x24, 0x2e, 0x03, 0x08, 0x47, 0x49,
                             0x5b, 0x0c, 0x72, 0x86, 0x46, 0x9b, 0x65, 0x91 },
                .public = { 0xea, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x60, 0x2f, 0xf4, 0x07, 0x89, 0xb5, 0x4b, 0x41,
                            0x80, 0x59, 0x15, 0xfe, 0x2a, 0x62, 0x21, 0xf0,
                            0x7a, 0x50, 0xff, 0xc2, 0xc3, 0xfc, 0x94, 0xcf,
                            0x61, 0xf1, 0x3d, 0x79, 0x04, 0xe8, 0x8e, 0x0e },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x80, 0x46, 0x67, 0x7c, 0x28, 0xfd, 0x82, 0xc9,
                             0xa1, 0xbd, 0xb7, 0x1a, 0x1a, 0x1a, 0x34, 0xfa,
                             0xba, 0x12, 0x25, 0xe2, 0x50, 0x7f, 0xe3, 0xf5,
                             0x4d, 0x10, 0xbd, 0x5b, 0x0d, 0x86, 0x5f, 0x8e },
                .public = { 0xeb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0xe0, 0x0a, 0xe8, 0xb1, 0x43, 0x47, 0x12, 0x47,
                            0xba, 0x24, 0xf1, 0x2c, 0x88, 0x55, 0x36, 0xc3,
                            0xcb, 0x98, 0x1b, 0x58, 0xe1, 0xe5, 0x6b, 0x2b,
                            0xaf, 0x35, 0xc1, 0x2a, 0xe1, 0xf7, 0x9c, 0x26 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x60, 0x2f, 0x7e, 0x2f, 0x68, 0xa8, 0x46, 0xb8,
                             0x2c, 0xc2, 0x69, 0xb1, 0xd4, 0x8e, 0x93, 0x98,
                             0x86, 0xae, 0x54, 0xfd, 0x63, 0x6c, 0x1f, 0xe0,
                             0x74, 0xd7, 0x10, 0x12, 0x7d, 0x47, 0x24, 0x91 },
                .public = { 0xef, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x98, 0xcb, 0x9b, 0x50, 0xdd, 0x3f, 0xc2, 0xb0,
                            0xd4, 0xf2, 0xd2, 0xbf, 0x7c, 0x5c, 0xfd, 0xd1,
                            0x0c, 0x8f, 0xcd, 0x31, 0xfc, 0x40, 0xaf, 0x1a,
                            0xd4, 0x4f, 0x47, 0xc1, 0x31, 0x37, 0x63, 0x62 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x60, 0x88, 0x7b, 0x3d, 0xc7, 0x24, 0x43, 0x02,
                             0x6e, 0xbe, 0xdb, 0xbb, 0xb7, 0x06, 0x65, 0xf4,
                             0x2b, 0x87, 0xad, 0xd1, 0x44, 0x0e, 0x77, 0x68,
                             0xfb, 0xd7, 0xe8, 0xe2, 0xce, 0x5f, 0x63, 0x9d },
                .public = { 0xf0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x38, 0xd6, 0x30, 0x4c, 0x4a, 0x7e, 0x6d, 0x9f,
                            0x79, 0x59, 0x33, 0x4f, 0xb5, 0x24, 0x5b, 0xd2,
                            0xc7, 0x54, 0x52, 0x5d, 0x4c, 0x91, 0xdb, 0x95,
                            0x02, 0x06, 0x92, 0x62, 0x34, 0xc1, 0xf6, 0x33 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0x78, 0xd3, 0x1d, 0xfa, 0x85, 0x44, 0x97, 0xd7,
                             0x2d, 0x8d, 0xef, 0x8a, 0x1b, 0x7f, 0xb0, 0x06,
                             0xce, 0xc2, 0xd8, 0xc4, 0x92, 0x46, 0x47, 0xc9,
                             0x38, 0x14, 0xae, 0x56, 0xfa, 0xed, 0xa4, 0x95 },
                .public = { 0xf1, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x78, 0x6c, 0xd5, 0x49, 0x96, 0xf0, 0x14, 0xa5,
                            0xa0, 0x31, 0xec, 0x14, 0xdb, 0x81, 0x2e, 0xd0,
                            0x83, 0x55, 0x06, 0x1f, 0xdb, 0x5d, 0xe6, 0x80,
                            0xa8, 0x00, 0xac, 0x52, 0x1f, 0x31, 0x8e, 0x23 },
                .valid = true
        },
        /* wycheproof - public key >= p */
        {
                .private = { 0xc0, 0x4c, 0x5b, 0xae, 0xfa, 0x83, 0x02, 0xdd,
                             0xde, 0xd6, 0xa4, 0xbb, 0x95, 0x77, 0x61, 0xb4,
                             0xeb, 0x97, 0xae, 0xfa, 0x4f, 0xc3, 0xb8, 0x04,
                             0x30, 0x85, 0xf9, 0x6a, 0x56, 0x59, 0xb3, 0xa5 },
                .public = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
                .result = { 0x29, 0xae, 0x8b, 0xc7, 0x3e, 0x9b, 0x10, 0xa0,
                            0x8b, 0x4f, 0x68, 0x1c, 0x43, 0xc3, 0xe0, 0xac,
                            0x1a, 0x17, 0x1d, 0x31, 0xb3, 0x8f, 0x1a, 0x48,
                            0xef, 0xba, 0x29, 0xae, 0x63, 0x9e, 0xa1, 0x34 },
                .valid = true
        },
        /* wycheproof - RFC 7748 */
        {
                .private = { 0xa0, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d,
                             0x3b, 0x16, 0x15, 0x4b, 0x82, 0x46, 0x5e, 0xdd,
                             0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc, 0x5a, 0x18,
                             0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0x44 },
                .public = { 0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb,
                            0x35, 0x94, 0xc1, 0xa4, 0x24, 0xb1, 0x5f, 0x7c,
                            0x72, 0x66, 0x24, 0xec, 0x26, 0xb3, 0x35, 0x3b,
                            0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c },
                .result = { 0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90,
                            0x8e, 0x94, 0xea, 0x4d, 0xf2, 0x8d, 0x08, 0x4f,
                            0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c, 0x71, 0xf7,
                            0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52 },
                .valid = true
        },
        /* wycheproof - RFC 7748 */
        {
                .private = { 0x48, 0x66, 0xe9, 0xd4, 0xd1, 0xb4, 0x67, 0x3c,
                             0x5a, 0xd2, 0x26, 0x91, 0x95, 0x7d, 0x6a, 0xf5,
                             0xc1, 0x1b, 0x64, 0x21, 0xe0, 0xea, 0x01, 0xd4,
                             0x2c, 0xa4, 0x16, 0x9e, 0x79, 0x18, 0xba, 0x4d },
                .public = { 0xe5, 0x21, 0x0f, 0x12, 0x78, 0x68, 0x11, 0xd3,
                            0xf4, 0xb7, 0x95, 0x9d, 0x05, 0x38, 0xae, 0x2c,
                            0x31, 0xdb, 0xe7, 0x10, 0x6f, 0xc0, 0x3c, 0x3e,
                            0xfc, 0x4c, 0xd5, 0x49, 0xc7, 0x15, 0xa4, 0x13 },
                .result = { 0x95, 0xcb, 0xde, 0x94, 0x76, 0xe8, 0x90, 0x7d,
                            0x7a, 0xad, 0xe4, 0x5c, 0xb4, 0xb8, 0x73, 0xf8,
                            0x8b, 0x59, 0x5a, 0x68, 0x79, 0x9f, 0xa1, 0x52,
                            0xe6, 0xf8, 0xf7, 0x64, 0x7a, 0xac, 0x79, 0x57 },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x0a, 0xb4, 0xe7, 0x63, 0x80, 0xd8, 0x4d, 0xde,
                            0x4f, 0x68, 0x33, 0xc5, 0x8f, 0x2a, 0x9f, 0xb8,
                            0xf8, 0x3b, 0xb0, 0x16, 0x9b, 0x17, 0x2b, 0xe4,
                            0xb6, 0xe0, 0x59, 0x28, 0x87, 0x74, 0x1a, 0x36 },
                .result = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x89, 0xe1, 0x0d, 0x57, 0x01, 0xb4, 0x33, 0x7d,
                            0x2d, 0x03, 0x21, 0x81, 0x53, 0x8b, 0x10, 0x64,
                            0xbd, 0x40, 0x84, 0x40, 0x1c, 0xec, 0xa1, 0xfd,
                            0x12, 0x66, 0x3a, 0x19, 0x59, 0x38, 0x80, 0x00 },
                .result = { 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x2b, 0x55, 0xd3, 0xaa, 0x4a, 0x8f, 0x80, 0xc8,
                            0xc0, 0xb2, 0xae, 0x5f, 0x93, 0x3e, 0x85, 0xaf,
                            0x49, 0xbe, 0xac, 0x36, 0xc2, 0xfa, 0x73, 0x94,
                            0xba, 0xb7, 0x6c, 0x89, 0x33, 0xf8, 0xf8, 0x1d },
                .result = { 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x63, 0xe5, 0xb1, 0xfe, 0x96, 0x01, 0xfe, 0x84,
                            0x38, 0x5d, 0x88, 0x66, 0xb0, 0x42, 0x12, 0x62,
                            0xf7, 0x8f, 0xbf, 0xa5, 0xaf, 0xf9, 0x58, 0x5e,
                            0x62, 0x66, 0x79, 0xb1, 0x85, 0x47, 0xd9, 0x59 },
                .result = { 0xfe, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0xe4, 0x28, 0xf3, 0xda, 0xc1, 0x78, 0x09, 0xf8,
                            0x27, 0xa5, 0x22, 0xce, 0x32, 0x35, 0x50, 0x58,
                            0xd0, 0x73, 0x69, 0x36, 0x4a, 0xa7, 0x89, 0x02,
                            0xee, 0x10, 0x13, 0x9b, 0x9f, 0x9d, 0xd6, 0x53 },
                .result = { 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0xb3, 0xb5, 0x0e, 0x3e, 0xd3, 0xa4, 0x07, 0xb9,
                            0x5d, 0xe9, 0x42, 0xef, 0x74, 0x57, 0x5b, 0x5a,
                            0xb8, 0xa1, 0x0c, 0x09, 0xee, 0x10, 0x35, 0x44,
                            0xd6, 0x0b, 0xdf, 0xed, 0x81, 0x38, 0xab, 0x2b },
                .result = { 0xf9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x21, 0x3f, 0xff, 0xe9, 0x3d, 0x5e, 0xa8, 0xcd,
                            0x24, 0x2e, 0x46, 0x28, 0x44, 0x02, 0x99, 0x22,
                            0xc4, 0x3c, 0x77, 0xc9, 0xe3, 0xe4, 0x2f, 0x56,
                            0x2f, 0x48, 0x5d, 0x24, 0xc5, 0x01, 0xa2, 0x0b },
                .result = { 0xf3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x91, 0xb2, 0x32, 0xa1, 0x78, 0xb3, 0xcd, 0x53,
                            0x09, 0x32, 0x44, 0x1e, 0x61, 0x39, 0x41, 0x8f,
                            0x72, 0x17, 0x22, 0x92, 0xf1, 0xda, 0x4c, 0x18,
                            0x34, 0xfc, 0x5e, 0xbf, 0xef, 0xb5, 0x1e, 0x3f },
                .result = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x03 },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x04, 0x5c, 0x6e, 0x11, 0xc5, 0xd3, 0x32, 0x55,
                            0x6c, 0x78, 0x22, 0xfe, 0x94, 0xeb, 0xf8, 0x9b,
                            0x56, 0xa3, 0x87, 0x8d, 0xc2, 0x7c, 0xa0, 0x79,
                            0x10, 0x30, 0x58, 0x84, 0x9f, 0xab, 0xcb, 0x4f },
                .result = { 0xe5, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x1c, 0xa2, 0x19, 0x0b, 0x71, 0x16, 0x35, 0x39,
                            0x06, 0x3c, 0x35, 0x77, 0x3b, 0xda, 0x0c, 0x9c,
                            0x92, 0x8e, 0x91, 0x36, 0xf0, 0x62, 0x0a, 0xeb,
                            0x09, 0x3f, 0x09, 0x91, 0x97, 0xb7, 0xf7, 0x4e },
                .result = { 0xe3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0xf7, 0x6e, 0x90, 0x10, 0xac, 0x33, 0xc5, 0x04,
                            0x3b, 0x2d, 0x3b, 0x76, 0xa8, 0x42, 0x17, 0x10,
                            0x00, 0xc4, 0x91, 0x62, 0x22, 0xe9, 0xe8, 0x58,
                            0x97, 0xa0, 0xae, 0xc7, 0xf6, 0x35, 0x0b, 0x3c },
                .result = { 0xdd, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0xbb, 0x72, 0x68, 0x8d, 0x8f, 0x8a, 0xa7, 0xa3,
                            0x9c, 0xd6, 0x06, 0x0c, 0xd5, 0xc8, 0x09, 0x3c,
                            0xde, 0xc6, 0xfe, 0x34, 0x19, 0x37, 0xc3, 0x88,
                            0x6a, 0x99, 0x34, 0x6c, 0xd0, 0x7f, 0xaa, 0x55 },
                .result = { 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x88, 0xfd, 0xde, 0xa1, 0x93, 0x39, 0x1c, 0x6a,
                            0x59, 0x33, 0xef, 0x9b, 0x71, 0x90, 0x15, 0x49,
                            0x44, 0x72, 0x05, 0xaa, 0xe9, 0xda, 0x92, 0x8a,
                            0x6b, 0x91, 0xa3, 0x52, 0xba, 0x10, 0xf4, 0x1f },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 },
                .valid = true
        },
        /* wycheproof - edge case for shared secret */
        {
                .private = { 0xa0, 0xa4, 0xf1, 0x30, 0xb9, 0x8a, 0x5b, 0xe4,
                             0xb1, 0xce, 0xdb, 0x7c, 0xb8, 0x55, 0x84, 0xa3,
                             0x52, 0x0e, 0x14, 0x2d, 0x47, 0x4d, 0xc9, 0xcc,
                             0xb9, 0x09, 0xa0, 0x73, 0xa9, 0x76, 0xbf, 0x63 },
                .public = { 0x30, 0x3b, 0x39, 0x2f, 0x15, 0x31, 0x16, 0xca,
                            0xd9, 0xcc, 0x68, 0x2a, 0x00, 0xcc, 0xc4, 0x4c,
                            0x95, 0xff, 0x0d, 0x3b, 0xbe, 0x56, 0x8b, 0xeb,
                            0x6c, 0x4e, 0x73, 0x9b, 0xaf, 0xdc, 0x2c, 0x68 },
                .result = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00 },
                .valid = true
        },
        /* wycheproof - checking for overflow */
        {
                .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
                             0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
                             0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
                             0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
                .public = { 0xfd, 0x30, 0x0a, 0xeb, 0x40, 0xe1, 0xfa, 0x58,
                            0x25, 0x18, 0x41, 0x2b, 0x49, 0xb2, 0x08, 0xa7,
                            0x84, 0x2b, 0x1e, 0x1f, 0x05, 0x6a, 0x04, 0x01,
                            0x78, 0xea, 0x41, 0x41, 0x53, 0x4f, 0x65, 0x2d },
                .result = { 0xb7, 0x34, 0x10, 0x5d, 0xc2, 0x57, 0x58, 0x5d,
                            0x73, 0xb5, 0x66, 0xcc, 0xb7, 0x6f, 0x06, 0x27,
                            0x95, 0xcc, 0xbe, 0xc8, 0x91, 0x28, 0xe5, 0x2b,
                            0x02, 0xf3, 0xe5, 0x96, 0x39, 0xf1, 0x3c, 0x46 },
                .valid = true
        },
        /* wycheproof - checking for overflow */
        {
                .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
                             0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
                             0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
                             0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
                .public = { 0xc8, 0xef, 0x79, 0xb5, 0x14, 0xd7, 0x68, 0x26,
                            0x77, 0xbc, 0x79, 0x31, 0xe0, 0x6e, 0xe5, 0xc2,
                            0x7c, 0x9b, 0x39, 0x2b, 0x4a, 0xe9, 0x48, 0x44,
                            0x73, 0xf5, 0x54, 0xe6, 0x67, 0x8e, 0xcc, 0x2e },
                .result = { 0x64, 0x7a, 0x46, 0xb6, 0xfc, 0x3f, 0x40, 0xd6,
                            0x21, 0x41, 0xee, 0x3c, 0xee, 0x70, 0x6b, 0x4d,
                            0x7a, 0x92, 0x71, 0x59, 0x3a, 0x7b, 0x14, 0x3e,
                            0x8e, 0x2e, 0x22, 0x79, 0x88, 0x3e, 0x45, 0x50 },
                .valid = true
        },
        /* wycheproof - checking for overflow */
        {
                .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
                             0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
                             0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
                             0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
                .public = { 0x64, 0xae, 0xac, 0x25, 0x04, 0x14, 0x48, 0x61,
                            0x53, 0x2b, 0x7b, 0xbc, 0xb6, 0xc8, 0x7d, 0x67,
                            0xdd, 0x4c, 0x1f, 0x07, 0xeb, 0xc2, 0xe0, 0x6e,
                            0xff, 0xb9, 0x5a, 0xec, 0xc6, 0x17, 0x0b, 0x2c },
                .result = { 0x4f, 0xf0, 0x3d, 0x5f, 0xb4, 0x3c, 0xd8, 0x65,
                            0x7a, 0x3c, 0xf3, 0x7c, 0x13, 0x8c, 0xad, 0xce,
                            0xcc, 0xe5, 0x09, 0xe4, 0xeb, 0xa0, 0x89, 0xd0,
                            0xef, 0x40, 0xb4, 0xe4, 0xfb, 0x94, 0x61, 0x55 },
                .valid = true
        },
        /* wycheproof - checking for overflow */
        {
                .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
                             0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
                             0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
                             0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
                .public = { 0xbf, 0x68, 0xe3, 0x5e, 0x9b, 0xdb, 0x7e, 0xee,
                            0x1b, 0x50, 0x57, 0x02, 0x21, 0x86, 0x0f, 0x5d,
                            0xcd, 0xad, 0x8a, 0xcb, 0xab, 0x03, 0x1b, 0x14,
                            0x97, 0x4c, 0xc4, 0x90, 0x13, 0xc4, 0x98, 0x31 },
                .result = { 0x21, 0xce, 0xe5, 0x2e, 0xfd, 0xbc, 0x81, 0x2e,
                            0x1d, 0x02, 0x1a, 0x4a, 0xf1, 0xe1, 0xd8, 0xbc,
                            0x4d, 0xb3, 0xc4, 0x00, 0xe4, 0xd2, 0xa2, 0xc5,
                            0x6a, 0x39, 0x26, 0xdb, 0x4d, 0x99, 0xc6, 0x5b },
                .valid = true
        },
        /* wycheproof - checking for overflow */
        {
                .private = { 0xc8, 0x17, 0x24, 0x70, 0x40, 0x00, 0xb2, 0x6d,
                             0x31, 0x70, 0x3c, 0xc9, 0x7e, 0x3a, 0x37, 0x8d,
                             0x56, 0xfa, 0xd8, 0x21, 0x93, 0x61, 0xc8, 0x8c,
                             0xca, 0x8b, 0xd7, 0xc5, 0x71, 0x9b, 0x12, 0xb2 },
                .public = { 0x53, 0x47, 0xc4, 0x91, 0x33, 0x1a, 0x64, 0xb4,
                            0x3d, 0xdc, 0x68, 0x30, 0x34, 0xe6, 0x77, 0xf5,
                            0x3d, 0xc3, 0x2b, 0x52, 0xa5, 0x2a, 0x57, 0x7c,
                            0x15, 0xa8, 0x3b, 0xf2, 0x98, 0xe9, 0x9f, 0x19 },
                .result = { 0x18, 0xcb, 0x89, 0xe4, 0xe2, 0x0c, 0x0c, 0x2b,
                            0xd3, 0x24, 0x30, 0x52, 0x45, 0x26, 0x6c, 0x93,
                            0x27, 0x69, 0x0b, 0xbe, 0x79, 0xac, 0xb8, 0x8f,
                            0x5b, 0x8f, 0xb3, 0xf7, 0x4e, 0xca, 0x3e, 0x52 },
                .valid = true
        },
        /* wycheproof - private key == -1 (mod order) */
        {
                .private = { 0xa0, 0x23, 0xcd, 0xd0, 0x83, 0xef, 0x5b, 0xb8,
                             0x2f, 0x10, 0xd6, 0x2e, 0x59, 0xe1, 0x5a, 0x68,
                             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50 },
                .public = { 0x25, 0x8e, 0x04, 0x52, 0x3b, 0x8d, 0x25, 0x3e,
                            0xe6, 0x57, 0x19, 0xfc, 0x69, 0x06, 0xc6, 0x57,
                            0x19, 0x2d, 0x80, 0x71, 0x7e, 0xdc, 0x82, 0x8f,
                            0xa0, 0xaf, 0x21, 0x68, 0x6e, 0x2f, 0xaa, 0x75 },
                .result = { 0x25, 0x8e, 0x04, 0x52, 0x3b, 0x8d, 0x25, 0x3e,
                            0xe6, 0x57, 0x19, 0xfc, 0x69, 0x06, 0xc6, 0x57,
                            0x19, 0x2d, 0x80, 0x71, 0x7e, 0xdc, 0x82, 0x8f,
                            0xa0, 0xaf, 0x21, 0x68, 0x6e, 0x2f, 0xaa, 0x75 },
                .valid = true
        },
        /* wycheproof - private key == 1 (mod order) on twist */
        {
                .private = { 0x58, 0x08, 0x3d, 0xd2, 0x61, 0xad, 0x91, 0xef,
                             0xf9, 0x52, 0x32, 0x2e, 0xc8, 0x24, 0xc6, 0x82,
                             0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
                             0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x5f },
                .public = { 0x2e, 0xae, 0x5e, 0xc3, 0xdd, 0x49, 0x4e, 0x9f,
                            0x2d, 0x37, 0xd2, 0x58, 0xf8, 0x73, 0xa8, 0xe6,
                            0xe9, 0xd0, 0xdb, 0xd1, 0xe3, 0x83, 0xef, 0x64,
                            0xd9, 0x8b, 0xb9, 0x1b, 0x3e, 0x0b, 0xe0, 0x35 },
                .result = { 0x2e, 0xae, 0x5e, 0xc3, 0xdd, 0x49, 0x4e, 0x9f,
                            0x2d, 0x37, 0xd2, 0x58, 0xf8, 0x73, 0xa8, 0xe6,
                            0xe9, 0xd0, 0xdb, 0xd1, 0xe3, 0x83, 0xef, 0x64,
                            0xd9, 0x8b, 0xb9, 0x1b, 0x3e, 0x0b, 0xe0, 0x35 },
                .valid = true
        }
};

static void test_curve25519(struct kunit *test)
{
        for (size_t i = 0; i < ARRAY_SIZE(curve25519_test_vectors); ++i) {
                const struct curve25519_test_vector *vec =
                        &curve25519_test_vectors[i];
                u8 out[CURVE25519_KEY_SIZE] = {};
                bool ret;

                ret = curve25519(out, vec->private, vec->public);
                KUNIT_EXPECT_EQ_MSG(test, ret, vec->valid,
                                    "Wrong return value with test vector %zu",
                                    i);
                KUNIT_EXPECT_MEMEQ_MSG(test, out, vec->result, sizeof(out),
                                       "Wrong output with test vector %zu", i);
        }
}

static void test_curve25519_basepoint(struct kunit *test)
{
        for (size_t i = 0; i < 5; ++i) {
                u8 in[CURVE25519_KEY_SIZE];
                u8 out[CURVE25519_KEY_SIZE];
                u8 out2[CURVE25519_KEY_SIZE];
                bool ret, ret2;

                get_random_bytes(in, sizeof(in));
                ret = curve25519_generate_public(out, in);
                ret2 = curve25519(out2, in, (u8[CURVE25519_KEY_SIZE]){ 9 });
                KUNIT_EXPECT_EQ_MSG(test, ret, ret2,
                                    "in=%*phN", CURVE25519_KEY_SIZE, in);
                KUNIT_EXPECT_MEMEQ_MSG(test, out, out2, CURVE25519_KEY_SIZE,
                                       "in=%*phN", CURVE25519_KEY_SIZE, in);
        }
}

static void benchmark_curve25519(struct kunit *test)
{
        const u8 *private = curve25519_test_vectors[0].private;
        const u8 *public = curve25519_test_vectors[0].public;
        const size_t warmup_niter = 5000;
        const size_t benchmark_niter = 1024;
        u8 out[CURVE25519_KEY_SIZE];
        bool ok = true;
        u64 t;

        if (!IS_ENABLED(CONFIG_CRYPTO_LIB_BENCHMARK))
                kunit_skip(test, "not enabled");

        /* Warm-up */
        for (size_t i = 0; i < warmup_niter; i++)
                ok &= curve25519(out, private, public);

        /* Benchmark */
        preempt_disable();
        t = ktime_get_ns();
        for (size_t i = 0; i < benchmark_niter; i++)
                ok &= curve25519(out, private, public);
        t = ktime_get_ns() - t;
        preempt_enable();
        KUNIT_EXPECT_TRUE(test, ok);
        kunit_info(test, "%llu ops/s",
                   div64_u64((u64)benchmark_niter * NSEC_PER_SEC, t ?: 1));
}

static struct kunit_case curve25519_test_cases[] = {
        KUNIT_CASE(test_curve25519),
        KUNIT_CASE(test_curve25519_basepoint),
        KUNIT_CASE(benchmark_curve25519),
        {},
};

static struct kunit_suite curve25519_test_suite = {
        .name = "curve25519",
        .test_cases = curve25519_test_cases,
};
kunit_test_suite(curve25519_test_suite);

MODULE_DESCRIPTION("KUnit tests and benchmark for Curve25519");
MODULE_LICENSE("GPL");