root/usr/src/common/crypto/dh/dh_impl.h
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef _DH_IMPL_H
#define _DH_IMPL_H

#ifdef __cplusplus
extern "C" {
#endif

#include <sys/types.h>
#include <bignum.h>

#define MIN_DH_KEYLENGTH_IN_BYTES       8
#define MAX_DH_KEYLENGTH_IN_BYTES       512
#define DH_MIN_KEY_LEN          64
#define DH_MAX_KEY_LEN          4096

#ifdef _KERNEL

#include <sys/sunddi.h>
#include <sys/crypto/common.h>

#define CK_RV                   ulong_t

#define CKR_OK                  CRYPTO_SUCCESS
#define CKR_ARGUMENTS_BAD       CRYPTO_ARGUMENTS_BAD
#define CKR_ATTRIBUTE_TYPE_INVALID      CRYPTO_ATTRIBUTE_TYPE_INVALID
#define CKR_ATTRIBUTE_VALUE_INVALID     CRYPTO_ATTRIBUTE_VALUE_INVALID
#define CKR_DEVICE_ERROR        CRYPTO_DEVICE_ERROR
#define CKR_GENERAL_ERROR       CRYPTO_GENERAL_ERROR
#define CKR_HOST_MEMORY         CRYPTO_HOST_MEMORY
#define CKR_KEY_SIZE_RANGE      CRYPTO_KEY_SIZE_RANGE

int random_get_bytes(uint8_t *ran_out, size_t ran_len);
int random_get_pseudo_bytes(uint8_t *ran_out, size_t ran_len);

#else

#include <security/cryptoki.h>
#include <security/pkcs11t.h>

#endif  /* _KERNEL */


/* DH key using BIGNUM representations */
typedef struct {
        int     size;           /* key size in bits */
        BIGNUM  p;              /* p (prime) */
        BIGNUM  g;              /* g (base) */
        BIGNUM  x;              /* private value (random) */
        BIGNUM  y;              /* public value (= g^x mod p) */
} DHkey;

/* DH key using byte string representations, useful for parameter lists */
typedef struct {
        uint32_t prime_bits;    /* size */
        uchar_t *prime;         /* p */
        uint32_t base_bytes;
        uchar_t *base;          /* g */
        uint32_t value_bits;    /* for both x and y */
        uchar_t *private_x;     /* x */
        uchar_t *public_y;      /* y */
        int     (*rfunc)(void *, size_t);       /* random function */
} DHbytekey;


CK_RV dh_genkey_pair(DHbytekey *bkey);

CK_RV dh_key_derive(DHbytekey *bkey, uint32_t key_type,
    uchar_t *secretkey, uint32_t *secretkey_len, int flag);

#ifdef  __cplusplus
}
#endif

#endif /* _DH_IMPL_H */