#include <openssl/evp.h>
#include <openssl/core_names.h>
#include <openssl/param_build.h>
#include "predefined_dhparams.h"
#ifndef OPENSSL_NO_DH
static EVP_PKEY *get_dh_from_pg_bn(OSSL_LIB_CTX *libctx, const char *type,
BIGNUM *p, BIGNUM *g, BIGNUM *q)
{
EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_from_name(libctx, type, NULL);
OSSL_PARAM_BLD *tmpl = NULL;
OSSL_PARAM *params = NULL;
EVP_PKEY *dhpkey = NULL;
if (pctx == NULL || EVP_PKEY_fromdata_init(pctx) <= 0)
goto err;
if ((tmpl = OSSL_PARAM_BLD_new()) == NULL
|| !OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_P, p)
|| !OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_G, g)
|| (q != NULL
&& !OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_FFC_Q, q)))
goto err;
params = OSSL_PARAM_BLD_to_param(tmpl);
if (params == NULL
|| EVP_PKEY_fromdata(pctx, &dhpkey, EVP_PKEY_KEY_PARAMETERS, params) <= 0)
goto err;
err:
EVP_PKEY_CTX_free(pctx);
OSSL_PARAM_free(params);
OSSL_PARAM_BLD_free(tmpl);
return dhpkey;
}
static EVP_PKEY *get_dh_from_pg(OSSL_LIB_CTX *libctx, const char *type,
unsigned char *pdata, size_t plen,
unsigned char *gdata, size_t glen,
unsigned char *qdata, size_t qlen)
{
EVP_PKEY *dhpkey = NULL;
BIGNUM *p = NULL, *g = NULL, *q = NULL;
p = BN_bin2bn(pdata, plen, NULL);
g = BN_bin2bn(gdata, glen, NULL);
if (p == NULL || g == NULL)
goto err;
if (qdata != NULL && (q = BN_bin2bn(qdata, qlen, NULL)) == NULL)
goto err;
dhpkey = get_dh_from_pg_bn(libctx, type, p, g, q);
err:
BN_free(p);
BN_free(g);
BN_free(q);
return dhpkey;
}
EVP_PKEY *get_dh512(OSSL_LIB_CTX *libctx)
{
static unsigned char dh512_p[] = {
0xCB,
0xC8,
0xE1,
0x86,
0xD0,
0x1F,
0x94,
0x17,
0xA6,
0x99,
0xF0,
0xC6,
0x1F,
0x0D,
0xAC,
0xB6,
0x25,
0x3E,
0x06,
0x39,
0xCA,
0x72,
0x04,
0xB0,
0x6E,
0xDA,
0xC0,
0x61,
0xE6,
0x7A,
0x77,
0x25,
0xE8,
0x3B,
0xB9,
0x5F,
0x9A,
0xB6,
0xB5,
0xFE,
0x99,
0x0B,
0xA1,
0x93,
0x4E,
0x35,
0x33,
0xB8,
0xE1,
0xF1,
0x13,
0x4F,
0x59,
0x1A,
0xD2,
0x57,
0xC0,
0x26,
0x21,
0x33,
0x02,
0xC5,
0xAE,
0x23,
};
static unsigned char dh512_g[] = {
0x02,
};
return get_dh_from_pg(libctx, "DH", dh512_p, sizeof(dh512_p),
dh512_g, sizeof(dh512_g), NULL, 0);
}
EVP_PKEY *get_dhx512(OSSL_LIB_CTX *libctx)
{
static unsigned char dhx512_p[] = {
0x00,
0xe8,
0x1a,
0xb7,
0x9a,
0x02,
0x65,
0x64,
0x94,
0x7b,
0xba,
0x09,
0x1c,
0x12,
0x27,
0x1e,
0xea,
0x89,
0x32,
0x64,
0x78,
0xf8,
0x1c,
0x78,
0x8e,
0x96,
0xc3,
0xc6,
0x9f,
0x41,
0x05,
0x41,
0x65,
0xae,
0xe3,
0x05,
0xea,
0x66,
0x21,
0xf7,
0x38,
0xb7,
0x2b,
0x32,
0x40,
0x5a,
0x14,
0x86,
0x51,
0x94,
0xb1,
0xcf,
0x01,
0xe3,
0x27,
0x28,
0xf6,
0x75,
0xa3,
0x15,
0xbb,
0x12,
0x4d,
0x99,
0xe7,
};
static unsigned char dhx512_g[] = {
0x00,
0x91,
0xc1,
0x43,
0x6d,
0x0d,
0xb0,
0xa4,
0xde,
0x41,
0xb7,
0x93,
0xad,
0x51,
0x94,
0x1b,
0x43,
0xd8,
0x42,
0xf1,
0x5e,
0x46,
0x83,
0x5d,
0xf1,
0xd1,
0xf0,
0x41,
0x10,
0xd1,
0x1c,
0x5e,
0xad,
0x9b,
0x68,
0xb1,
0x6f,
0xf5,
0x8e,
0xaa,
0x6d,
0x71,
0x88,
0x37,
0xdf,
0x05,
0xf7,
0x6e,
0x7a,
0xb4,
0x25,
0x10,
0x6c,
0x7f,
0x38,
0xb4,
0xc8,
0xfc,
0xcc,
0x0c,
0x6a,
0x02,
0x08,
0x61,
0xf6,
};
static unsigned char dhx512_q[] = {
0x00,
0xdd,
0xf6,
0x35,
0xad,
0xfa,
0x70,
0xc7,
0xe7,
0xa8,
0xf0,
0xe3,
0xda,
0x79,
0x34,
0x3f,
0x5b,
0xcf,
0x73,
0x82,
0x91,
};
return get_dh_from_pg(libctx, "X9.42 DH",
dhx512_p, sizeof(dhx512_p),
dhx512_g, sizeof(dhx512_g),
dhx512_q, sizeof(dhx512_q));
}
EVP_PKEY *get_dh1024dsa(OSSL_LIB_CTX *libctx)
{
static unsigned char dh1024_p[] = {
0xC8,
0x00,
0xF7,
0x08,
0x07,
0x89,
0x4D,
0x90,
0x53,
0xF3,
0xD5,
0x00,
0x21,
0x1B,
0xF7,
0x31,
0xA6,
0xA2,
0xDA,
0x23,
0x9A,
0xC7,
0x87,
0x19,
0x3B,
0x47,
0xB6,
0x8C,
0x04,
0x6F,
0xFF,
0xC6,
0x9B,
0xB8,
0x65,
0xD2,
0xC2,
0x5F,
0x31,
0x83,
0x4A,
0xA7,
0x5F,
0x2F,
0x88,
0x38,
0xB6,
0x55,
0xCF,
0xD9,
0x87,
0x6D,
0x6F,
0x9F,
0xDA,
0xAC,
0xA6,
0x48,
0xAF,
0xFC,
0x33,
0x84,
0x37,
0x5B,
0x82,
0x4A,
0x31,
0x5D,
0xE7,
0xBD,
0x52,
0x97,
0xA1,
0x77,
0xBF,
0x10,
0x9E,
0x37,
0xEA,
0x64,
0xFA,
0xCA,
0x28,
0x8D,
0x9D,
0x3B,
0xD2,
0x6E,
0x09,
0x5C,
0x68,
0xC7,
0x45,
0x90,
0xFD,
0xBB,
0x70,
0xC9,
0x3A,
0xBB,
0xDF,
0xD4,
0x21,
0x0F,
0xC4,
0x6A,
0x3C,
0xF6,
0x61,
0xCF,
0x3F,
0xD6,
0x13,
0xF1,
0x5F,
0xBC,
0xCF,
0xBC,
0x26,
0x9E,
0xBC,
0x0B,
0xBD,
0xAB,
0x5D,
0xC9,
0x54,
0x39,
};
static unsigned char dh1024_g[] = {
0x3B,
0x40,
0x86,
0xE7,
0xF3,
0x6C,
0xDE,
0x67,
0x1C,
0xCC,
0x80,
0x05,
0x5A,
0xDF,
0xFE,
0xBD,
0x20,
0x27,
0x74,
0x6C,
0x24,
0xC9,
0x03,
0xF3,
0xE1,
0x8D,
0xC3,
0x7D,
0x98,
0x27,
0x40,
0x08,
0xB8,
0x8C,
0x6A,
0xE9,
0xBB,
0x1A,
0x3A,
0xD6,
0x86,
0x83,
0x5E,
0x72,
0x41,
0xCE,
0x85,
0x3C,
0xD2,
0xB3,
0xFC,
0x13,
0xCE,
0x37,
0x81,
0x9E,
0x4C,
0x1C,
0x7B,
0x65,
0xD3,
0xE6,
0xA6,
0x00,
0xF5,
0x5A,
0x95,
0x43,
0x5E,
0x81,
0xCF,
0x60,
0xA2,
0x23,
0xFC,
0x36,
0xA7,
0x5D,
0x7A,
0x4C,
0x06,
0x91,
0x6E,
0xF6,
0x57,
0xEE,
0x36,
0xCB,
0x06,
0xEA,
0xF5,
0x3D,
0x95,
0x49,
0xCB,
0xA7,
0xDD,
0x81,
0xDF,
0x80,
0x09,
0x4A,
0x97,
0x4D,
0xA8,
0x22,
0x72,
0xA1,
0x7F,
0xC4,
0x70,
0x56,
0x70,
0xE8,
0x20,
0x10,
0x18,
0x8F,
0x2E,
0x60,
0x07,
0xE7,
0x68,
0x1A,
0x82,
0x5D,
0x32,
0xA2,
};
return get_dh_from_pg(libctx, "DH", dh1024_p, sizeof(dh1024_p),
dh1024_g, sizeof(dh1024_g), NULL, 0);
}
EVP_PKEY *get_dh2048(OSSL_LIB_CTX *libctx)
{
BIGNUM *p = NULL, *g = NULL;
EVP_PKEY *dhpkey = NULL;
g = BN_new();
if (g == NULL || !BN_set_word(g, 2))
goto err;
p = BN_get_rfc3526_prime_2048(NULL);
if (p == NULL)
goto err;
dhpkey = get_dh_from_pg_bn(libctx, "DH", p, g, NULL);
err:
BN_free(p);
BN_free(g);
return dhpkey;
}
EVP_PKEY *get_dh4096(OSSL_LIB_CTX *libctx)
{
BIGNUM *p = NULL, *g = NULL;
EVP_PKEY *dhpkey = NULL;
g = BN_new();
if (g == NULL || !BN_set_word(g, 2))
goto err;
p = BN_get_rfc3526_prime_4096(NULL);
if (p == NULL)
goto err;
dhpkey = get_dh_from_pg_bn(libctx, "DH", p, g, NULL);
err:
BN_free(p);
BN_free(g);
return dhpkey;
}
#endif
