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SM2 KAP (Key Agreement Protocol), not tested

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This commit is contained in:
Zhi Guan
2016-04-07 22:15:41 +02:00
parent ef74cbd1e5
commit 5cc6cfdf22
55 changed files with 3803 additions and 1028 deletions
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65
crypto/ec/ec_pmeth.c
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@@ -499,9 +499,7 @@ static int pkey_ec_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen
{
EC_KEY *ec_key = ctx->pkey->pkey.ec;
ECIES_PARAMS *param = ECIES_get_parameters(ec_key);
fprintf(stderr, "%s %s %d\n", __FUNCTION__, __FILE__, __LINE__);
OPENSSL_assert(param);
return ECIES_encrypt(out, outlen, param, in, inlen, ec_key);
}
@@ -510,7 +508,7 @@ static int pkey_ec_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen
{
EC_KEY *ec_key = ctx->pkey->pkey.ec;
ECIES_PARAMS *param = ECIES_get_parameters(ec_key);
fprintf(stderr, "%s %s %d\n", __FUNCTION__, __FILE__, __LINE__);
OPENSSL_assert(param);
return ECIES_decrypt(out, outlen, param, in, inlen, ec_key);
}
#endif
@@ -564,6 +562,31 @@ const EVP_PKEY_METHOD ec_pkey_meth = {
};
#ifndef OPENSSL_NO_SM2
static int pkey_sm2_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
EC_KEY *ec = NULL;
EC_PKEY_CTX *dctx = ctx->data;
if (ctx->pkey == NULL && dctx->gen_group == NULL) {
ECerr(EC_F_PKEY_EC_KEYGEN, EC_R_NO_PARAMETERS_SET);
return 0;
}
ec = EC_KEY_new();
if (!ec)
return 0;
EVP_PKEY_assign_SM2(pkey, ec);
if (ctx->pkey) {
/* Note: if error return, pkey is freed by parent routine */
if (!EVP_PKEY_copy_parameters(pkey, ctx->pkey))
return 0;
} else {
if (!EC_KEY_set_group(ec, dctx->gen_group))
return 0;
}
return EC_KEY_generate_key(pkey->pkey.ec);
}
static int pkey_sm2_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
const unsigned char *dgst, size_t dgstlen)
{
@@ -611,7 +634,11 @@ static int pkey_sm2_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outle
const EVP_MD *mac_md = ec_ctx->md;
point_conversion_form_t point_form = SM2_DEFAULT_POINT_CONVERSION_FORM;
return SM2_encrypt(kdf_md, mac_md, point_form, out, outlen, in, inlen, ec_key);
//FIXME: the ec_ctx is not work, no one init it
kdf_md = EVP_sm3();
mac_md = EVP_sm3();
return SM2_encrypt(kdf_md, mac_md, point_form, in, inlen, out, outlen, ec_key);
}
static int pkey_sm2_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
@@ -623,35 +650,55 @@ static int pkey_sm2_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outle
const EVP_MD *mac_md = ec_ctx->md;
point_conversion_form_t point_form = SM2_DEFAULT_POINT_CONVERSION_FORM;
//FIXME: the ec_ctx is not work, no one init it
kdf_md = EVP_sm3();
mac_md = EVP_sm3();
return SM2_decrypt(kdf_md, mac_md, point_form, in, inlen, out, outlen, ec_key);
}
static int pkey_sm2_ctrl_digestinit(EVP_PKEY_CTX *pk_ctx, EVP_MD_CTX *md_ctx)
{
int ret;
int ret = 0;
EC_KEY *ec_key = pk_ctx->pkey->pkey.ec;
const EVP_MD *md = EVP_MD_CTX_md(md_ctx);
char *id;
unsigned char zid[EVP_MAX_MD_SIZE];
unsigned int zidlen = sizeof(zid);
EVP_PKEY_CTX *pctx;
fprintf(stderr, "%s() called\n", __FUNCTION__);
if (!(id = SM2_get_id(ec_key))) {
return 0;
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
id = "alice@pku.edu.cn";
//return 0;
}
//FIXME: check this function
if (!SM2_compute_id_digest(zid, &zidlen, md, id, strlen(zidlen), ec_key)) {
if (!SM2_compute_id_digest(zid, &zidlen, md, id, strlen(id), ec_key)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
return 0;
}
pctx = md_ctx->pctx;
md_ctx->pctx = NULL;
if (!EVP_DigestInit_ex(md_ctx, md, NULL)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
md_ctx->pctx = pctx;
if (!EVP_DigestUpdate(md_ctx, zid, zidlen)) {
fprintf(stderr, "error: %s %d\n", __FILE__, __LINE__);
goto end;
}
EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NO_INIT);
ret = 1;
end:
return ret;
}
@@ -677,7 +724,7 @@ const EVP_PKEY_METHOD sm2_pkey_meth = {
0, /* paramgen_init */
pkey_ec_paramgen,
0, /* keygen_init */
pkey_ec_keygen,
pkey_sm2_keygen,
0, /* sign_init */
pkey_sm2_sign,
0, /* verify_init */