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Fix bugs of evp/sm2

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This commit is contained in:
Zhi Guan
2018-03-13 12:41:46 +08:00
parent 4b825edf3c
commit e124d150fa
4 changed files with 44 additions and 25 deletions
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22
crypto/evp/p_enc.c
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@@ -89,10 +89,23 @@ int EVP_PKEY_encrypt_old(unsigned char *out, const unsigned char *in,
/* hope the caller has prepared enough buffer for `out`
* because this function has no idea of the out length */
if (!(ctx = EVP_PKEY_CTX_new(pkey, NULL))
|| !EVP_PKEY_encrypt_init(ctx)
|| !EVP_PKEY_CTX_set_ec_scheme(ctx, NID_sm_scheme)
|| !EVP_PKEY_CTX_set_ec_encrypt_param(ctx, NID_sm3)
|| !EVP_PKEY_encrypt(ctx, NULL, &size, in, inlen)
|| !EVP_PKEY_encrypt_init(ctx)) {
EVPerr(EVP_F_EVP_PKEY_ENCRYPT_OLD, ERR_R_EVP_LIB);
goto end;
}
if (EVP_PKEY_id(pkey) == EVP_PKEY_EC && EC_GROUP_get_curve_name(
EC_KEY_get0_group(EVP_PKEY_get0_EC_KEY(pkey))) == NID_sm2p256v1) {
# ifdef SM2_DEBUG
fprintf(stderr, "[SM2_DEBUG] %s->EVP_PKEY_CTX_set_ec_scheme\n", __FUNCTION__);
# endif
if (EVP_PKEY_CTX_set_ec_scheme(pkctx, NID_sm_scheme) <= 0
|| EVP_PKEY_CTX_set_ec_encrypt_param(pkctx, NID_sm3) <= 0) {
goto end;
}
}
if (!EVP_PKEY_encrypt(ctx, NULL, &size, in, inlen)
|| !EVP_PKEY_encrypt(ctx, out, &size, in, inlen)) {
EVPerr(EVP_F_EVP_PKEY_ENCRYPT_OLD, ERR_R_EVP_LIB);
goto end;
@@ -105,4 +118,3 @@ end:
EVP_PKEY_CTX_free(ctx);
return ret;
}