257 lines
6.8 KiB
C
257 lines
6.8 KiB
C
/* $OpenBSD: sm2evptest.c,v 1.1.1.1 2021/08/18 16:06:56 tb Exp $ */
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/*
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* Copyright (c) 2017, 2019 Ribose Inc
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/ec.h>
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#include <openssl/evp.h>
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#include <openssl/pem.h>
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#include "tests.h"
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#ifdef OPENSSL_NO_SM2
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int
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main(int argc, char *argv[])
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{
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printf("No SM2 support\n");
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return (0);
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}
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#else
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static int
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test_EVP_SM2_verify(void)
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{
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/* From https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02#appendix-A */
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const char *pubkey =
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"-----BEGIN PUBLIC KEY-----\n"
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"MIIBMzCB7AYHKoZIzj0CATCB4AIBATAsBgcqhkjOPQEBAiEAhULWnkwETxjouSQ1\n"
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"v2/33kVyg5FcRVF9ci7biwjx38MwRAQgeHlotPoyw/0kF4Quc7v+/y88hItoMdfg\n"
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"7GUiizk35JgEIGPkxtOyOwyEnPhCQUhL/kj2HVmlsWugbm4S0donxSSaBEEEQh3r\n"
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"1hti6rZ0ZDTrw8wxXjIiCzut1QvcTE5sFH/t1D0GgFEry7QsB9RzSdIVO3DE5df9\n"
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"/L+jbqGoWEG55G4JogIhAIVC1p5MBE8Y6LkkNb9v990pdyBjBIVijVrnTufDLnm3\n"
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"AgEBA0IABArkx3mKoPEZRxvuEYJb5GICu3nipYRElel8BP9N8lSKfAJA+I8c1OFj\n"
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"Uqc8F7fxbwc1PlOhdtaEqf4Ma7eY6Fc=\n"
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"-----END PUBLIC KEY-----\n";
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const char *input = "message digest";
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const char *user_id = "ALICE123@YAHOO.COM";
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const uint8_t signature[] = {
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0x30, 0x44, 0x02, 0x20,
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0x40, 0xF1, 0xEC, 0x59, 0xF7, 0x93, 0xD9, 0xF4, 0x9E, 0x09, 0xDC,
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0xEF, 0x49, 0x13, 0x0D, 0x41, 0x94, 0xF7, 0x9F, 0xB1, 0xEE, 0xD2,
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0xCA, 0xA5, 0x5B, 0xAC, 0xDB, 0x49, 0xC4, 0xE7, 0x55, 0xD1,
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0x02, 0x20,
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0x6F, 0xC6, 0xDA, 0xC3, 0x2C, 0x5D, 0x5C, 0xF1, 0x0C, 0x77, 0xDF,
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0xB2, 0x0F, 0x7C, 0x2E, 0xB6, 0x67, 0xA4, 0x57, 0x87, 0x2F, 0xB0,
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0x9E, 0xC5, 0x63, 0x27, 0xA6, 0x7E, 0xC7, 0xDE, 0xEB, 0xE7
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};
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int rc = 0;
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BIO *bufio = NULL;
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EVP_PKEY *pkey = NULL;
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EVP_MD_CTX *md_ctx_verify = NULL;
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EVP_PKEY_CTX *verify_ctx = NULL;
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bufio = BIO_new_mem_buf(pubkey, strlen(pubkey));
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CHECK_GOTO(bufio != NULL);
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pkey = PEM_read_bio_PUBKEY(bufio, NULL, NULL, NULL);
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CHECK_GOTO(pkey != NULL);
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CHECK_GOTO(EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2));
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md_ctx_verify = EVP_MD_CTX_new();
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CHECK_GOTO(md_ctx_verify != NULL);
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CHECK_GOTO(EVP_DigestVerifyInit(md_ctx_verify, &verify_ctx, EVP_sm3(), NULL, pkey));
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CHECK_GOTO(EVP_PKEY_CTX_set_sm2_uid(verify_ctx, user_id, strlen(user_id)) > 0);
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CHECK_GOTO(EVP_PKEY_CTX_hash_sm2_uid(verify_ctx) > 0);
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CHECK_GOTO(EVP_DigestVerifyUpdate(md_ctx_verify, input, strlen(input)));
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CHECK_GOTO(EVP_DigestVerifyFinal(md_ctx_verify, signature, sizeof(signature)));
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rc = 1;
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err:
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BIO_free(bufio);
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EVP_PKEY_free(pkey);
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EVP_MD_CTX_free(md_ctx_verify);
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return rc;
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}
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static int
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test_EVP_SM2(void)
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{
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int ret = 0;
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EVP_PKEY *pkey = NULL;
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EVP_PKEY *params = NULL;
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EVP_PKEY_CTX *pctx = NULL;
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EVP_PKEY_CTX *sign_ctx = NULL;
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EVP_PKEY_CTX *verify_ctx = NULL;
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EVP_PKEY_CTX *kctx = NULL;
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size_t sig_len = 0;
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unsigned char *sig = NULL;
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EVP_MD_CTX *md_ctx = NULL;
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EVP_MD_CTX *md_ctx_verify = NULL;
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EVP_PKEY_CTX *cctx = NULL;
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int useid;
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const char *uid_str = "nobody@example.com";
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uint8_t uid_buf[32] = {0};
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size_t uid_len = 0;
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uint8_t ciphertext[128];
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size_t ctext_len = sizeof(ciphertext);
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uint8_t plaintext[8];
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size_t ptext_len = sizeof(plaintext);
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uint8_t kMsg[4] = {1, 2, 3, 4};
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pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_EC, NULL);
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CHECK_GOTO(pctx != NULL);
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CHECK_GOTO(EVP_PKEY_paramgen_init(pctx) == 1);
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CHECK_GOTO(EVP_PKEY_CTX_set_ec_paramgen_curve_nid(pctx, NID_sm2));
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CHECK_GOTO(EVP_PKEY_paramgen(pctx, ¶ms));
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kctx = EVP_PKEY_CTX_new(params, NULL);
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CHECK_GOTO(kctx != NULL);
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CHECK_GOTO(EVP_PKEY_keygen_init(kctx));
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CHECK_GOTO(EVP_PKEY_keygen(kctx, &pkey));
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CHECK_GOTO(EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2));
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md_ctx = EVP_MD_CTX_new();
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CHECK_GOTO(md_ctx != NULL);
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md_ctx_verify = EVP_MD_CTX_new();
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CHECK_GOTO(md_ctx_verify != NULL);
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for (useid = 0; useid <= 1; ++useid) {
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CHECK_GOTO(EVP_DigestSignInit(md_ctx, &sign_ctx, EVP_sm3(), NULL, pkey));
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if (useid) {
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CHECK_GOTO(EVP_PKEY_CTX_set_sm2_uid(sign_ctx, uid_str, strlen(uid_str)) > 0);
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CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid_len(sign_ctx, &uid_len) > 0);
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CHECK_GOTO(uid_len == strlen(uid_str));
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CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid(sign_ctx, uid_buf) > 0);
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CHECK_GOTO(memcmp(uid_buf, uid_str, uid_len) == 0);
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CHECK_GOTO(EVP_PKEY_CTX_hash_sm2_uid(sign_ctx) > 0);
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}
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CHECK_GOTO(EVP_DigestSignUpdate(md_ctx, kMsg, sizeof(kMsg)));
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/* Determine the size of the signature. */
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CHECK_GOTO(EVP_DigestSignFinal(md_ctx, NULL, &sig_len));
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CHECK_GOTO(sig_len == (size_t) EVP_PKEY_size(pkey));
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sig = malloc(sig_len);
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CHECK_GOTO(sig != NULL);
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CHECK_GOTO(EVP_DigestSignFinal(md_ctx, sig, &sig_len));
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/* Ensure that the signature round-trips. */
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CHECK_GOTO(EVP_DigestVerifyInit(md_ctx_verify, &verify_ctx, EVP_sm3(), NULL, pkey));
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if (useid) {
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CHECK_GOTO(EVP_PKEY_CTX_set_sm2_uid(verify_ctx, uid_str, strlen(uid_str)) > 0);
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CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid_len(verify_ctx, &uid_len) > 0);
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CHECK_GOTO(uid_len == strlen(uid_str));
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CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid(verify_ctx, uid_buf) > 0);
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CHECK_GOTO(memcmp(uid_buf, uid_str, uid_len) == 0);
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CHECK_GOTO(EVP_PKEY_CTX_hash_sm2_uid(verify_ctx) > 0);
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}
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CHECK_GOTO(EVP_DigestVerifyUpdate(md_ctx_verify, kMsg, sizeof(kMsg)));
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CHECK_GOTO(EVP_DigestVerifyFinal(md_ctx_verify, sig, sig_len));
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free(sig);
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sig = NULL;
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}
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/* now check encryption/decryption */
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cctx = EVP_PKEY_CTX_new(pkey, NULL);
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CHECK_GOTO(cctx != NULL);
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CHECK_GOTO(EVP_PKEY_encrypt_init(cctx));
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CHECK_GOTO(EVP_PKEY_encrypt(cctx, ciphertext, &ctext_len, kMsg, sizeof(kMsg)));
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CHECK_GOTO(EVP_PKEY_decrypt_init(cctx));
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CHECK_GOTO(EVP_PKEY_decrypt(cctx, plaintext, &ptext_len, ciphertext, ctext_len));
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CHECK_GOTO(ptext_len == sizeof(kMsg));
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CHECK_GOTO(memcmp(plaintext, kMsg, sizeof(kMsg)) == 0);
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ret = 1;
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err:
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EVP_PKEY_free(params);
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EVP_MD_CTX_free(md_ctx);
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EVP_MD_CTX_free(md_ctx_verify);
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EVP_PKEY_CTX_free(pctx);
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EVP_PKEY_CTX_free(kctx);
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EVP_PKEY_CTX_free(cctx);
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EVP_PKEY_free(pkey);
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free(sig);
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return ret;
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}
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int
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main(int argc, char *argv[])
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{
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if (!test_EVP_SM2()) {
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fprintf(stderr, "test_EVP_SM2() failed.\n");
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fflush(stderr);
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return 1;
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}
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if (!test_EVP_SM2_verify()) {
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fprintf(stderr, "test_EVP_SM2_verify() failed.\n");
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fflush(stderr);
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return 1;
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}
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printf("SUCCESS\n");
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return 0;
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}
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#endif
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