4 files changed, 640 insertions, 0 deletions

diff --git a/src/regress/lib/libcrypto/sm2/Makefile b/src/regress/lib/libcrypto/sm2/Makefile
new file mode 100644
index 0000000000..8aa07f7155
--- /dev/null
+++ b/src/regress/lib/libcrypto/sm2/Makefile
@@ -0,0 +1,23 @@
+#       $OpenBSD: Makefile,v 1.1.1.1 2021/08/18 16:06:56 tb Exp $
+
+PROGS +=        sm2crypttest
+PROGS +=        sm2evptest
+PROGS +=        sm2sigtest
+
+LDADD =         ${CRYPTO_INT}
+DPADD =         ${LIBCRYPTO}
+WARNINGS =      Yes
+
+CFLAGS +=       -DLIBRESSL_INTERNAL -Wundef -Werror
+CFLAGS +=       -I${BSDSRCDIR}/lib/libcrypto/sm2
+CFLAGS +=       -I${BSDSRCDIR}/regress/lib/libssl/unit
+
+.for p in ${PROGS}
+REGRESS_TARGETS += run-$p
+run-$p: $p
+        @echo '\n======== $@ ========'
+        ./$p
+.PHONY: run-$p
+.endfor
+
+.include <bsd.regress.mk>
diff --git a/src/regress/lib/libcrypto/sm2/sm2crypttest.c b/src/regress/lib/libcrypto/sm2/sm2crypttest.c
new file mode 100644
index 0000000000..30a03b21c9
--- /dev/null
+++ b/src/regress/lib/libcrypto/sm2/sm2crypttest.c
@@ -0,0 +1,191 @@
+/*      $OpenBSD: sm2crypttest.c,v 1.1.1.1 2021/08/18 16:06:56 tb Exp $ */
+/*
+ * Copyright (c) 2017, 2019 Ribose Inc
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+#include <openssl/bn.h>
+#include <openssl/crypto.h>
+#include <openssl/err.h>
+#include <openssl/rand.h>
+
+#ifdef OPENSSL_NO_SM2
+int main(int argc, char *argv[])
+{
+    printf("No SM2 support\n");
+    return (0);
+}
+#else
+#include <openssl/sm2.h>
+#include "sm2_locl.h"
+
+static EC_GROUP *
+create_EC_group(const char *p_hex, const char *a_hex, const char *b_hex,
+    const char *x_hex, const char *y_hex, const char *order_hex,
+    const char *cof_hex)
+{
+        BIGNUM *p = NULL;
+        BIGNUM *a = NULL;
+        BIGNUM *b = NULL;
+        BIGNUM *g_x = NULL;
+        BIGNUM *g_y = NULL;
+        BIGNUM *order = NULL;
+        BIGNUM *cof = NULL;
+        EC_POINT *generator = NULL;
+        EC_GROUP *group = NULL;
+
+        BN_hex2bn(&p, p_hex);
+        BN_hex2bn(&a, a_hex);
+        BN_hex2bn(&b, b_hex);
+
+        group = EC_GROUP_new_curve_GFp(p, a, b, NULL);
+        BN_free(p);
+        BN_free(a);
+        BN_free(b);
+
+        if (group == NULL)
+                return NULL;
+
+        generator = EC_POINT_new(group);
+        if (generator == NULL)
+                return NULL;
+
+        BN_hex2bn(&g_x, x_hex);
+        BN_hex2bn(&g_y, y_hex);
+
+        if (EC_POINT_set_affine_coordinates(group, generator, g_x, g_y,
+            NULL) == 0)
+                return NULL;
+
+        BN_free(g_x);
+        BN_free(g_y);
+
+        BN_hex2bn(&order, order_hex);
+        BN_hex2bn(&cof, cof_hex);
+
+        if (EC_GROUP_set_generator(group, generator, order, cof) == 0)
+                return NULL;
+
+        EC_POINT_free(generator);
+        BN_free(order);
+        BN_free(cof);
+
+        return group;
+}
+
+static int
+test_sm2(const EC_GROUP *group, const EVP_MD *digest, const char *privkey_hex,
+    const char *message)
+{
+        const size_t msg_len = strlen(message);
+
+        BIGNUM *priv = NULL;
+        EC_KEY *key = NULL;
+        EC_POINT *pt = NULL;
+        size_t ctext_len = 0;
+        uint8_t *ctext = NULL;
+        uint8_t *recovered = NULL;
+        size_t recovered_len = msg_len;
+        int rc = 0;
+
+        BN_hex2bn(&priv, privkey_hex);
+
+        key = EC_KEY_new();
+        EC_KEY_set_group(key, group);
+        EC_KEY_set_private_key(key, priv);
+
+        pt = EC_POINT_new(group);
+        EC_POINT_mul(group, pt, priv, NULL, NULL, NULL);
+
+        EC_KEY_set_public_key(key, pt);
+        BN_free(priv);
+        EC_POINT_free(pt);
+
+        if (!SM2_ciphertext_size(key, digest, msg_len, &ctext_len))
+                goto done;
+        ctext = calloc(1, ctext_len);
+        if (ctext == NULL)
+                goto done;
+
+        rc = SM2_encrypt(key, digest, (const uint8_t *)message, msg_len, ctext, &ctext_len);
+
+        if (rc == 0)
+                goto done;
+
+        recovered = calloc(1, msg_len);
+        if (recovered == NULL)
+                goto done;
+        rc = SM2_decrypt(key, digest, ctext, ctext_len, recovered, &recovered_len);
+
+        if (rc == 0)
+                goto done;
+        if (recovered_len != msg_len)
+                goto done;
+        if (memcmp(recovered, message, msg_len) != 0)
+                goto done;
+
+        rc = 1;
+ done:
+
+        free(ctext);
+        free(recovered);
+        EC_KEY_free(key);
+        return rc;
+}
+
+int
+main(int argc, char **argv)
+{
+        int rc;
+        EC_GROUP *test_group =
+                create_EC_group
+                ("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3",
+                 "787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498",
+                 "63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A",
+                 "421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D",
+                 "0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2",
+                 "8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7",
+                 "1");
+
+        if (test_group == NULL)
+                return 1;
+
+        rc = test_sm2(test_group, EVP_sm3(),
+            "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
+            "encryption standard");
+
+        if (rc == 0)
+                return 1;
+
+        /* Same test as above except using SHA-256 instead of SM3 */
+        rc = test_sm2(test_group, EVP_sha256(),
+            "1649AB77A00637BD5E2EFE283FBF353534AA7F7CB89463F208DDBC2920BB0DA0",
+            "encryption standard");
+        if (rc == 0)
+                return 1;
+
+        EC_GROUP_free(test_group);
+
+        printf("SUCCESS\n");
+
+        return 0;
+}
+
+#endif
diff --git a/src/regress/lib/libcrypto/sm2/sm2evptest.c b/src/regress/lib/libcrypto/sm2/sm2evptest.c
new file mode 100644
index 0000000000..93024612f4
--- /dev/null
+++ b/src/regress/lib/libcrypto/sm2/sm2evptest.c
@@ -0,0 +1,256 @@
+/*      $OpenBSD: sm2evptest.c,v 1.1.1.1 2021/08/18 16:06:56 tb Exp $ */
+/*
+ * Copyright (c) 2017, 2019 Ribose Inc
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/ec.h>
+#include <openssl/evp.h>
+#include <openssl/pem.h>
+
+#include "tests.h"
+
+#ifdef OPENSSL_NO_SM2
+int
+main(int argc, char *argv[])
+{
+        printf("No SM2 support\n");
+        return (0);
+}
+#else
+static int
+test_EVP_SM2_verify(void)
+{
+        /* From https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02#appendix-A */
+        const char *pubkey =
+                "-----BEGIN PUBLIC KEY-----\n"
+                "MIIBMzCB7AYHKoZIzj0CATCB4AIBATAsBgcqhkjOPQEBAiEAhULWnkwETxjouSQ1\n"
+                "v2/33kVyg5FcRVF9ci7biwjx38MwRAQgeHlotPoyw/0kF4Quc7v+/y88hItoMdfg\n"
+                "7GUiizk35JgEIGPkxtOyOwyEnPhCQUhL/kj2HVmlsWugbm4S0donxSSaBEEEQh3r\n"
+                "1hti6rZ0ZDTrw8wxXjIiCzut1QvcTE5sFH/t1D0GgFEry7QsB9RzSdIVO3DE5df9\n"
+                "/L+jbqGoWEG55G4JogIhAIVC1p5MBE8Y6LkkNb9v990pdyBjBIVijVrnTufDLnm3\n"
+                "AgEBA0IABArkx3mKoPEZRxvuEYJb5GICu3nipYRElel8BP9N8lSKfAJA+I8c1OFj\n"
+                "Uqc8F7fxbwc1PlOhdtaEqf4Ma7eY6Fc=\n"
+                "-----END PUBLIC KEY-----\n";
+
+        const char *input = "message digest";
+        const char *user_id = "ALICE123@YAHOO.COM";
+
+        const uint8_t signature[] = {
+                0x30, 0x44, 0x02, 0x20,
+                0x40, 0xF1, 0xEC, 0x59, 0xF7, 0x93, 0xD9, 0xF4, 0x9E, 0x09, 0xDC,
+                0xEF, 0x49, 0x13, 0x0D, 0x41, 0x94, 0xF7, 0x9F, 0xB1, 0xEE, 0xD2,
+                0xCA, 0xA5, 0x5B, 0xAC, 0xDB, 0x49, 0xC4, 0xE7, 0x55, 0xD1,
+                0x02, 0x20,
+                0x6F, 0xC6, 0xDA, 0xC3, 0x2C, 0x5D, 0x5C, 0xF1, 0x0C, 0x77, 0xDF,
+                0xB2, 0x0F, 0x7C, 0x2E, 0xB6, 0x67, 0xA4, 0x57, 0x87, 0x2F, 0xB0,
+                0x9E, 0xC5, 0x63, 0x27, 0xA6, 0x7E, 0xC7, 0xDE, 0xEB, 0xE7
+        };
+
+        int rc = 0;
+        BIO *bufio = NULL;
+        EVP_PKEY *pkey = NULL;
+        EVP_MD_CTX *md_ctx_verify = NULL;
+        EVP_PKEY_CTX *verify_ctx = NULL;
+
+        bufio = BIO_new_mem_buf(pubkey, strlen(pubkey));
+        CHECK_GOTO(bufio != NULL);
+
+        pkey = PEM_read_bio_PUBKEY(bufio, NULL, NULL, NULL);
+        CHECK_GOTO(pkey != NULL);
+
+        CHECK_GOTO(EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2));
+
+        md_ctx_verify = EVP_MD_CTX_new();
+        CHECK_GOTO(md_ctx_verify != NULL);
+
+        CHECK_GOTO(EVP_DigestVerifyInit(md_ctx_verify, &verify_ctx, EVP_sm3(), NULL, pkey));
+
+        CHECK_GOTO(EVP_PKEY_CTX_set_sm2_uid(verify_ctx, user_id, strlen(user_id)) > 0);
+
+        CHECK_GOTO(EVP_PKEY_CTX_hash_sm2_uid(verify_ctx) > 0);
+
+        CHECK_GOTO(EVP_DigestVerifyUpdate(md_ctx_verify, input, strlen(input)));
+
+        CHECK_GOTO(EVP_DigestVerifyFinal(md_ctx_verify, signature, sizeof(signature)));
+
+        rc = 1;
+ err:
+        BIO_free(bufio);
+        EVP_PKEY_free(pkey);
+        EVP_MD_CTX_free(md_ctx_verify);
+        return rc;
+}
+
+static int
+test_EVP_SM2(void)
+{
+        int ret = 0;
+        EVP_PKEY *pkey = NULL;
+        EVP_PKEY *params = NULL;
+        EVP_PKEY_CTX *pctx = NULL;
+        EVP_PKEY_CTX *sign_ctx = NULL;
+        EVP_PKEY_CTX *verify_ctx = NULL;
+        EVP_PKEY_CTX *kctx = NULL;
+        size_t sig_len = 0;
+        unsigned char *sig = NULL;
+        EVP_MD_CTX *md_ctx = NULL;
+        EVP_MD_CTX *md_ctx_verify = NULL;
+        EVP_PKEY_CTX *cctx = NULL;
+        int useid;
+        const char *uid_str = "nobody@example.com";
+        uint8_t uid_buf[32] = {0};
+        size_t uid_len = 0;
+
+        uint8_t ciphertext[128];
+        size_t ctext_len = sizeof(ciphertext);
+
+        uint8_t plaintext[8];
+        size_t ptext_len = sizeof(plaintext);
+
+        uint8_t kMsg[4] = {1, 2, 3, 4};
+
+        pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_EC, NULL);
+        CHECK_GOTO(pctx != NULL);
+
+        CHECK_GOTO(EVP_PKEY_paramgen_init(pctx) == 1);
+
+        CHECK_GOTO(EVP_PKEY_CTX_set_ec_paramgen_curve_nid(pctx, NID_sm2));
+
+        CHECK_GOTO(EVP_PKEY_paramgen(pctx, &params));
+
+        kctx = EVP_PKEY_CTX_new(params, NULL);
+        CHECK_GOTO(kctx != NULL);
+
+        CHECK_GOTO(EVP_PKEY_keygen_init(kctx));
+
+        CHECK_GOTO(EVP_PKEY_keygen(kctx, &pkey));
+
+        CHECK_GOTO(EVP_PKEY_set_alias_type(pkey, EVP_PKEY_SM2));
+
+        md_ctx = EVP_MD_CTX_new();
+        CHECK_GOTO(md_ctx != NULL);
+
+        md_ctx_verify = EVP_MD_CTX_new();
+        CHECK_GOTO(md_ctx_verify != NULL);
+
+        for (useid = 0; useid <= 1; ++useid) {
+                CHECK_GOTO(EVP_DigestSignInit(md_ctx, &sign_ctx, EVP_sm3(), NULL, pkey));
+
+                if (useid) {
+                        CHECK_GOTO(EVP_PKEY_CTX_set_sm2_uid(sign_ctx, uid_str, strlen(uid_str)) > 0);
+
+                        CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid_len(sign_ctx, &uid_len) > 0);
+
+                        CHECK_GOTO(uid_len == strlen(uid_str));
+
+                        CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid(sign_ctx, uid_buf) > 0);
+
+                        CHECK_GOTO(memcmp(uid_buf, uid_str, uid_len) == 0);
+
+                        CHECK_GOTO(EVP_PKEY_CTX_hash_sm2_uid(sign_ctx) > 0);
+                }
+
+                CHECK_GOTO(EVP_DigestSignUpdate(md_ctx, kMsg, sizeof(kMsg)));
+
+                /* Determine the size of the signature. */
+                CHECK_GOTO(EVP_DigestSignFinal(md_ctx, NULL, &sig_len));
+
+                CHECK_GOTO(sig_len == (size_t) EVP_PKEY_size(pkey));
+
+                sig = malloc(sig_len);
+                CHECK_GOTO(sig != NULL);
+
+                CHECK_GOTO(EVP_DigestSignFinal(md_ctx, sig, &sig_len));
+
+                /* Ensure that the signature round-trips. */
+
+                CHECK_GOTO(EVP_DigestVerifyInit(md_ctx_verify, &verify_ctx, EVP_sm3(), NULL, pkey));
+
+                if (useid) {
+                        CHECK_GOTO(EVP_PKEY_CTX_set_sm2_uid(verify_ctx, uid_str, strlen(uid_str)) > 0);
+
+                        CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid_len(verify_ctx, &uid_len) > 0);
+
+                        CHECK_GOTO(uid_len == strlen(uid_str));
+
+                        CHECK_GOTO(EVP_PKEY_CTX_get_sm2_uid(verify_ctx, uid_buf) > 0);
+
+                        CHECK_GOTO(memcmp(uid_buf, uid_str, uid_len) == 0);
+
+                        CHECK_GOTO(EVP_PKEY_CTX_hash_sm2_uid(verify_ctx) > 0);
+                }
+
+                CHECK_GOTO(EVP_DigestVerifyUpdate(md_ctx_verify, kMsg, sizeof(kMsg)));
+
+                CHECK_GOTO(EVP_DigestVerifyFinal(md_ctx_verify, sig, sig_len));
+
+                free(sig);
+                sig = NULL;
+        }
+
+        /* now check encryption/decryption */
+
+        cctx = EVP_PKEY_CTX_new(pkey, NULL);
+        CHECK_GOTO(cctx != NULL);
+
+        CHECK_GOTO(EVP_PKEY_encrypt_init(cctx));
+
+        CHECK_GOTO(EVP_PKEY_encrypt(cctx, ciphertext, &ctext_len, kMsg, sizeof(kMsg)));
+
+        CHECK_GOTO(EVP_PKEY_decrypt_init(cctx));
+
+        CHECK_GOTO(EVP_PKEY_decrypt(cctx, plaintext, &ptext_len, ciphertext, ctext_len));
+
+        CHECK_GOTO(ptext_len == sizeof(kMsg));
+
+        CHECK_GOTO(memcmp(plaintext, kMsg, sizeof(kMsg)) == 0);
+
+        ret = 1;
+ err:
+        EVP_PKEY_free(params);
+        EVP_MD_CTX_free(md_ctx);
+        EVP_MD_CTX_free(md_ctx_verify);
+        EVP_PKEY_CTX_free(pctx);
+        EVP_PKEY_CTX_free(kctx);
+        EVP_PKEY_CTX_free(cctx);
+        EVP_PKEY_free(pkey);
+        free(sig);
+        return ret;
+}
+
+int
+main(int argc, char *argv[])
+{
+        if (!test_EVP_SM2()) {
+                fprintf(stderr, "test_EVP_SM2() failed.\n");
+                fflush(stderr);
+                return 1;
+        }
+        if (!test_EVP_SM2_verify()) {
+                fprintf(stderr, "test_EVP_SM2_verify() failed.\n");
+                fflush(stderr);
+                return 1;
+        }
+
+        printf("SUCCESS\n");
+
+        return 0;
+}
+
+#endif
diff --git a/src/regress/lib/libcrypto/sm2/sm2sigtest.c b/src/regress/lib/libcrypto/sm2/sm2sigtest.c
new file mode 100644
index 0000000000..bd156799b8
--- /dev/null
+++ b/src/regress/lib/libcrypto/sm2/sm2sigtest.c
@@ -0,0 +1,170 @@
+/*      $OpenBSD: sm2sigtest.c,v 1.1.1.1 2021/08/18 16:06:56 tb Exp $ */
+/*
+ * Copyright (c) 2017, 2019 Ribose Inc
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+#include <openssl/bn.h>
+#include <openssl/crypto.h>
+#include <openssl/err.h>
+#include <openssl/rand.h>
+
+#ifdef OPENSSL_NO_SM2
+int
+main(int argc, char *argv[])
+{
+    printf("No SM2 support\n");
+    return (0);
+}
+#else
+#include <openssl/sm2.h>
+#include "sm2_locl.h"
+
+static EC_GROUP *
+create_EC_group(const char *p_hex, const char *a_hex, const char *b_hex,
+    const char *x_hex, const char *y_hex, const char *order_hex,
+    const char *cof_hex)
+{
+        BIGNUM *p = NULL;
+        BIGNUM *a = NULL;
+        BIGNUM *b = NULL;
+        BIGNUM *g_x = NULL;
+        BIGNUM *g_y = NULL;
+        BIGNUM *order = NULL;
+        BIGNUM *cof = NULL;
+        EC_POINT *generator = NULL;
+        EC_GROUP *group = NULL;
+
+        BN_hex2bn(&p, p_hex);
+        BN_hex2bn(&a, a_hex);
+        BN_hex2bn(&b, b_hex);
+
+        group = EC_GROUP_new_curve_GFp(p, a, b, NULL);
+        BN_free(p);
+        BN_free(a);
+        BN_free(b);
+
+        if (group == NULL)
+                return NULL;
+
+        generator = EC_POINT_new(group);
+        if (generator == NULL)
+                return NULL;
+
+        BN_hex2bn(&g_x, x_hex);
+        BN_hex2bn(&g_y, y_hex);
+
+        if (EC_POINT_set_affine_coordinates(group, generator, g_x, g_y,
+            NULL) == 0)
+                return NULL;
+
+        BN_free(g_x);
+        BN_free(g_y);
+
+        BN_hex2bn(&order, order_hex);
+        BN_hex2bn(&cof, cof_hex);
+
+        if (EC_GROUP_set_generator(group, generator, order, cof) == 0)
+                return NULL;
+
+        EC_POINT_free(generator);
+        BN_free(order);
+        BN_free(cof);
+
+        return group;
+}
+
+
+static int
+test_sm2(const EC_GROUP *group, const char *userid, const char *privkey_hex,
+    const char *message)
+{
+        const size_t msg_len = strlen(message);
+        int ok = -1;
+        BIGNUM *priv = NULL;
+        EC_POINT *pt = NULL;
+        EC_KEY *key = NULL;
+        ECDSA_SIG *sig = NULL;
+        const BIGNUM *sig_r = NULL;
+        const BIGNUM *sig_s = NULL;
+
+        BN_hex2bn(&priv, privkey_hex);
+
+        key = EC_KEY_new();
+        EC_KEY_set_group(key, group);
+        EC_KEY_set_private_key(key, priv);
+
+        pt = EC_POINT_new(group);
+        EC_POINT_mul(group, pt, priv, NULL, NULL, NULL);
+        EC_KEY_set_public_key(key, pt);
+
+        sig = sm2_do_sign(key, EVP_sm3(), userid, strlen(userid),
+            (const uint8_t *)message, msg_len);
+
+        if (sig == NULL)
+                return 0;
+
+        ECDSA_SIG_get0(sig, &sig_r, &sig_s);
+
+        ok = sm2_do_verify(key, EVP_sm3(), sig, userid, strlen(userid),
+            (const uint8_t *)message, msg_len);
+
+        ECDSA_SIG_free(sig);
+        EC_POINT_free(pt);
+        EC_KEY_free(key);
+        BN_free(priv);
+
+        return ok;
+}
+
+int
+main(int argc, char **argv)
+{
+        int rc = 0;
+        /* From draft-shen-sm2-ecdsa-02 */
+        EC_GROUP *test_group =
+                create_EC_group
+                ("8542D69E4C044F18E8B92435BF6FF7DE457283915C45517D722EDB8B08F1DFC3",
+                 "787968B4FA32C3FD2417842E73BBFEFF2F3C848B6831D7E0EC65228B3937E498",
+                 "63E4C6D3B23B0C849CF84241484BFE48F61D59A5B16BA06E6E12D1DA27C5249A",
+                 "421DEBD61B62EAB6746434EBC3CC315E32220B3BADD50BDC4C4E6C147FEDD43D",
+                 "0680512BCBB42C07D47349D2153B70C4E5D7FDFCBFA36EA1A85841B9E46E09A2",
+                 "8542D69E4C044F18E8B92435BF6FF7DD297720630485628D5AE74EE7C32E79B7",
+                 "1");
+
+        if (test_group == NULL)
+                return 1;
+
+        rc = test_sm2(test_group, "ALICE123@YAHOO.COM",
+            "128B2FA8BD433C6C068C8D803DFF79792A519A55171B1B650C23661D15897263",
+            "message digest");
+
+        EC_GROUP_free(test_group);
+
+        if (rc <= 0)
+                return 1;
+
+
+        printf("SUCCESS\n");
+
+        return 0;
+}
+
+#endif