Adding in curl and openssl repos

openssl-3.4.2/crypto/sm2/build.info

@@ -0,0 +1,5 @@
+LIBS=../../libcrypto
+SOURCE[../../libcrypto]=\
+        sm2_sign.c sm2_crypt.c sm2_err.c sm2_key.c
+
+

openssl-3.4.2/crypto/sm2/libcrypto-lib-sm2_crypt.d

@@ -0,0 +1,17 @@
+crypto/sm2/libcrypto-lib-sm2_crypt.o: crypto/sm2/sm2_crypt.c \
+ include/internal/deprecated.h include/openssl/configuration.h \
+ include/openssl/macros.h include/openssl/opensslconf.h \
+ include/openssl/opensslv.h include/crypto/sm2.h include/openssl/ec.h \
+ include/openssl/types.h include/openssl/e_os2.h \
+ include/openssl/safestack.h include/openssl/stack.h \
+ include/openssl/asn1.h include/openssl/bio.h include/openssl/crypto.h \
+ include/openssl/cryptoerr.h include/openssl/symhacks.h \
+ include/openssl/cryptoerr_legacy.h include/openssl/core.h \
+ include/openssl/bioerr.h include/openssl/asn1err.h include/openssl/bn.h \
+ include/openssl/bnerr.h include/openssl/ecerr.h include/openssl/params.h \
+ include/crypto/types.h include/crypto/sm2err.h include/crypto/ec.h \
+ include/openssl/evp.h include/openssl/core_dispatch.h \
+ include/openssl/indicator.h include/openssl/evperr.h \
+ include/openssl/objects.h include/openssl/obj_mac.h \
+ include/openssl/objectserr.h include/openssl/err.h \
+ include/openssl/lhash.h include/openssl/asn1t.h

openssl-3.4.2/crypto/sm2/libcrypto-lib-sm2_err.d

@@ -0,0 +1,9 @@
+crypto/sm2/libcrypto-lib-sm2_err.o: crypto/sm2/sm2_err.c \
+ include/openssl/err.h include/openssl/macros.h \
+ include/openssl/opensslconf.h include/openssl/configuration.h \
+ include/openssl/opensslv.h include/openssl/e_os2.h \
+ include/openssl/types.h include/openssl/safestack.h \
+ include/openssl/stack.h include/openssl/bio.h include/openssl/crypto.h \
+ include/openssl/cryptoerr.h include/openssl/symhacks.h \
+ include/openssl/cryptoerr_legacy.h include/openssl/core.h \
+ include/openssl/bioerr.h include/openssl/lhash.h include/crypto/sm2err.h

openssl-3.4.2/crypto/sm2/libcrypto-lib-sm2_key.d

@@ -0,0 +1,12 @@
+crypto/sm2/libcrypto-lib-sm2_key.o: crypto/sm2/sm2_key.c \
+ include/internal/deprecated.h include/openssl/configuration.h \
+ include/openssl/macros.h include/openssl/opensslconf.h \
+ include/openssl/opensslv.h include/openssl/err.h include/openssl/e_os2.h \
+ include/openssl/types.h include/openssl/safestack.h \
+ include/openssl/stack.h include/openssl/bio.h include/openssl/crypto.h \
+ include/openssl/cryptoerr.h include/openssl/symhacks.h \
+ include/openssl/cryptoerr_legacy.h include/openssl/core.h \
+ include/openssl/bioerr.h include/openssl/lhash.h include/crypto/sm2err.h \
+ include/crypto/sm2.h include/openssl/ec.h include/openssl/asn1.h \
+ include/openssl/asn1err.h include/openssl/bn.h include/openssl/bnerr.h \
+ include/openssl/ecerr.h include/openssl/params.h include/crypto/types.h

openssl-3.4.2/crypto/sm2/libcrypto-lib-sm2_sign.d

@@ -0,0 +1,17 @@
+crypto/sm2/libcrypto-lib-sm2_sign.o: crypto/sm2/sm2_sign.c \
+ include/internal/deprecated.h include/openssl/configuration.h \
+ include/openssl/macros.h include/openssl/opensslconf.h \
+ include/openssl/opensslv.h include/crypto/sm2.h include/openssl/ec.h \
+ include/openssl/types.h include/openssl/e_os2.h \
+ include/openssl/safestack.h include/openssl/stack.h \
+ include/openssl/asn1.h include/openssl/bio.h include/openssl/crypto.h \
+ include/openssl/cryptoerr.h include/openssl/symhacks.h \
+ include/openssl/cryptoerr_legacy.h include/openssl/core.h \
+ include/openssl/bioerr.h include/openssl/asn1err.h include/openssl/bn.h \
+ include/openssl/bnerr.h include/openssl/ecerr.h include/openssl/params.h \
+ include/crypto/types.h include/crypto/sm2err.h include/crypto/ec.h \
+ include/openssl/evp.h include/openssl/core_dispatch.h \
+ include/openssl/indicator.h include/openssl/evperr.h \
+ include/openssl/objects.h include/openssl/obj_mac.h \
+ include/openssl/objectserr.h include/internal/numbers.h \
+ include/openssl/err.h include/openssl/lhash.h

openssl-3.4.2/crypto/sm2/sm2_crypt.c

@@ -0,0 +1,414 @@
+/*
+ * Copyright 2017-2024 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2017 Ribose Inc. All Rights Reserved.
+ * Ported from Ribose contributions from Botan.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * ECDSA low level APIs are deprecated for public use, but still ok for
+ * internal use.
+ */
+#include "internal/deprecated.h"
+
+#include "crypto/sm2.h"
+#include "crypto/sm2err.h"
+#include "crypto/ec.h" /* ossl_ecdh_kdf_X9_63() */
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/bn.h>
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <string.h>
+
+typedef struct SM2_Ciphertext_st SM2_Ciphertext;
+DECLARE_ASN1_FUNCTIONS(SM2_Ciphertext)
+
+struct SM2_Ciphertext_st {
+    BIGNUM *C1x;
+    BIGNUM *C1y;
+    ASN1_OCTET_STRING *C3;
+    ASN1_OCTET_STRING *C2;
+};
+
+ASN1_SEQUENCE(SM2_Ciphertext) = {
+    ASN1_SIMPLE(SM2_Ciphertext, C1x, BIGNUM),
+    ASN1_SIMPLE(SM2_Ciphertext, C1y, BIGNUM),
+    ASN1_SIMPLE(SM2_Ciphertext, C3, ASN1_OCTET_STRING),
+    ASN1_SIMPLE(SM2_Ciphertext, C2, ASN1_OCTET_STRING),
+} ASN1_SEQUENCE_END(SM2_Ciphertext)
+
+IMPLEMENT_ASN1_FUNCTIONS(SM2_Ciphertext)
+
+static size_t ec_field_size(const EC_GROUP *group)
+{
+    const BIGNUM *p = EC_GROUP_get0_field(group);
+
+    if (p == NULL)
+        return 0;
+
+    return BN_num_bytes(p);
+}
+
+static int is_all_zeros(const unsigned char *msg, size_t msglen)
+{
+    unsigned char re = 0;
+    size_t i;
+
+    for (i = 0; i < msglen; i++) {
+        re |= msg[i];
+    }
+
+    return re == 0 ? 1 : 0;
+}
+
+int ossl_sm2_plaintext_size(const unsigned char *ct, size_t ct_size,
+                            size_t *pt_size)
+{
+    struct SM2_Ciphertext_st *sm2_ctext = NULL;
+
+    sm2_ctext = d2i_SM2_Ciphertext(NULL, &ct, ct_size);
+
+    if (sm2_ctext == NULL) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_ENCODING);
+        return 0;
+    }
+
+    *pt_size = sm2_ctext->C2->length;
+    SM2_Ciphertext_free(sm2_ctext);
+
+    return 1;
+}
+
+int ossl_sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest,
+                             size_t msg_len, size_t *ct_size)
+{
+    const size_t field_size = ec_field_size(EC_KEY_get0_group(key));
+    const int md_size = EVP_MD_get_size(digest);
+    size_t sz;
+
+    if (field_size == 0 || md_size <= 0)
+        return 0;
+
+    /* Integer and string are simple type; set constructed = 0, means primitive and definite length encoding. */
+    sz = 2 * ASN1_object_size(0, field_size + 1, V_ASN1_INTEGER)
+         + ASN1_object_size(0, md_size, V_ASN1_OCTET_STRING)
+         + ASN1_object_size(0, msg_len, V_ASN1_OCTET_STRING);
+    /* Sequence is structured type; set constructed = 1, means constructed and definite length encoding. */
+    *ct_size = ASN1_object_size(1, sz, V_ASN1_SEQUENCE);
+
+    return 1;
+}
+
+int ossl_sm2_encrypt(const EC_KEY *key,
+                     const EVP_MD *digest,
+                     const uint8_t *msg, size_t msg_len,
+                     uint8_t *ciphertext_buf, size_t *ciphertext_len)
+{
+    int rc = 0, ciphertext_leni;
+    size_t i;
+    BN_CTX *ctx = NULL;
+    BIGNUM *k = NULL;
+    BIGNUM *x1 = NULL;
+    BIGNUM *y1 = NULL;
+    BIGNUM *x2 = NULL;
+    BIGNUM *y2 = NULL;
+    EVP_MD_CTX *hash = EVP_MD_CTX_new();
+    struct SM2_Ciphertext_st ctext_struct;
+    const EC_GROUP *group = EC_KEY_get0_group(key);
+    const BIGNUM *order = EC_GROUP_get0_order(group);
+    const EC_POINT *P = EC_KEY_get0_public_key(key);
+    EC_POINT *kG = NULL;
+    EC_POINT *kP = NULL;
+    uint8_t *msg_mask = NULL;
+    uint8_t *x2y2 = NULL;
+    uint8_t *C3 = NULL;
+    size_t field_size;
+    const int C3_size = EVP_MD_get_size(digest);
+    EVP_MD *fetched_digest = NULL;
+    OSSL_LIB_CTX *libctx = ossl_ec_key_get_libctx(key);
+    const char *propq = ossl_ec_key_get0_propq(key);
+
+    /* NULL these before any "goto done" */
+    ctext_struct.C2 = NULL;
+    ctext_struct.C3 = NULL;
+
+    if (hash == NULL || C3_size <= 0) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    field_size = ec_field_size(group);
+    if (field_size == 0) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    kG = EC_POINT_new(group);
+    kP = EC_POINT_new(group);
+    if (kG == NULL || kP == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+    ctx = BN_CTX_new_ex(libctx);
+    if (ctx == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    BN_CTX_start(ctx);
+    k = BN_CTX_get(ctx);
+    x1 = BN_CTX_get(ctx);
+    x2 = BN_CTX_get(ctx);
+    y1 = BN_CTX_get(ctx);
+    y2 = BN_CTX_get(ctx);
+
+    if (y2 == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    x2y2 = OPENSSL_zalloc(2 * field_size);
+    C3 = OPENSSL_zalloc(C3_size);
+
+    if (x2y2 == NULL || C3 == NULL)
+        goto done;
+
+    memset(ciphertext_buf, 0, *ciphertext_len);
+
+    msg_mask = OPENSSL_zalloc(msg_len);
+    if (msg_mask == NULL)
+       goto done;
+
+again:
+    if (!BN_priv_rand_range_ex(k, order, 0, ctx)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    if (!EC_POINT_mul(group, kG, k, NULL, NULL, ctx)
+            || !EC_POINT_get_affine_coordinates(group, kG, x1, y1, ctx)
+            || !EC_POINT_mul(group, kP, NULL, P, k, ctx)
+            || !EC_POINT_get_affine_coordinates(group, kP, x2, y2, ctx)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+
+    if (BN_bn2binpad(x2, x2y2, field_size) < 0
+            || BN_bn2binpad(y2, x2y2 + field_size, field_size) < 0) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    /* X9.63 with no salt happens to match the KDF used in SM2 */
+    if (!ossl_ecdh_kdf_X9_63(msg_mask, msg_len, x2y2, 2 * field_size, NULL, 0,
+                             digest, libctx, propq)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    if (is_all_zeros(msg_mask, msg_len)) {
+        memset(x2y2, 0, 2 * field_size);
+        goto again;
+    }
+
+    for (i = 0; i != msg_len; ++i)
+        msg_mask[i] ^= msg[i];
+
+    fetched_digest = EVP_MD_fetch(libctx, EVP_MD_get0_name(digest), propq);
+    if (fetched_digest == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+    if (EVP_DigestInit(hash, fetched_digest) == 0
+            || EVP_DigestUpdate(hash, x2y2, field_size) == 0
+            || EVP_DigestUpdate(hash, msg, msg_len) == 0
+            || EVP_DigestUpdate(hash, x2y2 + field_size, field_size) == 0
+            || EVP_DigestFinal(hash, C3, NULL) == 0) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    ctext_struct.C1x = x1;
+    ctext_struct.C1y = y1;
+    ctext_struct.C3 = ASN1_OCTET_STRING_new();
+    ctext_struct.C2 = ASN1_OCTET_STRING_new();
+
+    if (ctext_struct.C3 == NULL || ctext_struct.C2 == NULL) {
+       ERR_raise(ERR_LIB_SM2, ERR_R_ASN1_LIB);
+       goto done;
+    }
+    if (!ASN1_OCTET_STRING_set(ctext_struct.C3, C3, C3_size)
+            || !ASN1_OCTET_STRING_set(ctext_struct.C2, msg_mask, msg_len)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    ciphertext_leni = i2d_SM2_Ciphertext(&ctext_struct, &ciphertext_buf);
+    /* Ensure cast to size_t is safe */
+    if (ciphertext_leni < 0) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+    *ciphertext_len = (size_t)ciphertext_leni;
+
+    rc = 1;
+
+ done:
+    EVP_MD_free(fetched_digest);
+    ASN1_OCTET_STRING_free(ctext_struct.C2);
+    ASN1_OCTET_STRING_free(ctext_struct.C3);
+    OPENSSL_free(msg_mask);
+    OPENSSL_free(x2y2);
+    OPENSSL_free(C3);
+    EVP_MD_CTX_free(hash);
+    BN_CTX_free(ctx);
+    EC_POINT_free(kG);
+    EC_POINT_free(kP);
+    return rc;
+}
+
+int ossl_sm2_decrypt(const EC_KEY *key,
+                     const EVP_MD *digest,
+                     const uint8_t *ciphertext, size_t ciphertext_len,
+                     uint8_t *ptext_buf, size_t *ptext_len)
+{
+    int rc = 0;
+    int i;
+    BN_CTX *ctx = NULL;
+    const EC_GROUP *group = EC_KEY_get0_group(key);
+    EC_POINT *C1 = NULL;
+    struct SM2_Ciphertext_st *sm2_ctext = NULL;
+    BIGNUM *x2 = NULL;
+    BIGNUM *y2 = NULL;
+    uint8_t *x2y2 = NULL;
+    uint8_t *computed_C3 = NULL;
+    const size_t field_size = ec_field_size(group);
+    const int hash_size = EVP_MD_get_size(digest);
+    uint8_t *msg_mask = NULL;
+    const uint8_t *C2 = NULL;
+    const uint8_t *C3 = NULL;
+    int msg_len = 0;
+    EVP_MD_CTX *hash = NULL;
+    OSSL_LIB_CTX *libctx = ossl_ec_key_get_libctx(key);
+    const char *propq = ossl_ec_key_get0_propq(key);
+
+    if (field_size == 0 || hash_size <= 0)
+       goto done;
+
+    memset(ptext_buf, 0xFF, *ptext_len);
+
+    sm2_ctext = d2i_SM2_Ciphertext(NULL, &ciphertext, ciphertext_len);
+
+    if (sm2_ctext == NULL) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_ASN1_ERROR);
+        goto done;
+    }
+
+    if (sm2_ctext->C3->length != hash_size) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_ENCODING);
+        goto done;
+    }
+
+    C2 = sm2_ctext->C2->data;
+    C3 = sm2_ctext->C3->data;
+    msg_len = sm2_ctext->C2->length;
+    if (*ptext_len < (size_t)msg_len) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_BUFFER_TOO_SMALL);
+        goto done;
+    }
+
+    ctx = BN_CTX_new_ex(libctx);
+    if (ctx == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    BN_CTX_start(ctx);
+    x2 = BN_CTX_get(ctx);
+    y2 = BN_CTX_get(ctx);
+
+    if (y2 == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    msg_mask = OPENSSL_zalloc(msg_len);
+    x2y2 = OPENSSL_zalloc(2 * field_size);
+    computed_C3 = OPENSSL_zalloc(hash_size);
+
+    if (msg_mask == NULL || x2y2 == NULL || computed_C3 == NULL)
+        goto done;
+
+    C1 = EC_POINT_new(group);
+    if (C1 == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+
+    if (!EC_POINT_set_affine_coordinates(group, C1, sm2_ctext->C1x,
+                                         sm2_ctext->C1y, ctx)
+            || !EC_POINT_mul(group, C1, NULL, C1, EC_KEY_get0_private_key(key),
+                             ctx)
+            || !EC_POINT_get_affine_coordinates(group, C1, x2, y2, ctx)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+
+    if (BN_bn2binpad(x2, x2y2, field_size) < 0
+            || BN_bn2binpad(y2, x2y2 + field_size, field_size) < 0
+            || !ossl_ecdh_kdf_X9_63(msg_mask, msg_len, x2y2, 2 * field_size,
+                                    NULL, 0, digest, libctx, propq)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    if (is_all_zeros(msg_mask, msg_len)) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_ENCODING);
+        goto done;
+    }
+
+    for (i = 0; i != msg_len; ++i)
+        ptext_buf[i] = C2[i] ^ msg_mask[i];
+
+    hash = EVP_MD_CTX_new();
+    if (hash == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    if (!EVP_DigestInit(hash, digest)
+            || !EVP_DigestUpdate(hash, x2y2, field_size)
+            || !EVP_DigestUpdate(hash, ptext_buf, msg_len)
+            || !EVP_DigestUpdate(hash, x2y2 + field_size, field_size)
+            || !EVP_DigestFinal(hash, computed_C3, NULL)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    if (CRYPTO_memcmp(computed_C3, C3, hash_size) != 0) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_DIGEST);
+        goto done;
+    }
+
+    rc = 1;
+    *ptext_len = msg_len;
+
+ done:
+    if (rc == 0)
+        memset(ptext_buf, 0, *ptext_len);
+
+    OPENSSL_free(msg_mask);
+    OPENSSL_free(x2y2);
+    OPENSSL_free(computed_C3);
+    EC_POINT_free(C1);
+    BN_CTX_free(ctx);
+    SM2_Ciphertext_free(sm2_ctext);
+    EVP_MD_CTX_free(hash);
+
+    return rc;
+}

openssl-3.4.2/crypto/sm2/sm2_err.c

@@ -0,0 +1,50 @@
+/*
+ * Generated by util/mkerr.pl DO NOT EDIT
+ * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/err.h>
+#include "crypto/sm2err.h"
+
+#ifndef OPENSSL_NO_SM2
+
+# ifndef OPENSSL_NO_ERR
+
+static const ERR_STRING_DATA SM2_str_reasons[] = {
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_ASN1_ERROR), "asn1 error"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_BAD_SIGNATURE), "bad signature"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_BUFFER_TOO_SMALL), "buffer too small"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_DIST_ID_TOO_LARGE), "dist id too large"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_ID_NOT_SET), "id not set"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_ID_TOO_LARGE), "id too large"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_CURVE), "invalid curve"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_DIGEST), "invalid digest"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_DIGEST_TYPE),
+    "invalid digest type"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_ENCODING), "invalid encoding"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_FIELD), "invalid field"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_INVALID_PRIVATE_KEY),
+    "invalid private key"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_NO_PARAMETERS_SET), "no parameters set"},
+    {ERR_PACK(ERR_LIB_SM2, 0, SM2_R_USER_ID_TOO_LARGE), "user id too large"},
+    {0, NULL}
+};
+
+# endif
+
+int ossl_err_load_SM2_strings(void)
+{
+# ifndef OPENSSL_NO_ERR
+    if (ERR_reason_error_string(SM2_str_reasons[0].error) == NULL)
+        ERR_load_strings_const(SM2_str_reasons);
+# endif
+    return 1;
+}
+#else
+NON_EMPTY_TRANSLATION_UNIT
+#endif

openssl-3.4.2/crypto/sm2/sm2_key.c

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "internal/deprecated.h" /* to be able to use EC_KEY and EC_GROUP */
+
+#include <openssl/err.h>
+#include "crypto/sm2err.h"
+#include "crypto/sm2.h"
+#include <openssl/ec.h> /* EC_KEY and EC_GROUP functions */
+
+/*
+ * SM2 key generation is implemented within ec_generate_key() in
+ * crypto/ec/ec_key.c
+ */
+
+int ossl_sm2_key_private_check(const EC_KEY *eckey)
+{
+    int ret = 0;
+    BIGNUM *max = NULL;
+    const EC_GROUP *group = NULL;
+    const BIGNUM *priv_key = NULL, *order = NULL;
+
+    if (eckey == NULL
+            || (group = EC_KEY_get0_group(eckey)) == NULL
+            || (priv_key = EC_KEY_get0_private_key(eckey)) == NULL
+            || (order = EC_GROUP_get0_order(group)) == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_PASSED_NULL_PARAMETER);
+        return 0;
+    }
+
+    /* range of SM2 private key is [1, n-1) */
+    max = BN_dup(order);
+    if (max == NULL || !BN_sub_word(max, 1))
+        goto end;
+    if (BN_cmp(priv_key, BN_value_one()) < 0
+        || BN_cmp(priv_key, max) >= 0) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_PRIVATE_KEY);
+        goto end;
+    }
+    ret = 1;
+
+ end:
+    BN_free(max);
+    return ret;
+}

openssl-3.4.2/crypto/sm2/sm2_sign.c

@@ -0,0 +1,536 @@
+/*
+ * Copyright 2017-2024 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2017 Ribose Inc. All Rights Reserved.
+ * Ported from Ribose contributions from Botan.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include "internal/deprecated.h"
+
+#include "crypto/sm2.h"
+#include "crypto/sm2err.h"
+#include "crypto/ec.h" /* ossl_ec_group_do_inverse_ord() */
+#include "internal/numbers.h"
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/bn.h>
+#include <string.h>
+
+int ossl_sm2_compute_z_digest(uint8_t *out,
+                              const EVP_MD *digest,
+                              const uint8_t *id,
+                              const size_t id_len,
+                              const EC_KEY *key)
+{
+    int rc = 0;
+    const EC_GROUP *group = EC_KEY_get0_group(key);
+    const EC_POINT *pubkey = EC_KEY_get0_public_key(key);
+    BN_CTX *ctx = NULL;
+    EVP_MD_CTX *hash = NULL;
+    BIGNUM *p = NULL;
+    BIGNUM *a = NULL;
+    BIGNUM *b = NULL;
+    BIGNUM *xG = NULL;
+    BIGNUM *yG = NULL;
+    BIGNUM *xA = NULL;
+    BIGNUM *yA = NULL;
+    int p_bytes = 0;
+    uint8_t *buf = NULL;
+    uint16_t entl = 0;
+    uint8_t e_byte = 0;
+
+    /* SM2 Signatures require a public key, check for it */
+    if (pubkey == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_PASSED_NULL_PARAMETER);
+        goto done;
+    }
+
+    hash = EVP_MD_CTX_new();
+    if (hash == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+    ctx = BN_CTX_new_ex(ossl_ec_key_get_libctx(key));
+    if (ctx == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    p = BN_CTX_get(ctx);
+    a = BN_CTX_get(ctx);
+    b = BN_CTX_get(ctx);
+    xG = BN_CTX_get(ctx);
+    yG = BN_CTX_get(ctx);
+    xA = BN_CTX_get(ctx);
+    yA = BN_CTX_get(ctx);
+
+    if (yA == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    if (!EVP_DigestInit(hash, digest)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    /* Z = h(ENTL || ID || a || b || xG || yG || xA || yA) */
+
+    if (id_len >= (UINT16_MAX / 8)) {
+        /* too large */
+        ERR_raise(ERR_LIB_SM2, SM2_R_ID_TOO_LARGE);
+        goto done;
+    }
+
+    entl = (uint16_t)(8 * id_len);
+
+    e_byte = entl >> 8;
+    if (!EVP_DigestUpdate(hash, &e_byte, 1)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+    e_byte = entl & 0xFF;
+    if (!EVP_DigestUpdate(hash, &e_byte, 1)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    if (id_len > 0 && !EVP_DigestUpdate(hash, id, id_len)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    if (!EC_GROUP_get_curve(group, p, a, b, ctx)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+
+    p_bytes = BN_num_bytes(p);
+    buf = OPENSSL_zalloc(p_bytes);
+    if (buf == NULL)
+        goto done;
+
+    if (BN_bn2binpad(a, buf, p_bytes) < 0
+            || !EVP_DigestUpdate(hash, buf, p_bytes)
+            || BN_bn2binpad(b, buf, p_bytes) < 0
+            || !EVP_DigestUpdate(hash, buf, p_bytes)
+            || !EC_POINT_get_affine_coordinates(group,
+                                                EC_GROUP_get0_generator(group),
+                                                xG, yG, ctx)
+            || BN_bn2binpad(xG, buf, p_bytes) < 0
+            || !EVP_DigestUpdate(hash, buf, p_bytes)
+            || BN_bn2binpad(yG, buf, p_bytes) < 0
+            || !EVP_DigestUpdate(hash, buf, p_bytes)
+            || !EC_POINT_get_affine_coordinates(group,
+                                                pubkey,
+                                                xA, yA, ctx)
+            || BN_bn2binpad(xA, buf, p_bytes) < 0
+            || !EVP_DigestUpdate(hash, buf, p_bytes)
+            || BN_bn2binpad(yA, buf, p_bytes) < 0
+            || !EVP_DigestUpdate(hash, buf, p_bytes)
+            || !EVP_DigestFinal(hash, out, NULL)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    rc = 1;
+
+ done:
+    OPENSSL_free(buf);
+    BN_CTX_free(ctx);
+    EVP_MD_CTX_free(hash);
+    return rc;
+}
+
+static BIGNUM *sm2_compute_msg_hash(const EVP_MD *digest,
+                                    const EC_KEY *key,
+                                    const uint8_t *id,
+                                    const size_t id_len,
+                                    const uint8_t *msg, size_t msg_len)
+{
+    EVP_MD_CTX *hash = EVP_MD_CTX_new();
+    const int md_size = EVP_MD_get_size(digest);
+    uint8_t *z = NULL;
+    BIGNUM *e = NULL;
+    EVP_MD *fetched_digest = NULL;
+    OSSL_LIB_CTX *libctx = ossl_ec_key_get_libctx(key);
+    const char *propq = ossl_ec_key_get0_propq(key);
+
+    if (md_size <= 0) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_DIGEST);
+        goto done;
+    }
+    if (hash == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    z = OPENSSL_zalloc(md_size);
+    if (z == NULL)
+        goto done;
+
+    fetched_digest = EVP_MD_fetch(libctx, EVP_MD_get0_name(digest), propq);
+    if (fetched_digest == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    if (!ossl_sm2_compute_z_digest(z, fetched_digest, id, id_len, key)) {
+        /* SM2err already called */
+        goto done;
+    }
+
+    if (!EVP_DigestInit(hash, fetched_digest)
+            || !EVP_DigestUpdate(hash, z, md_size)
+            || !EVP_DigestUpdate(hash, msg, msg_len)
+               /* reuse z buffer to hold H(Z || M) */
+            || !EVP_DigestFinal(hash, z, NULL)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EVP_LIB);
+        goto done;
+    }
+
+    e = BN_bin2bn(z, md_size, NULL);
+    if (e == NULL)
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+
+ done:
+    EVP_MD_free(fetched_digest);
+    OPENSSL_free(z);
+    EVP_MD_CTX_free(hash);
+    return e;
+}
+
+static ECDSA_SIG *sm2_sig_gen(const EC_KEY *key, const BIGNUM *e)
+{
+    const BIGNUM *dA = EC_KEY_get0_private_key(key);
+    const EC_GROUP *group = EC_KEY_get0_group(key);
+    const BIGNUM *order = EC_GROUP_get0_order(group);
+    ECDSA_SIG *sig = NULL;
+    EC_POINT *kG = NULL;
+    BN_CTX *ctx = NULL;
+    BIGNUM *k = NULL;
+    BIGNUM *rk = NULL;
+    BIGNUM *r = NULL;
+    BIGNUM *s = NULL;
+    BIGNUM *x1 = NULL;
+    BIGNUM *tmp = NULL;
+    OSSL_LIB_CTX *libctx = ossl_ec_key_get_libctx(key);
+
+    kG = EC_POINT_new(group);
+    if (kG == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+    ctx = BN_CTX_new_ex(libctx);
+    if (ctx == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    BN_CTX_start(ctx);
+    k = BN_CTX_get(ctx);
+    rk = BN_CTX_get(ctx);
+    x1 = BN_CTX_get(ctx);
+    tmp = BN_CTX_get(ctx);
+    if (tmp == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    /*
+     * These values are returned and so should not be allocated out of the
+     * context
+     */
+    r = BN_new();
+    s = BN_new();
+
+    if (r == NULL || s == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    /*
+     * A3: Generate a random number k in [1,n-1] using random number generators;
+     * A4: Compute (x1,y1)=[k]G, and convert the type of data x1 to be integer
+     *     as specified in clause 4.2.8 of GM/T 0003.1-2012;
+     * A5: Compute r=(e+x1) mod n. If r=0 or r+k=n, then go to A3;
+     * A6: Compute s=(1/(1+dA)*(k-r*dA)) mod n. If s=0, then go to A3;
+     * A7: Convert the type of data (r,s) to be bit strings according to the details
+     *     in clause 4.2.2 of GM/T 0003.1-2012. Then the signature of message M is (r,s).
+     */
+    for (;;) {
+        if (!BN_priv_rand_range_ex(k, order, 0, ctx)) {
+            ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+            goto done;
+        }
+
+        if (!EC_POINT_mul(group, kG, k, NULL, NULL, ctx)
+                || !EC_POINT_get_affine_coordinates(group, kG, x1, NULL,
+                                                    ctx)
+                || !BN_mod_add(r, e, x1, order, ctx)) {
+            ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+            goto done;
+        }
+
+        /* try again if r == 0 or r+k == n */
+        if (BN_is_zero(r))
+            continue;
+
+        if (!BN_add(rk, r, k)) {
+            ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+            goto done;
+        }
+
+        if (BN_cmp(rk, order) == 0)
+            continue;
+
+        if (!BN_add(s, dA, BN_value_one())
+                || !ossl_ec_group_do_inverse_ord(group, s, s, ctx)
+                || !BN_mod_mul(tmp, dA, r, order, ctx)
+                || !BN_sub(tmp, k, tmp)
+                || !BN_mod_mul(s, s, tmp, order, ctx)) {
+            ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+            goto done;
+        }
+
+        /* try again if s == 0 */
+        if (BN_is_zero(s))
+            continue;
+
+        sig = ECDSA_SIG_new();
+        if (sig == NULL) {
+            ERR_raise(ERR_LIB_SM2, ERR_R_ECDSA_LIB);
+            goto done;
+        }
+
+         /* takes ownership of r and s */
+        ECDSA_SIG_set0(sig, r, s);
+        break;
+    }
+
+ done:
+    if (sig == NULL) {
+        BN_free(r);
+        BN_free(s);
+    }
+
+    BN_CTX_free(ctx);
+    EC_POINT_free(kG);
+    return sig;
+}
+
+static int sm2_sig_verify(const EC_KEY *key, const ECDSA_SIG *sig,
+                          const BIGNUM *e)
+{
+    int ret = 0;
+    const EC_GROUP *group = EC_KEY_get0_group(key);
+    const BIGNUM *order = EC_GROUP_get0_order(group);
+    BN_CTX *ctx = NULL;
+    EC_POINT *pt = NULL;
+    BIGNUM *t = NULL;
+    BIGNUM *x1 = NULL;
+    const BIGNUM *r = NULL;
+    const BIGNUM *s = NULL;
+    OSSL_LIB_CTX *libctx = ossl_ec_key_get_libctx(key);
+
+    ctx = BN_CTX_new_ex(libctx);
+    if (ctx == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+    BN_CTX_start(ctx);
+    t = BN_CTX_get(ctx);
+    x1 = BN_CTX_get(ctx);
+    if (x1 == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    pt = EC_POINT_new(group);
+    if (pt == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+
+    /*
+     * B1: verify whether r' in [1,n-1], verification failed if not
+     * B2: verify whether s' in [1,n-1], verification failed if not
+     * B3: set M'~=ZA || M'
+     * B4: calculate e'=Hv(M'~)
+     * B5: calculate t = (r' + s') modn, verification failed if t=0
+     * B6: calculate the point (x1', y1')=[s']G + [t]PA
+     * B7: calculate R=(e'+x1') modn, verification pass if yes, otherwise failed
+     */
+
+    ECDSA_SIG_get0(sig, &r, &s);
+
+    if (BN_cmp(r, BN_value_one()) < 0
+            || BN_cmp(s, BN_value_one()) < 0
+            || BN_cmp(order, r) <= 0
+            || BN_cmp(order, s) <= 0) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_BAD_SIGNATURE);
+        goto done;
+    }
+
+    if (!BN_mod_add(t, r, s, order, ctx)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    if (BN_is_zero(t)) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_BAD_SIGNATURE);
+        goto done;
+    }
+
+    if (!EC_POINT_mul(group, pt, s, EC_KEY_get0_public_key(key), t, ctx)
+            || !EC_POINT_get_affine_coordinates(group, pt, x1, NULL, ctx)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_EC_LIB);
+        goto done;
+    }
+
+    if (!BN_mod_add(t, e, x1, order, ctx)) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    if (BN_cmp(r, t) == 0)
+        ret = 1;
+
+ done:
+    BN_CTX_end(ctx);
+    EC_POINT_free(pt);
+    BN_CTX_free(ctx);
+    return ret;
+}
+
+ECDSA_SIG *ossl_sm2_do_sign(const EC_KEY *key,
+                            const EVP_MD *digest,
+                            const uint8_t *id,
+                            const size_t id_len,
+                            const uint8_t *msg, size_t msg_len)
+{
+    BIGNUM *e = NULL;
+    ECDSA_SIG *sig = NULL;
+
+    e = sm2_compute_msg_hash(digest, key, id, id_len, msg, msg_len);
+    if (e == NULL) {
+        /* SM2err already called */
+        goto done;
+    }
+
+    sig = sm2_sig_gen(key, e);
+
+ done:
+    BN_free(e);
+    return sig;
+}
+
+int ossl_sm2_do_verify(const EC_KEY *key,
+                       const EVP_MD *digest,
+                       const ECDSA_SIG *sig,
+                       const uint8_t *id,
+                       const size_t id_len,
+                       const uint8_t *msg, size_t msg_len)
+{
+    BIGNUM *e = NULL;
+    int ret = 0;
+
+    e = sm2_compute_msg_hash(digest, key, id, id_len, msg, msg_len);
+    if (e == NULL) {
+        /* SM2err already called */
+        goto done;
+    }
+
+    ret = sm2_sig_verify(key, sig, e);
+
+ done:
+    BN_free(e);
+    return ret;
+}
+
+int ossl_sm2_internal_sign(const unsigned char *dgst, int dgstlen,
+                           unsigned char *sig, unsigned int *siglen,
+                           EC_KEY *eckey)
+{
+    BIGNUM *e = NULL;
+    ECDSA_SIG *s = NULL;
+    int sigleni;
+    int ret = -1;
+
+    if (sig == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_PASSED_NULL_PARAMETER);
+        goto done;
+    }
+
+    e = BN_bin2bn(dgst, dgstlen, NULL);
+    if (e == NULL) {
+       ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+       goto done;
+    }
+
+    s = sm2_sig_gen(eckey, e);
+    if (s == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+        goto done;
+    }
+
+    sigleni = i2d_ECDSA_SIG(s, &sig);
+    if (sigleni < 0) {
+       ERR_raise(ERR_LIB_SM2, ERR_R_INTERNAL_ERROR);
+       goto done;
+    }
+    *siglen = (unsigned int)sigleni;
+
+    ret = 1;
+
+ done:
+    ECDSA_SIG_free(s);
+    BN_free(e);
+    return ret;
+}
+
+int ossl_sm2_internal_verify(const unsigned char *dgst, int dgstlen,
+                             const unsigned char *sig, int sig_len,
+                             EC_KEY *eckey)
+{
+    ECDSA_SIG *s = NULL;
+    BIGNUM *e = NULL;
+    const unsigned char *p = sig;
+    unsigned char *der = NULL;
+    int derlen = -1;
+    int ret = -1;
+
+    s = ECDSA_SIG_new();
+    if (s == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_ECDSA_LIB);
+        goto done;
+    }
+    if (d2i_ECDSA_SIG(&s, &p, sig_len) == NULL) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_ENCODING);
+        goto done;
+    }
+    /* Ensure signature uses DER and doesn't have trailing garbage */
+    derlen = i2d_ECDSA_SIG(s, &der);
+    if (derlen != sig_len || memcmp(sig, der, derlen) != 0) {
+        ERR_raise(ERR_LIB_SM2, SM2_R_INVALID_ENCODING);
+        goto done;
+    }
+
+    e = BN_bin2bn(dgst, dgstlen, NULL);
+    if (e == NULL) {
+        ERR_raise(ERR_LIB_SM2, ERR_R_BN_LIB);
+        goto done;
+    }
+
+    ret = sm2_sig_verify(eckey, s, e);
+
+ done:
+    OPENSSL_free(der);
+    BN_free(e);
+    ECDSA_SIG_free(s);
+    return ret;
+}