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Add sdfdecrypt command

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This commit is contained in:
Zhi Guan
2024-06-09 15:45:40 +08:00
parent 9784bbc380
commit 830c96c5c7
7 changed files with 343 additions and 68 deletions
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165
src/sdf/sdf.c
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@@ -19,20 +19,25 @@
#include "sdf_ext.h"
static int SDF_ECCrefPublicKey_to_SM2_Z256_POINT(const ECCrefPublicKey *ref, SM2_Z256_POINT *z256_point)
{
static const uint8_t zeros[ECCref_MAX_LEN - 32] = {0};
SM2_POINT point;
static const uint8_t zeros[ECCref_MAX_LEN - 32] = {0};
if (ref->bits != 256) {
error_print();
return -1;
}
if (memcmp(ref->x, zeros, sizeof(zeros)) != 0) {
error_print();
return -1;
}
if (memcmp(ref->y, zeros, sizeof(zeros)) != 0) {
static void ECCrefPublicKey_from_SM2_Z256_POINT(ECCrefPublicKey *ref, const SM2_Z256_POINT *z256_point)
{
SM2_POINT point;
sm2_z256_point_to_bytes(z256_point, (uint8_t *)&point);
ref->bits = 256;
memcpy(ref->x, zeros, sizeof(zeros));
memcpy(ref->x + sizeof(zeros), point.x, 32);
memcpy(ref->y, zeros, sizeof(zeros));
memcpy(ref->y + sizeof(zeros), point.y, 32);
}
static int ECCrefPublicKey_to_SM2_Z256_POINT(const ECCrefPublicKey *ref, SM2_Z256_POINT *z256_point)
{
SM2_POINT point;
if (ref->bits != 256
|| memcmp(ref->x, zeros, sizeof(zeros)) != 0
|| memcmp(ref->y, zeros, sizeof(zeros)) != 0) {
error_print();
return -1;
}
@@ -42,26 +47,60 @@ static int SDF_ECCrefPublicKey_to_SM2_Z256_POINT(const ECCrefPublicKey *ref, SM2
error_print();
return -1;
}
return SDR_OK;
return 1;
}
static int SDF_ECCSignature_to_SM2_SIGNATURE(const ECCSignature *ref, SM2_SIGNATURE *sig)
static void ECCSignature_from_SM2_SIGNATURE(ECCSignature *ref, const SM2_SIGNATURE *sig)
{
static const uint8_t zeros[ECCref_MAX_LEN - 32] = {0};
memcpy(ref->r, zeros, sizeof(zeros));
memcpy(ref->r + sizeof(zeros), sig->r, 32);
memcpy(ref->s, zeros, sizeof(zeros));
memcpy(ref->s + sizeof(zeros), sig->s, 32);
}
if (memcmp(ref->r, zeros, sizeof(zeros)) != 0) {
error_print();
return -1;
}
if (memcmp(ref->s, zeros, sizeof(zeros)) != 0) {
static int ECCSignature_to_SM2_SIGNATURE(const ECCSignature *ref, SM2_SIGNATURE *sig)
{
if (memcmp(ref->r, zeros, sizeof(zeros)) != 0
|| memcmp(ref->s, zeros, sizeof(zeros)) != 0) {
error_print();
return -1;
}
memcpy(sig->r, ref->r + sizeof(zeros), 32);
memcpy(sig->s, ref->s + sizeof(zeros), 32);
return SDR_OK;
return 1;
}
static void ECCCipher_from_SM2_CIPHERTEXT(ECCCipher *eccCipher, const SM2_CIPHERTEXT *ciphertext)
{
memcpy(eccCipher->x, zeros, sizeof(zeros));
memcpy(eccCipher->x + sizeof(zeros), ciphertext->point.x, 32);
memcpy(eccCipher->y, zeros, sizeof(zeros));
memcpy(eccCipher->y + sizeof(zeros), ciphertext->point.y, 32);
memcpy(eccCipher->M, ciphertext->hash, 32);
memcpy(eccCipher->C, ciphertext->ciphertext, ciphertext->ciphertext_size);
eccCipher->L = ciphertext->ciphertext_size;
}
static int ECCCipher_to_SM2_CIPHERTEXT(const ECCCipher *eccCipher, SM2_CIPHERTEXT *ciphertext)
{
static const uint8_t zeros[ECCref_MAX_LEN - 32] = {0};
if (eccCipher->L > SM2_MAX_PLAINTEXT_SIZE
|| memcmp(eccCipher->x, zeros, sizeof(zeros)) != 0
|| memcmp(eccCipher->y, zeros, sizeof(zeros)) != 0) {
error_print();
return -1;
}
memcpy(ciphertext->point.x, eccCipher->x + sizeof(zeros), 32);
memcpy(ciphertext->point.y, eccCipher->y + sizeof(zeros), 32);
memcpy(ciphertext->hash, eccCipher->M, 32);
memcpy(ciphertext->ciphertext, eccCipher->C, eccCipher->L);
ciphertext->ciphertext_size = eccCipher->L;
return 1;
}
int sdf_load_library(const char *so_path, const char *vendor)
{
if (SDF_LoadLibrary((char *)so_path, (char *)vendor) != SDR_OK) {
@@ -348,8 +387,6 @@ int sdf_generate_key(SDF_DEVICE *dev, SDF_KEY *key,
void *hKey;
ECCrefPublicKey eccPublicKey;
ECCCipher eccCipher;
const uint8_t zeros[ECCref_MAX_LEN - 32] = {0};
SM2_POINT point;
SM2_CIPHERTEXT ciphertext;
int ret;
@@ -366,13 +403,8 @@ int sdf_generate_key(SDF_DEVICE *dev, SDF_KEY *key,
return 1;
}
// SM2_KEY => ECCrefPublicKey
sm2_z256_point_to_bytes(&sm2_key->public_key, (uint8_t *)&point);
eccPublicKey.bits = 256;
memset(eccPublicKey.x, 0, sizeof(zeros));
memcpy(eccPublicKey.x + sizeof(zeros), point.x, 32);
memset(eccPublicKey.y, 0, sizeof(zeros));
memcpy(eccPublicKey.y + sizeof(zeros), point.y, 32);
// ECCrefPublicKey <= SM2_KEY
ECCrefPublicKey_from_SM2_Z256_POINT(&eccPublicKey, &sm2_key->public_key);
// SDF_GenerateKeyWithEPK_ECC
if (SDF_OpenSession(dev->handle, &hSession) != SDR_OK) {
@@ -385,22 +417,13 @@ int sdf_generate_key(SDF_DEVICE *dev, SDF_KEY *key,
return -1;
}
// ECCCipher => SM2_CIPHERTEXT
if (eccCipher.L > SM2_MAX_PLAINTEXT_SIZE
|| memcmp(eccCipher.x, zeros, sizeof(zeros)) != 0
|| memcmp(eccCipher.y, zeros, sizeof(zeros)) != 0) {
// ECCCipher => SM2_CIPHERTEXT => DER
if (ECCCipher_to_SM2_CIPHERTEXT(&eccCipher, &ciphertext) != 1) {
(void)SDF_DestroyKey(hSession, hKey);
(void)SDF_CloseSession(hSession);
error_print();
return -1;
}
memcpy(ciphertext.point.x, eccCipher.x + sizeof(zeros), 32);
memcpy(ciphertext.point.y, eccCipher.y + sizeof(zeros), 32);
memcpy(ciphertext.hash, eccCipher.M, 32);
memcpy(ciphertext.ciphertext, eccCipher.C, eccCipher.L);
ciphertext.ciphertext_size = eccCipher.L;
// SM2_CIPHERTEXT => DER
*wrappedkey_len = 0;
if (sm2_ciphertext_to_der(&ciphertext, &wrappedkey, wrappedkey_len) != 1) {
(void)SDF_DestroyKey(hSession, hKey);
@@ -439,10 +462,7 @@ int sdf_import_key(SDF_DEVICE *dev, unsigned int key_index, const char *pass,
void *hSession;
void *hKey;
ECCCipher eccCipher;
const uint8_t zeros[ECCref_MAX_LEN - 32] = {0};
SM2_POINT point;
SM2_CIPHERTEXT ciphertext;
int ret;
if (!dev || !pass || !wrappedkey || !wrappedkey_len) {
error_print();
@@ -464,12 +484,7 @@ int sdf_import_key(SDF_DEVICE *dev, unsigned int key_index, const char *pass,
}
// ECCCipher <= SM2_CIPHERTEXT
memset(eccCipher.x, 0, sizeof(zeros));
memcpy(eccCipher.x + sizeof(zeros), ciphertext.point.x, 32);
memset(eccCipher.y, 0, sizeof(zeros));
memcpy(eccCipher.y + sizeof(zeros), ciphertext.point.y, 32);
memcpy(eccCipher.C, ciphertext.ciphertext, ciphertext.ciphertext_size);
eccCipher.L = ciphertext.ciphertext_size;
ECCCipher_from_SM2_CIPHERTEXT(&eccCipher, &ciphertext);
// SDF_ImportKeyWithISK_ECC
if (SDF_OpenSession(dev->handle, &hSession) != SDR_OK) {
@@ -688,7 +703,7 @@ int sdf_export_sign_public_key(SDF_DEVICE *dev, int key_index, SM2_KEY *sm2_key)
(void)SDF_CloseSession(hSession);
memset(sm2_key, 0, sizeof(SM2_KEY));
if (SDF_ECCrefPublicKey_to_SM2_Z256_POINT(&eccPublicKey, &sm2_key->public_key) != SDR_OK) {
if (ECCrefPublicKey_to_SM2_Z256_POINT(&eccPublicKey, &sm2_key->public_key) != 1) {
error_print();
return -1;
}
@@ -717,13 +732,14 @@ int sdf_export_encrypt_public_key(SDF_DEVICE *dev, int key_index, SM2_KEY *sm2_k
(void)SDF_CloseSession(hSession);
memset(sm2_key, 0, sizeof(SM2_KEY));
if (SDF_ECCrefPublicKey_to_SM2_Z256_POINT(&eccPublicKey, &sm2_key->public_key) != SDR_OK) {
if (ECCrefPublicKey_to_SM2_Z256_POINT(&eccPublicKey, &sm2_key->public_key) != 1) {
error_print();
return -1;
}
return 1;
}
// 这个要改为load_key
int sdf_load_sign_key(SDF_DEVICE *dev, SDF_SIGN_KEY *key, int key_index, const char *pass)
{
void *hSession = NULL;
@@ -753,7 +769,7 @@ int sdf_load_sign_key(SDF_DEVICE *dev, SDF_SIGN_KEY *key, int key_index, const c
return -1;
}
if (SDF_ECCrefPublicKey_to_SM2_Z256_POINT(&eccPublicKey, &key->public_key) != SDR_OK) {
if (ECCrefPublicKey_to_SM2_Z256_POINT(&eccPublicKey, &key->public_key) != 1) {
error_print();
return -1;
}
@@ -775,7 +791,7 @@ int sdf_sign(SDF_SIGN_KEY *key, const uint8_t dgst[32], uint8_t *sig, size_t *si
error_print();
return -1;
}
if (SDF_ECCSignature_to_SM2_SIGNATURE(&ecc_sig, &sm2_sig) != SDR_OK) {
if (ECCSignature_to_SM2_SIGNATURE(&ecc_sig, &sm2_sig) != 1) {
error_print();
return -1;
}
@@ -787,6 +803,45 @@ int sdf_sign(SDF_SIGN_KEY *key, const uint8_t dgst[32], uint8_t *sig, size_t *si
return 1;
}
int sdf_sm2_decrypt(const SDF_SIGN_KEY *key, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen)
{
ECCCipher eccCipher;
SM2_CIPHERTEXT ciphertext;
unsigned int uiLength = 0;
if (!key || !in || !outlen) {
error_print();
return -1;
}
if (!key->session || key->index < 0) {
error_print();
return -1;
}
if (!out) {
*outlen = SM2_MAX_PLAINTEXT_SIZE;
return 1;
}
if (sm2_ciphertext_from_der(&ciphertext, &in, &inlen) != 1) {
error_print();
return -1;
}
if (inlen != 0) {
error_print();
return -1;
}
ECCCipher_from_SM2_CIPHERTEXT(&eccCipher, &ciphertext);
if (SDF_InternalDecrypt_ECC(key->session, key->index, SGD_SM2_3, &eccCipher, out, &uiLength) != SDR_OK) {
error_print();
return -1;
}
*outlen = uiLength;
return 1;
}
int sdf_sign_init(SDF_SIGN_CTX *ctx, const SDF_SIGN_KEY *key, const char *id, size_t idlen)
{
if (!ctx || !key) {