diff --git a/CMakeLists.txt.user b/CMakeLists.txt.user
index d1ad6664b6cc9507c4e397109eb62f1646ea7811..82fe0bb1172c4d372887e194a384ea4dc35889fe 100644
--- a/CMakeLists.txt.user
+++ b/CMakeLists.txt.user
@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.11.2, 2020-04-26T22:56:12. -->
+<!-- Written by QtCreator 4.11.2, 2020-04-29T10:52:27. -->
<qtcreator>
<data>
<variable>EnvironmentId</variable>
@@ -329,7 +329,7 @@
<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
<value type="QString" key="RunConfiguration.WorkingDirectory"></value>
- <value type="QString" key="RunConfiguration.WorkingDirectory.default">C:/qt_proj/build-libdap-crypto_new-Desktop_Qt_5_14_2_MinGW_32_bit-Debug/test/crypto</value>
+ <value type="QString" key="RunConfiguration.WorkingDirectory.default"></value>
</valuemap>
<valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.1">
<value type="QString" key="Analyzer.Perf.CallgraphMode">dwarf</value>
@@ -404,7 +404,7 @@
<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
<value type="QString" key="RunConfiguration.WorkingDirectory"></value>
- <value type="QString" key="RunConfiguration.WorkingDirectory.default">C:/qt_proj/build-libdap-crypto_new-Desktop_Qt_5_14_2_MinGW_32_bit-Debug/test/cert</value>
+ <value type="QString" key="RunConfiguration.WorkingDirectory.default"></value>
</valuemap>
<value type="int" key="ProjectExplorer.Target.RunConfigurationCount">2</value>
</valuemap>
diff --git a/include/dap_enc_GOST.h b/include/dap_enc_GOST.h
index ba36ccb0b2527cf2ef14c560a03a9b0676c72cb6..9ba75cc899ec35c2ed59927b9bb556dee1a01bae 100644
--- a/include/dap_enc_GOST.h
+++ b/include/dap_enc_GOST.h
@@ -26,6 +26,21 @@ size_t dap_enc_gost_ofb_decrypt_fast(struct dap_enc_key * a_key, const void * a_
// Writes result ( out ) in already allocated buffer
size_t dap_enc_gost_ofb_encrypt_fast(struct dap_enc_key * a_key, const void * a_in,
size_t a_in_size, void * buf_out, size_t buf_out_size);
+//------KUZNECHIK_OFB--------------
+void dap_enc_kuzn_ofb_key_new(struct dap_enc_key * a_key);
+
+size_t dap_enc_kuzn_ofb_calc_decode_size(const size_t size_in);
+size_t dap_enc_kuzn_ofb_calc_encode_size(const size_t size_in);
+
+size_t dap_enc_kuzn_ofb_decrypt(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void ** a_out);
+size_t dap_enc_kuzn_ofb_encrypt(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void ** a_out);
+
+// Writes result ( out ) in already allocated buffer
+size_t dap_enc_kuzn_ofb_decrypt_fast(struct dap_enc_key * a_key, const void * a_in,
+ size_t a_in_size, void * buf_out, size_t buf_out_size);
+// Writes result ( out ) in already allocated buffer
+size_t dap_enc_kuzn_ofb_encrypt_fast(struct dap_enc_key * a_key, const void * a_in,
+ size_t a_in_size, void * buf_out, size_t buf_out_size);
#ifdef __cplusplus
}
diff --git a/src/GOST/block_chipher.c b/src/GOST/block_chipher.c
index 68b64bab746622b36bcbb7b42adf99b470e7c273..0bd604f81b6af07ba539daeef362e65b6157ac09 100644
--- a/src/GOST/block_chipher.c
+++ b/src/GOST/block_chipher.c
@@ -997,7 +997,7 @@ void DLL_IMPORT free_imit(void* ctx)
}
-int DLL_IMPORT encrypt_ecb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT encrypt_ecb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_ecb* context;
unsigned char* block;
@@ -1021,7 +1021,7 @@ int DLL_IMPORT encrypt_ecb(void *ctx, unsigned char *indata, unsigned char *outd
return 0;
}
-int DLL_IMPORT decrypt_ecb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT decrypt_ecb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_ecb* context;
size_t i;
@@ -1049,7 +1049,7 @@ static void PackBlock(unsigned char* a, size_t aLen, unsigned char* b, unsigned
memcpy(r + aLen, b, rLen - aLen);
}
-int DLL_IMPORT encrypt_cbc(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT encrypt_cbc(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_cbc* context;
size_t i, j;
@@ -1082,7 +1082,7 @@ int DLL_IMPORT encrypt_cbc(void *ctx, unsigned char *indata, unsigned char *outd
return 0;
}
-int DLL_IMPORT decrypt_cbc(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT decrypt_cbc(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_cbc* context;
size_t i, j;
@@ -1137,7 +1137,7 @@ static void IncrementModulo(unsigned char* value, size_t size)
}
}
-int DLL_IMPORT crypt_ctr(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT crypt_ctr(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_ctr* context;
size_t i;
@@ -1178,7 +1178,7 @@ int DLL_IMPORT crypt_ctr(void *ctx, unsigned char *indata, unsigned char *outdat
return 0;
}
-int DLL_IMPORT crypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT crypt_ofb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_ofb* context;
size_t i, j;
@@ -1220,17 +1220,17 @@ int DLL_IMPORT crypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdat
return 0;
}
-int DLL_IMPORT encrypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT encrypt_ofb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
return crypt_ofb(ctx, indata, outdata, length);
}
-int DLL_IMPORT decrypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT decrypt_ofb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
return crypt_ofb(ctx, indata, outdata, length);
}
-int DLL_IMPORT encrypt_cfb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT encrypt_cfb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_cfb* context;
size_t i, j;
@@ -1273,7 +1273,7 @@ int DLL_IMPORT encrypt_cfb(void *ctx, unsigned char *indata, unsigned char *outd
return 0;
}
-int DLL_IMPORT decrypt_cfb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length)
+int DLL_IMPORT decrypt_cfb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length)
{
Context_cfb* context;
size_t i, j;
diff --git a/src/GOST/block_chipher.h b/src/GOST/block_chipher.h
index 029201d798e6c9a3bcc65f962839e7d12ec0ef2f..6dd6f1234898f69072995870a6f88de4471591da 100644
--- a/src/GOST/block_chipher.h
+++ b/src/GOST/block_chipher.h
@@ -52,6 +52,9 @@
/** @brief Размер блока алгоритма 28147-89 */
#define kBlockLen89 8
+/** @brief Размер ключа алгоритма "кузнечик" */
+#define kKeyLen14 32
+
/** @brief Размер ключа алгоритма 28147-89 */
#define kKeyLen89 32
@@ -275,7 +278,7 @@ void DLL_IMPORT free_imit(void* ctx);
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT encrypt_ecb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length);
+int DLL_IMPORT encrypt_ecb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length);
/** @brief Выполнение расшифрования информации в режиме простой замены для данных кратных размеру блока
*
@@ -286,7 +289,7 @@ int DLL_IMPORT encrypt_ecb(void *ctx, unsigned char *indata, unsigned char *outd
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT decrypt_ecb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length);
+int DLL_IMPORT decrypt_ecb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length);
/** @brief Выполнение зашифрования информации в режиме простой замены с зацеплением для данных кратных размеру блока
*
@@ -297,7 +300,7 @@ int DLL_IMPORT decrypt_ecb(void *ctx, unsigned char *indata, unsigned char *outd
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT encrypt_cbc(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length);
+int DLL_IMPORT encrypt_cbc(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length);
/** @brief Выполнение рсшифрования информации в режиме простой замены с зацеплением для данных кратных размеру блока
*
@@ -308,7 +311,7 @@ int DLL_IMPORT encrypt_cbc(void *ctx, unsigned char *indata, unsigned char *outd
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT decrypt_cbc(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length);
+int DLL_IMPORT decrypt_cbc(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length);
/** @brief Выполнение шифрования (зашифрования или расшифрования) в режиме гаммирования
* @details неполным блоком может быть только последний блок, при попытке шифрования после передачи неполного блока возвращается ошибка
@@ -320,7 +323,7 @@ int DLL_IMPORT decrypt_cbc(void *ctx, unsigned char *indata, unsigned char *outd
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT crypt_ctr(void *ctx, unsigned char *indata, unsigned char *outdata, size_t length);
+int DLL_IMPORT crypt_ctr(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t length);
/** @brief Выполнение шаговой шифрования информации в режиме гаммирования с обратной связью
* @details неполным блоком может быть только последний блок, при попытке шифрования после передачи неполного блока возвращается ошибка
@@ -332,7 +335,7 @@ int DLL_IMPORT crypt_ctr(void *ctx, unsigned char *indata, unsigned char *outdat
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT crypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t inlength);
+int DLL_IMPORT crypt_ofb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t inlength);
/** @brief Выполнение зашифрования информации в режиме гаммирования с обратной связью
*
@@ -343,7 +346,7 @@ int DLL_IMPORT crypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdat
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT encrypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t inlength);
+int DLL_IMPORT encrypt_ofb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t inlength);
/** @brief Выполнение расшифрования информации в режиме гаммирования с обратной связью
*
@@ -354,7 +357,7 @@ int DLL_IMPORT encrypt_ofb(void *ctx, unsigned char *indata, unsigned char *outd
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT decrypt_ofb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t inlength);
+int DLL_IMPORT decrypt_ofb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t inlength);
/** @brief Выполнение зашифрования информации в режиме гаммирования с обратной связью по шифртексту
* @details неполным блоком может быть только последний блок, при попытке шифрования после передачи неполного блока возвращается ошибка
@@ -366,7 +369,7 @@ int DLL_IMPORT decrypt_ofb(void *ctx, unsigned char *indata, unsigned char *outd
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT encrypt_cfb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t inlength);
+int DLL_IMPORT encrypt_cfb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t inlength);
/** @brief Выполнение расшифрования информации в режиме гаммирования с обратной связью по шифртексту
* @details неполным блоком может быть только последний блок, при попытке шифрования после передачи неполного блока возвращается ошибка
@@ -378,7 +381,7 @@ int DLL_IMPORT encrypt_cfb(void *ctx, unsigned char *indata, unsigned char *outd
* @return 0 если все преобразование прошло успешно
* @return -1 если произошла ошибка
*/
-int DLL_IMPORT decrypt_cfb(void *ctx, unsigned char *indata, unsigned char *outdata, size_t inlength);
+int DLL_IMPORT decrypt_cfb(void *ctx, const unsigned char *indata, unsigned char *outdata, size_t inlength);
/** @brief Выполнение вычисления имитовставки по данным кратным размеру блока
*
diff --git a/src/dap_enc_GOST.c b/src/dap_enc_GOST.c
index 59d320bea159500d411324832f31c9f21efaf785..29a4d65bcb05fb97a26b5b420e1167c60cd611e0 100644
--- a/src/dap_enc_GOST.c
+++ b/src/dap_enc_GOST.c
@@ -16,7 +16,7 @@ void dap_enc_gost_key_generate(struct dap_enc_key * a_key, const void *kex_buf,
{
if(key_size < 32)
{
- log_it(L_ERROR, "Gost key cannot be less than 32 bytes.");
+ log_it(L_ERROR, "GOST key cannot be less than 32 bytes.");
}
a_key->last_used_timestamp = time(NULL);
@@ -25,13 +25,23 @@ void dap_enc_gost_key_generate(struct dap_enc_key * a_key, const void *kex_buf,
a_key->priv_key_data = DAP_NEW_SIZE(uint8_t, key_size);
Keccak_HashInstance Keccak_ctx;
- Keccak_HashInitialize(&Keccak_ctx, 1088, 512, key_size*8, 0x06);
+ Keccak_HashInitialize(&Keccak_ctx, 1088, 512, 32*8, 0x06);
Keccak_HashUpdate(&Keccak_ctx, kex_buf, kex_size*8);
if(seed_size)
Keccak_HashUpdate(&Keccak_ctx, seed, seed_size*8);
Keccak_HashFinal(&Keccak_ctx, a_key->priv_key_data);
}
+void dap_enc_gost_key_delete(struct dap_enc_key *a_key)
+{
+ if(a_key->priv_key_data != NULL)
+ {
+ randombytes(a_key->priv_key_data,a_key->priv_key_data_size);
+ DAP_DELETE(a_key->priv_key_data);
+ }
+ a_key->priv_key_data_size = 0;
+}
+//------GOST_OFB-----------
void dap_enc_gost_ofb_key_new(struct dap_enc_key * a_key)
{
a_key->_inheritor = NULL;
@@ -43,141 +53,218 @@ void dap_enc_gost_ofb_key_new(struct dap_enc_key * a_key)
a_key->dec_na = dap_enc_gost_ofb_decrypt_fast;
}
-void dap_enc_gost_key_delete(struct dap_enc_key *a_key)
+
+size_t dap_enc_gost_ofb_decrypt(struct dap_enc_key *a_key, const void * a_in, size_t a_in_size, void ** a_out)
{
- if(a_key->priv_key_data != NULL)
- {
- randombytes(a_key->priv_key_data,a_key->priv_key_data_size);
- DAP_DELETE(a_key->priv_key_data);
+ size_t a_out_size = a_in_size - kBlockLen89;
+ if(a_out_size <= 0) {
+ log_it(L_ERROR, "gost_ofb decryption ct with iv must be more than kBlockLen89 bytes");
+ return 0;
}
- a_key->priv_key_data_size = 0;
+ *a_out = DAP_NEW_SIZE(uint8_t, a_in_size - kBlockLen89);
+ a_out_size = dap_enc_gost_ofb_decrypt_fast(a_key, a_in, a_in_size, *a_out, a_out_size);
+ if(a_out_size == 0)
+ DAP_DEL_Z(*a_out);
+ return a_out_size;
}
-//------GOST_OFB-----------
-size_t dap_enc_gost_ofb_decrypt(struct dap_enc_key *a_key, const void * a_in,
- size_t a_in_size, void ** a_out) {
+size_t dap_enc_gost_ofb_encrypt(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void ** a_out)
+{
+ if(a_in_size <= 0) {
+ log_it(L_ERROR, "gost ofb encryption pt cannot be 0 bytes");
+ return 0;
+ }
+ size_t a_out_size = a_in_size + kBlockLen89;
+ *a_out = DAP_NEW_SIZE(uint8_t, a_out_size);
+ a_out_size = dap_enc_gost_ofb_encrypt_fast(a_key, a_in, a_in_size, *a_out, a_out_size);
+ if(a_out_size == 0)
+ DAP_DEL_Z(*a_out);
+ return a_out_size;
+}
+
+size_t dap_enc_gost_ofb_calc_encode_size(const size_t size_in)
+{
+ return size_in + kBlockLen89;
+}
- if(a_in_size <= 8) {
- log_it(L_ERROR, "gost_ofb decryption ct with iv must be more than 8 bytes");
+size_t dap_enc_gost_ofb_calc_decode_size(const size_t size_in)
+{
+ if(size_in <= kBlockLen89) {
+ log_it(L_ERROR, "gost_ofb decryption size_in ct with iv must be more than kBlockLen89 bytes");
return 0;
}
+ return size_in - kBlockLen89;
+}
+size_t dap_enc_gost_ofb_decrypt_fast(struct dap_enc_key *a_key, const void * a_in,
+ size_t a_in_size, void * a_out, size_t buf_out_size) {
+ size_t a_out_size = a_in_size - kBlockLen89;
+ if(a_out_size > buf_out_size) {
+ log_it(L_ERROR, "gost_ofb fast_decryption too small buf_out_size");
+ return 0;
+ }
+ uint8_t iv[kBlockLen89];
- uint8_t iv[8];
- memcpy(iv, a_in, 8);
+ memcpy(iv, a_in, kBlockLen89);
- *a_out = DAP_NEW_SIZE(uint8_t, a_in_size - 8);
unsigned char ctx[kOfb89ContextLen];
- if(init_ofb_89(a_key->priv_key_data, ctx, kBlockLen89, iv, 8,NULL, NULL))//, print_array, print_uint_array))
+ if(init_ofb_89(a_key->priv_key_data, ctx, kBlockLen89, iv, kBlockLen89,NULL, NULL))//, print_array, print_uint_array))
{
return 0;
}
- if(crypt_ofb(ctx, a_in + 8, *a_out, a_in_size - 8))
+ if(crypt_ofb(ctx, a_in + kBlockLen89, a_out, a_in_size - kBlockLen89))
{
return 0;
}
free_ofb(ctx);
- size_t a_out_size = a_in_size - 8;
return a_out_size;
}
-size_t dap_enc_gost_ofb_encrypt(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void ** a_out)
+size_t dap_enc_gost_ofb_encrypt_fast(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void * a_out,size_t buf_out_size)
{
//generate iv and put it in *a_out first bytes
- uint8_t iv[8];
-
- if(a_in_size <= 0) {
- log_it(L_ERROR, "gost ofb encryption pt cannot be 0 bytes");
+ size_t a_out_size = a_in_size + kBlockLen89;
+ if(a_out_size > buf_out_size) {
+ log_it(L_ERROR, "gost_ofb fast_encryption too small buf_out_size");
return 0;
}
- if(randombytes(iv, 8) == 1)
+
+ uint8_t iv[kBlockLen89];
+ if(randombytes(iv, kBlockLen89) == 1)
{
- log_it(L_ERROR, "failed to get 8 bytes iv gost ofb");
+ log_it(L_ERROR, "failed to get kBlockLen89 bytes iv gost ofb");
return 0;
}
- size_t a_out_size = a_in_size + 8;
- *a_out = DAP_NEW_SIZE(uint8_t, a_out_size);
- memcpy(*a_out, iv, 8);
+ memcpy(a_out, iv, kBlockLen89);
unsigned char ctx[kOfb89ContextLen];
- if(init_ofb_89(a_key->priv_key_data, ctx, kBlockLen89, iv, 8,NULL, NULL))//, print_array, print_uint_array))
+ if(init_ofb_89(a_key->priv_key_data, ctx, kBlockLen89, iv, kBlockLen89,NULL, NULL))//, print_array, print_uint_array))
{
return 0;
}
- if(crypt_ofb(ctx, a_in, *a_out + 8, a_in_size))
+ if(crypt_ofb(ctx, a_in, a_out + kBlockLen89, a_in_size))
{
return 0;
}
free_ofb(ctx);
return a_out_size;
+ }
+
+//------KUZN_OFB-----------
+void dap_enc_kuzn_ofb_key_new(struct dap_enc_key * a_key)
+{
+ a_key->_inheritor = NULL;
+ a_key->_inheritor_size = 0;
+ a_key->type = DAP_ENC_KEY_TYPE_GOST_OFB;
+ a_key->enc = dap_enc_kuzn_ofb_encrypt;
+ a_key->dec = dap_enc_kuzn_ofb_decrypt;
+ a_key->enc_na = dap_enc_kuzn_ofb_encrypt_fast;
+ a_key->dec_na = dap_enc_kuzn_ofb_decrypt_fast;
}
-size_t dap_enc_gost_ofb_calc_encode_size(const size_t size_in)
+
+
+size_t dap_enc_kuzn_ofb_calc_encode_size(const size_t size_in)
{
- return size_in + 8;
+ return size_in + kBlockLen14;
}
-size_t dap_enc_gost_ofb_calc_decode_size(const size_t size_in)
+size_t dap_enc_kuzn_ofb_calc_decode_size(const size_t size_in)
{
- if(size_in <= 8) {
- log_it(L_ERROR, "gost_ofb decryption size_in ct with iv must be more than 8 bytes");
+ if(size_in <= kBlockLen14) {
+ log_it(L_ERROR, "gost_ofb decryption size_in ct with iv must be more than kBlockLen14 bytes");
return 0;
}
- return size_in - 8;
+ return size_in - kBlockLen14;
}
-size_t dap_enc_gost_ofb_decrypt_fast(struct dap_enc_key *a_key, const void * a_in,
- size_t a_in_size, void * a_out, size_t buf_out_size) {
- size_t a_out_size = a_in_size - 8;
+size_t dap_enc_kuzn_ofb_encrypt_fast(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void * a_out,size_t buf_out_size)
+{
+ //generate iv and put it in *a_out first bytes
+ size_t a_out_size = a_in_size + kBlockLen14;
+ if(a_in_size <= 0) {
+ log_it(L_ERROR, "kuzn_ofb fast_encryption too small a_in_size");
+ return 0;
+ }
if(a_out_size > buf_out_size) {
- log_it(L_ERROR, "gost_ofb fast_decryption too small buf_out_size");
+ log_it(L_ERROR, "kuzn_ofb fast_encryption too small buf_out_size");
return 0;
}
- uint8_t iv[8];
-
- memcpy(iv, a_in, 8);
- unsigned char ctx[kOfb89ContextLen];
- if(init_ofb_89(a_key->priv_key_data, ctx, kBlockLen89, iv, 8,NULL, NULL))//, print_array, print_uint_array))
+ if(randombytes(a_out, kBlockLen14) == 1)//iv
{
- return 0;
- }
- if(crypt_ofb(ctx, a_in + 8, a_out, a_in_size - 8))
- {
- return 0;
+ log_it(L_ERROR, "failed to get kBlockLen14 bytes iv gost ofb");
+ return 0;
}
- free_ofb(ctx);
- return a_out_size;
-}
+ unsigned char ctx[kOfb14ContextLen];
-size_t dap_enc_gost_ofb_encrypt_fast(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void * a_out,size_t buf_out_size)
+
+ if(init_ofb_14(a_key->priv_key_data, ctx, kBlockLen14, a_out, kBlockLen14, NULL,NULL))
+ return -1;
+
+ if(crypt_ofb(ctx, a_in, a_out + kBlockLen14, a_in_size))
+ return -1;
+
+ free_ofb(ctx);
+ return a_out_size;
+ }
+
+size_t dap_enc_kuzn_ofb_decrypt_fast(struct dap_enc_key *a_key, const void * a_in,
+ size_t a_in_size, void * a_out, size_t buf_out_size)
{
- //generate iv and put it in *a_out first bytes
- size_t a_out_size = a_in_size + 8;
- if(a_out_size > buf_out_size) {
- log_it(L_ERROR, "blowfish_cbc fast_encryption too small buf_out_size");
+ size_t a_out_size = a_in_size - kBlockLen14;
+ if(a_out_size <= 0) {
+ log_it(L_ERROR, "kuzn_ofb fast_decryption too small a_in_size");
return 0;
}
- uint8_t iv[8];
- if(randombytes(iv, 8) == 1)
- {
- log_it(L_ERROR, "failed to get 8 bytes iv gost ofb");
+ if(a_out_size > buf_out_size) {
+ log_it(L_ERROR, "kuzn_ofb fast_decryption too small buf_out_size");
return 0;
}
- memcpy(a_out, iv, 8);
- unsigned char ctx[kOfb89ContextLen];
- if(init_ofb_89(a_key->priv_key_data, ctx, kBlockLen89, iv, 8,NULL, NULL))//, print_array, print_uint_array))
- {
+ unsigned char ctx[kOfb14ContextLen];
+ //iv first kBlockLen14 a_in bytes
+
+ if(init_ofb_14(a_key->priv_key_data, ctx, kBlockLen14, a_in, kBlockLen14, NULL, NULL))
+ return -1;
+
+ if(decrypt_ofb(ctx, a_in + kBlockLen14, a_out, a_out_size))
+ return -1;
+
+ free_ofb(ctx);
+ return a_out_size;
+}
+size_t dap_enc_kuzn_ofb_decrypt(struct dap_enc_key *a_key, const void * a_in,
+ size_t a_in_size, void ** a_out) {
+
+ size_t a_out_size = a_in_size - kBlockLen14;
+ if(a_out_size <= 0) {
+ log_it(L_ERROR, "kuzn_ofb decryption too small a_in_size");
return 0;
}
- if(crypt_ofb(ctx, a_in, a_out + 8, a_in_size))
- {
+
+ *a_out = DAP_NEW_SIZE(uint8_t, a_out_size);
+ a_out_size = dap_enc_kuzn_ofb_decrypt_fast(a_key, a_in, a_in_size, *a_out, a_out_size);
+ if(!a_out_size)
+ DAP_DEL_Z(*a_out);
+ return a_out_size;
+}
+
+size_t dap_enc_kuzn_ofb_encrypt(struct dap_enc_key * a_key, const void * a_in, size_t a_in_size, void ** a_out)
+{
+ //generate iv and put it in *a_out first bytes
+ if(a_in_size <= 0) {
+ log_it(L_ERROR, "kuzn fast_encryption too small a_in_size");
return 0;
}
- free_ofb(ctx);
+ size_t a_out_size = a_in_size + kBlockLen14;
+ *a_out = DAP_NEW_SIZE(uint8_t, a_out_size);
+
+ a_out_size = dap_enc_kuzn_ofb_encrypt_fast(a_key, a_in, a_in_size, *a_out, a_out_size);
+ if(!a_out_size)
+ DAP_DEL_Z(*a_out);
return a_out_size;
- }
+}
diff --git a/src/dap_enc_key.c b/src/dap_enc_key.c
index 198a851c2bb391664f8a99c5b1e849c21d4f0aeb..4352ecb65601feb4b42dcddbc9c3b8e7da7c3186 100755
--- a/src/dap_enc_key.c
+++ b/src/dap_enc_key.c
@@ -149,6 +149,22 @@ struct dap_enc_key_callbacks{
.sign_get = NULL,
.sign_verify = NULL
},
+ [DAP_ENC_KEY_TYPE_KUZN_OFB]={
+ .name = "KUZN_OFB",
+ .enc = dap_enc_kuzn_ofb_encrypt,
+ .enc_na = dap_enc_kuzn_ofb_encrypt_fast ,
+ .dec = dap_enc_kuzn_ofb_decrypt,
+ .dec_na = dap_enc_kuzn_ofb_decrypt_fast ,
+ .new_callback = dap_enc_kuzn_ofb_key_new,
+ .delete_callback = dap_enc_gost_key_delete,
+ .new_generate_callback = dap_enc_gost_key_generate,
+ .gen_key_public = NULL,
+ .gen_key_public_size = NULL,
+ .enc_out_size = dap_enc_kuzn_ofb_calc_encode_size,
+ .dec_out_size = dap_enc_kuzn_ofb_calc_decode_size,
+ .sign_get = NULL,
+ .sign_verify = NULL
+ },
[DAP_ENC_KEY_TYPE_MSRLN] = {
.name = "MSRLN",
.enc = NULL,
diff --git a/test/crypto/dap_enc_test.c b/test/crypto/dap_enc_test.c
index 94b09beaa439a6848ed70c806e6ba61b60cb0d79..024f96bddc6c0b7f69ab684dece354884cbfd229 100755
--- a/test/crypto/dap_enc_test.c
+++ b/test/crypto/dap_enc_test.c
@@ -77,6 +77,7 @@ void test_encypt_decrypt(int count_steps, const dap_enc_key_type_t key_type, con
void test_encypt_decrypt_fast(int count_steps, const dap_enc_key_type_t key_type, const int cipher_key_size)
{
+ dap_print_module_name(dap_enc_get_type_name(key_type));
const size_t buf_size = 4096;
char buf_encrypt_out[buf_size];
char buf_decrypt_out[buf_size];
diff --git a/test/crypto/main.c b/test/crypto/main.c
index 208592653d7d8ad09be2b01d819bd71e4a4ce865..dc0d5420314c0d0ccea789117b410929a1352d50 100755
--- a/test/crypto/main.c
+++ b/test/crypto/main.c
@@ -18,15 +18,18 @@ int main(void)
// switch off debug info from library
dap_log_level_set(L_CRITICAL);
- dap_enc_ringct20_tests_run(10);return 0;
+ test_encypt_decrypt (1000, DAP_ENC_KEY_TYPE_GOST_OFB, 32);
+ test_encypt_decrypt_fast (1000, DAP_ENC_KEY_TYPE_GOST_OFB, 32);
+ test_encypt_decrypt (1000, DAP_ENC_KEY_TYPE_KUZN_OFB, 32);
+ test_encypt_decrypt_fast (1000, DAP_ENC_KEY_TYPE_KUZN_OFB, 32);
+ return 0;
+ dap_enc_ringct20_tests_run(10);
dap_enc_tests_run();
test_encypt_decrypt (1000, DAP_ENC_KEY_TYPE_BF_CBC, 0);
test_encypt_decrypt_fast (1000, DAP_ENC_KEY_TYPE_BF_CBC, 0);
test_encypt_decrypt (1000, DAP_ENC_KEY_TYPE_BF_OFB, 0);
test_encypt_decrypt_fast (1000, DAP_ENC_KEY_TYPE_BF_OFB, 0);
- test_encypt_decrypt (1000, DAP_ENC_KEY_TYPE_GOST_OFB, 32);
- test_encypt_decrypt_fast (1000, DAP_ENC_KEY_TYPE_GOST_OFB, 32);
test_encypt_decrypt (1000, DAP_ENC_KEY_TYPE_IAES, 32);
test_encypt_decrypt_fast (1000, DAP_ENC_KEY_TYPE_IAES, 32);
test_encypt_decrypt (1000, DAP_ENC_KEY_TYPE_OAES, 32);