aboutsummaryrefslogtreecommitdiff
path: root/gost_grasshopper_cipher.c
diff options
context:
space:
mode:
authorDmitry Timoshkov <dmitry@baikal.ru>2019-09-04 11:42:59 +0800
committerDmitry Timoshkov <dmitry@baikal.ru>2019-09-05 15:06:56 +0800
commit5900ae4498b35f8a8ba03cdc66f92c0bbd9bec06 (patch)
treee909ef0955a62601d593150d6fba6ab8600a0a81 /gost_grasshopper_cipher.c
parenta418dfa28b4c3432a6da7d01adc1038789ce209c (diff)
downloadgost-engine-5900ae4498b35f8a8ba03cdc66f92c0bbd9bec06.zip
gost-engine-5900ae4498b35f8a8ba03cdc66f92c0bbd9bec06.tar.gz
gost-engine-5900ae4498b35f8a8ba03cdc66f92c0bbd9bec06.tar.bz2
Fix compilation with Microsoft Visual C.
Diffstat (limited to 'gost_grasshopper_cipher.c')
-rw-r--r--gost_grasshopper_cipher.c54
1 files changed, 28 insertions, 26 deletions
diff --git a/gost_grasshopper_cipher.c b/gost_grasshopper_cipher.c
index df58097..ba353c2 100644
--- a/gost_grasshopper_cipher.c
+++ b/gost_grasshopper_cipher.c
@@ -26,12 +26,7 @@ enum GRASSHOPPER_CIPHER_TYPE {
};
static EVP_CIPHER *gost_grasshopper_ciphers[6] = {
- [GRASSHOPPER_CIPHER_ECB] = NULL,
- [GRASSHOPPER_CIPHER_CBC] = NULL,
- [GRASSHOPPER_CIPHER_OFB] = NULL,
- [GRASSHOPPER_CIPHER_CFB] = NULL,
- [GRASSHOPPER_CIPHER_CTR] = NULL,
- [GRASSHOPPER_CIPHER_CTRACPKM] = NULL,
+ NULL, NULL, NULL, NULL, NULL, NULL,
};
static GRASSHOPPER_INLINE void
@@ -51,7 +46,7 @@ struct GRASSHOPPER_CIPHER_PARAMS {
};
static struct GRASSHOPPER_CIPHER_PARAMS gost_cipher_params[6] = {
- [GRASSHOPPER_CIPHER_ECB] = {
+ {
NID_grasshopper_ecb,
gost_grasshopper_cipher_init_ecb,
gost_grasshopper_cipher_do_ecb,
@@ -61,7 +56,7 @@ static struct GRASSHOPPER_CIPHER_PARAMS gost_cipher_params[6] = {
0,
true}
,
- [GRASSHOPPER_CIPHER_CBC] = {
+ {
NID_grasshopper_cbc,
gost_grasshopper_cipher_init_cbc,
gost_grasshopper_cipher_do_cbc,
@@ -71,7 +66,7 @@ static struct GRASSHOPPER_CIPHER_PARAMS gost_cipher_params[6] = {
16,
true}
,
- [GRASSHOPPER_CIPHER_OFB] = {
+ {
NID_grasshopper_ofb,
gost_grasshopper_cipher_init_ofb,
gost_grasshopper_cipher_do_ofb,
@@ -81,7 +76,7 @@ static struct GRASSHOPPER_CIPHER_PARAMS gost_cipher_params[6] = {
16,
false}
,
- [GRASSHOPPER_CIPHER_CFB] = {
+ {
NID_grasshopper_cfb,
gost_grasshopper_cipher_init_cfb,
gost_grasshopper_cipher_do_cfb,
@@ -91,7 +86,7 @@ static struct GRASSHOPPER_CIPHER_PARAMS gost_cipher_params[6] = {
16,
false}
,
- [GRASSHOPPER_CIPHER_CTR] = {
+ {
NID_grasshopper_ctr,
gost_grasshopper_cipher_init_ctr,
gost_grasshopper_cipher_do_ctr,
@@ -104,7 +99,7 @@ static struct GRASSHOPPER_CIPHER_PARAMS gost_cipher_params[6] = {
16,
false}
,
- [GRASSHOPPER_CIPHER_CTRACPKM] = {
+ {
NID_id_tc26_cipher_gostr3412_2015_kuznyechik_ctracpkm,
gost_grasshopper_cipher_init_ctracpkm,
gost_grasshopper_cipher_do_ctracpkm,
@@ -418,6 +413,9 @@ int gost_grasshopper_cipher_do_ctr(EVP_CIPHER_CTX *ctx, unsigned char *out,
unsigned int n = EVP_CIPHER_CTX_num(ctx);
size_t lasted;
size_t i;
+ size_t blocks;
+ grasshopper_w128_t *iv_buffer;
+ grasshopper_w128_t tmp;
while (n && inl) {
*(current_out++) = *(current_in++) ^ c->partial_buffer.b[n];
@@ -425,10 +423,9 @@ int gost_grasshopper_cipher_do_ctr(EVP_CIPHER_CTX *ctx, unsigned char *out,
n = (n + 1) % GRASSHOPPER_BLOCK_SIZE;
}
EVP_CIPHER_CTX_set_num(ctx, n);
- size_t blocks = inl / GRASSHOPPER_BLOCK_SIZE;
+ blocks = inl / GRASSHOPPER_BLOCK_SIZE;
- grasshopper_w128_t *iv_buffer = (grasshopper_w128_t *) iv;
- grasshopper_w128_t tmp;
+ iv_buffer = (grasshopper_w128_t *) iv;
// full parts
for (i = 0; i < blocks; i++) {
@@ -480,15 +477,15 @@ int gost_grasshopper_cipher_do_ctracpkm(EVP_CIPHER_CTX *ctx,
gost_grasshopper_cipher_ctx_ctr *c = EVP_CIPHER_CTX_get_cipher_data(ctx);
unsigned char *iv = EVP_CIPHER_CTX_iv_noconst(ctx);
unsigned int num = EVP_CIPHER_CTX_num(ctx);
+ size_t blocks, i, lasted;
+ grasshopper_w128_t tmp;
while ((num & GRASSHOPPER_BLOCK_MASK) && inl) {
*out++ = *in++ ^ c->partial_buffer.b[num & GRASSHOPPER_BLOCK_MASK];
--inl;
num++;
}
- size_t blocks = inl / GRASSHOPPER_BLOCK_SIZE;
- size_t i;
- grasshopper_w128_t tmp;
+ blocks = inl / GRASSHOPPER_BLOCK_SIZE;
// full parts
for (i = 0; i < blocks; i++) {
@@ -507,7 +504,7 @@ int gost_grasshopper_cipher_do_ctracpkm(EVP_CIPHER_CTX *ctx,
}
// last part
- size_t lasted = inl - blocks * GRASSHOPPER_BLOCK_SIZE;
+ lasted = inl - blocks * GRASSHOPPER_BLOCK_SIZE;
if (lasted > 0) {
apply_acpkm_grasshopper(c, &num);
grasshopper_encrypt_block(&c->c.encrypt_round_keys,
@@ -688,13 +685,14 @@ int gost_grasshopper_cipher_do_cfb(EVP_CIPHER_CTX *ctx, unsigned char *out,
int gost_grasshopper_cipher_cleanup(EVP_CIPHER_CTX *ctx)
{
+ struct GRASSHOPPER_CIPHER_PARAMS *params;
gost_grasshopper_cipher_ctx *c =
(gost_grasshopper_cipher_ctx *) EVP_CIPHER_CTX_get_cipher_data(ctx);
if (!c)
return 1;
- struct GRASSHOPPER_CIPHER_PARAMS *params = &gost_cipher_params[c->type];
+ params = &gost_cipher_params[c->type];
gost_grasshopper_cipher_destroy(c);
if (params->destroy_cipher != NULL) {
@@ -863,14 +861,18 @@ const GRASSHOPPER_INLINE EVP_CIPHER *cipher_gost_grasshopper(uint8_t mode,
cipher = &gost_grasshopper_ciphers[num];
if (*cipher == NULL) {
+ grasshopper_init_cipher_func init_cipher;
+ int nid, block_size, ctx_size, iv_size;
+ bool padding;
+
params = &gost_cipher_params[num];
- int nid = params->nid;
- grasshopper_init_cipher_func init_cipher = params->init_cipher;
- int block_size = params->block_size;
- int ctx_size = params->ctx_size;
- int iv_size = params->iv_size;
- bool padding = params->padding;
+ nid = params->nid;
+ init_cipher = params->init_cipher;
+ block_size = params->block_size;
+ ctx_size = params->ctx_size;
+ iv_size = params->iv_size;
+ padding = params->padding;
*cipher = cipher_gost_grasshopper_create(nid, block_size);
if (*cipher == NULL) {