#include "bcal-basic.h"
#include "memxor.h"
-uint8_t bcal_cbc_init(const bcdesc_t* desc, const void* key, uint16_t keysize_b, bcal_cbc_ctx_t* ctx){
+uint8_t bcal_cbc_init(const bcdesc_t *desc, const void *key, uint16_t keysize_b, bcal_cbc_ctx_t *ctx){
ctx->desc = (bcdesc_t*)desc;
ctx->blocksize_B = (bcal_cipher_getBlocksize_b(desc)+7)/8;
ctx->prev_block = malloc(ctx->blocksize_B);
return bcal_cipher_init(desc, key, keysize_b, &(ctx->cctx));
}
-void bcal_cbc_free(bcal_cbc_ctx_t* ctx){
+void bcal_cbc_free(bcal_cbc_ctx_t *ctx){
bcal_cipher_free(&(ctx->cctx));
free(ctx->prev_block);
}
-void bcal_cbc_loadIV(const void* iv, bcal_cbc_ctx_t* ctx){
+void bcal_cbc_loadIV(const void *iv, bcal_cbc_ctx_t *ctx){
if(iv){
memcpy(ctx->prev_block, iv, ctx->blocksize_B);
}
}
-void bcal_cbc_encNext(void* block, bcal_cbc_ctx_t* ctx){
+void bcal_cbc_encNext(void *block, bcal_cbc_ctx_t *ctx){
memxor(block, ctx->prev_block, ctx->blocksize_B);
bcal_cipher_enc(block, &(ctx->cctx));
memcpy(ctx->prev_block, block, ctx->blocksize_B);
}
-void bcal_cbc_decNext(void* block, bcal_cbc_ctx_t* ctx){
+void bcal_cbc_decNext(void *block, bcal_cbc_ctx_t *ctx){
uint8_t tmp[ctx->blocksize_B];
memcpy(tmp, block, ctx->blocksize_B);
bcal_cipher_dec(block, &(ctx->cctx));
memxor(block, ctx->prev_block, ctx->blocksize_B);
memcpy(ctx->prev_block, tmp, ctx->blocksize_B);
}
-void bcal_cbc_decRand(void* block, const void* prev_block, bcal_cbc_ctx_t* ctx){
+void bcal_cbc_decRand(void *block, const void *prev_block, bcal_cbc_ctx_t *ctx){
bcal_cipher_dec(block, &(ctx->cctx));
memxor(block, prev_block, ctx->blocksize_B);
}
-void bcal_cbc_encMsg(const void* iv, void* msg, uint16_t msg_blocks, bcal_cbc_ctx_t* ctx){
+void bcal_cbc_encMsg(const void *iv, void *msg, uint16_t msg_blocks, bcal_cbc_ctx_t *ctx){
bcal_cbc_loadIV(iv, ctx);
while(msg_blocks--){
bcal_cbc_encNext(msg, ctx);
}
}
-void bcal_cbc_decMsg(const void* iv, void* msg, uint16_t msg_blocks, bcal_cbc_ctx_t* ctx){
+void bcal_cbc_decMsg(const void *iv, void *msg, uint16_t msg_blocks, bcal_cbc_ctx_t *ctx){
msg=(uint8_t*)msg + (msg_blocks-1)*ctx->blocksize_B;
while(msg_blocks > 1){
bcal_cbc_decRand(msg, (uint8_t*)msg-ctx->blocksize_B, ctx);