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Add more SM4 modes

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This commit is contained in:
Zhi Guan
2024-02-19 14:16:49 +08:00
parent 8ae03e8105
commit c9c26aca44
12 changed files with 1092 additions and 61 deletions
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35
src/sm4_ecb.c
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@@ -22,13 +22,6 @@ void sm4_ecb_encrypt(const SM4_KEY *key, const uint8_t *in, size_t nblocks, uint
}
}
typedef struct {
SM4_KEY sm4_key;
uint8_t block[SM4_BLOCK_SIZE];
size_t block_nbytes;
} SM4_ECB_CTX;
int sm4_ecb_encrypt_init(SM4_ECB_CTX *ctx, const uint8_t key[SM4_BLOCK_SIZE])
{
sm4_set_encrypt_key(&ctx->sm4_key, key);
@@ -37,7 +30,7 @@ int sm4_ecb_encrypt_init(SM4_ECB_CTX *ctx, const uint8_t key[SM4_BLOCK_SIZE])
return 1;
}
int sm4_efb_encrypt_update(SM4_ECB_CTX *ctx,
int sm4_ecb_encrypt_update(SM4_ECB_CTX *ctx,
const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen)
{
size_t left;
@@ -93,3 +86,29 @@ int sm4_ecb_encrypt_finish(SM4_ECB_CTX *ctx, uint8_t *out, size_t *outlen)
return 1;
}
int sm4_ecb_decrypt_init(SM4_ECB_CTX *ctx, const uint8_t key[SM4_BLOCK_SIZE])
{
sm4_set_decrypt_key(&ctx->sm4_key, key);
memset(ctx->block, 0, SM4_BLOCK_SIZE);
ctx->block_nbytes = 0;
return 1;
}
int sm4_ecb_decrypt_update(SM4_ECB_CTX *ctx,
const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen)
{
if (sm4_ecb_encrypt_update(ctx, in, inlen, out, outlen) != 1) {
error_print();
return -1;
}
return 1;
}
int sm4_ecb_decrypt_finish(SM4_ECB_CTX *ctx, uint8_t *out, size_t *outlen)
{
if (sm4_ecb_encrypt_finish(ctx, out, outlen) != 1) {
error_print();
return -1;
}
return 1;
}