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add gmssl command

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This commit is contained in:
Zhi Guan
2022-04-16 22:18:45 +08:00
parent 7e4dd76839
commit 22639fce28
33 changed files with 786 additions and 216 deletions
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73
src/sm4_modes.c
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@@ -239,7 +239,6 @@ int sm4_gcm_decrypt(const SM4_KEY *key, const uint8_t *iv, size_t ivlen,
return 1;
}
int sm4_cbc_encrypt_init(SM4_CBC_CTX *ctx,
const uint8_t key[SM4_BLOCK_SIZE], const uint8_t iv[SM4_BLOCK_SIZE])
{
@@ -303,9 +302,6 @@ int sm4_cbc_encrypt_finish(SM4_CBC_CTX *ctx, uint8_t *out, size_t *outlen)
error_print();
return -1;
}
format_bytes(stderr, 0, 0, "encrypt_finish", ctx->block, ctx->block_nbytes);
if (sm4_cbc_padding_encrypt(&ctx->sm4_key, ctx->iv, ctx->block, ctx->block_nbytes, out, outlen) != 1) {
error_print();
return -1;
@@ -370,13 +366,74 @@ int sm4_cbc_decrypt_finish(SM4_CBC_CTX *ctx, uint8_t *out, size_t *outlen)
error_print();
return -1;
}
format_bytes(stderr, 0, 0, "block", ctx->block, ctx->block_nbytes);
format_bytes(stderr, 0, 0, "iv", ctx->iv, 16);
if (sm4_cbc_padding_decrypt(&ctx->sm4_key, ctx->iv, ctx->block, SM4_BLOCK_SIZE, out, outlen) != 1) {
error_print();
return -1;
}
return 1;
}
int sm4_ctr_encrypt_init(SM4_CTR_CTX *ctx,
const uint8_t key[SM4_BLOCK_SIZE], const uint8_t ctr[SM4_BLOCK_SIZE])
{
sm4_set_encrypt_key(&ctx->sm4_key, key);
memcpy(ctx->ctr, ctr, SM4_BLOCK_SIZE);
memset(ctx->block, 0, SM4_BLOCK_SIZE);
ctx->block_nbytes = 0;
return 1;
}
int sm4_ctr_encrypt_update(SM4_CTR_CTX *ctx,
const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen)
{
size_t left;
size_t nblocks;
size_t len;
if (ctx->block_nbytes >= SM4_BLOCK_SIZE) {
error_print();
return -1;
}
*outlen = 0;
if (ctx->block_nbytes) {
left = SM4_BLOCK_SIZE - ctx->block_nbytes;
if (inlen < left) {
memcpy(ctx->block + ctx->block_nbytes, in, inlen);
ctx->block_nbytes += inlen;
return 1;
}
memcpy(ctx->block + ctx->block_nbytes, in, left);
sm4_ctr_encrypt(&ctx->sm4_key, ctx->ctr, ctx->block, SM4_BLOCK_SIZE, out);
in += left;
inlen -= left;
out += SM4_BLOCK_SIZE;
*outlen += SM4_BLOCK_SIZE;
}
if (inlen >= SM4_BLOCK_SIZE) {
nblocks = inlen / SM4_BLOCK_SIZE;
len = nblocks * SM4_BLOCK_SIZE;
sm4_ctr_encrypt(&ctx->sm4_key, ctx->ctr, in, len, out);
in += len;
inlen -= len;
out += len;
*outlen += len;
}
if (inlen) {
memcpy(ctx->block, in, inlen);
}
ctx->block_nbytes = inlen;
return 1;
}
int sm4_ctr_encrypt_finish(SM4_CTR_CTX *ctx, uint8_t *out, size_t *outlen)
{
size_t left;
size_t i;
if (ctx->block_nbytes >= SM4_BLOCK_SIZE) {
error_print();
return -1;
}
sm4_ctr_encrypt(&ctx->sm4_key, ctx->ctr, ctx->block, ctx->block_nbytes, out);
return 1;
}