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Update sm4 tool to support more modes

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Zhi Guan
2024-02-21 09:24:22 +08:00
parent 326e7de416
commit 79a6437c8c
4 changed files with 526 additions and 27 deletions
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20
include/gmssl/sm4.h
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@@ -212,11 +212,27 @@ int sm4_ccm_decrypt(const SM4_KEY *sm4_key, const uint8_t *iv, size_t ivlen,
#ifdef ENABLE_SM4_XTS
// call `sm4_set_encrypt_key` to set both `key1` and `key2`
int sm4_xts_encrypt(const SM4_KEY *key1, const SM4_KEY *key2, size_t tweak,
int sm4_xts_encrypt(const SM4_KEY *key1, const SM4_KEY *key2, const uint8_t tweak[16],
const uint8_t *in, size_t inlen, uint8_t *out);
// call `sm4_set_decrypt_key(key1)` and `sm4_set_encrypt_key(key2)`
int sm4_xts_decrypt(const SM4_KEY *key1, const SM4_KEY *key2, size_t tweak,
int sm4_xts_decrypt(const SM4_KEY *key1, const SM4_KEY *key2, const uint8_t tweak[16],
const uint8_t *in, size_t inlen, uint8_t *out);
typedef struct {
SM4_KEY key1;
SM4_KEY key2;
uint8_t tweak[16];
size_t data_unit_size;
uint8_t *block;
size_t block_nbytes;
} SM4_XTS_CTX;
int sm4_xts_encrypt_init(SM4_XTS_CTX *ctx, const uint8_t key[32], const uint8_t iv[16], size_t data_unit_size);
int sm4_xts_encrypt_update(SM4_XTS_CTX *ctx, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
int sm4_xts_encrypt_finish(SM4_XTS_CTX *ctx, uint8_t *out, size_t *outlen);
int sm4_xts_decrypt_init(SM4_XTS_CTX *ctx, const uint8_t key[32], const uint8_t iv[16], size_t data_unit_size);
int sm4_xts_decrypt_update(SM4_XTS_CTX *ctx, const uint8_t *in, size_t inlen, uint8_t *out, size_t *outlen);
int sm4_xts_decrypt_finish(SM4_XTS_CTX *ctx, uint8_t *out, size_t *outlen);
#endif