diff options
Diffstat (limited to 'cipher/sm4.c')
| -rw-r--r-- | cipher/sm4.c | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/cipher/sm4.c b/cipher/sm4.c index 75f2e412..c8dd0406 100644 --- a/cipher/sm4.c +++ b/cipher/sm4.c @@ -69,6 +69,21 @@ static const char *sm4_selftest (void); +static void _gcry_sm4_ctr_enc (void *context, unsigned char *ctr, + void *outbuf_arg, const void *inbuf_arg, + size_t nblocks); +static void _gcry_sm4_cbc_dec (void *context, unsigned char *iv, + void *outbuf_arg, const void *inbuf_arg, + size_t nblocks); +static void _gcry_sm4_cfb_dec (void *context, unsigned char *iv, + void *outbuf_arg, const void *inbuf_arg, + size_t nblocks); +static size_t _gcry_sm4_ocb_crypt (gcry_cipher_hd_t c, void *outbuf_arg, + const void *inbuf_arg, size_t nblocks, + int encrypt); +static size_t _gcry_sm4_ocb_auth (gcry_cipher_hd_t c, const void *abuf_arg, + size_t nblocks); + typedef struct { u32 rkey_enc[32]; @@ -329,14 +344,13 @@ sm4_expand_key (SM4_context *ctx, const byte *key) static gcry_err_code_t sm4_setkey (void *context, const byte *key, const unsigned keylen, - gcry_cipher_hd_t hd) + cipher_bulk_ops_t *bulk_ops) { SM4_context *ctx = context; static int init = 0; static const char *selftest_failed = NULL; unsigned int hwf = _gcry_get_hw_features (); - (void)hd; (void)hwf; if (!init) @@ -359,6 +373,14 @@ sm4_setkey (void *context, const byte *key, const unsigned keylen, ctx->use_aesni_avx2 = (hwf & HWF_INTEL_AESNI) && (hwf & HWF_INTEL_AVX2); #endif + /* Setup bulk encryption routines. */ + memset (bulk_ops, 0, sizeof(*bulk_ops)); + bulk_ops->cbc_dec = _gcry_sm4_cbc_dec; + bulk_ops->cfb_dec = _gcry_sm4_cfb_dec; + bulk_ops->ctr_enc = _gcry_sm4_ctr_enc; + bulk_ops->ocb_crypt = _gcry_sm4_ocb_crypt; + bulk_ops->ocb_auth = _gcry_sm4_ocb_auth; + sm4_expand_key (ctx, key); return 0; } @@ -491,7 +513,7 @@ sm4_crypt_blocks (const u32 *rk, byte *out, const byte *in, /* Bulk encryption of complete blocks in CTR mode. This function is only intended for the bulk encryption feature of cipher.c. CTR is expected to be of size 16. */ -void +static void _gcry_sm4_ctr_enc(void *context, unsigned char *ctr, void *outbuf_arg, const void *inbuf_arg, size_t nblocks) @@ -592,7 +614,7 @@ _gcry_sm4_ctr_enc(void *context, unsigned char *ctr, /* Bulk decryption of complete blocks in CBC mode. This function is only intended for the bulk encryption feature of cipher.c. */ -void +static void _gcry_sm4_cbc_dec(void *context, unsigned char *iv, void *outbuf_arg, const void *inbuf_arg, size_t nblocks) @@ -686,7 +708,7 @@ _gcry_sm4_cbc_dec(void *context, unsigned char *iv, /* Bulk decryption of complete blocks in CFB mode. This function is only intended for the bulk encryption feature of cipher.c. */ -void +static void _gcry_sm4_cfb_dec(void *context, unsigned char *iv, void *outbuf_arg, const void *inbuf_arg, size_t nblocks) @@ -783,7 +805,7 @@ _gcry_sm4_cfb_dec(void *context, unsigned char *iv, } /* Bulk encryption/decryption of complete blocks in OCB mode. */ -size_t +static size_t _gcry_sm4_ocb_crypt (gcry_cipher_hd_t c, void *outbuf_arg, const void *inbuf_arg, size_t nblocks, int encrypt) { @@ -955,7 +977,7 @@ _gcry_sm4_ocb_crypt (gcry_cipher_hd_t c, void *outbuf_arg, } /* Bulk authentication of complete blocks in OCB mode. */ -size_t +static size_t _gcry_sm4_ocb_auth (gcry_cipher_hd_t c, const void *abuf_arg, size_t nblocks) { SM4_context *ctx = (void *)&c->context.c; @@ -1112,8 +1134,7 @@ selftest_ctr_128 (void) const int context_size = sizeof(SM4_context); return _gcry_selftest_helper_ctr("SM4", &sm4_setkey, - &sm4_encrypt, &_gcry_sm4_ctr_enc, nblocks, blocksize, - context_size); + &sm4_encrypt, nblocks, blocksize, context_size); } /* Run the self-tests for SM4-CBC, tests bulk CBC decryption. @@ -1126,8 +1147,7 @@ selftest_cbc_128 (void) const int context_size = sizeof(SM4_context); return _gcry_selftest_helper_cbc("SM4", &sm4_setkey, - &sm4_encrypt, &_gcry_sm4_cbc_dec, nblocks, blocksize, - context_size); + &sm4_encrypt, nblocks, blocksize, context_size); } /* Run the self-tests for SM4-CFB, tests bulk CFB decryption. @@ -1140,8 +1160,7 @@ selftest_cfb_128 (void) const int context_size = sizeof(SM4_context); return _gcry_selftest_helper_cfb("SM4", &sm4_setkey, - &sm4_encrypt, &_gcry_sm4_cfb_dec, nblocks, blocksize, - context_size); + &sm4_encrypt, nblocks, blocksize, context_size); } static const char * |