diff options
Diffstat (limited to 'crypto/df_sp80090a.c')
| -rw-r--r-- | crypto/df_sp80090a.c | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/crypto/df_sp80090a.c b/crypto/df_sp80090a.c index dc63b31a93fc..b8134be6f7ad 100644 --- a/crypto/df_sp80090a.c +++ b/crypto/df_sp80090a.c @@ -14,27 +14,17 @@ #include <crypto/df_sp80090a.h> #include <crypto/internal/drbg.h> -static void drbg_kcapi_symsetkey(struct crypto_aes_ctx *aesctx, - const unsigned char *key, - u8 keylen); -static void drbg_kcapi_symsetkey(struct crypto_aes_ctx *aesctx, - const unsigned char *key, u8 keylen) -{ - aes_expandkey(aesctx, key, keylen); -} - -static void drbg_kcapi_sym(struct crypto_aes_ctx *aesctx, - unsigned char *outval, +static void drbg_kcapi_sym(struct aes_enckey *aeskey, unsigned char *outval, const struct drbg_string *in, u8 blocklen_bytes) { /* there is only component in *in */ BUG_ON(in->len < blocklen_bytes); - aes_encrypt(aesctx, outval, in->buf); + aes_encrypt(aeskey, outval, in->buf); } /* BCC function for CTR DRBG as defined in 10.4.3 */ -static void drbg_ctr_bcc(struct crypto_aes_ctx *aesctx, +static void drbg_ctr_bcc(struct aes_enckey *aeskey, unsigned char *out, const unsigned char *key, struct list_head *in, u8 blocklen_bytes, @@ -47,7 +37,7 @@ static void drbg_ctr_bcc(struct crypto_aes_ctx *aesctx, drbg_string_fill(&data, out, blocklen_bytes); /* 10.4.3 step 2 / 4 */ - drbg_kcapi_symsetkey(aesctx, key, keylen); + aes_prepareenckey(aeskey, key, keylen); list_for_each_entry(curr, in, list) { const unsigned char *pos = curr->buf; size_t len = curr->len; @@ -56,7 +46,7 @@ static void drbg_ctr_bcc(struct crypto_aes_ctx *aesctx, /* 10.4.3 step 4.2 */ if (blocklen_bytes == cnt) { cnt = 0; - drbg_kcapi_sym(aesctx, out, &data, blocklen_bytes); + drbg_kcapi_sym(aeskey, out, &data, blocklen_bytes); } out[cnt] ^= *pos; pos++; @@ -66,7 +56,7 @@ static void drbg_ctr_bcc(struct crypto_aes_ctx *aesctx, } /* 10.4.3 step 4.2 for last block */ if (cnt) - drbg_kcapi_sym(aesctx, out, &data, blocklen_bytes); + drbg_kcapi_sym(aeskey, out, &data, blocklen_bytes); } /* @@ -110,7 +100,7 @@ static void drbg_ctr_bcc(struct crypto_aes_ctx *aesctx, */ /* Derivation Function for CTR DRBG as defined in 10.4.2 */ -int crypto_drbg_ctr_df(struct crypto_aes_ctx *aesctx, +int crypto_drbg_ctr_df(struct aes_enckey *aeskey, unsigned char *df_data, size_t bytes_to_return, struct list_head *seedlist, u8 blocklen_bytes, @@ -187,7 +177,7 @@ int crypto_drbg_ctr_df(struct crypto_aes_ctx *aesctx, */ drbg_cpu_to_be32(i, iv); /* 10.4.2 step 9.2 -- BCC and concatenation with temp */ - drbg_ctr_bcc(aesctx, temp + templen, K, &bcc_list, + drbg_ctr_bcc(aeskey, temp + templen, K, &bcc_list, blocklen_bytes, keylen); /* 10.4.2 step 9.3 */ i++; @@ -201,7 +191,7 @@ int crypto_drbg_ctr_df(struct crypto_aes_ctx *aesctx, /* 10.4.2 step 12: overwriting of outval is implemented in next step */ /* 10.4.2 step 13 */ - drbg_kcapi_symsetkey(aesctx, temp, keylen); + aes_prepareenckey(aeskey, temp, keylen); while (generated_len < bytes_to_return) { short blocklen = 0; /* @@ -209,7 +199,7 @@ int crypto_drbg_ctr_df(struct crypto_aes_ctx *aesctx, * implicit as the key is only drbg_blocklen in size based on * the implementation of the cipher function callback */ - drbg_kcapi_sym(aesctx, X, &cipherin, blocklen_bytes); + drbg_kcapi_sym(aeskey, X, &cipherin, blocklen_bytes); blocklen = (blocklen_bytes < (bytes_to_return - generated_len)) ? blocklen_bytes : |