diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2018-04-25 14:20:45 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-05-05 14:52:51 +0800 |
| commit | 8da02bf1a216224e6f63b48d883b5aee07f82ba9 (patch) | |
| tree | 0768b06ea949dfe61943eadeeb74004413bc32fe | |
| parent | 9bae54942b13ea9862e9137b403308a3fd4cec3b (diff) | |
| download | linux-8da02bf1a216224e6f63b48d883b5aee07f82ba9.tar.bz2 | |
crypto: sm4 - export encrypt/decrypt routines to other drivers
In preparation of adding support for the SIMD based arm64 implementation
of arm64, which requires a fallback to non-SIMD code when invoked in
certain contexts, expose the generic SM4 encrypt and decrypt routines
to other drivers.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/sm4_generic.c | 10 | ||||
| -rw-r--r-- | include/crypto/sm4.h | 3 |
2 files changed, 9 insertions, 4 deletions
diff --git a/crypto/sm4_generic.c b/crypto/sm4_generic.c index f537a2766c55..c18eebfd5edd 100644 --- a/crypto/sm4_generic.c +++ b/crypto/sm4_generic.c @@ -190,21 +190,23 @@ static void sm4_do_crypt(const u32 *rk, u32 *out, const u32 *in) /* encrypt a block of text */ -static void sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +void crypto_sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm); sm4_do_crypt(ctx->rkey_enc, (u32 *)out, (u32 *)in); } +EXPORT_SYMBOL_GPL(crypto_sm4_encrypt); /* decrypt a block of text */ -static void sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) +void crypto_sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in) { const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm); sm4_do_crypt(ctx->rkey_dec, (u32 *)out, (u32 *)in); } +EXPORT_SYMBOL_GPL(crypto_sm4_decrypt); static struct crypto_alg sm4_alg = { .cra_name = "sm4", @@ -219,8 +221,8 @@ static struct crypto_alg sm4_alg = { .cia_min_keysize = SM4_KEY_SIZE, .cia_max_keysize = SM4_KEY_SIZE, .cia_setkey = crypto_sm4_set_key, - .cia_encrypt = sm4_encrypt, - .cia_decrypt = sm4_decrypt + .cia_encrypt = crypto_sm4_encrypt, + .cia_decrypt = crypto_sm4_decrypt } } }; diff --git a/include/crypto/sm4.h b/include/crypto/sm4.h index b64e64d20b28..7afd730d16ff 100644 --- a/include/crypto/sm4.h +++ b/include/crypto/sm4.h @@ -25,4 +25,7 @@ int crypto_sm4_set_key(struct crypto_tfm *tfm, const u8 *in_key, int crypto_sm4_expand_key(struct crypto_sm4_ctx *ctx, const u8 *in_key, unsigned int key_len); +void crypto_sm4_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); +void crypto_sm4_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in); + #endif |