diff options
| author | Pascal van Leeuwen <pascalvanl@gmail.com> | 2019-09-13 11:10:40 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-10-05 01:06:05 +1000 |
| commit | 7468ab22d7ab968b99c75552c879cb5d96e50523 (patch) | |
| tree | c3f8dc9864ba5bbab498bde5396d45a3a50f609b /drivers/crypto/inside-secure/safexcel_cipher.c | |
| parent | a06b15b2b499ff0c950ad2da07895ae287e5c4e5 (diff) | |
crypto: inside-secure - Add support for the cfb(sm4) skcipher
This patch adds support for SM4 in CFB mode, i.e. skcipher cfb(sm4).
changes since v1:
- nothing
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/inside-secure/safexcel_cipher.c')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel_cipher.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c index b0e4bfb2e518..583cc8331706 100644 --- a/drivers/crypto/inside-secure/safexcel_cipher.c +++ b/drivers/crypto/inside-secure/safexcel_cipher.c @@ -2779,3 +2779,39 @@ struct safexcel_alg_template safexcel_alg_ofb_sm4 = { }, }, }; + +static int safexcel_skcipher_sm4_cfb_cra_init(struct crypto_tfm *tfm) +{ + struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm); + + safexcel_skcipher_cra_init(tfm); + ctx->alg = SAFEXCEL_SM4; + ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_CFB; + return 0; +} + +struct safexcel_alg_template safexcel_alg_cfb_sm4 = { + .type = SAFEXCEL_ALG_TYPE_SKCIPHER, + .algo_mask = SAFEXCEL_ALG_SM4 | SAFEXCEL_ALG_AES_XFB, + .alg.skcipher = { + .setkey = safexcel_skcipher_sm4_setkey, + .encrypt = safexcel_encrypt, + .decrypt = safexcel_decrypt, + .min_keysize = SM4_KEY_SIZE, + .max_keysize = SM4_KEY_SIZE, + .ivsize = SM4_BLOCK_SIZE, + .base = { + .cra_name = "cfb(sm4)", + .cra_driver_name = "safexcel-cfb-sm4", + .cra_priority = SAFEXCEL_CRA_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct safexcel_cipher_ctx), + .cra_alignmask = 0, + .cra_init = safexcel_skcipher_sm4_cfb_cra_init, + .cra_exit = safexcel_skcipher_cra_exit, + .cra_module = THIS_MODULE, + }, + }, +}; |