Commit 6f2d1428 authored by Pascal van Leeuwen's avatar Pascal van Leeuwen Committed by Herbert Xu
Browse files

crypto: inside-secure - Add support for the cbc(sm4) skcipher 



This patch adds support for SM4 in CBC mode, i.e. skcipher cbc(sm4).

changes since v1:
- nothing

Signed-off-by: default avatarPascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent fcca797d

drivers/crypto/inside-secure/safexcel.c

+1 −0
Original line number Diff line number Diff line
@@ -1179,6 +1179,7 @@ static struct safexcel_alg_template *safexcel_algs[] = { 
	&safexcel_alg_sm3,

	&safexcel_alg_hmac_sm3,

	&safexcel_alg_ecb_sm4,

	&safexcel_alg_cbc_sm4,

};



static int safexcel_register_algorithms(struct safexcel_crypto_priv *priv)

drivers/crypto/inside-secure/safexcel.h

+1 −0
Original line number Diff line number Diff line
@@ -880,5 +880,6 @@ extern struct safexcel_alg_template safexcel_alg_chachapoly_esp; 
extern struct safexcel_alg_template safexcel_alg_sm3;

extern struct safexcel_alg_template safexcel_alg_hmac_sm3;

extern struct safexcel_alg_template safexcel_alg_ecb_sm4;

extern struct safexcel_alg_template safexcel_alg_cbc_sm4;



#endif

drivers/crypto/inside-secure/safexcel_cipher.c

+36 −0
Original line number Diff line number Diff line
@@ -2707,3 +2707,39 @@ struct safexcel_alg_template safexcel_alg_ecb_sm4 = { 
		},

	},

};



static int safexcel_skcipher_sm4_cbc_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_CBC;

	return 0;

}



struct safexcel_alg_template safexcel_alg_cbc_sm4 = {

	.type = SAFEXCEL_ALG_TYPE_SKCIPHER,

	.algo_mask = SAFEXCEL_ALG_SM4,

	.alg.skcipher = {

		.setkey = safexcel_skcipher_sm4_setkey,

		.encrypt = safexcel_sm4_blk_encrypt,

		.decrypt = safexcel_sm4_blk_decrypt,

		.min_keysize = SM4_KEY_SIZE,

		.max_keysize = SM4_KEY_SIZE,

		.ivsize = SM4_BLOCK_SIZE,

		.base = {

			.cra_name = "cbc(sm4)",

			.cra_driver_name = "safexcel-cbc-sm4",

			.cra_priority = SAFEXCEL_CRA_PRIORITY,

			.cra_flags = CRYPTO_ALG_ASYNC |

				     CRYPTO_ALG_KERN_DRIVER_ONLY,

			.cra_blocksize = SM4_BLOCK_SIZE,

			.cra_ctxsize = sizeof(struct safexcel_cipher_ctx),

			.cra_alignmask = 0,

			.cra_init = safexcel_skcipher_sm4_cbc_cra_init,

			.cra_exit = safexcel_skcipher_cra_exit,

			.cra_module = THIS_MODULE,

		},

	},

};

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