Commit b46f8036 authored by Daniele Alessandrelli's avatar Daniele Alessandrelli Committed by Herbert Xu
Browse files

crypto: keembay-ocs-hcu - Add optional support for sha224 



Add optional support of sha224 and hmac(sha224).

Co-developed-by: default avatarDeclan Murphy <declan.murphy@intel.com>
Signed-off-by: default avatarDeclan Murphy <declan.murphy@intel.com>
Signed-off-by: default avatarDaniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent ae832e32

drivers/crypto/keembay/Kconfig

+12 −0
Original line number Diff line number Diff line
@@ -55,3 +55,15 @@ config CRYPTO_DEV_KEEMBAY_OCS_HCU 
	  as a module, the module will be called keembay-ocs-hcu.



	  If unsure, say N.



config CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224

	bool "Enable sha224 and hmac(sha224) support in Intel Keem Bay OCS HCU"

	depends on CRYPTO_DEV_KEEMBAY_OCS_HCU

	help

	  Enables support for sha224 and hmac(sha224) algorithms in the Intel

	  Keem Bay OCS HCU driver. Intel recommends not to use these

	  algorithms.



	  Provides OCS HCU hardware acceleration of sha224 and hmac(224).



	  If unsure, say N.

drivers/crypto/keembay/keembay-ocs-hcu-core.c

+63 −0
Original line number Diff line number Diff line
@@ -575,6 +575,12 @@ static int kmb_ocs_hcu_init(struct ahash_request *req) 
	rctx->dig_sz = crypto_ahash_digestsize(tfm);



	switch (rctx->dig_sz) {

#ifdef CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224

	case SHA224_DIGEST_SIZE:

		rctx->blk_sz = SHA224_BLOCK_SIZE;

		rctx->algo = OCS_HCU_ALGO_SHA224;

		break;

#endif /* CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224 */

	case SHA256_DIGEST_SIZE:

		rctx->blk_sz = SHA256_BLOCK_SIZE;

		/*
@@ -765,6 +771,11 @@ static int kmb_ocs_hcu_setkey(struct crypto_ahash *tfm, const u8 *key, 
	}



	switch (digestsize) {

#ifdef CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224

	case SHA224_DIGEST_SIZE:

		alg_name = "sha224-keembay-ocs";

		break;

#endif /* CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224 */

	case SHA256_DIGEST_SIZE:

		alg_name = ctx->is_sm3_tfm ? "sm3-keembay-ocs" :

					     "sha256-keembay-ocs";
@@ -873,6 +884,58 @@ static void kmb_ocs_hcu_hmac_cra_exit(struct crypto_tfm *tfm) 
}



static struct ahash_alg ocs_hcu_algs[] = {

#ifdef CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224

{

	.init		= kmb_ocs_hcu_init,

	.update		= kmb_ocs_hcu_update,

	.final		= kmb_ocs_hcu_final,

	.finup		= kmb_ocs_hcu_finup,

	.digest		= kmb_ocs_hcu_digest,

	.export		= kmb_ocs_hcu_export,

	.import		= kmb_ocs_hcu_import,

	.halg = {

		.digestsize	= SHA224_DIGEST_SIZE,

		.statesize	= sizeof(struct ocs_hcu_rctx),

		.base	= {

			.cra_name		= "sha224",

			.cra_driver_name	= "sha224-keembay-ocs",

			.cra_priority		= 255,

			.cra_flags		= CRYPTO_ALG_ASYNC,

			.cra_blocksize		= SHA224_BLOCK_SIZE,

			.cra_ctxsize		= sizeof(struct ocs_hcu_ctx),

			.cra_alignmask		= 0,

			.cra_module		= THIS_MODULE,

			.cra_init		= kmb_ocs_hcu_sha_cra_init,

		}

	}

},

{

	.init		= kmb_ocs_hcu_init,

	.update		= kmb_ocs_hcu_update,

	.final		= kmb_ocs_hcu_final,

	.finup		= kmb_ocs_hcu_finup,

	.digest		= kmb_ocs_hcu_digest,

	.export		= kmb_ocs_hcu_export,

	.import		= kmb_ocs_hcu_import,

	.setkey		= kmb_ocs_hcu_setkey,

	.halg = {

		.digestsize	= SHA224_DIGEST_SIZE,

		.statesize	= sizeof(struct ocs_hcu_rctx),

		.base	= {

			.cra_name		= "hmac(sha224)",

			.cra_driver_name	= "hmac-sha224-keembay-ocs",

			.cra_priority		= 255,

			.cra_flags		= CRYPTO_ALG_ASYNC,

			.cra_blocksize		= SHA224_BLOCK_SIZE,

			.cra_ctxsize		= sizeof(struct ocs_hcu_ctx),

			.cra_alignmask		= 0,

			.cra_module		= THIS_MODULE,

			.cra_init		= kmb_ocs_hcu_hmac_cra_init,

			.cra_exit		= kmb_ocs_hcu_hmac_cra_exit,

		}

	}

},

#endif /* CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224 */

{

	.init		= kmb_ocs_hcu_init,

	.update		= kmb_ocs_hcu_update,