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Commit 9e46eafd authored by Antoine Tenart's avatar Antoine Tenart Committed by Herbert Xu
Browse files

crypto: inside-secure - sha384 support 



This patch adds the sha384 algorithm support to the Inside Secure
SafeXcel driver.

Signed-off-by: default avatarAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 26f7120b

drivers/crypto/inside-secure/safexcel.c

+1 −0
Original line number Diff line number Diff line
@@ -790,6 +790,7 @@ static struct safexcel_alg_template *safexcel_algs[] = { 
	&safexcel_alg_sha1,

	&safexcel_alg_sha224,

	&safexcel_alg_sha256,

	&safexcel_alg_sha384,

	&safexcel_alg_sha512,

	&safexcel_alg_hmac_sha1,

	&safexcel_alg_hmac_sha224,

drivers/crypto/inside-secure/safexcel.h

+1 −0
Original line number Diff line number Diff line
@@ -672,6 +672,7 @@ extern struct safexcel_alg_template safexcel_alg_cbc_aes; 
extern struct safexcel_alg_template safexcel_alg_sha1;

extern struct safexcel_alg_template safexcel_alg_sha224;

extern struct safexcel_alg_template safexcel_alg_sha256;

extern struct safexcel_alg_template safexcel_alg_sha384;

extern struct safexcel_alg_template safexcel_alg_sha512;

extern struct safexcel_alg_template safexcel_alg_hmac_sha1;

extern struct safexcel_alg_template safexcel_alg_hmac_sha224;

drivers/crypto/inside-secure/safexcel_hash.c

+75 −1
Original line number Diff line number Diff line
@@ -96,7 +96,8 @@ static void safexcel_context_control(struct safexcel_ahash_ctx *ctx, 
			else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA224 ||

				 ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA256)

				cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(9);

			else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA512)

			else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA384 ||

				 ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA512)

				cdesc->control_data.control0 |= CONTEXT_CONTROL_SIZE(17);



			cdesc->control_data.control1 |= CONTEXT_CONTROL_DIGEST_CNT;
@@ -660,6 +661,9 @@ static int safexcel_ahash_final(struct ahash_request *areq) 
		else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA256)

			memcpy(areq->result, sha256_zero_message_hash,

			       SHA256_DIGEST_SIZE);

		else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA384)

			memcpy(areq->result, sha384_zero_message_hash,

			       SHA384_DIGEST_SIZE);

		else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA512)

			memcpy(areq->result, sha512_zero_message_hash,

			       SHA512_DIGEST_SIZE);
@@ -1359,6 +1363,76 @@ struct safexcel_alg_template safexcel_alg_sha512 = { 
	},

};



static int safexcel_sha384_init(struct ahash_request *areq)

{

	struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq));

	struct safexcel_ahash_req *req = ahash_request_ctx(areq);



	memset(req, 0, sizeof(*req));



	req->state[0] = lower_32_bits(SHA384_H0);

	req->state[1] = upper_32_bits(SHA384_H0);

	req->state[2] = lower_32_bits(SHA384_H1);

	req->state[3] = upper_32_bits(SHA384_H1);

	req->state[4] = lower_32_bits(SHA384_H2);

	req->state[5] = upper_32_bits(SHA384_H2);

	req->state[6] = lower_32_bits(SHA384_H3);

	req->state[7] = upper_32_bits(SHA384_H3);

	req->state[8] = lower_32_bits(SHA384_H4);

	req->state[9] = upper_32_bits(SHA384_H4);

	req->state[10] = lower_32_bits(SHA384_H5);

	req->state[11] = upper_32_bits(SHA384_H5);

	req->state[12] = lower_32_bits(SHA384_H6);

	req->state[13] = upper_32_bits(SHA384_H6);

	req->state[14] = lower_32_bits(SHA384_H7);

	req->state[15] = upper_32_bits(SHA384_H7);



	ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA384;

	req->digest = CONTEXT_CONTROL_DIGEST_PRECOMPUTED;

	req->state_sz = SHA512_DIGEST_SIZE;



	return 0;

}



static int safexcel_sha384_digest(struct ahash_request *areq)

{

	int ret = safexcel_sha384_init(areq);



	if (ret)

		return ret;



	return safexcel_ahash_finup(areq);

}



struct safexcel_alg_template safexcel_alg_sha384 = {

	.type = SAFEXCEL_ALG_TYPE_AHASH,

	.alg.ahash = {

		.init = safexcel_sha384_init,

		.update = safexcel_ahash_update,

		.final = safexcel_ahash_final,

		.finup = safexcel_ahash_finup,

		.digest = safexcel_sha384_digest,

		.export = safexcel_ahash_export,

		.import = safexcel_ahash_import,

		.halg = {

			.digestsize = SHA384_DIGEST_SIZE,

			.statesize = sizeof(struct safexcel_ahash_export_state),

			.base = {

				.cra_name = "sha384",

				.cra_driver_name = "safexcel-sha384",

				.cra_priority = 300,

				.cra_flags = CRYPTO_ALG_ASYNC |

					     CRYPTO_ALG_KERN_DRIVER_ONLY,

				.cra_blocksize = SHA384_BLOCK_SIZE,

				.cra_ctxsize = sizeof(struct safexcel_ahash_ctx),

				.cra_init = safexcel_ahash_cra_init,

				.cra_exit = safexcel_ahash_cra_exit,

				.cra_module = THIS_MODULE,

			},

		},

	},

};



static int safexcel_hmac_sha512_setkey(struct crypto_ahash *tfm, const u8 *key,

				       unsigned int keylen)

{