crypto: inside-secure - Added support for basic SM3 ahash (0f2bc131) · Commits · 戴 / test

drivers/crypto/inside-secure/safexcel.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1176,6 +1176,7 @@ static struct safexcel_alg_template *safexcel_algs[] = {
		&safexcel_alg_chacha20,
		&safexcel_alg_chachapoly,
		&safexcel_alg_chachapoly_esp,
		&safexcel_alg_sm3,
		};

		static int safexcel_register_algorithms(struct safexcel_crypto_priv *priv)

drivers/crypto/inside-secure/safexcel.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -373,6 +373,7 @@ struct safexcel_context_record {
		#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC128 (0x1 << 23)
		#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC192 (0x2 << 23)
		#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC256 (0x3 << 23)
		#define CONTEXT_CONTROL_CRYPTO_ALG_SM3 (0x7 << 23)
		#define CONTEXT_CONTROL_CRYPTO_ALG_POLY1305 (0xf << 23)
		#define CONTEXT_CONTROL_INV_FR (0x5 << 24)
		#define CONTEXT_CONTROL_INV_TR (0x6 << 24)
		@@ -663,6 +664,12 @@ enum safexcel_eip_version {
		/* Priority we use for advertising our algorithms */
		#define SAFEXCEL_CRA_PRIORITY 300

		/* SM3 digest result for zero length message */
		#define EIP197_SM3_ZEROM_HASH "\x1A\xB2\x1D\x83\x55\xCF\xA1\x7F" \
		"\x8E\x61\x19\x48\x31\xE8\x1A\x8F" \
		"\x22\xBE\xC8\xC7\x28\xFE\xFB\x74" \
		"\x7E\xD0\x35\xEB\x50\x82\xAA\x2B"

		/* EIP algorithm presence flags */
		enum safexcel_eip_algorithms {
		SAFEXCEL_ALG_BC0 = BIT(5),
		@@ -869,5 +876,6 @@ extern struct safexcel_alg_template safexcel_alg_cmac;
		extern struct safexcel_alg_template safexcel_alg_chacha20;
		extern struct safexcel_alg_template safexcel_alg_chachapoly;
		extern struct safexcel_alg_template safexcel_alg_chachapoly_esp;
		extern struct safexcel_alg_template safexcel_alg_sm3;

		#endif

drivers/crypto/inside-secure/safexcel_hash.c

+64 −0

Original line number	Diff line number	Diff line
		@@ -10,6 +10,7 @@
		#include <crypto/md5.h>
		#include <crypto/sha.h>
		#include <crypto/skcipher.h>
		#include <crypto/sm3.h>
		#include <linux/device.h>
		#include <linux/dma-mapping.h>
		#include <linux/dmapool.h>
		@@ -776,6 +777,14 @@ static int safexcel_ahash_final(struct ahash_request *areq)
		else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA512)
		memcpy(areq->result, sha512_zero_message_hash,
		SHA512_DIGEST_SIZE);
		else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SM3) {
		if (IS_ENABLED(CONFIG_CRYPTO_SM3))
		memcpy(areq->result, sm3_zero_message_hash,
		SM3_DIGEST_SIZE);
		else
		memcpy(areq->result,
		EIP197_SM3_ZEROM_HASH, SM3_DIGEST_SIZE);
		}

		return 0;
		} else if (unlikely(req->digest == CONTEXT_CONTROL_DIGEST_XCM &&
		@@ -2221,3 +2230,58 @@ struct safexcel_alg_template safexcel_alg_cmac = {
		},
		},
		};

		static int safexcel_sm3_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));

		ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SM3;
		req->digest = CONTEXT_CONTROL_DIGEST_PRECOMPUTED;
		req->state_sz = SM3_DIGEST_SIZE;
		req->block_sz = SM3_BLOCK_SIZE;

		return 0;
		}

		static int safexcel_sm3_digest(struct ahash_request *areq)
		{
		int ret = safexcel_sm3_init(areq);

		if (ret)
		return ret;

		return safexcel_ahash_finup(areq);
		}

		struct safexcel_alg_template safexcel_alg_sm3 = {
		.type = SAFEXCEL_ALG_TYPE_AHASH,
		.algo_mask = SAFEXCEL_ALG_SM3,
		.alg.ahash = {
		.init = safexcel_sm3_init,
		.update = safexcel_ahash_update,
		.final = safexcel_ahash_final,
		.finup = safexcel_ahash_finup,
		.digest = safexcel_sm3_digest,
		.export = safexcel_ahash_export,
		.import = safexcel_ahash_import,
		.halg = {
		.digestsize = SM3_DIGEST_SIZE,
		.statesize = sizeof(struct safexcel_ahash_export_state),
		.base = {
		.cra_name = "sm3",
		.cra_driver_name = "safexcel-sm3",
		.cra_priority = SAFEXCEL_CRA_PRIORITY,
		.cra_flags = CRYPTO_ALG_ASYNC \|
		CRYPTO_ALG_KERN_DRIVER_ONLY,
		.cra_blocksize = SM3_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,
		},
		},
		},
		};

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