From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antoine Tenart Subject: [PATCH 11/12] crypto: inside-secure - hmac(sha256) support Date: Thu, 15 Mar 2018 16:38:50 +0100 Message-ID: <20180315153851.9958-12-antoine.tenart@bootlin.com> References: <20180315153851.9958-1-antoine.tenart@bootlin.com> Cc: Antoine Tenart , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, maxime.chevallier@bootlin.com, gregory.clement@bootlin.com, miquel.raynal@bootlin.com, nadavh@marvell.com, oferh@marvell.com, igall@marvell.com To: herbert@gondor.apana.org.au, davem@davemloft.net Return-path: In-Reply-To: <20180315153851.9958-1-antoine.tenart@bootlin.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org Signed-off-by: Antoine Tenart --- drivers/crypto/inside-secure/safexcel.c | 3 +- drivers/crypto/inside-secure/safexcel.h | 1 + drivers/crypto/inside-secure/safexcel_hash.c | 80 +++++++++++++++++++++++++--- 3 files changed, 75 insertions(+), 9 deletions(-) diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 7b291068222f..5c19bdb28fe1 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -354,7 +354,7 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv) val |= EIP197_PROTOCOL_ENCRYPT_ONLY | EIP197_PROTOCOL_HASH_ONLY; val |= EIP197_ALG_AES_ECB | EIP197_ALG_AES_CBC; val |= EIP197_ALG_SHA1 | EIP197_ALG_HMAC_SHA1; - val |= EIP197_ALG_SHA2; + val |= EIP197_ALG_SHA2 | EIP197_ALG_HMAC_SHA2; writel(val, EIP197_PE(priv) + EIP197_PE_EIP96_FUNCTION_EN); /* Command Descriptor Rings prepare */ @@ -768,6 +768,7 @@ static struct safexcel_alg_template *safexcel_algs[] = { &safexcel_alg_sha224, &safexcel_alg_sha256, &safexcel_alg_hmac_sha1, + &safexcel_alg_hmac_sha256, }; static int safexcel_register_algorithms(struct safexcel_crypto_priv *priv) diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index 8c139b98a580..4ada6be304f4 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -632,5 +632,6 @@ 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_hmac_sha1; +extern struct safexcel_alg_template safexcel_alg_hmac_sha256; #endif diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c index 845a5ebf25b4..61c0c82add34 100644 --- a/drivers/crypto/inside-secure/safexcel_hash.c +++ b/drivers/crypto/inside-secure/safexcel_hash.c @@ -22,8 +22,8 @@ struct safexcel_ahash_ctx { u32 alg; - u32 ipad[SHA1_DIGEST_SIZE / sizeof(u32)]; - u32 opad[SHA1_DIGEST_SIZE / sizeof(u32)]; + u32 ipad[SHA256_DIGEST_SIZE / sizeof(u32)]; + u32 opad[SHA256_DIGEST_SIZE / sizeof(u32)]; }; struct safexcel_ahash_req { @@ -961,20 +961,21 @@ static int safexcel_hmac_setkey(const char *alg, const u8 *key, return ret; } -static int safexcel_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key, - unsigned int keylen) +static int safexcel_hmac_alg_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen, const char *alg, + unsigned int state_sz) { struct safexcel_ahash_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); struct safexcel_crypto_priv *priv = ctx->priv; struct safexcel_ahash_export_state istate, ostate; int ret, i; - ret = safexcel_hmac_setkey("safexcel-sha1", key, keylen, &istate, &ostate); + ret = safexcel_hmac_setkey(alg, key, keylen, &istate, &ostate); if (ret) return ret; if (priv->version == EIP197 && ctx->base.ctxr) { - for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(u32); i++) { + for (i = 0; i < state_sz / sizeof(u32); i++) { if (ctx->ipad[i] != le32_to_cpu(istate.state[i]) || ctx->opad[i] != le32_to_cpu(ostate.state[i])) { ctx->base.needs_inv = true; @@ -983,12 +984,19 @@ static int safexcel_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key, } } - memcpy(ctx->ipad, &istate.state, SHA1_DIGEST_SIZE); - memcpy(ctx->opad, &ostate.state, SHA1_DIGEST_SIZE); + memcpy(ctx->ipad, &istate.state, state_sz); + memcpy(ctx->opad, &ostate.state, state_sz); return 0; } +static int safexcel_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen) +{ + return safexcel_hmac_alg_setkey(tfm, key, keylen, "safexcel-sha1", + SHA1_DIGEST_SIZE); +} + struct safexcel_alg_template safexcel_alg_hmac_sha1 = { .type = SAFEXCEL_ALG_TYPE_AHASH, .alg.ahash = { @@ -1142,3 +1150,59 @@ struct safexcel_alg_template safexcel_alg_sha224 = { }, }, }; + +static int safexcel_hmac_sha256_setkey(struct crypto_ahash *tfm, const u8 *key, + unsigned int keylen) +{ + return safexcel_hmac_alg_setkey(tfm, key, keylen, "safexcel-sha256", + SHA256_DIGEST_SIZE); +} + +static int safexcel_hmac_sha256_init(struct ahash_request *areq) +{ + struct safexcel_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); + + safexcel_sha256_init(areq); + ctx->digest = CONTEXT_CONTROL_DIGEST_HMAC; + return 0; +} + +static int safexcel_hmac_sha256_digest(struct ahash_request *areq) +{ + int ret = safexcel_hmac_sha256_init(areq); + + if (ret) + return ret; + + return safexcel_ahash_finup(areq); +} + +struct safexcel_alg_template safexcel_alg_hmac_sha256 = { + .type = SAFEXCEL_ALG_TYPE_AHASH, + .alg.ahash = { + .init = safexcel_hmac_sha256_init, + .update = safexcel_ahash_update, + .final = safexcel_ahash_final, + .finup = safexcel_ahash_finup, + .digest = safexcel_hmac_sha256_digest, + .setkey = safexcel_hmac_sha256_setkey, + .export = safexcel_ahash_export, + .import = safexcel_ahash_import, + .halg = { + .digestsize = SHA256_DIGEST_SIZE, + .statesize = sizeof(struct safexcel_ahash_export_state), + .base = { + .cra_name = "hmac(sha256)", + .cra_driver_name = "safexcel-hmac-sha256", + .cra_priority = 300, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = SHA256_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, + }, + }, + }, +}; -- 2.14.3