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Date: Tue, 29 May 2018 14:13:50 +0200
From: Antoine Tenart <antoine.tenart@...tlin.com>
To: herbert@...dor.apana.org.au, davem@...emloft.net
Cc: Antoine Tenart <antoine.tenart@...tlin.com>,
linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
thomas.petazzoni@...tlin.com, maxime.chevallier@...tlin.com,
gregory.clement@...tlin.com, miquel.raynal@...tlin.com,
nadavh@...vell.com, oferh@...vell.com, igall@...vell.com
Subject: [PATCH 08/10] crypto: inside-secure - sha384 support
This patch adds the sha384 algorithm support to the Inside Secure
SafeXcel driver.
Signed-off-by: Antoine Tenart <antoine.tenart@...tlin.com>
---
drivers/crypto/inside-secure/safexcel.c | 1 +
drivers/crypto/inside-secure/safexcel.h | 1 +
drivers/crypto/inside-secure/safexcel_hash.c | 76 +++++++++++++++++++-
3 files changed, 77 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index dcb39d0d82bb..b02451e0bbb6 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -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,
diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h
index 9e24cab279d2..57abf75e8b66 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -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;
diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index 54f9e4da7db6..daa37fa7077f 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -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)
{
--
2.17.0
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