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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@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Antoine Tenart 2018-05-29 14:13:50 +02:00 committed by Herbert Xu
parent 26f7120b86
commit 9e46eafdf8
3 changed files with 77 additions and 1 deletions
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1
drivers/crypto/inside-secure/safexcel.c
View File

@ -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,

1
drivers/crypto/inside-secure/safexcel.h
View File

@ -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;

76
drivers/crypto/inside-secure/safexcel_hash.c
View File

@ -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)
{