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crypto: keembay-ocs-hcu - Add optional support for sha224

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Add optional support of sha224 and hmac(sha224).

Co-developed-by: Declan Murphy <declan.murphy@intel.com>
Signed-off-by: Declan Murphy <declan.murphy@intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Daniele Alessandrelli 2020-12-16 11:46:38 +00:00 committed by Herbert Xu
parent ae832e329a
commit b46f803688
2 changed files with 75 additions and 0 deletions
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12
drivers/crypto/keembay/Kconfig
View File

@ -55,3 +55,15 @@ config CRYPTO_DEV_KEEMBAY_OCS_HCU
as a module, the module will be called keembay-ocs-hcu.
If unsure, say N.
config CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224
bool "Enable sha224 and hmac(sha224) support in Intel Keem Bay OCS HCU"
depends on CRYPTO_DEV_KEEMBAY_OCS_HCU
help
Enables support for sha224 and hmac(sha224) algorithms in the Intel
Keem Bay OCS HCU driver. Intel recommends not to use these
algorithms.
Provides OCS HCU hardware acceleration of sha224 and hmac(224).
If unsure, say N.

63
drivers/crypto/keembay/keembay-ocs-hcu-core.c
View File

@ -575,6 +575,12 @@ static int kmb_ocs_hcu_init(struct ahash_request *req)
rctx->dig_sz = crypto_ahash_digestsize(tfm);
switch (rctx->dig_sz) {
#ifdef CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224
case SHA224_DIGEST_SIZE:
rctx->blk_sz = SHA224_BLOCK_SIZE;
rctx->algo = OCS_HCU_ALGO_SHA224;
break;
#endif /* CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224 */
case SHA256_DIGEST_SIZE:
rctx->blk_sz = SHA256_BLOCK_SIZE;
/*
@ -765,6 +771,11 @@ static int kmb_ocs_hcu_setkey(struct crypto_ahash *tfm, const u8 *key,
}
switch (digestsize) {
#ifdef CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224
case SHA224_DIGEST_SIZE:
alg_name = "sha224-keembay-ocs";
break;
#endif /* CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224 */
case SHA256_DIGEST_SIZE:
alg_name = ctx->is_sm3_tfm ? "sm3-keembay-ocs" :
"sha256-keembay-ocs";
@ -873,6 +884,58 @@ static void kmb_ocs_hcu_hmac_cra_exit(struct crypto_tfm *tfm)
}
static struct ahash_alg ocs_hcu_algs[] = {
#ifdef CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224
{
.init = kmb_ocs_hcu_init,
.update = kmb_ocs_hcu_update,
.final = kmb_ocs_hcu_final,
.finup = kmb_ocs_hcu_finup,
.digest = kmb_ocs_hcu_digest,
.export = kmb_ocs_hcu_export,
.import = kmb_ocs_hcu_import,
.halg = {
.digestsize = SHA224_DIGEST_SIZE,
.statesize = sizeof(struct ocs_hcu_rctx),
.base = {
.cra_name = "sha224",
.cra_driver_name = "sha224-keembay-ocs",
.cra_priority = 255,
.cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = SHA224_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct ocs_hcu_ctx),
.cra_alignmask = 0,
.cra_module = THIS_MODULE,
.cra_init = kmb_ocs_hcu_sha_cra_init,
}
}
},
{
.init = kmb_ocs_hcu_init,
.update = kmb_ocs_hcu_update,
.final = kmb_ocs_hcu_final,
.finup = kmb_ocs_hcu_finup,
.digest = kmb_ocs_hcu_digest,
.export = kmb_ocs_hcu_export,
.import = kmb_ocs_hcu_import,
.setkey = kmb_ocs_hcu_setkey,
.halg = {
.digestsize = SHA224_DIGEST_SIZE,
.statesize = sizeof(struct ocs_hcu_rctx),
.base = {
.cra_name = "hmac(sha224)",
.cra_driver_name = "hmac-sha224-keembay-ocs",
.cra_priority = 255,
.cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = SHA224_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct ocs_hcu_ctx),
.cra_alignmask = 0,
.cra_module = THIS_MODULE,
.cra_init = kmb_ocs_hcu_hmac_cra_init,
.cra_exit = kmb_ocs_hcu_hmac_cra_exit,
}
}
},
#endif /* CONFIG_CRYPTO_DEV_KEEMBAY_OCS_HCU_HMAC_SHA224 */
{
.init = kmb_ocs_hcu_init,
.update = kmb_ocs_hcu_update,