From: Daniele Alessandrelli <daniele.alessandre...@intel.com>
Add optional support of sha224 and hmac(sha224).
Co-developed-by: Declan Murphy <declan.mur...@intel.com>
Signed-off-by: Declan Murphy <declan.mur...@intel.com>
Signed-off-by: Daniele Alessandrelli <daniele.alessandre...@intel.com>
---
drivers/crypto/keembay/Kconfig | 12 ++++
drivers/crypto/keembay/keembay-ocs-hcu-core.c | 63 +++++++++++++++++++
2 files changed, 75 insertions(+)
diff --git a/drivers/crypto/keembay/Kconfig b/drivers/crypto/keembay/Kconfig
index a4e7a1626cef..2b2f514f116b 100644
--- a/drivers/crypto/keembay/Kconfig
+++ b/drivers/crypto/keembay/Kconfig
@@ -54,3 +54,15 @@ 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.
diff --git a/drivers/crypto/keembay/keembay-ocs-hcu-core.c
b/drivers/crypto/keembay/keembay-ocs-hcu-core.c
index 37c4b4a689a8..d547af047131 100644
--- a/drivers/crypto/keembay/keembay-ocs-hcu-core.c
+++ b/drivers/crypto/keembay/keembay-ocs-hcu-core.c
@@ -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,
--
2.26.2
