Added support for the SM3 ahash algorithm
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@xxxxxxxxxxxxxx>
---
drivers/crypto/inside-secure/safexcel.c | 1 +
drivers/crypto/inside-secure/safexcel.h | 2 +
drivers/crypto/inside-secure/safexcel_hash.c | 59 ++++++++++++++++++++++++++++
3 files changed, 62 insertions(+)
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index 5886bcd..826d1fb 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -1176,6 +1176,7 @@ static int safexcel_request_ring_irq(void *pdev, int irqid,
&safexcel_alg_chacha20,
&safexcel_alg_chachapoly,
&safexcel_alg_chachapoly_esp,
+ &safexcel_alg_sm3,
};
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 282d59e..fc2aba2 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -374,6 +374,7 @@ struct safexcel_context_record {
#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC192 (0x2 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC256 (0x3 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_POLY1305 (0xf << 23)
+#define CONTEXT_CONTROL_CRYPTO_ALG_SM3 (0x7 << 23)
#define CONTEXT_CONTROL_INV_FR (0x5 << 24)
#define CONTEXT_CONTROL_INV_TR (0x6 << 24)
@@ -869,5 +870,6 @@ int safexcel_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen,
extern struct safexcel_alg_template safexcel_alg_chacha20;
extern struct safexcel_alg_template safexcel_alg_chachapoly;
extern struct safexcel_alg_template safexcel_alg_chachapoly_esp;
+extern struct safexcel_alg_template safexcel_alg_sm3;
#endif
diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index 0224779..a4107bb 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -10,6 +10,7 @@
#include <crypto/md5.h>
#include <crypto/sha.h>
#include <crypto/skcipher.h>
+#include <crypto/sm3.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
@@ -776,6 +777,9 @@ static int safexcel_ahash_final(struct ahash_request *areq)
else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SHA512)
memcpy(areq->result, sha512_zero_message_hash,
SHA512_DIGEST_SIZE);
+ else if (ctx->alg == CONTEXT_CONTROL_CRYPTO_ALG_SM3)
+ memcpy(areq->result, sm3_zero_message_hash,
+ SM3_DIGEST_SIZE);
return 0;
} else if (unlikely(req->digest == CONTEXT_CONTROL_DIGEST_XCM &&
@@ -2221,3 +2225,58 @@ struct safexcel_alg_template safexcel_alg_cmac = {
},
},
};
+
+static int safexcel_sm3_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));
+
+ ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SM3;
+ req->digest = CONTEXT_CONTROL_DIGEST_PRECOMPUTED;
+ req->state_sz = SM3_DIGEST_SIZE;
+ req->block_sz = SM3_BLOCK_SIZE;
+
+ return 0;
+}
+
+static int safexcel_sm3_digest(struct ahash_request *areq)
+{
+ int ret = safexcel_sm3_init(areq);
+
+ if (ret)
+ return ret;
+
+ return safexcel_ahash_finup(areq);
+}
+
+struct safexcel_alg_template safexcel_alg_sm3 = {
+ .type = SAFEXCEL_ALG_TYPE_AHASH,
+ .algo_mask = SAFEXCEL_ALG_SM3,
+ .alg.ahash = {
+ .init = safexcel_sm3_init,
+ .update = safexcel_ahash_update,
+ .final = safexcel_ahash_final,
+ .finup = safexcel_ahash_finup,
+ .digest = safexcel_sm3_digest,
+ .export = safexcel_ahash_export,
+ .import = safexcel_ahash_import,
+ .halg = {
+ .digestsize = SM3_DIGEST_SIZE,
+ .statesize = sizeof(struct safexcel_ahash_export_state),
+ .base = {
+ .cra_name = "sm3",
+ .cra_driver_name = "safexcel-sm3",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = SM3_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,
+ },
+ },
+ },
+};
--
1.8.3.1
