crypto: inside-secure - hmac(sha224) support

This patch adds the hmac(sha224) support to the Inside Secure
cryptographic engine driver.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index 33595f4..d4a81be 100644 (file)
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -768,6 +768,7 @@ static struct safexcel_alg_template *safexcel_algs[] = {
        &safexcel_alg_sha224,
        &safexcel_alg_sha256,
        &safexcel_alg_hmac_sha1,
+       &safexcel_alg_hmac_sha224,
        &safexcel_alg_hmac_sha256,
 };
 

diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h
index 99e0f32..b470a84 100644 (file)
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -633,6 +633,7 @@ 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_hmac_sha1;
+extern struct safexcel_alg_template safexcel_alg_hmac_sha224;
 extern struct safexcel_alg_template safexcel_alg_hmac_sha256;
 
 #endif

diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index e84a1ce..317b9e4 100644 (file)
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -1153,6 +1153,62 @@ struct safexcel_alg_template safexcel_alg_sha224 = {
        },
 };
 
+static int safexcel_hmac_sha224_setkey(struct crypto_ahash *tfm, const u8 *key,
+                                      unsigned int keylen)
+{
+       return safexcel_hmac_alg_setkey(tfm, key, keylen, "safexcel-sha224",
+                                       SHA256_DIGEST_SIZE);
+}
+
+static int safexcel_hmac_sha224_init(struct ahash_request *areq)
+{
+       struct safexcel_ahash_req *req = ahash_request_ctx(areq);
+
+       safexcel_sha224_init(areq);
+       req->digest = CONTEXT_CONTROL_DIGEST_HMAC;
+       return 0;
+}
+
+static int safexcel_hmac_sha224_digest(struct ahash_request *areq)
+{
+       int ret = safexcel_hmac_sha224_init(areq);
+
+       if (ret)
+               return ret;
+
+       return safexcel_ahash_finup(areq);
+}
+
+struct safexcel_alg_template safexcel_alg_hmac_sha224 = {
+       .type = SAFEXCEL_ALG_TYPE_AHASH,
+       .alg.ahash = {
+               .init = safexcel_hmac_sha224_init,
+               .update = safexcel_ahash_update,
+               .final = safexcel_ahash_final,
+               .finup = safexcel_ahash_finup,
+               .digest = safexcel_hmac_sha224_digest,
+               .setkey = safexcel_hmac_sha224_setkey,
+               .export = safexcel_ahash_export,
+               .import = safexcel_ahash_import,
+               .halg = {
+                       .digestsize = SHA224_DIGEST_SIZE,
+                       .statesize = sizeof(struct safexcel_ahash_export_state),
+                       .base = {
+                               .cra_name = "hmac(sha224)",
+                               .cra_driver_name = "safexcel-hmac-sha224",
+                               .cra_priority = 300,
+                               .cra_flags = CRYPTO_ALG_ASYNC |
+                                            CRYPTO_ALG_KERN_DRIVER_ONLY,
+                               .cra_blocksize = SHA224_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_sha256_setkey(struct crypto_ahash *tfm, const u8 *key,
                                     unsigned int keylen)
 {