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authorAntoine Tenart <antoine.tenart@bootlin.com>2018-05-29 14:13:52 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2018-06-22 23:03:06 +0800
commitea23cb533ce419204af129380cfe1d287481aa14 (patch)
tree2a65539453517864d7a6e729e67a664e62992769
parent1f5d5d981879466c4af8be5415fb8be6eb451470 (diff)
downloadlinux-ea23cb533ce419204af129380cfe1d287481aa14.tar.bz2
crypto: inside-secure - authenc(hmac(sha384), cbc(aes)) support
This patch adds the authenc(hmac(sha384),cbc(aes)) 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>
-rw-r--r--drivers/crypto/inside-secure/safexcel.c1
-rw-r--r--drivers/crypto/inside-secure/safexcel.h1
-rw-r--r--drivers/crypto/inside-secure/safexcel_cipher.c39
3 files changed, 41 insertions, 0 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index 5ef8ba7ae29c..c39d2d7c9917 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -800,6 +800,7 @@ static struct safexcel_alg_template *safexcel_algs[] = {
&safexcel_alg_authenc_hmac_sha1_cbc_aes,
&safexcel_alg_authenc_hmac_sha224_cbc_aes,
&safexcel_alg_authenc_hmac_sha256_cbc_aes,
+ &safexcel_alg_authenc_hmac_sha384_cbc_aes,
&safexcel_alg_authenc_hmac_sha512_cbc_aes,
};
diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h
index e002f963ff5a..5d6b3b705d0c 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -682,6 +682,7 @@ extern struct safexcel_alg_template safexcel_alg_hmac_sha512;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_aes;
+extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_aes;
#endif
diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c
index 560c1e54ce9d..ca4bc2d28d2a 100644
--- a/drivers/crypto/inside-secure/safexcel_cipher.c
+++ b/drivers/crypto/inside-secure/safexcel_cipher.c
@@ -200,6 +200,11 @@ static int safexcel_aead_aes_setkey(struct crypto_aead *ctfm, const u8 *key,
keys.authkeylen, &istate, &ostate))
goto badkey;
break;
+ case CONTEXT_CONTROL_CRYPTO_ALG_SHA384:
+ if (safexcel_hmac_setkey("safexcel-sha384", keys.authkey,
+ keys.authkeylen, &istate, &ostate))
+ goto badkey;
+ break;
case CONTEXT_CONTROL_CRYPTO_ALG_SHA512:
if (safexcel_hmac_setkey("safexcel-sha512", keys.authkey,
keys.authkeylen, &istate, &ostate))
@@ -1058,3 +1063,37 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_aes = {
},
},
};
+
+static int safexcel_aead_sha384_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_cra_init(tfm);
+ ctx->alg = CONTEXT_CONTROL_CRYPTO_ALG_SHA384;
+ ctx->state_sz = SHA512_DIGEST_SIZE;
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_aes = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .alg.aead = {
+ .setkey = safexcel_aead_aes_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha384),cbc(aes))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha384-cbc-aes",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha384_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};