From 77cdd4efe571345e9c116e65f64a616969e0bc35 Mon Sep 17 00:00:00 2001
From: Pascal van Leeuwen <pascalvanl@gmail.com>
Date: Fri, 5 Jul 2019 08:49:22 +0200
Subject: [PATCH] crypto: inside-secure - add support for
authenc(hmac(sha1),cbc(des3_ede))
Git-commit: 77cdd4efe571345e9c116e65f64a616969e0bc35
References: jsc#SLE-14454
Patch-mainline: v5.4-rc1
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
---
drivers/crypto/inside-secure/safexcel.c | 1 +
drivers/crypto/inside-secure/safexcel.h | 1 +
.../crypto/inside-secure/safexcel_cipher.c | 89 +++++++++++++++----
3 files changed, 72 insertions(+), 19 deletions(-)
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c
index 045919651272..29ea2341f10e 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -875,6 +875,7 @@ static struct safexcel_alg_template *safexcel_algs[] = {
&safexcel_alg_authenc_hmac_sha256_cbc_aes,
&safexcel_alg_authenc_hmac_sha384_cbc_aes,
&safexcel_alg_authenc_hmac_sha512_cbc_aes,
+ &safexcel_alg_authenc_hmac_sha1_cbc_des3_ede,
};
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 b73b17dcb8b1..e6ee12a68857 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -735,5 +735,6 @@ 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;
+extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_des3_ede;
#endif
diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c
index ee3a90f028b5..9c25dd0a1bfd 100644
--- a/drivers/crypto/inside-secure/safexcel_cipher.c
+++ b/drivers/crypto/inside-secure/safexcel_cipher.c
@@ -183,14 +183,16 @@ static int safexcel_skcipher_aes_setkey(struct crypto_skcipher *ctfm,
return 0;
}
-static int safexcel_aead_aes_setkey(struct crypto_aead *ctfm, const u8 *key,
- unsigned int len)
+static int safexcel_aead_setkey(struct crypto_aead *ctfm, const u8 *key,
+ unsigned int len)
{
struct crypto_tfm *tfm = crypto_aead_tfm(ctfm);
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
struct safexcel_ahash_export_state istate, ostate;
struct safexcel_crypto_priv *priv = ctx->priv;
struct crypto_authenc_keys keys;
+ u32 flags;
+ int err;
if (crypto_authenc_extractkeys(&keys, key, len) != 0)
goto badkey;
@@ -199,6 +201,15 @@ static int safexcel_aead_aes_setkey(struct crypto_aead *ctfm, const u8 *key,
goto badkey;
/* Encryption key */
+ if (ctx->alg == SAFEXCEL_3DES) {
+ flags = crypto_aead_get_flags(ctfm);
+ err = __des3_verify_key(&flags, keys.enckey);
+ crypto_aead_set_flags(ctfm, flags);
+
+ if (unlikely(err))
+ return err;
+ }
+
if (priv->flags & EIP197_TRC_CACHE && ctx->base.ctxr_dma &&
memcmp(ctx->key, keys.enckey, keys.enckeylen))
ctx->base.needs_inv = true;
@@ -1246,7 +1257,7 @@ struct safexcel_alg_template safexcel_alg_ecb_des3_ede = {
},
};
-static int safexcel_aead_encrypt(struct aead_request *req)
+static int safexcel_aead_encrypt_aes(struct aead_request *req)
{
struct safexcel_cipher_req *creq = aead_request_ctx(req);
@@ -1254,7 +1265,7 @@ static int safexcel_aead_encrypt(struct aead_request *req)
CONTEXT_CONTROL_CRYPTO_MODE_CBC, SAFEXCEL_AES);
}
-static int safexcel_aead_decrypt(struct aead_request *req)
+static int safexcel_aead_decrypt_aes(struct aead_request *req)
{
struct safexcel_cipher_req *creq = aead_request_ctx(req);
@@ -1294,9 +1305,9 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
.engines = EIP97IES | EIP197B | EIP197D,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
- .encrypt = safexcel_aead_encrypt,
- .decrypt = safexcel_aead_decrypt,
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt_aes,
+ .decrypt = safexcel_aead_decrypt_aes,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA1_DIGEST_SIZE,
.base = {
@@ -1329,9 +1340,9 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
.engines = EIP97IES | EIP197B | EIP197D,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
- .encrypt = safexcel_aead_encrypt,
- .decrypt = safexcel_aead_decrypt,
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt_aes,
+ .decrypt = safexcel_aead_decrypt_aes,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA256_DIGEST_SIZE,
.base = {
@@ -1364,9 +1375,9 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
.engines = EIP97IES | EIP197B | EIP197D,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
- .encrypt = safexcel_aead_encrypt,
- .decrypt = safexcel_aead_decrypt,
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt_aes,
+ .decrypt = safexcel_aead_decrypt_aes,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA224_DIGEST_SIZE,
.base = {
@@ -1399,9 +1410,9 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
.engines = EIP97IES | EIP197B | EIP197D,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
- .encrypt = safexcel_aead_encrypt,
- .decrypt = safexcel_aead_decrypt,
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt_aes,
+ .decrypt = safexcel_aead_decrypt_aes,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA512_DIGEST_SIZE,
.base = {
@@ -1434,9 +1445,9 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_aes = {
.type = SAFEXCEL_ALG_TYPE_AEAD,
.engines = EIP97IES | EIP197B | EIP197D,
.alg.aead = {
- .setkey = safexcel_aead_aes_setkey,
- .encrypt = safexcel_aead_encrypt,
- .decrypt = safexcel_aead_decrypt,
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt_aes,
+ .decrypt = safexcel_aead_decrypt_aes,
.ivsize = AES_BLOCK_SIZE,
.maxauthsize = SHA384_DIGEST_SIZE,
.base = {
@@ -1454,3 +1465,43 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_aes = {
},
},
};
+
+static int safexcel_aead_encrypt_3des(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_ENCRYPT,
+ CONTEXT_CONTROL_CRYPTO_MODE_CBC, SAFEXCEL_3DES);
+}
+
+static int safexcel_aead_decrypt_3des(struct aead_request *req)
+{
+ struct safexcel_cipher_req *creq = aead_request_ctx(req);
+
+ return safexcel_queue_req(&req->base, creq, SAFEXCEL_DECRYPT,
+ CONTEXT_CONTROL_CRYPTO_MODE_CBC, SAFEXCEL_3DES);
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_des3_ede = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt_3des,
+ .decrypt = safexcel_aead_decrypt_3des,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha1),cbc(des3_ede))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha1-cbc-des3_ede",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha1_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
--
2.26.2