This patch adds support for the authenc(hmac(sha1),cbc(des)) aead
Signed-off-by: Pascal van Leeuwen <[email protected]>
---
drivers/crypto/inside-secure/safexcel.c | 1 +
drivers/crypto/inside-secure/safexcel.h | 1 +
drivers/crypto/inside-secure/safexcel_cipher.c | 45 ++++++++++++++++++++++++++
3 files changed, 47 insertions(+)
diff --git a/drivers/crypto/inside-secure/safexcel.c
b/drivers/crypto/inside-secure/safexcel.c
index 12cb939..617c70b 100644
--- a/drivers/crypto/inside-secure/safexcel.c
+++ b/drivers/crypto/inside-secure/safexcel.c
@@ -1195,6 +1195,7 @@ static int safexcel_request_ring_irq(void *pdev, int
irqid,
&safexcel_alg_hmac_sha3_256,
&safexcel_alg_hmac_sha3_384,
&safexcel_alg_hmac_sha3_512,
+ &safexcel_alg_authenc_hmac_sha1_cbc_des,
};
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 82953b3..b020e27 100644
--- a/drivers/crypto/inside-secure/safexcel.h
+++ b/drivers/crypto/inside-secure/safexcel.h
@@ -895,5 +895,6 @@ int safexcel_hmac_setkey(const char *alg, const u8 *key,
unsigned int keylen,
extern struct safexcel_alg_template safexcel_alg_hmac_sha3_256;
extern struct safexcel_alg_template safexcel_alg_hmac_sha3_384;
extern struct safexcel_alg_template safexcel_alg_hmac_sha3_512;
+extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_des;
#endif
diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c
b/drivers/crypto/inside-secure/safexcel_cipher.c
index bf2b1f9..435f184 100644
--- a/drivers/crypto/inside-secure/safexcel_cipher.c
+++ b/drivers/crypto/inside-secure/safexcel_cipher.c
@@ -348,6 +348,7 @@ static int safexcel_aead_setkey(struct crypto_aead *ctfm,
const u8 *key,
struct safexcel_crypto_priv *priv = ctx->priv;
struct crypto_authenc_keys keys;
struct crypto_aes_ctx aes;
+ u32 tmp[DES_EXPKEY_WORDS];
u32 flags;
int err = -EINVAL;
@@ -367,6 +368,16 @@ static int safexcel_aead_setkey(struct crypto_aead *ctfm,
const u8 *key,
/* Encryption key */
switch (ctx->alg) {
+ case SAFEXCEL_DES:
+ if (keys.enckeylen != DES_KEY_SIZE)
+ goto badkey;
+ err = des_ekey(tmp, key);
+ if (unlikely(!err && (tfm->crt_flags &
+ CRYPTO_TFM_REQ_FORBID_WEAK_KEYS))) {
+ tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ goto badkey_expflags;
+ }
+ break;
case SAFEXCEL_3DES:
if (keys.enckeylen != DES3_EDE_KEY_SIZE)
goto badkey;
@@ -1854,6 +1865,40 @@ struct safexcel_alg_template
safexcel_alg_authenc_hmac_sha1_cbc_des3_ede = {
},
};
+static int safexcel_aead_sha1_des_cra_init(struct crypto_tfm *tfm)
+{
+ struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ safexcel_aead_sha1_cra_init(tfm);
+ ctx->alg = SAFEXCEL_DES; /* override default */
+ return 0;
+}
+
+struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_des = {
+ .type = SAFEXCEL_ALG_TYPE_AEAD,
+ .algo_mask = SAFEXCEL_ALG_DES | SAFEXCEL_ALG_SHA1,
+ .alg.aead = {
+ .setkey = safexcel_aead_setkey,
+ .encrypt = safexcel_aead_encrypt,
+ .decrypt = safexcel_aead_decrypt,
+ .ivsize = DES_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ .base = {
+ .cra_name = "authenc(hmac(sha1),cbc(des))",
+ .cra_driver_name = "safexcel-authenc-hmac-sha1-cbc-des",
+ .cra_priority = SAFEXCEL_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_KERN_DRIVER_ONLY,
+ .cra_blocksize = DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct safexcel_cipher_ctx),
+ .cra_alignmask = 0,
+ .cra_init = safexcel_aead_sha1_des_cra_init,
+ .cra_exit = safexcel_aead_cra_exit,
+ .cra_module = THIS_MODULE,
+ },
+ },
+};
+
static int safexcel_aead_sha1_ctr_cra_init(struct crypto_tfm *tfm)
{
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
--
1.8.3.1
