On Fri, 13 Sep 2019 at 16:06, Pascal van Leeuwen <[email protected]> wrote:
>
> This patch adds support for the authenc(hmac(sha1),cbc(des)) aead
>
> Signed-off-by: Pascal van Leeuwen <[email protected]>
Please make sure your code is based on cryptodev/master before sending
it to the list.
--
Ard.
> ---
> 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
>
