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crypto: inside-secure - authenc(hmac(sha1), cbc(aes)) support

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This patch adds the authenc(hmac(sha1),cbc(aes)) AEAD 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>
This commit is contained in:
Antoine Tenart 2018-05-14 15:11:04 +02:00 committed by Herbert Xu
parent 678b2878ac
commit 01ba061d0f
3 changed files with 41 additions and 0 deletions
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1
drivers/crypto/inside-secure/safexcel.c
View File

@ -793,6 +793,7 @@ static struct safexcel_alg_template *safexcel_algs[] = {
&safexcel_alg_hmac_sha1,
&safexcel_alg_hmac_sha224,
&safexcel_alg_hmac_sha256,
&safexcel_alg_authenc_hmac_sha1_cbc_aes,
&safexcel_alg_authenc_hmac_sha224_cbc_aes,
&safexcel_alg_authenc_hmac_sha256_cbc_aes,
};

1
drivers/crypto/inside-secure/safexcel.h
View File

@ -668,6 +668,7 @@ 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;
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;

39
drivers/crypto/inside-secure/safexcel_cipher.c
View File

@ -185,6 +185,11 @@ static int safexcel_aead_aes_setkey(struct crypto_aead *ctfm, const u8 *key,
/* Auth key */
switch (ctx->alg) {
case CONTEXT_CONTROL_CRYPTO_ALG_SHA1:
if (safexcel_hmac_setkey("safexcel-sha1", keys.authkey,
keys.authkeylen, &istate, &ostate))
goto badkey;
break;
case CONTEXT_CONTROL_CRYPTO_ALG_SHA224:
if (safexcel_hmac_setkey("safexcel-sha224", keys.authkey,
keys.authkeylen, &istate, &ostate))
@ -916,6 +921,40 @@ static int safexcel_aead_cra_init(struct crypto_tfm *tfm)
return 0;
}
static int safexcel_aead_sha1_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_SHA1;
ctx->state_sz = SHA1_DIGEST_SIZE;
return 0;
}
struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_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 = SHA1_DIGEST_SIZE,
.base = {
.cra_name = "authenc(hmac(sha1),cbc(aes))",
.cra_driver_name = "safexcel-authenc-hmac-sha1-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_sha1_cra_init,
.cra_exit = safexcel_aead_cra_exit,
.cra_module = THIS_MODULE,
},
},
};
static int safexcel_aead_sha256_cra_init(struct crypto_tfm *tfm)
{
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);