diff options
| author | Antoine Tenart <antoine.tenart@bootlin.com> | 2018-05-14 16:11:03 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-05-26 19:12:00 +0300 |
| commit | 678b2878ac396ff1cceb870b72d1e95721f7a7f2 (patch) | |
| tree | e6752d0ce0aebb78d5c74b69971f8e0fd9edce32 /drivers/crypto | |
| parent | f6beaea304872bb1c76bf6c551386bf896cac8b9 (diff) | |
| download | linux-678b2878ac396ff1cceb870b72d1e95721f7a7f2.tar.xz | |
crypto: inside-secure - authenc(hmac(sha224), cbc(aes)) support
This patch adds the authenc(hmac(sha224),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>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.c | 1 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 1 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel_cipher.c | 50 |
3 files changed, 50 insertions, 2 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 8c963ef0953a..0f061c3757e9 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -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_sha224_cbc_aes, &safexcel_alg_authenc_hmac_sha256_cbc_aes, }; diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index ae113c14caea..c2e953f60447 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -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_sha224_cbc_aes; extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_aes; #endif diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c index 51ab448f664e..9250fb205cf2 100644 --- a/drivers/crypto/inside-secure/safexcel_cipher.c +++ b/drivers/crypto/inside-secure/safexcel_cipher.c @@ -184,9 +184,21 @@ static int safexcel_aead_aes_setkey(struct crypto_aead *ctfm, const u8 *key, ctx->base.needs_inv = true; /* Auth key */ - if (safexcel_hmac_setkey("safexcel-sha256", keys.authkey, - keys.authkeylen, &istate, &ostate)) + switch (ctx->alg) { + case CONTEXT_CONTROL_CRYPTO_ALG_SHA224: + if (safexcel_hmac_setkey("safexcel-sha224", keys.authkey, + keys.authkeylen, &istate, &ostate)) + goto badkey; + break; + case CONTEXT_CONTROL_CRYPTO_ALG_SHA256: + if (safexcel_hmac_setkey("safexcel-sha256", keys.authkey, + keys.authkeylen, &istate, &ostate)) + goto badkey; + break; + default: + dev_err(priv->dev, "aead: unsupported hash algorithm\n"); goto badkey; + } crypto_aead_set_flags(ctfm, crypto_aead_get_flags(ctfm) & CRYPTO_TFM_RES_MASK); @@ -937,3 +949,37 @@ struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_aes = { }, }, }; + +static int safexcel_aead_sha224_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_SHA224; + ctx->state_sz = SHA256_DIGEST_SIZE; + return 0; +} + +struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_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 = SHA224_DIGEST_SIZE, + .base = { + .cra_name = "authenc(hmac(sha224),cbc(aes))", + .cra_driver_name = "safexcel-authenc-hmac-sha224-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_sha224_cra_init, + .cra_exit = safexcel_aead_cra_exit, + .cra_module = THIS_MODULE, + }, + }, +}; |