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| author | Pascal van Leeuwen <pascalvanl@gmail.com> | 2019-08-30 10:52:32 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-09-05 07:37:29 +0300 |
| commit | 50485dfb6c60f63e1a42943a910c0ab670c92a25 (patch) | |
| tree | 3c8749a88e7ed14afb6417bad429a7f932e61833 /drivers/crypto/inside-secure/safexcel_cipher.c | |
| parent | 48e97afa41784c4b94e01f8605179bd49e759d03 (diff) | |
| download | linux-50485dfb6c60f63e1a42943a910c0ab670c92a25.tar.xz | |
crypto: inside-secure - Added AES-OFB support
This patch adds support for AES in output feedback mode (AES-OFB).
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/inside-secure/safexcel_cipher.c')
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel_cipher.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c index 4e06c61f9ff9..7a1e78518871 100644 --- a/drivers/crypto/inside-secure/safexcel_cipher.c +++ b/drivers/crypto/inside-secure/safexcel_cipher.c @@ -1172,6 +1172,42 @@ struct safexcel_alg_template safexcel_alg_cfb_aes = { }, }; +static int safexcel_skcipher_aes_ofb_cra_init(struct crypto_tfm *tfm) +{ + struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm); + + safexcel_skcipher_cra_init(tfm); + ctx->alg = SAFEXCEL_AES; + ctx->mode = CONTEXT_CONTROL_CRYPTO_MODE_OFB; + return 0; +} + +struct safexcel_alg_template safexcel_alg_ofb_aes = { + .type = SAFEXCEL_ALG_TYPE_SKCIPHER, + .algo_mask = SAFEXCEL_ALG_AES | SAFEXCEL_ALG_AES_XFB, + .alg.skcipher = { + .setkey = safexcel_skcipher_aes_setkey, + .encrypt = safexcel_encrypt, + .decrypt = safexcel_decrypt, + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .base = { + .cra_name = "ofb(aes)", + .cra_driver_name = "safexcel-ofb-aes", + .cra_priority = SAFEXCEL_CRA_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = 1, + .cra_ctxsize = sizeof(struct safexcel_cipher_ctx), + .cra_alignmask = 0, + .cra_init = safexcel_skcipher_aes_ofb_cra_init, + .cra_exit = safexcel_skcipher_cra_exit, + .cra_module = THIS_MODULE, + }, + }, +}; + static int safexcel_skcipher_aesctr_setkey(struct crypto_skcipher *ctfm, const u8 *key, unsigned int len) { |