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| author |   Pascal van Leeuwen <pascalvanl@gmail.com> | 2019-08-30 09:52:31 +0200 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2019-09-05 14:37:29 +1000 |
| commit | 48e97afa41784c4b94e01f8605179bd49e759d03 (patch) | |
| tree | e786207ea77ba6576c427aefb96212925e840d5c | |
| parent | crypto: inside-secure - Added support for basic AES-GCM (diff) | |
| download | linux-dev-48e97afa41784c4b94e01f8605179bd49e759d03.tar.xz linux-dev-48e97afa41784c4b94e01f8605179bd49e759d03.zip | |
crypto: inside-secure - Added AES-CFB support
This patch adds support for AES in 128 bit cipher feedback mode (AES-CFB).
Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.c | 1 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel.h | 2 | ||||
| -rw-r--r-- | drivers/crypto/inside-secure/safexcel_cipher.c | 36 |
3 files changed, 39 insertions, 0 deletions
diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 46cdcbeb122b..3196cb30e1b5 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -981,6 +981,7 @@ static struct safexcel_alg_template *safexcel_algs[] = { &safexcel_alg_cbc_des3_ede, &safexcel_alg_ecb_aes, &safexcel_alg_cbc_aes, + &safexcel_alg_cfb_aes, &safexcel_alg_ctr_aes, &safexcel_alg_md5, &safexcel_alg_sha1, diff --git a/drivers/crypto/inside-secure/safexcel.h b/drivers/crypto/inside-secure/safexcel.h index c6f93ec88c84..6f781ed1f0a5 100644 --- a/drivers/crypto/inside-secure/safexcel.h +++ b/drivers/crypto/inside-secure/safexcel.h @@ -336,6 +336,7 @@ struct safexcel_context_record { /* control1 */ #define CONTEXT_CONTROL_CRYPTO_MODE_ECB (0 << 0) #define CONTEXT_CONTROL_CRYPTO_MODE_CBC (1 << 0) +#define CONTEXT_CONTROL_CRYPTO_MODE_CFB (5 << 0) #define CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD (6 << 0) #define CONTEXT_CONTROL_CRYPTO_MODE_XTS (7 << 0) #define CONTEXT_CONTROL_CRYPTO_MODE_XCM ((6 << 0) | BIT(17)) @@ -767,6 +768,7 @@ extern struct safexcel_alg_template safexcel_alg_ecb_des3_ede; extern struct safexcel_alg_template safexcel_alg_cbc_des3_ede; extern struct safexcel_alg_template safexcel_alg_ecb_aes; extern struct safexcel_alg_template safexcel_alg_cbc_aes; +extern struct safexcel_alg_template safexcel_alg_cfb_aes; extern struct safexcel_alg_template safexcel_alg_ctr_aes; extern struct safexcel_alg_template safexcel_alg_md5; extern struct safexcel_alg_template safexcel_alg_sha1; diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c index 7091b6086e2e..4e06c61f9ff9 100644 --- a/drivers/crypto/inside-secure/safexcel_cipher.c +++ b/drivers/crypto/inside-secure/safexcel_cipher.c @@ -1136,6 +1136,42 @@ struct safexcel_alg_template safexcel_alg_cbc_aes = { }, }; +static int safexcel_skcipher_aes_cfb_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_CFB; + return 0; +} + +struct safexcel_alg_template safexcel_alg_cfb_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 = "cfb(aes)", + .cra_driver_name = "safexcel-cfb-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_cfb_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) { |