diff options
Diffstat (limited to 'drivers/crypto/atmel-tdes.c')
| -rw-r--r-- | drivers/crypto/atmel-tdes.c | 106 |
1 files changed, 10 insertions, 96 deletions
diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c index 65bf1a299562..fa76620281e8 100644 --- a/drivers/crypto/atmel-tdes.c +++ b/drivers/crypto/atmel-tdes.c @@ -800,20 +800,14 @@ static int atmel_tdes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, unsigned int keylen) { struct atmel_tdes_ctx *ctx = crypto_ablkcipher_ctx(tfm); - const char *alg_name; - - alg_name = crypto_tfm_alg_name(crypto_ablkcipher_tfm(tfm)); + u32 flags; + int err; - /* - * HW bug in cfb 3-keys mode. - */ - if (!ctx->dd->caps.has_cfb_3keys && strstr(alg_name, "cfb") - && (keylen != 2*DES_KEY_SIZE)) { - crypto_ablkcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); - return -EINVAL; - } else if ((keylen != 2*DES_KEY_SIZE) && (keylen != 3*DES_KEY_SIZE)) { - crypto_ablkcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); - return -EINVAL; + flags = crypto_ablkcipher_get_flags(tfm); + err = __des3_verify_key(&flags, key); + if (unlikely(err)) { + crypto_ablkcipher_set_flags(tfm, flags); + return err; } memcpy(ctx->key, key, keylen); @@ -1060,7 +1054,7 @@ static struct crypto_alg tdes_algs[] = { .cra_module = THIS_MODULE, .cra_init = atmel_tdes_cra_init, .cra_u.ablkcipher = { - .min_keysize = 2 * DES_KEY_SIZE, + .min_keysize = 3 * DES_KEY_SIZE, .max_keysize = 3 * DES_KEY_SIZE, .setkey = atmel_tdes_setkey, .encrypt = atmel_tdes_ecb_encrypt, @@ -1079,7 +1073,7 @@ static struct crypto_alg tdes_algs[] = { .cra_module = THIS_MODULE, .cra_init = atmel_tdes_cra_init, .cra_u.ablkcipher = { - .min_keysize = 2*DES_KEY_SIZE, + .min_keysize = 3*DES_KEY_SIZE, .max_keysize = 3*DES_KEY_SIZE, .ivsize = DES_BLOCK_SIZE, .setkey = atmel_tdes_setkey, @@ -1088,86 +1082,6 @@ static struct crypto_alg tdes_algs[] = { } }, { - .cra_name = "cfb(des3_ede)", - .cra_driver_name = "atmel-cfb-tdes", - .cra_priority = 100, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = DES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct atmel_tdes_ctx), - .cra_alignmask = 0x7, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = atmel_tdes_cra_init, - .cra_u.ablkcipher = { - .min_keysize = 2*DES_KEY_SIZE, - .max_keysize = 2*DES_KEY_SIZE, - .ivsize = DES_BLOCK_SIZE, - .setkey = atmel_tdes_setkey, - .encrypt = atmel_tdes_cfb_encrypt, - .decrypt = atmel_tdes_cfb_decrypt, - } -}, -{ - .cra_name = "cfb8(des3_ede)", - .cra_driver_name = "atmel-cfb8-tdes", - .cra_priority = 100, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = CFB8_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct atmel_tdes_ctx), - .cra_alignmask = 0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = atmel_tdes_cra_init, - .cra_u.ablkcipher = { - .min_keysize = 2*DES_KEY_SIZE, - .max_keysize = 2*DES_KEY_SIZE, - .ivsize = DES_BLOCK_SIZE, - .setkey = atmel_tdes_setkey, - .encrypt = atmel_tdes_cfb8_encrypt, - .decrypt = atmel_tdes_cfb8_decrypt, - } -}, -{ - .cra_name = "cfb16(des3_ede)", - .cra_driver_name = "atmel-cfb16-tdes", - .cra_priority = 100, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = CFB16_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct atmel_tdes_ctx), - .cra_alignmask = 0x1, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = atmel_tdes_cra_init, - .cra_u.ablkcipher = { - .min_keysize = 2*DES_KEY_SIZE, - .max_keysize = 2*DES_KEY_SIZE, - .ivsize = DES_BLOCK_SIZE, - .setkey = atmel_tdes_setkey, - .encrypt = atmel_tdes_cfb16_encrypt, - .decrypt = atmel_tdes_cfb16_decrypt, - } -}, -{ - .cra_name = "cfb32(des3_ede)", - .cra_driver_name = "atmel-cfb32-tdes", - .cra_priority = 100, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, - .cra_blocksize = CFB32_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct atmel_tdes_ctx), - .cra_alignmask = 0x3, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = atmel_tdes_cra_init, - .cra_u.ablkcipher = { - .min_keysize = 2*DES_KEY_SIZE, - .max_keysize = 2*DES_KEY_SIZE, - .ivsize = DES_BLOCK_SIZE, - .setkey = atmel_tdes_setkey, - .encrypt = atmel_tdes_cfb32_encrypt, - .decrypt = atmel_tdes_cfb32_decrypt, - } -}, -{ .cra_name = "ofb(des3_ede)", .cra_driver_name = "atmel-ofb-tdes", .cra_priority = 100, @@ -1179,7 +1093,7 @@ static struct crypto_alg tdes_algs[] = { .cra_module = THIS_MODULE, .cra_init = atmel_tdes_cra_init, .cra_u.ablkcipher = { - .min_keysize = 2*DES_KEY_SIZE, + .min_keysize = 3*DES_KEY_SIZE, .max_keysize = 3*DES_KEY_SIZE, .ivsize = DES_BLOCK_SIZE, .setkey = atmel_tdes_setkey, |