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crypto: inside-secure - Forbid 2-key 3DES in FIPS mode 

This patch forbids the use of 2-key 3DES (K1 == K3) in FIPS mode.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
hifive-unleashed-5.2
Herbert Xu 2019-04-11 16:51:10 +08:00
parent 94fc2e0be0
commit 67ac62bf3d
1 changed files with 5 additions and 6 deletions
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11
drivers/crypto/inside-secure/safexcel_cipher.c
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@ -1039,13 +1039,12 @@ static int safexcel_cbc_des3_ede_decrypt(struct skcipher_request *req)
static int safexcel_des3_ede_setkey(struct crypto_skcipher *ctfm,
const u8 *key, unsigned int len)
{
struct crypto_tfm *tfm = crypto_skcipher_tfm(ctfm);
struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
struct safexcel_cipher_ctx *ctx = crypto_skcipher_ctx(ctfm);
int err;
if (len != DES3_EDE_KEY_SIZE) {
crypto_skcipher_set_flags(ctfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
err = des3_verify_key(ctfm, key);
if (unlikely(err))
return err;
/* if context exits and key changed, need to invalidate it */
if (ctx->base.ctxr_dma) {