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crypto: marvell - 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>
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1 changed files with 5 additions and 6 deletions
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@ -299,13 +299,12 @@ static int mv_cesa_des_setkey(struct crypto_skcipher *cipher, const u8 *key,
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static int mv_cesa_des3_ede_setkey(struct crypto_skcipher *cipher,
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const u8 *key, unsigned int len)
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{
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struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
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struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(tfm);
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struct mv_cesa_des_ctx *ctx = crypto_skcipher_ctx(cipher);
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int err;
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if (len != DES3_EDE_KEY_SIZE) {
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crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
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return -EINVAL;
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}
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err = des3_verify_key(cipher, key);
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if (unlikely(err))
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return err;
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memcpy(ctx->key, key, DES3_EDE_KEY_SIZE);
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