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Re: [Qemu-block] [PATCH for-2.4] crypto: Fix aes_decrypt_wrapper()


From: Daniel P. Berrange
Subject: Re: [Qemu-block] [PATCH for-2.4] crypto: Fix aes_decrypt_wrapper()
Date: Fri, 17 Jul 2015 18:50:31 +0100
User-agent: Mutt/1.5.23 (2014-03-12)

On Fri, Jul 17, 2015 at 07:48:20PM +0200, Kevin Wolf wrote:
> Commit d3462e3 broke qcow2's encryption functionality by using encrypt
> instead of decrypt in the wrapper function it introduces. This was found
> by qemu-iotests case 134.
> 
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>  crypto/cipher-nettle.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/crypto/cipher-nettle.c b/crypto/cipher-nettle.c
> index a55a8e8..b01cb1c 100644
> --- a/crypto/cipher-nettle.c
> +++ b/crypto/cipher-nettle.c
> @@ -47,7 +47,7 @@ static void aes_encrypt_wrapper(cipher_ctx_t ctx, 
> cipher_length_t length,
>  static void aes_decrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,
>                                  uint8_t *dst, const uint8_t *src)
>  {
> -    aes_encrypt(ctx, length, dst, src);
> +    aes_decrypt(ctx, length, dst, src);
>  }
>  
>  static void des_encrypt_wrapper(cipher_ctx_t ctx, cipher_length_t length,

  Reviewed-by: Daniel P. Berrange <address@hidden>

Glad I added the iotest 134 for encrypted qcow :-)

Regards,
Daniel
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