Am Montag, 2. Mai 2016, 11:14:01 schrieb Gadre Nayan:
Hi Gadre,
> Hello,
>
> I have read the crypto library documentation on chronox.de.
>
> I used there sample code for symmetric key cipher operation.
> However in the check:
>
> skcipher = crypto_alloc_skcipher("cbc-aes-aesni", 0, 0);
> if (IS_ERR(skcipher)) {
> pr_info("could not allocate skcipher handle\n");
> return PTR_ERR(skcipher);
> }
>
> I get could not allocate skcipher handle.
>
> I have loaded all possible related modules for crypto:
> lsmod (relevant):
> algif_skcipher 32768 0
> algif_hash 20480 0
> algif_aead 20480 0
> af_alg 24576 3 algif_aead,algif_hash,algif_skcipher
> cryptd
> ablk_helper.
>
> What am I missing here?
>
> Also IS_ERR checks if the skcipher value may be <1000, it may include
> the NULL check right?.
The allocation of the cipher failed. Please check /proc/crypto whether you
have the cipher registered with the kernel crypto API.
The module listing does not show the AESNI cipher module.
Ciao
Stephan
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