Re: [PATCH RESEND v5 0/6] crypto: algif - add akcipher

David Howells
2016-05-11T14:25:28Z

Tadeusz Struk <tadeusz.struk@intel.com> wrote:

> This is the same v5 version as before rebased on top of
> http://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git/log/?h=keys-asym-keyctl

I've just reposted this. The interface you're using should be the same, I
think, but the details underneath have changed.

Also, you can now supply private keys to the kernel if they're PKCS#8 encoded
and keyctls are supplied that do encryption, decryption, signing and
verifying, e.g.:

j=`openssl pkcs8 -in ~/pkcs7/firmwarekey2.priv -topk8 -nocrypt -outform DER | \
keyctl padd asymmetric foo @s`
echo -n abcdefghijklmnopqrst >/tmp/data
keyctl pkey_encrypt $j 0 /tmp/data enc=pkcs1 >/tmp/enc
keyctl pkey_decrypt $j 0 /tmp/enc enc=pkcs1 >/tmp/dec
cmp /tmp/data /tmp/dec
keyctl pkey_sign $j 0 /tmp/data enc=pkcs1 hash=sha1 >/tmp/sig
keyctl pkey_verify $j 0 /tmp/data /tmp/sig enc=pkcs1 hash=sha1

David