Tadeusz Struk wrote:
> On 05/03/2016 07:26 PM, Jamie Heilman wrote:
> >>> Alrighty, presumably relevant bits:
> >>> > >
> >>> > > X.509: Cert Issuer: Build time autogenerated kernel key
> >>> > > X.509: Cert Subject: Build time autogenerated kernel key
> >>> > > X.509: Cert Key Algo: rsa
> >>> > > X.509: Cert Valid period: 1461826791-4615426791
> >>> > > X.509: Cert Signature: rsa + sha512
> >>> > > X.509: ==>x509_check_signature()
> >>> > > X.509: ==>x509_get_sig_params()
> >>> > > X.509: <==x509_get_sig_params() = 0
> >>> > > PKEY: ==>public_key_verify_signature()
> >>> > > X.509: Cert Verification: -2
> >> >
> >> > Hmmm... Okay, the only ways out of public_key_verify_signature() without
> >> > printing a leaving message are for snprintf() to overrun (which would
> >> > return
> >> > error -22) or for crypto_alloc_akcipher() to have failed; everything
> >> > else must
> >> > go through the kleave() at the pr_devel() at the bottom of the function.
> >> >
> >> > Can you stick:
> >> >
> >> > pr_devel("ALGO: %s\n", alg_name);
> >> >
> >> > immediately before this line:
> >> >
> >> > tfm = crypto_alloc_akcipher(alg_name, 0, 0);
> >> >
> >> > and try it again?
> > PKEY: ALGO: pkcs1pad(rsa,sha512)
>
> I think the problem is that pkcs1pad template needs CRYPTO_MANAGER, but
> your configuration doesn't enable CRYPTO_MANAGER. Could you try this
> please:
>
> diff --git a/crypto/Kconfig b/crypto/Kconfig
> index 93a1fdc..1d33beb 100644
> --- a/crypto/Kconfig
> +++ b/crypto/Kconfig
> @@ -96,6 +96,7 @@ config CRYPTO_AKCIPHER
> config CRYPTO_RSA
> tristate "RSA algorithm"
> select CRYPTO_AKCIPHER
> + select CRYPTO_MANAGER
> select MPILIB
> select ASN1
> help
Yep, that does indeed make everything work again.
--
Jamie Heilman http://audible.transient.net/~jamie/
