Hi Stephan,
If I understand this correctly, this (CONFIG_MODULE_SIG_HASH=“sha256")
tells about the key size used.
I am using “sha256”. Initially, I was using “sha512” which I thought could
be causing problem, but I am getting same error when change it to
“sha256”.
[root@localhost ~]# grep MODULE_SIG /boot/config-4.7.0-1.tos2_5
CONFIG_MODULE_SIG=y
# CONFIG_MODULE_SIG_FORCE is not set
CONFIG_MODULE_SIG_ALL=y
# CONFIG_MODULE_SIG_SHA1 is not set
# CONFIG_MODULE_SIG_SHA224 is not set
CONFIG_MODULE_SIG_SHA256=y
# CONFIG_MODULE_SIG_SHA384 is not set
# CONFIG_MODULE_SIG_SHA512 is not set
CONFIG_MODULE_SIG_HASH="sha256"
CONFIG_MODULE_SIG_KEY="certs/signing_key.pem"
Thanks
-Tapas
On 8/9/16, 9:29 AM, "Stephan Mueller" <smueller@xxxxxxxxxx> wrote:
>Am Dienstag, 9. August 2016, 14:10:33 CEST schrieb Tapas Sarangi:
>
>Hi Tapas,
>
>> Hello,
>>
>> I am using vanilla kernel-4.7 source. It crashes with the following when
>> booted with ³fips=1 boot=/dev/sda1² option at the kernel command line
>> argument.
>
>The kernel only allows 2k and 3k RSA keys in FIPS mode. Please check your
>RSA
>key used for signatures.
>
> /* In FIPS mode only allow key size 2K & 3K */
> if (n_sz != 256 && n_sz != 384) {
> pr_err("RSA: key size not allowed in FIPS
>mode\n");
> return -EINVAL;
> }
>
>Ciao
>Stephan
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