topic Can't Generate RSA Keys in Network Security

Can't Generate RSA Keys

Hamood Rehman — Tue, 12 Mar 2019 00:59:13 GMT

ASA5510, Can't generate RSA keys, so can't SSH:

Any ideas?

ASAXXX(config)# crypto key generate rsa general-keys modulus 1024

INFO: The name for the keys will be: <Default-RSA-Key>

Keypair generation process begin. Please wait...

% Attempt to generate RSA keys failed:

Thanks,

mwinnett — Sat, 16 Feb 2013 11:39:54 GMT

Might be defect CSCtb58989 (fixed in 8.2(2.3))

Symptom:

ASDM fails to load on ASA 8.2, due to no available DMA memory.

This issue occurs if logging is enabled along with crypto tunnels.

Conditions:

Logging is enabled.

Crypto (IPSec, SSL) is also enabled.

Workaround:

Downgrade ASA to 8.0.x or configure the logging queue to a value of 512. After

restoring the logging queue to default, need to reload the box to reclaim DMA

memory.

Matthew

nkarthikeyan — Mon, 18 Feb 2013 16:18:46 GMT

Hi Hamood,

Can you try all other ways of generating the keys.....

crypto key generate rsa modulus 2048 and few other ways to create the key.....

before that do crypto key zeroize rsa command and then do create the key

Karthik

Please do rate if the given information helps.