Could not open private key' found, cause: org.bouncycastle.openpgp.PGPException: checksum mismatch at 0 of 20

Hi Guys,

I am trying to use the standard PGP encryption module in PI 7.4 single stack. I have already updated the JCE policy files and now all key sizes are acceptable. Encryption is successful with "partner's public key ". But when I am trying to sign it with the private key generated from PI, I get the below error .

Could not open private key' found, cause: org.bouncycastle.openpgp.PGPException: checksum mismatch at 0 of 20

If someone can provide more information on this issue, it would be of great help.