Regenerate the Publisher Signing Key
Regenerate the Publisher signing key whenever you need to renew the Publisher signing key or create a replacement key with a specific length or expiration period. For example, you might need a signing key that expires after a defined period to meet a receiving bank’s requirements.
If Publisher still uses legacy 1024-bit signing keys, you see the following message advising you to regenerate the Publisher signing key as 2048, 3072, or 4096-bit keys.
Warning This keystore's BI Publisher PGP signing key uses DSA 1024-bit, which will not be supported in upcoming releases. To avoid PGP signing or encryption disruption, click Regenerate BI Publisher Key to regenerate it with a supported algorithm and length.
Note:
You no longer need to request assistance from Oracle Support to regenerate the Publisher signing key.