Cannot find any provider supporting AES/GCM/PKCS5Padding after upgrading to bc-fips 2.0.0 and java 21

[buhalbot]

Hello,
Can someone help me with this error I just received?

Caused by: javax.crypto.NoSuchPaddingException: PKCS5PADDING not found
at org.bouncycastle.jcajce.provider.BaseCipher.engineSetPadding(Unknown Source)
at java.base/javax.crypto.Cipher$Transform.setModePadding(Unknown Source)

I am using AES/GCM/PKCS5Padding. This seemed to work just fine on Java11 with bc-fips 1.0.2.4.

[peterdettman]

PKCS5Padding doesn't make sense with AES/GCM - just use "AES/GCM" (or "AES/GCM/NOPADDING" should work). I assume the earlier provider was ignoring this unnecessary padding spec, while the 2.0.0 version is being more strict.

[buhalbot]

Thank you! Already made the change with NoPadding and it works.