Jenkins Password Decryptor

You will need the following files from within the Jenkins home directory:

master.key
hudson.util.Secret
credentials.xml or a secret ciphertext which looks like base64 surrounded with {}

Decrypt secrets in credentials.xml

This will decrypyt secrets of the following types

Others can easily be added if you add the appropriate code to extract the secret type from the XML.

./decrypt.py path/to/master.key path/to/hudson.util.Secret path/to/credentials.xml

./decrypt.py path/to/master.key path/to/hudson.util.Secret '{ciphertext}'