Encryption Library and Migrating Servers

[eluser]codejedi[/eluser]
I recently migrated a client's website to a new server. I use the Encryption library to encrypt data that's stored in a MySQL database. After the migration to the new server, the decryption of the data now fails, returning garbage characters. I use the encryption key stored in the config.php file, so the key hasn't arbitrarily changed. Has anyone encountered a situation like this?