The purpose of this issue is to create new Processors and Controller Services to perform encrypt and decrypt functions according to the OpenPGP specification defined in RFC 4880. This functionality is implemented in the `EncryptContent` Processor, but the current approach is difficult to configure and troubleshoot in some cases.
The new Controller Services should encapsulate management of keys and keyrings to improve performance and provide better error handling. New Controller Services would also support building additional Processors for signing and verifying PGP messages as requested in
NIFI-7322. Separating encrypt and decrypt content functions into distinct Processors will provide a clearer distinction between the properties necessary for configuration.
The implementation of these Processors and Controller Services should address the issues described in the following issues: