[NIFI-5346] Allow EncryptContent processor to specify PGP key as processor property

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.0
• Fix Version/s: 1.14.0
• Component/s: Extensions
• Labels: encryption pgp security
• Assignee: David Handermann
• Reporter: Andy LoPresto
• Created: 28/Jun/18 00:23
• Updated: 11/May/21 00:06
• Resolved: 22/Apr/21 20:34

Description

Users have requested the capability to paste the ASCII-armored key contents into an EncryptContent processor property in order to decouple from from an external keyring (for both encryption and decryption).

The private key would be protected as a sensitive property (encrypted in the flow.xml.gz the same as a password field). The public key can either be protected in the same way, or treated as a plaintext value (it is not sensitive). There should be an additional field to record the unique identifier of the respective key (i.e. key ID or fingerprint + description).

Specifying all of this information may be confusing on the default processor property dialog, and so an "Advanced"/"PGP" custom UI should be provided which organizes this information in a helpful way.

Obviously, encrypting with a literal public key or decrypting with a literal private key should be easily interoperable with another encryption/decryption operation (either with another instance of EncryptContent within NiFi referencing an external keyring or using an external tool like GnuPG).

Issue Links

• is depended upon by: NIFI-7322 Add SignContentPGP and VerifyContentPGP Processors
• is depended upon by: NIFI-7396 Add encryption metadata attributes for PGP encryption
• is fixed by: NIFI-8251 Add Encrypt and Decrypt PGP Processors and Services
• is related to: NIFI-5335 PGP processor cannot handle multiple passworded keys in a pgp keyring.
• is related to: NIFI-6708 Improve DSA/El Gamal PGP compatibility issues
• is related to: NIFI-1694 EncryptContent processor should accept keyring file or individual key file for PGP encryption/decryption
• relates to: NIFI-7836 Add Encrypt and Decrypt CMS Processors and Services
• links to: GitHub Pull Request #4032
• links to: GitHub Pull Request #4077