[CAMEL-7192] PGPDataFormat: Sub-Key not supported for signing and correct selection of encryption/signing key via KeyFlag

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.12.2
• Fix Version/s: 2.12.3, 2.13.0
• Component/s: camel-crypto
• Patch Info: Patch Available
• Estimated Complexity: Unknown
• Assignee: Willem Jiang
• Reporter: Franz Forsthofer
• Created: 11/Feb/14 12:06
• Updated: 13/Feb/14 09:43
• Resolved: 12/Feb/14 09:59

Description

A PGP key ring with version 4 keys typically consists of a primary key which has sub-keys. There is a use-case where the primary key has only the usage flag (KeyFlag) "certify" and one sub-key is makred with the usage flag "signing" and the other sub-key is marked with usage flag"encryption". In this case the PGPDataFormat does not use the correct sub-key for signing and encryption.

In the patch I enabled the usage of sub-keys for the signing process and I introduced the usage flag (KeyFlag) for finding the correct keys for signing and encryption.