First available in the Oracle GoldenGate 11g Release 2, encryption is governed by one of the following four supported algorithms that use 64-, 128-, 192-, and 256-bit cypher keys:
AES128 uses the AES-128 cipher with a key size of 128 bits
AES192 uses the AES-192 cipher with a key size of 192 bits
AES256 uses the AES-256 cipher with a key size of 256 bits
Blowfish uses a symmetric 64-bit block size and a variable length key size from 32 bits to 128 bits
Advanced Encryption Security (AES) has been adopted as an industry standard and offers stronger encryption over the deprecated Blowfish algorithm that should no longer be used. However, it is still supported to maintain backward compatibility.
The AES cypher keys can be configured by two possible methods:
The wallet method
The ENCKEYS method