The simplest mode encrypts and decrypts each 128-bit block separately. One key decrypts a plaintext, while the other encrypts it. This layer defines and encrypts/decrypts data types from the application layer. That makes the encryptor (receiver) unaware of whether it encrypts or decrypts the key. The recipients retrieve the encrypted data and decrypts it themselves. A hard-coded 128-bit key decrypts embedded content. The recipient then decrypts the public key message to recover the symmetric key. The server decrypts the data, and then redirects it to the destination host and port. Finally, airdecap-ng decrypts all packets that were captured. The first 25 decrypts were very short messages or partial decrypts of marginal intelligence value. TULIP and KANT appear in nearly two dozen Venona decrypts. Furthermore, decrypts from , eventually called MAGIC, were poorly distributed and used in Washington. The player decrypts and presents the audio and visual content of the feature. Foremost amongst the knowledge needed for identifying cribs was the text of previous decrypts. Cairncross first in Hut 3, then later at MI6 HQ, had access to raw decrypts.