OFB (Output Feedback)
modulename: ofb.ko
configname: CONFIG_CRYPTO_OFB
Linux Kernel Configuration
└─>Cryptographic API
└─>Length-preserving ciphers and modes
└─>OFB (Output Feedback)
In linux kernel since version 3.10 (release Date: 2013-06-30)
OFB (Output Feedback) mode (NIST SP800-38A)
This mode makes a block cipher into a synchronous
stream cipher. It generates keystream blocks, which are then XORed
with the plaintext blocks to get the ciphertext. Flipping a bit in the
ciphertext produces a flipped bit in the plaintext at the same
location. This property allows many error correcting codes to function
normally even when applied before encryption.
This mode makes a block cipher into a synchronous
stream cipher. It generates keystream blocks, which are then XORed
with the plaintext blocks to get the ciphertext. Flipping a bit in the
ciphertext produces a flipped bit in the plaintext at the same
location. This property allows many error correcting codes to function
normally even when applied before encryption.