CFB (Cipher Feedback)

modulename: cfb.ko

configname: CONFIG_CRYPTO_CFB

Linux Kernel Configuration
└─>Cryptographic API
└─>Length-preserving ciphers and modes
└─>CFB (Cipher Feedback)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
CFB (Cipher Feedback) mode (NIST SP800-38A)

This block cipher mode is required for TPM2 Cryptography.

source code:
crypto/cfb.c

depends
CONFIG_CRYPTO