aes256Cfb1Encrypt - 2024.1 English

#include "xf_security/cfb.hpp"

static void aes256Cfb1Encrypt (
    hls::stream <ap_uint <128>>& plaintextStrm,
    hls::stream <bool>& endPlaintextStrm,
    hls::stream <ap_uint <256>>& cipherkeyStrm,
    hls::stream <ap_uint <128>>& IVStrm,
    hls::stream <ap_uint <128>>& ciphertextStrm,
    hls::stream <bool>& endCiphertextStrm
    )

aes256Cfb1Encrypt is CFB1 encryption mode with AES-256 single block cipher.

The algorithm reference is : “Recommendation for Block Cipher Modes of Operation - Methods and Techniques” The implementation is modified for better performance.

Parameters:

plaintextStrm	Input block stream text to be encrypted, each text block is 128 bits.
endPlaintextStrm	End flag of block stream plaintext, 1 bit.
cipherkeyStrm	Input cipher key used in encryption, 256 bits.
IVStrm	Initialization vector for the fisrt iteration of AES encrypition, 128 bits.
ciphertextStrm	Output encrypted block stream text, each cipher block is 128 bits.
endCiphertextStrm	End flag of block stream ciphertext, 1 bit.