aes128OfbEncrypt - 2023.1 English

#include "xf_security/ofb.hpp"

static void aes128OfbEncrypt (
    hls::stream <ap_uint <128>>& plaintextStrm,
    hls::stream <bool>& endPlaintextStrm,
    hls::stream <ap_uint <128>>& cipherkeyStrm,
    hls::stream <ap_uint <128>>& IVStrm,
    hls::stream <ap_uint <128>>& ciphertextStrm,
    hls::stream <bool>& endCiphertextStrm
    )

aes128OfbEncrypt is OFB encryption mode with AES-128 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 block is 128 bits.
endPlaintextStrm	End flag of block stream plaintext, 1 bit.
cipherkeyStrm	Input cipher key used in encryption, 128 bits.
IVStrm	Initialization vector for the fisrt iteration of AES encrypition, 128 bits.
ciphertextStrm	Output encrypted block stream text, each block is 128 bits.
endCiphertextStrm	End flag of block stream ciphertext, 1 bit.