xchacha20 - 2023.2 English

Vitis Libraries
Release Date
2023-12-20
Version
2023.2 English
#include "xf_security/chacha20.hpp"

void xchacha20 (
    hls::stream <ap_uint <256>>& keyStrm,
    hls::stream <ap_uint <192>>& nonceStrm,
    hls::stream <ap_uint <512>>& plainStrm,
    hls::stream <bool>& ePlainStrm,
    hls::stream <ap_uint <512>>& cipherStrm,
    hls::stream <bool>& eCipherStrm
    )

xchahcha20 is variant of original chacha20 to support longer nonce of 192bits.

Parameters:

keyStrm initail key
nonceStm initial nonce
plainStrm input plain text to be encrypted
ePlainStrm the end flag of plainStrm
cipherStrm output encrypted text
eCipherStrm the end flag of cipherStrm