Function SMB2computePreauthIntegrityHashValue

scapy/layers/smb2.py:4687–4696

Update the PreauthIntegrityHashValue

(
    PreauthIntegrityHashValue, s, HashId="SHA-512"
)

def SMB2computePreauthIntegrityHashValue(
    PreauthIntegrityHashValue, s, HashId="SHA-512"
):
    """
    Update the PreauthIntegrityHashValue
    """
    # get hasher
    hasher = {"SHA-512": hashlib.sha512}[HashId]
    # compute the hash of concatenation of previous and bytes
    return hasher(PreauthIntegrityHashValue + s).digest()


# SMB2 socket and session