asn1.py 文件源码

def _lengthOctets(self, payloadLen):
                """Return a byte string that encodes the given payload length (in
                bytes) in a format suitable for a DER length tag (L).
                """
                if payloadLen>127:
                        encoding = long_to_bytes(payloadLen)
                        return bchr(len(encoding)+128) + encoding
                return bchr(payloadLen)