cert.py 文件源码

def pkcs_os2ip(x):
    """
    Accepts a byte string as input parameter and return the associated long
    value:

    Input : x        octet string to be converted

    Output: x        corresponding nonnegative integer

    Reverse function is pkcs_i2osp()
    """
    return number.bytes_to_long(x) 

# IP2OS function defined in RFC 3447 for octet string to integer conversion