Esempio n. 1
0
def createRC4(key, IV, implList=None):
    """Create a new RC4 object.

    @type key: str
    @param key: A 16 to 32 byte string.

    @type IV: object
    @param IV: Ignored, whatever it is.

    @rtype: L{tlslite.utils.RC4}
    @return: An RC4 object.
    """
    if implList is None:
        implList = ["openssl", "pycrypto", "python"]

    if len(IV) != 0:
        raise AssertionError()
    for impl in implList:
        if impl == "openssl" and cryptomath.m2cryptoLoaded:
            return openssl_rc4.new(key)
        elif impl == "pycrypto" and cryptomath.pycryptoLoaded:
            return pycrypto_rc4.new(key)
        elif impl == "python":
            return python_rc4.new(key)
    raise NotImplementedError()
Esempio n. 2
0
def createRC4(key, IV, implList=None):
    """Create a new RC4 object.

    @type key: str
    @param key: A 16 to 32 byte string.

    @type IV: object
    @param IV: Ignored, whatever it is.

    @rtype: L{tlslite.utils.RC4}
    @return: An RC4 object.
    """
    if implList is None:
        implList = ["openssl", "pycrypto", "python"]

    if len(IV) != 0:
        raise AssertionError()
    for impl in implList:
        if impl == "openssl" and cryptomath.m2cryptoLoaded:
            return openssl_rc4.new(key)
        elif impl == "pycrypto" and cryptomath.pycryptoLoaded:
            return pycrypto_rc4.new(key)
        elif impl == "python":
            return python_rc4.new(key)
    raise NotImplementedError()