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dS)afRIPEMD-160 cryptographic hash algorithm.

RIPEMD-160_ produces the 160 bit digest of a message.

    >>> from Crypto.Hash import RIPEMD
    >>>
    >>> h = RIPEMD.new()
    >>> h.update(b'Hello')
    >>> print h.hexdigest()

RIPEMD-160 stands for RACE Integrity Primitives Evaluation Message Digest
with a 160 bit digest. It was invented by Dobbertin, Bosselaers, and Preneel.

This algorithm is considered secure, although it has not been scrutinized as
extensively as SHA-1. Moreover, it provides an informal security level of just
80bits.

.. _RIPEMD-160: http://homes.esat.kuleuven.be/~bosselae/ripemd160.html
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cCst��|�S)aReturn a fresh instance of the hash object.

    :Parameters:
       data : byte string
        The very first chunk of the message to hash.
        It is equivalent to an early call to `RIPEMD160Hash.update()`.
        Optional.

    :Return: A `RIPEMD160Hash` object
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