Implement needham-schroeder symmetric key protocol both

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Implement Needham-Schroeder symmetric key protocol, both original version and fixed version using python.

The term Needham-Schroeder protocol may refer to one of the two communication protocols intended for use over an insecure network, both proposed by Michael Schroeder and Roger Needham.

These are:

The Needham-Schroeder Symmetric Key Protocol is based on a symmetric encryption algorithm. It forms the basis for the Kerberos protocol. This protocol aims to start a session key between two parties on a network, classically to protect further communication.

The Needham-Schroeder Public-Key Protocol, based on public-key cryptography. This protocol is intended to give mutual authentication between two parties communicating on a network, but in its proposed form is insecure.

Reference no: EM13350549

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