What is the Caesar Cipher? Caesar cipher is a widely known historical cipher. In this cipher, each letter from plaintext is replaced with another letter. And, the key determines how many positions down the alphabet the plaintext letter will be shifted. In other words,...
HMAC or Hash-based Message Authentication Code is used for verifying the data integrity and the authenticity of a message. It uses symmetric key cryptography. Using a hash algorithm and a symmetric secret key a Message Authentication Code or MAC is generated. The MAC...
HMAC or Hash-based Message Authentication Code is a type of Message Authentication Code (MAC) using which we can verify the data integrity and the authenticity of a message. HMAC involves a hash function and a symmetric secret key. Using the hash function and the...
Using a cryptographic hash function, one can compute a fixed-length message hash from a message of any length. A good cryptographic hash function has the following properties: If we hash the same message, again and again, the hash function will always generate the...
In this article, we would implement the Diffie-Hellman Key Exchange algorithm in Python. In the last article, we explained how to implement the Diffie-Hellman Key Exchange algorithm using the pyDHE Python library. But, in this article, we would not use any Python...
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