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...
Using the Diffie-Hellman Key Exchange protocol, a server and a client can securely compute a shared cryptographic key without sharing the actual secret key. Instead, they can share some shared parameters, and based on those the same secret cryptographic key can be...
Using the PyCryptodome module in Python, we can export and import DSA keys easily. DSA uses public-key cryptography. Using the DSA key generation algorithm, we can generate a keypair that consists of a private key and a public key. The private key needs to be kept...
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