## hmac – Keyed-Hashing for Message Authentication

HMAC is a mechanism for message authentication using cryptographic hash functions. HMAC can be used with any iterative cryptographic hash function, e.g., MD5, SHA-1, in… Read More »

- Playfair Cipher with Examples
- Difference between Confusion and Diffusion
- Vernam Cipher in Cryptography
- Cryptography and its Types
- Hamming code Implementation in Java
- Bifid Cipher in Cryptography
- Program to find the Encrypted word
- Difference between MD5 and SHA1
- Encryption, Its Algorithms And Its Future
- A Model for Network Security
- Voice Biometric Technique in Network Security
- Message Digest in Information security

HMAC is a mechanism for message authentication using cryptographic hash functions. HMAC can be used with any iterative cryptographic hash function, e.g., MD5, SHA-1, in… Read More »

A null cipher, also known as concealment cipher, is an ancient form of encryption where the plaintext is mixed with a large amount of non-cipher… Read More »

Onion routing is a technique for anonymous communication over a computer network. In an onion network, messages are encapsulated in layers of encryption, analogous to… Read More »

Parity of a number refers to whether it contains an odd or even number of 1-bits. The number has “odd parity”, if it contains odd… Read More »

A keyword cipher is a form of monoalphabetic substitution. A keyword is used as the key, and it determines the letter matchings of the cipher… Read More »

Bacon’s cipher or the Baconian cipher is a method of steganography (a method of hiding a secret message as opposed to just a cipher) devised… Read More »

Definition: Atbash cipher is a substitution cipher with just one specific key where all the letters are reversed that is A to Z and Z… Read More »

ROT13 cipher(read as – “rotate by 13 places”) is a special case of the Ceaser cipher in which the shift is always 13. So every… Read More »

We have introduced and discussed importance of hashed passwords. To create strong hashed passwords, we must understand some terminology related to it and then we… Read More »

Given a plain-text message and a numeric key, cipher/de-cipher the given text using Columnar Transposition Cipher The Columnar Transposition Cipher is a form of transposition… Read More »

filter_none edit close play_arrow link brightness_4 code # Write Python3 code here from decimal import Decimal def gcd(a,b): if b==0: return a else: return… Read More »

The Affine cipher is a type of monoalphabetic substitution cipher, wherein each letter in an alphabet is mapped to its numeric equivalent, encrypted using a… Read More »

Encryption – Process of converting electronic data into another form, called cipher text, which cannot be easily understood by anyone except the authorized parties.This assures… Read More »

Given a plain-text message and a numeric key, cipher/de-cipher the given text using Rail Fence algorithm. The rail fence cipher (also called a zigzag cipher)… Read More »

XOR Encryption is an encryption method used to encrypt data and is hard to crack by brute-force method, i.e generating random encryption keys to match… Read More »