Encryption Algorithms

Encryption Algorithms

1. Data Packet Encryption

   • TripleDES
     • Encrypts the data 3 times using a different key for every one iteration
     • Slow in receiving outcome
     • Mostly used within ATMs to encrypt PIN number
   • Blowfish and Twofish
     • Blowfish
       • Open source encryption algorithm for applications
       • It splits messages into blocks of 64-bits and encrypts each block individually
       • One of the fastest encryption algorithms
       • Often used for messaging passageways and/or passwords
     • Twofish
       • Similar to Blowfish, but instead it uses 128-bit blocks
   • AES - Advanced Encryption Standard
     • Uses Block Cipher
     • Supersedes DES encryption
     • One of the most popular and secure encryption algorithms
   • PGP - Pretty Good Privacy
     • Uses a combination of symmetric and public key encryption
       • Symmetric encryption (private key) is the same key being used to encrypt and decrypt a message which must be kept secure
       • Public key encryption are different keys used for encrypting and decrypting a message which can be sent over the internet
   • RSA - Rivest Shamir Adleman public key algorithm, developed by MIT used to encrypt most internet data
     • Uses a public key to encrypt it, and a private key to decrypt it
     • Uses large prime numbers and keys within encryption calculations, making it strong
     • The weakness is the slow process
     • Most likely to be used when visiting https://

2. Data Stream Encryption

   • RC4 - Wireless transmissions
   • Snow - Mobile transmissions