Saturday, March 1, 2008

Very poor encryption

Here is a story about a portable hard drive that claims to use 128-bit AES encryption, but only uses a extremely week XOR function for data security.

Thursday, February 14, 2008

RSA links

Prime Number Hide-and-Seek: How the RSA Cipher Works
RSA Algorithm
A New Vulnerability In RSA Cryptography

Book:
Schneier, Bruce (1995-10-09). Applied Cryptography. New York: Wiley, 587. ISBN 0471117099.
How e-mail encryption links to discrete math and computer science:
  • E-mail encryption
    • Encryption
      • Algorithms
        • First used: RSA
        • Others: ElGamal, DES, AES, 3DES, Blowfish, Twofish, CAST5, MD5, SHA-1, RIPE-MD-160 and TIGER
    • Networks
      • Graph Theory

Thursday, February 7, 2008

An overview of e-mail privacy problems(Wikipedia).

The problem with taking your passwords to your grave.

How to tell if the NSA is reading your e-mail.

Secure / Multipurpose Internet Mail Extensions (S/MIME), an overview of the protocol used to encapsulate an encrypted/signed message in an e-mail.

Thursday, January 31, 2008

PGP e-mail encryption

Philip Zimmerman

A description of PGP (Pretty Good Privacy), an e-mail encryption program created by Philip Zimmerman. This program originally used the RSA encryption algorithm, described on page 626-629 of the text book.

GnuPG, an open source clone of PGP.
Decrypting the cryptography circuit on the Mifare RFID chip: video link.