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A simple example of polyalphabetic cipher in Java.
Cryptography fascinates everyone. A variety of encryption techniques and ciphers are used to code important data.
A polyalphabetic cipher is one of the simplest cipher one can make. This is a Java program to implement polyalphabetic cipher.
[How the cipher encodes?]
Input Data: helloaf
Key: love
l - 12th letter in Alphabet
o - 15th letter in Alphabet
v - 22nd letter in Alphabet
e - 5th letter in Alphabet
Now:
h(l) e(o) l(v) l(e) o(l) a(o) f(v)
Further:
h(+12)...
Universal password generator. This program generates password for each account you want from hostname, username and one global password (passkey, master password, skeleton key). So you need to remember only one password.
S/Key Generator. An RFC2289 compliant One-Time Password generator written in Java language and O.S. Thinlet package for GUI.
It uses MD4 and MD5 hash algorithms.
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S/Key - OTP Generator for J2ME architecture. An RFC2289 compliant One-Time Password generator for mobile phone supporting Java language. It uses MD4 and MD5 hash algorithms.