AES (Advanced Encryption Standard) JavaScript implementation in Counter Mode | Movable Type Scripts
AES Advanced Encryption Standard AES is a ‘symmetric block cipher’ for encrypting texts which can be decrypted with the original encryption key. For many purposes, a simpler encryption algorithm such as TEA is perfectly adequate – but if you suspect the world’s best cryptographic minds, and a few million dollars of computing resource, might be attempting to crack your security, then AES, based on
SHA-1 Cryptographic Hash Algorithm implemented in JavaScript | Movable Type Scripts
A cryptographic hash (sometimes called ‘digest’) is a kind of ‘signature’ for a text or a data file. SHA1 generates an almost-unique 160-bit (20-byte) signature for a text. There is a good description on Wikipedia; see below for the source code. Enter any message to check its SHA-1 hash Message abc Hash Note SHA-1 hash of ‘abc’ should be: a9993e364706816aba3e25717850c26c9cd0d89d A hash is not
SHA-256 Cryptographic Hash Algorithm implemented in JavaScript | Movable Type Scripts
A cryptographic hash (sometimes called ‘digest’) is a kind of ‘signature’ for a text or a data file. SHA-256 generates an almost-unique 256-bit (32-byte) signature for a text. See below for the source code. Enter any message to check its SHA-256 hash Message abc Hash Note SHA-256 hash of ‘abc’ should be: ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad A hash is not ‘encrypt
Block TEA ‘Tiny Encryption Algorithm’ (xxtea) implemented in JavaScript
Wheeler & Needham’s Tiny Encryption Algorithm is a simple but powerful encryption algorithm (based on a ‘Feistel cipher’). I’ve long been impressed by the combination of simplicity & effectiveness: while vulnerable to determined cryptanalysis such as related-key attack, TEA is a light-weight solution more appropriate for some applications than ‘industrial strength’ approaches such as AES. This i
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