Feistel cipher implementation for format-preserving encryption

Implementation of a generalised Feistel cipher.

Keyed, reversible permutation for obfuscating sequential integer IDs: a 40-bit format-preserving Feistel network with an ARX round function, plus an optional base62 encoding.

NIST standard Format-preserving encryption FF3-1 implementation

Chiffrement Feistel maison 16 rounds

A crude implementation of a feistel cipher

Secure, lightweight library for obfuscating auto-increment IDs with Feistel cipher - prevents ID enumeration attacks while keeping URLs short

Lazy, efficient & stateless shuffles powered by generalised Feistel ciphers written in Solidity/Yul.

A nodejs library for Format Preserving Encryption that encrypts & decrypts the input in FF1 mode

An implementation of a 3 rounds of Feistel around AES 2-transformation 1-subtitution step. Supposed to be a pseudorandom permutation.

baseH: reversible, checksummed, human-safe short references for integers.

Redacting classified documents

TypeScript implementation of SLIP-0039 Shamir Secret Sharing for mnemonic seed phrases

A library that uses pseudorandom permutations to generate human-friendly IDs.

Arbitrary block length encryption of integers and binary data.

Arbitrary block length cipher and decipher class.

Node-RED wrapper nodes for xxtea.

Cosmian Cloudproof FPE library

This packages has core functionalities for s-des encryption and decryption

# About project Enhanced **[simplified Data Encryption Standard Algorithm](https://www.brainkart.com/article/Simplified-Data-Encryption-Standard-(S-DES)_8343/)** to protect data and to provide Security to the data.ESDES Algorithm uses number of operations