FPE Packages

Format-preserving encryption implementation

Feistel cipher implementation for format-preserving encryption

With this package, you can create Random Numbers and Timestamp Based Random Numbers with low probability of collision using strong randomized bytes as seed.

Node.js implementation of the FE1 Format Preserving Encryption algorithm.

Format-preserving encryption on ASCII characters

Format-preserving encryption implementation

Format-preserving encryption preserving the pattern of the text

Random number/string generator and utilities

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

Format-preserving encryption

Implementation of a generalised Feistel cipher.

Make the index look like it is shuffled according to the range so that it is not conflicted without the actual shuffle.

TypeScript Format-Preserving Encryption