Ciphering in vigenere with a key.

A terminal-based customizable rotation cipher

NEWDES3 Block cipher encryption source code in C. 9344-bit keys. 128-bit block cipher (like AES) 64 rounds.

Implementation of RC4 cipher in C

NEWDES2 Block cipher encryption source code in C. 15552-bit keys. 128-bit block cipher (like AES) 64 rounds

Triple DES 2304-bit keys block cipher encryption source code. Triple Data Encryption Standard with 2304-bit keys.

Public reference implementation of S-1 block cipher.

dataHider is a programm which hide secret words in a PNG image ( :P )

Enigma PolyAlphabetic Ciphering Method Emulator

Reference implementation in C of 4096XKS-F block cipher.

XTEA2 Block cipher encryption source code in C. 256-bit keys.

Toy for cipher/deciphering and cracking some basic ciphers.

A CLI in C to encrypt and decrypt text using a variety of cipher algorithms

Base64 decode/encode functions in C.

C11 codebase implementing string manipulation, struct handling, and classic ciphers, with Criterion tests and Makefile automation, designed for Linux environments and bash driven build workflows.

GOST2-128 Block cipher encryption source code in C. 4096-bit keys, 128-bit block cipher (like AES), 64 rounds.

RSA encryption and decryption of text files.

Vernam cipher implementation

IDEA 832-bit keys Block cipher encryption source code in C. International Data Encryption Algorithm 832 bits.