Symmetric encryption algorithm

The following encryption methods are used: Character shuffling; Generic xor (unsafe on its own); Overlaying data on the password mask

Hello world! -> ЩJ╕°w;╬`м▼Х♫

Lib usage

1. Encrypt: fcsEncrypt(char* data, char* key, int dataLength, int keyLength)
2. Decrypt: fcsDecrypt(char* data, char* key, int dataLength, int keyLength)

Download library header