RAR archiver
RAR archiver, developed by Eugene Roshal, uses a very strong
encryption algorithm.
Encryption key is 128 bits long. 256 bytes S-Box is derived from each key. S-Box operations are very
complicated and slow. Known-plaintext attack is not possible at all. Only
brute-force or dictionary attack can be used for password recovery. Recovery speed is very
low; for example, we can test only about 4800 passwords per second on P-III 800.
Applications for password recovery: