Fastest, tested, mostly free password recovery software with benchmarks and review
Rarity → RAR 1.5 password recovery
Overview of RAR 1.5 password protection:
RAR archiver ver. 1.5 used its own weak encryption algorithm, which allowed to implement fast brute-force algorithm and was vulnerable to plain-text attack.
RAR 1.5 crypto algorithms: proprietary RAR 1.5 encryption weakness: human factor, weak algorithm, keyspace reduction Possible attacks against RAR 1.5: brute-force / known plaintext Attacks complexity: 264/ 240