The above is based on reading the proprietary, but freely available UnRAR source. Know run Keygen. (There is no public format definition for RAR formats before 5.0. How To Crack WinRAR Download the WinRAR x32 or 圆4-bit. your result is not unreasonable, though there may be room to push it further by a factor of ten or so if the hardware is problematic or the software poorly optimized. this), the raw SHA-1 hash rate of your GPU should be about 10x that, but considering the somewhat special structure of the RAR hashing function, it is not obvious that it should reach that, especially with all password/salt lengths. According to what I can find online (e.g. A custom one based on SHA-1, with $2^$ iterations of the SHA-1 compression function.Īssuming a one-to-one correspondence between iterations and SHA-1, your 185000 passwords per second corresponds to about 300 million SHA-1 hashes per second.

This means it is not using PBKDF2 as version 5 is, but it still uses an iterative hash.

Your file is in 'RAR4' format (alternatively called 2.9).

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