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BLOWFISH/TWOFISH
Blowfish was designed by Bruce Schneier as a potential replacement for DES in 1993 and has no known published attacks. Initial key permutation is slow, leading it to be selected for the OBSD passwd hash algorithm
Notes:
The slow key setup time (equivalent to the time it takes to encrypt a 4K block) is very long in comparison to most ciphers. This makes it difficult to mount dictionary attacks due to the extremely slow rate of testing hashes.