What is the max length of a dictionary word that AccentRPR supports for dictionary-based attacks?
The max length of a word is currently limited to 28 characters. This limitation is dictated by the nature of the format used. For RAR files, the 28-character limitation is attributed to a bug in the RAR format, where longer passwords will be calculated using a different algorithm due to an internal buffer overflow. GPU-based search for such passwords is very hard to implement.
Future versions of AccentRPR will feature CPU-based recovery of passwords over 28 characters long (considerable slowdowns expected).