

A bundled tool dpmatt is a simple implementation of that. In fact, you can try brute force decoding even if you cannot get the encryption key. Therefore, possible key combinations are only 65,536 patterns. HSP file decryption routine uses two 8 bit encryption keys.Try HSPdeco and search chdpm from the decompiled source code. In such case, you may want to use a HSP decompiler to get the encryption key.FYI, decryption routine is exactly identical to the regular decoding.) (because it is hard to determine the encryption key 100% automatically, and axdpm does not have an interface for specifying encryption key. axdpm can decrypt only archives that do not specify the encryption key by chdpm.My favorite is Linar for browsing, and AtoB Converter for batch conversion. There are several picture viewers that supports Susie plugin. In Japan, Susie plugin is often used for decoding custom image formats inside a game. Susie is an old-school picture viewer for Windows, which can load additional formats by adding Susie plugins (*.spi). axdpmex33.spi: Same as axdpm33.spi, but this one supports in-EXE archive.axdpmex.spi: Same as axdpm.spi, but this one supports in-EXE archive.


