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Hashcat is the self-proclaimed world’s fastest CPU-based password recovery tool. It is available free of charge, although it has a proprietary codebase. Versions are available for Linux, OSX, and Windows and can come in CPU-based or GPU-based variants. Examples of hashcat supported hashing algorithms are Microsoft LM Hashes, MD4, MD5, SHA-family, Unix Crypt formats, MySQL, Cisco PIX. Hashcat has made its way into the news many times for the optimizations and flaws discovered by its creator, which become exploited in subsequent hashcat releases. (For example, the flaw in 1Password's hashing scheme.) == Variants == Hashcat comes in two main variants: * Hashcat - A CPU-based password recovery tool * oclHashcat/cudaHashcat - A GPU-accelerated tool (OpenCL or CUDA) Many of the algorithms supported by Hashcat can be cracked in a shorter time by using the well-documented GPU acceleration leveraged in oclHashcat (such as MD5, SHA1, and others). However, not all algorithms can be accelerated by leveraging GPUs. Bcrypt is a good example of this. Due to factors such as data-dependent branching, serialization, and memory (to name just a few), oclHashcat is not a catchall replacement for Hashcat. Hashcat is available for Linux, OSX and Windows. oclHashcat is only available for Linux and Windows due to improper implementations in OpenCL on OSX. . 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hashcat」の詳細全文を読む スポンサード リンク
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