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crack.sh describes itself as the “world’s fastest DES Cracker.” In essence, it is an online service for DES key cracking and security research into legacy authentication protocols. It is not a firewall, EDR, or vulnerability scanner in the traditional sense. Instead, it uses dedicated FPGA hardware and rainbow tables to validate attacks against DES and DES-based scenarios such as LANMAN, NTLMv1, MSCHAPv1, MSCHAPv2, PPTP VPN, and WPA-Enterprise, demonstrating that these mechanisms are no longer secure.
Its core hardware consists of 48 Xilinx Virtex-6 LX240T FPGAs, with each FPGA containing 40 pipelined DES cores. Each board delivers roughly 16 billion keys/sec, for a total of around 768 billion keys/sec, allowing the full 56-bit DES keyspace to be exhausted in about 26 hours. Compared with the EFF DES Cracker from 1998, which took about 9.2 days to brute-force the keyspace, this is a significant performance improvement. The service also offers DES rainbow-table capabilities based on a Time-Memory Tradeoff approach. For tasks using the plaintext 1122334455667788, the average cracking time is about 25 seconds with a 99.5% success rate; if there is no immediate hit, the task is passed to the brute-force hardware for continued processing.
The source text does not provide specific pricing, but it mentions two paid options: an “ASAP!” expedited option and a lower-cost “Take Your Time” option. DES tasks for the specific plaintext 1122334455667788 can be run for free. Its pricing model is largely driven by the cost of dedicated FPGA hardware exceeding $100,000, as well as operations, cooling, and electricity costs.
The main advantages are transparent performance metrics, a highly efficient hardware implementation for DES, and a low barrier for researchers to demonstrate the risks of legacy mechanisms such as NTLMv1, MS-CHAPv2, and PPTP. The drawbacks are also clear: the service is highly specialized and cannot replace a comprehensive cybersecurity product. The source text does not disclose enterprise procurement details commonly expected around data retention, authorization checks, compliance certifications, SLA, API, audit logs, and similar areas. As with any cracking capability, users must ensure they have proper legal authorization.
It is suitable for security researchers, authorized penetration testers, red teams/blue teams, cryptography education, and enterprise audits of legacy authentication protocols. If an organization is still using DES, NTLMv1, MSCHAPv2, or PPTP, this service can serve as a risk-validation tool.
The crawled source text does not provide information on accessibility from mainland China, so china_access is assessed as unknown.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on crack.sh official site.
crack.sh is an Unknown Security provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach crack.sh directly.