Tag Archives: eprint

用 FPGA 破 WPA2

在 Twitter 上看到「Efficient High-Speed WPA2 Brute Force Attacks using Scalable Low-Cost FPGA Clustering」這篇論文,講比較便宜的 FPGA 破 WPA2 的最佳化。主要的成果可以從表格看到,這是 FPGA 的: Ztex 1.15y 應該是「USB-FPGA Module 1.15y: Quad-Spartan 6 LX150 FPGA Board with USB 2.0 Microcontroller」這組,而 Ztex 2.16 應該是「USB-FPGA Module 2.16: Artix 7 … Continue reading

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USD$75 解 RSA 512bits

Cryptology ePrint Archive 上面剛好是 2015 年編號 1000 號的論文:「Factoring as a Service」。透過 Amazon EC2 服務以及 CADO-NFS 的幫助,四小時內就可以解出 512bits RSA,而如同作者說的,雖然已經很不安全了,但在許多地方仍然被使用著: The difficulty of integer factorization is fundamental to modern cryptographic security using RSA encryption and signatures. Although a 512-bit RSA modulus was … Continue reading

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