Differences

This shows you the differences between two versions of the page.

--- aircrack-ng [2018/07/11 21:37] – Cracking session mister_x
+++ aircrack-ng [2018/07/11 21:53] – Fixed displaying page mister_x
@@ Line 328: / Line 328: @@
 Now you have the passphrase and can connect to the network.
+=== SIMD ===
+Aircrack-ng is compiled with multiple optimizations based on CPU features we call crypto engines. CPU features are different based on the type of CPU.
+On x86 (and 64 bit), typically SSE2, AVX and AVX2 are available (AVX512 can be compiled in but it should only be done if the current CPU supports it). On ARM, neon and ASIMD are usually available and on PowerPC, ASIMD and altivec. A generic optimization is always available no matter what architecture it is compiled on or for. A limited set of optimizations may be available depending on the OS/CPU/compilers available.
+When running aircrack-ng, it will load the fastest optimization based on what your CPU supports. For package maintainers, it is very useful as they don't have to target the one supporting all the CPU which would be the slowest.
+In order to override, the option -''''-simd can be used. Such as
+  aircrack-ng --simd=avx wpa.cap -w password.lst
+In order to list all the available SIMD optimization, use -''''-simd-list. Such as
+  aircrack-ng --simd-list
+will display "avx2 avx sse2 generic" on x86.
 ==== Cracking session ====