#CPUINFO AES INSTRUCTIONS FOR MAC OS#
#CPUINFO AES INSTRUCTIONS MAC OS X#
#CPUINFO AES INSTRUCTIONS FULL#
#CPUINFO AES INSTRUCTIONS WINDOWS 10#

These tests were executed with several changing variables, such as AES-NI enabled and AES-NI disabled. Functions within the EVP library automatically uses AES-NI if available.īelow are results from several tests. To ensure AES-NI is utilized doing the test, testers must use the –evp flag.

To execute performance testing, OpenSSL contains a function, speed, which allows one to test the speed of various encryption algorithms. Performance results are contingent on the computer system and dependent on which OpenSSL library is used while testing performance. The test results shown below were executed on a MacBook Pro Mid 2015 that contained an Intel Core i7 4870HQ 2.5GHz and 16GB of RAM. Sample output for a processor that supports AES (Mac).

#CPUINFO AES INSTRUCTIONS FOR MAC OS#

For Mac OS X: sysctl MacBook-Pro:~$ sysctl : FPU VME DE PSE TSC MSR PAE MCE CX8 APIC SEP MTRR PGE MCA CMOV PAT PSE36 CLFSH DS ACPI MMX FXSR SSE SSE2 SS HTT TM PBE SSE3 PCLMULQDQ DTES64 MON DSCPL VMX SMX EST TM2 SSSE3 FMA CX16 TPR PDCM SSE4.1 SSE4.2 x2APIC MOVBE POPCNT AES PCID XSAVE OSXSAVE SEGLIM64 TSCTMR AVX1.0 RDRAND F16C Figure 2. Sample out for a processor that supports AES (Linux). For Linux: grep aes /proc/cpuinfo grep aes /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm ida arat epb pln pts dtherm fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid xsaveopt Figure 1. Listed below are the commands and corresponding output.

#CPUINFO AES INSTRUCTIONS MAC OS X#

Users of Linux and Mac OS X can quickly use shell commands to determine if their processors support AES-NI.

#CPUINFO AES INSTRUCTIONS FULL#

AMD has taken a full coverage approach and implemented these instructions in all processors since Bulldozer-based processors in 2011. A full list of processors can be found on Intel’s website. Celeron, Pentium, and i3–4000m processors from the Haswell family do not support the new instructions, while all others do. Of the Ivy Bridge processors, all i5, i7, Xeon, and i3–2115C support AES-NI instructions. These instructions have been added to processors dating back to 2010, with Westmere as Intel’s first microarchitecture to feature them. Windows 7 and Windows 8 both utilize AES with an optional diffuser that could be configured to use 128 or 256-bit keys.

#CPUINFO AES INSTRUCTIONS WINDOWS 10#

Apple’s Mac OS X(since 10.7) and Microsoft’s Windows 10 both use XTS-AES-128 encryption. Another example of more commonplace encryption is modern operating systems offering full disk encryption for data security. Further, Google and Yahoo have deployed HTTPS for search queries and results. Since 2014, major companies such as Facebook, WordPress, and Tumblr have all secured communication with HTTPS by default. All communication between web servers and Internet browsers are secured using HTTPS and not only for authentication network traffic like in the past. Over the years, encryption has become more widespread, and Hypertext Transfer Protocol (HTTPS) is a prime example of encryption use a vast number of web servers use HTTPS to secure communications with clients. Can a secure algorithm, such as AES, perform at a rate or faster than an algorithm known for performance, such as RC4? The security of an algorithm is not always a forefront requirement in the selection process. Traditionally, encryption ciphers are selected based on the type of data secured and the performance requirements of the system or application.

The use of encryption is a predominant method of securing data at rest and in transit, as well as for securing communications between clients and servers. A vast number of encryption ciphers have been deemed weak (e.g., RC4), while others are considered industry standard (e.g., AES-128). The use of encryption has drastically changed over the years.

Cpuinfo aes instructions