Difference between revisions of "AES NI"
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(aesni) Intel AES-NI engine | (aesni) Intel AES-NI engine | ||
(dynamic) Dynamic engine loading support | (dynamic) Dynamic engine loading support | ||
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| + | == Read More == | ||
| + | * [http://www.phoronix.com/scan.php?page=article&item=intel_aesni_dmcrypt Benchmarking eCryptfs and dm-crypt performed by Phoronix] | ||
Latest revision as of 17:33, 17 November 2011
Usage
To use AES NI you need to load the aesni_intel kernel module.
$ /sbin/modinfo aesni_intel filename: /lib/modules/3.0.0-13-generic/kernel/arch/x86/crypto/aesni-intel.ko alias: aes license: GPL description: Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized srcversion: 61A51F44F192D7CE0FBA795 depends: cryptd,aes-x86_64 vermagic: 3.0.0-13-generic SMP mod_unload modversions
To see if your CPU supports AES NI check the output of "cat /proc/cpuinfo | grep aes"
$ cat /proc/cpuinfo | grep aes | wc -l 4
To check whether or not AES NI is enabled check the contents of /proc/crypto
$ grep module /proc/crypto | sort -u module : aesni_intel module : aes_x86_64 module : arc4 module : kernel
To see if OpenSSL supports AES-NI run openssl engine
$ openssl engine (aesni) Intel AES-NI engine (dynamic) Dynamic engine loading support
