Re: Can AES-NI be disabled?

2013-01-18 Thread MauMau
From: Jeffrey Walton noloa...@gmail.com That's actually covered in the FIPS User Guide. Oh, I didn't imagine that the way of disabling AES-NI was described in FIPS document. The runtime environment variable OPENSSL_ia32cap=~0x202 disables use of AES-NI, PCLMULQDQ, and SSSE3

Re: Can AES-NI be disabled?

2013-01-18 Thread Jakob Bohm
On 1/18/2013 1:25 AM, Jeffrey Walton wrote: ... That's actually covered in the FIPS User Guide. 3.2.3 Assembler Optimizations ... For the x86/x86-64 and ARM processors several levels of optimization are support by the code. Note that most such optimizations, if compiled into executable code,

Re: Can AES-NI be disabled?

2013-01-18 Thread Steve Marquess
On 01/18/2013 09:25 AM, Jakob Bohm wrote: On 1/18/2013 1:25 AM, Jeffrey Walton wrote: ... That's actually covered in the FIPS User Guide. 3.2.3 Assembler Optimizations ... For the x86/x86-64 and ARM processors several levels of optimization are support by the code. Note that most such

Can AES-NI be disabled?

2013-01-17 Thread MauMau
Hello, I'm using OpenSSL 1.0.1c on Linux and Windows to implement encryption feature of my software. I need to compare performance of cases where AES-NI is enabled and where it is disabled on the same computer. If possible, I want to avoid rebooting the computer for some reasons. Is it

Re: Can AES-NI be disabled?

2013-01-17 Thread Jeffrey Walton
On Thu, Jan 17, 2013 at 4:21 PM, MauMau maumau...@gmail.com wrote: Hello, I'm using OpenSSL 1.0.1c on Linux and Windows to implement encryption feature of my software. I need to compare performance of cases where AES-NI is enabled and where it is disabled on the same computer. If possible,