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digital signal processing software. FMA improves performance in face detection,
professional imaging, and high performance computing. Gather operations increase
vectorization opportunities for many applications. In addition to the vector extensions,
this generation of Intel processors adds new bit manipulation instructions useful in
compression, encryption, and general purpose software.
For more information on Intel AVX, see http://www.intel.com/software/avx
3.6 Intel
®
Advanced Encryption Standard New Instructions
(Intel
®
AES-NI)
The processor supports Intel Advanced Encryption Standard New Instructions (Intel
AES-NI) that are a set of Single Instruction Multiple Data (SIMD) instructions that
enable fast and secure data encryption and decryption based on the Advanced
Encryption Standard (AES). Intel AES-NI are valuable for a wide range of
cryptographic applications, such as applications that perform bulk encryption/
decryption, authentication, random number generation, and authenticated encryption.
AES is broadly accepted as the standard for both government and industry
applications, and is widely deployed in various protocols.
Intel AES-NI consists of six Intel SSE instructions. Four instructions, AESENC,
AESENCLAST, AESDEC, and AESDELAST facilitate high performance AES encryption
and decryption. The other two, AESIMC and AESKEYGENASSIST, support the AES key
expansion procedure. Together, these instructions provide a full hardware for
supporting AES; offering security, high performance, and a great deal of flexibility.
PCLMULQDQ Instruction
The processor supports the carry-less multiplication instruction, PCLMULQDQ.
PCLMULQDQ is a Single Instruction Multiple Data (SIMD) instruction that computes the
128-bit carry-less multiplication of two, 64-bit operands without generating and
propagating carries. Carry-less multiplication is an essential processing component of
several cryptographic systems and standards. Hence, accelerating carry-less
multiplication can significantly contribute to achieving high speed secure computing
and communication.
Intel
®
Secure Key
The processor supports Intel
®
Secure Key (formerly known as Digital Random Number
Generator (DRNG)), a software visible random number generation mechanism
supported by a high quality entropy source. This capability is available to
programmers through the RDRAND instruction. The resultant random number
generation capability is designed to comply with existing industry standards in this
regard (ANSI X9.82 and NIST SP 800-90).
Some possible usages of the RDRAND instruction include cryptographic key generation
as used in a variety of applications, including communication, digital signatures,
secure storage, and so on.
3.7
Intel
®
Transactional Synchronization Extensions (Intel
®
TSX)
Intel Transactional Synchronization Extensions (Intel TSX). Intel TSX provides a set of
instruction set extensions that allow programmers to specify regions of code for
transactional synchronization. Programmers can use these extensions to achieve the
Technologies—Processor
Intel
®
Xeon
®
Processor E3-1200 v3 Product Family
June 2013 Datasheet – Volume 1 of 2
Order No.: 328907-001 45