Intel BX80623I72600K Datasheet download pdf (Page 40)

Technologies

40 Datasheet, Volume 1

3.5 Intel

Advanced Vector Extensions (AVX)

Intel

Advanced Vector Extensions (AVX) is the latest expansion of the Intel instruction

set. It extends the Intel

Streaming SIMD Extensions (SSE) from 128-bit vectors into

256-bit vectors. Intel AVX addresses the continued need for vector floating-point

performance in mainstream scientific and engineering numerical applications, visual

processing, recognition, data-mining/synthesis, gaming, physics, cryptography and

other areas of applications. The enhancement in Intel AVX allows for improved

performance due to wider vectors, new extensible syntax, and rich functionality

including the ability to better manage, rearrange, and sort data. For more information

on Intel AVX, see http://www.intel.com/software/avx

3.6 Advanced Encryption Standard New Instructions

(AES-NI)

The processor supports Advanced Encryption Standard New Instructions (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). 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.

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.

3.6.1 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.

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 109 110

No comments

Intel BX80623I72600K Datasheet Page 40