Patents by Inventor Wajdi K. Feghali

Wajdi K. Feghali has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10187201
    Abstract: A flexible aes instruction set for a general purpose processor is provided. The instruction set includes instructions to perform a “one round” pass for aes encryption or decryption and also includes instructions to perform key generation. An immediate may be used to indicate round number and key size for key generation for 128/192/256 bit keys. The flexible aes instruction set enables full use of pipelining capabilities because it does not require tracking of implicit registers.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: January 22, 2019
    Assignee: Intel Corporation
    Inventors: Shay Gueron, Wajdi K Feghali, Vinodh Gopal, Raghunandan Makaram, Martin G Dixon, Srinivas Chennupaty, Michael E Kounavis
  • Patent number: 10181945
    Abstract: A flexible aes instruction set for a general purpose processor is provided. The instruction set includes instructions to perform a “one round” pass for aes encryption or decryption and also includes instructions to perform key generation. An immediate may be used to indicate round number and key size for key generation for 128/192/256 bit keys. The flexible aes instruction set enables full use of pipelining capabilities because it does not require tracking of implicit registers.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: January 15, 2019
    Assignee: INTEL CORPORATION
    Inventors: Shay Gueron, Wajdi K. Feghali, Vinodh Gopal, Raghunandan Makaram, Martin G. Dixon, Srinivas Chennupaty, Michael E. Kounavis
  • Patent number: 10171232
    Abstract: A flexible aes instruction set for a general purpose processor is provided. The instruction set includes instructions to perform a “one round” pass for aes encryption or decryption and also includes instructions to perform key generation. An immediate may be used to indicate round number and key size for key generation for 128/192/256 bit keys. The flexible aes instruction set enables full use of pipelining capabilities because it does not require tracking of implicit registers.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: January 1, 2019
    Assignee: Intel Corporation
    Inventors: Shay Gueron, Wajdi K Feghali, Vinodh Gopal, Raghunandan Makaram, Martin G Dixon, Srinivas Chennupaty, Michael E Kounavis
  • Patent number: 10171231
    Abstract: A flexible aes instruction set for a general purpose processor is provided. The instruction set includes instructions to perform a “one round” pass for aes encryption or decryption and also includes instructions to perform key generation. An immediate may be used to indicate round number and key size for key generation for 128/192/256 bit keys. The flexible aes instruction set enables full use of pipelining capabilities because it does not require tracking of implicit registers.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: January 1, 2019
    Assignee: Intel Corporation
    Inventors: Shay Gueron, Wajdi K Feghali, Vinodh Gopal, Raghunandan Makaram, Martin G Dixon, Srinivas Chennupaty, Michael E Kounavis
  • Patent number: 10164769
    Abstract: A flexible aes instruction set for a general purpose processor is provided. The instruction set includes instructions to perform a “one round” pass for aes encryption or decryption and also includes instructions to perform key generation. An immediate may be used to indicate round number and key size for key generation for 128/192/256 bit keys. The flexible aes instruction set enables full use of pipelining capabilities because it does not require tracking of implicit registers.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 25, 2018
    Assignee: Intel Corporation
    Inventors: Shay Gueron, Wajdi K Feghali, Vinodh Gopal, Raghunandan Makaram, Martin G Dixon, Srinivas Chennupaty, Michael E Kounavis
  • Patent number: 10158478
    Abstract: A flexible aes instruction set for a general purpose processor is provided. The instruction set includes instructions to perform a “one round” pass for aes encryption or decryption and also includes instructions to perform key generation. An immediate may be used to indicate round number and key size for key generation for 128/192/256 bit keys. The flexible aes instruction set enables full use of pipelining capabilities because it does not require tracking of implicit registers.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: December 18, 2018
    Assignee: Intel Corporation
    Inventors: Shay Gueron, Wajdi K Feghali, Vinodh Gopal, Raghunandan Makaram, Martin G Dixon, Srinivas Chennupaty, Michael E Kounavis
  • Patent number: 10158484
    Abstract: Instructions and logic provide for a Single Instruction Multiple Data (SIMD) SM4 round slice operation. Embodiments of an instruction specify a first and a second source data operand set, and substitution function indicators, e.g. in an immediate operand. Embodiments of a processor may include encryption units, responsive to the first instruction, to: perform a slice of SM4-round exchanges on a portion of the first source data operand set with a corresponding keys from the second source data operand set in response to a substitution function indicator that indicates a first substitution function, perform a slice of SM4 key generations using another portion of the first source data operand set with corresponding constants from the second source data operand set in response to a substitution function indicator that indicates a second substitution function, and store a set of result elements of the first instruction in a SIMD destination register.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: December 18, 2018
    Assignee: Intel Corporation
    Inventors: Sean M. Gulley, Gilbert M. Wolrich, Vinodh Gopal, Kirk S. Yap, Wajdi K. Feghali
  • Patent number: 10158376
    Abstract: An embodiment may include circuitry that may be capable of performing compression-related operations that may include: (a) indicating, at least in part, in a data structure at least one position of at least one subset of characters that are to be encoded as a symbol, (b) comparing, at least in part, at least one pair of multi-byte data words that are of identical predetermined fixed size, (c) maintaining, at least in part, an array of pointers to potentially matching strings that are to be compared with at least one currently examined string, and/or (d) allocating, at least in part, a first buffer portion to store at least one portion of uncompressed data from an application buffer that is to be input for compression to produce a compressed data stream.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: December 18, 2018
    Assignee: INTEL CORPORATION
    Inventors: James D. Guilford, Vinodh Gopal, Gilbert M. Wolrich, Erdinc Ozturk, Wajdi K. Feghali
  • Patent number: 10152326
    Abstract: A processor includes an instruction decoder to receive a first instruction to process a secure hash algorithm 2 (SHA-2) hash algorithm, the first instruction having a first operand associated with a first storage location to store a SHA-2 state and a second operand associated with a second storage location to store a plurality of messages and round constants. The processor further includes an execution unit coupled to the instruction decoder to perform one or more iterations of the SHA-2 hash algorithm on the SHA-2 state specified by the first operand and the plurality of messages and round constants specified by the second operand, in response to the first instruction.
    Type: Grant
    Filed: December 31, 2016
    Date of Patent: December 11, 2018
    Assignee: Intel Corporation
    Inventors: Kirk S. Yap, Gilbert M. Wolrich, James D. Guilford, Vinodh Gopal, Erdinc Ozturk, Sean M. Gulley, Wajdi K. Feghali, Martin G. Dixon
  • Patent number: 10146544
    Abstract: A processor includes an instruction decoder to receive a first instruction to process a secure hash algorithm 2 (SHA-2) hash algorithm, the first instruction having a first operand associated with a first storage location to store a SHA-2 state and a second operand associated with a second storage location to store a plurality of messages and round constants. The processor further includes an execution unit coupled to the instruction decoder to perform one or more iterations of the SHA-2 hash algorithm on the SHA-2 state specified by the first operand and the plurality of messages and round constants specified by the second operand, in response to the first instruction.
    Type: Grant
    Filed: December 31, 2016
    Date of Patent: December 4, 2018
    Assignee: Intel Corporation
    Inventors: Kirk S. Yap, Gilbert M. Wolrich, James D. Guilford, Vinodh Gopal, Erdinc Ozturk, Sean M. Gulley, Wajdi K. Feghali, Martin G. Dixon
  • Patent number: 10127042
    Abstract: A processor includes an instruction decoder to receive a first instruction to process a secure hash algorithm 2 (SHA-2) hash algorithm, the first instruction having a first operand associated with a first storage location to store a SHA-2 state and a second operand associated with a second storage location to store a plurality of messages and round constants. The processor further includes an execution unit coupled to the instruction decoder to perform one or more iterations of the SHA-2 hash algorithm on the SHA-2 state specified by the first operand and the plurality of messages and round constants specified by the second operand, in response to the first instruction.
    Type: Grant
    Filed: December 31, 2016
    Date of Patent: November 13, 2018
    Assignee: Intel Corporation
    Inventors: Kirk S. Yap, Gilbert M. Wolrich, James D. Guilford, Vinodh Gopal, Erdinc Ozturk, Sean M. Gulley, Wajdi K. Feghali, Martin G. Dixon
  • Publication number: 20180321940
    Abstract: A method of one aspect may include receiving a rotate instruction. The rotate instruction may indicate a source operand and a rotate amount. A result may be stored in a destination operand indicated by the rotate instruction. The result may have the source operand rotated by the rotate amount. Execution of the rotate instruction may complete without reading a carry flag.
    Type: Application
    Filed: March 29, 2018
    Publication date: November 8, 2018
    Applicant: lntel Corporation
    Inventors: Vinodh Gopal, James D. Guilford, Gilbert M. Wolrich, Wajdi K. Feghali, Erdinc Ozturk, Martin G. Dixon, Sean P. Mirkes, Bret L. Toll, Maxim Loktyukhin, Mark C. Davis, Alexandre J. Farcy
  • Publication number: 20180310012
    Abstract: Methods and apparatus are described by which data is compressed using semi-dynamic Huffman code generation. Embodiments generate symbol statistics over a portion of data. The symbol statistics are expanded to include all possible literals that could appear within the data. Any literal or reference added to the statistics may be given a frequency of one. The statistics are used to generate a semi-dynamic Huffman code. The entire data is then compressed using the semi-dynamic Huffman code.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 25, 2018
    Inventors: Gregory B. Tucker, James D. Guilford, Daniel F. Cutter, Vinodh Gopal, Wajdi K. Feghali
  • Patent number: 10108805
    Abstract: A processor includes an instruction decoder to receive a first instruction to process a secure hash algorithm 2 (SHA-2) hash algorithm, the first instruction having a first operand associated with a first storage location to store a SHA-2 state and a second operand associated with a second storage location to store a plurality of messages and round constants. The processor further includes an execution unit coupled to the instruction decoder to perform one or more iterations of the SHA-2 hash algorithm on the SHA-2 state specified by the first operand and the plurality of messages and round constants specified by the second operand, in response to the first instruction.
    Type: Grant
    Filed: December 31, 2016
    Date of Patent: October 23, 2018
    Assignee: Intel Corporation
    Inventors: Kirk S. Yap, Gilbert M. Wolrich, James D. Guilford, Vinodh Gopal, Erdinc Ozturk, Sean M. Gulley, Wajdi K. Feghali, Martin G. Dixon
  • Publication number: 20180287630
    Abstract: Techniques and apparatus for verification of compressed data are described. In one embodiment, for example an apparatus to provide verification of compressed data may include at least one memory and logic, at least a portion of comprised in hardware coupled to the at least one memory, the logic to access compressed data, access compression information associated with the compressed data, decompress at least a portion of the compressed data to generate decompressed data, and verify the compressed data via a comparison of the decompressed data with the compression information. Other embodiments are described and claimed.
    Type: Application
    Filed: March 26, 2018
    Publication date: October 4, 2018
    Applicant: INTEL CORPORATION
    Inventors: VINODH GOPAL, JAMES D. GUILFORD, KIRK S. YAP, DANIEL F. CUTTER, WAJDI K. FEGHALI
  • Patent number: 10038550
    Abstract: Instructions and logic provide secure cipher hashing algorithm round functionality. Some embodiments include a processor comprising: a decode stage to decode an instruction for a secure cipher hashing algorithm, the first instruction specifying a source data, and one or more key operands. Processor execution units, are responsive to the decoded instruction, to perform one or more secure cipher hashing algorithm round iterations upon the source data, using the one or more key operands, and store a result of the instruction in a destination register. One embodiment of the instruction specifies a secure cipher hashing algorithm round iteration using a Feistel cipher algorithm such as DES or TDES. In one embodiment a result of the instruction may be used in generating a resource assignment from a request for load balancing requests across the set of processing resources.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: July 31, 2018
    Assignee: Intel Corporation
    Inventors: Vinodh Gopal, Wajdi K. Feghali
  • Patent number: 10037210
    Abstract: An apparatus is described that includes a semiconductor chip having an instruction execution pipeline having one or more execution units with respective logic circuitry to: a) execute a first instruction that multiplies a first input operand and a second input operand and presents a lower portion of the result, where, the first and second input operands are respective elements of first and second input vectors; b) execute a second instruction that multiplies a first input operand and a second input operand and presents an upper portion of the result, where, the first and second input operands are respective elements of first and second input vectors; and, c) execute an add instruction where a carry term of the add instruction's adding is recorded in a mask register.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: July 31, 2018
    Assignee: INTEL CORPORATION
    Inventors: Gilbert M. Wolrich, Kirk S. Yap, James D. Guilford, Erdinc Ozturk, Vinodh Gopal, Wajdi K. Feghali, Sean M. Gulley, Martin G. Dixon
  • Publication number: 20180157489
    Abstract: A processor includes a plurality of registers, an instruction decoder to receive an instruction to process a KECCAK state cube of data representing a KECCAK state of a KECCAK hash algorithm, to partition the KECCAK state cube into a plurality of subcubes, and to store the subcubes in the plurality of registers, respectively, and an execution unit coupled to the instruction decoder to perform the KECCAK hash algorithm on the plurality of subcubes respectively stored in the plurality of registers in a vector manner.
    Type: Application
    Filed: September 26, 2017
    Publication date: June 7, 2018
    Inventors: Kirk S. Yap, Gilbert M. Wolrich, James D. Guilford, Vinodh Gopal, Erdinc Ozturk, Sean M. Gulley, Wajdi K. Feghali, Martin G. Dixon
  • Patent number: 9990201
    Abstract: A method in one aspect may include receiving a multiply instruction. The multiply instruction may indicate a first source operand and a second source operand. A product of the first and second source operands may be stored in one or more destination operands indicated by the multiply instruction. Execution of the multiply instruction may complete without writing a carry flag. Other methods are also disclosed, as are apparatus, systems, and instructions on machine-readable medium.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: June 5, 2018
    Assignee: Intel Corporation
    Inventors: Vinodh Gopal, James D. Guilford, Wajdi K. Feghali, Erdine Ozturk, Gilbert M. Wolrich, Martin G. Dixon, Mark C. Davis, Sean P. Mirkes, Alexandre Farcy, Bret L. Toll, Maxim Loktyukhin
  • Publication number: 20180152201
    Abstract: Technologies for flexibly compressing data include a computing device having an accelerator complex that is to receive a compression job request and schedule the compression job request for one or more hardware compression resources of the accelerator complex. The accelerator complex is further to perform the compression job request with the one or more hardware compression resources in response to scheduling the compression job request and to communicate uncompressed data and compressed data with an I/O subsystem of the computing device in response to performing the compression job request. Other embodiments are described and claimed.
    Type: Application
    Filed: September 29, 2017
    Publication date: May 31, 2018
    Inventors: Vinodh Gopal, James D. Guilford, Kirk S. Yap, Daniel F. Cutter, Wajdi K. Feghali