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公开(公告)号：US10397450B2
公开(公告)日：2019-08-27
申请号：US15590849
申请日：2017-05-09
申请人： Google LLC
发明人： Ofer Shacham , Jason Rupert Redgrave , Albert Meixner , Qiuling Zhu , Daniel Frederic Finchelstein , David Patterson , Donald Stark
摘要： An apparatus is described. The apparatus includes an execution lane array coupled to a two dimensional shift register array structure. Locations in the execution lane array are coupled to same locations in the two-dimensional shift register array structure such that different execution lanes have different dedicated registers.
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公开(公告)号：US11750361B2
公开(公告)日：2023-09-05
申请号：US17176554
申请日：2021-02-16
申请人： Google LLC
发明人： Donald Stark
CPC分类号： H04L9/002 , G06F7/582 , G06F7/588 , H04L9/003 , H04L9/004 , H04L2209/08 , H04L2209/12
摘要： Methods, systems, and apparatuses for defending against cryptographic attacks using clock period randomization. The methods, systems, and apparatuses are designed to make side channel attacks and fault injection attacks more difficult by using a clock with a variable period during a cryptographic operation. In an example embodiment, a clock period randomizer includes a fixed delay generator and a variable delay generator, wherein a variable delay generated by the variable delay generator is based on a random or pseudorandom value that is changed occasionally or periodically. The methods, systems, and apparatuses are useful in hardware security applications where fault injection and/or side channel attacks are of concern.
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公开(公告)号：US11153464B2
公开(公告)日：2021-10-19
申请号：US16526063
申请日：2019-07-30
申请人： Google LLC
发明人： Ofer Shacham , Jason Rupert Redgrave , Albert Meixner , Qiuling Zhu , Daniel Frederic Finchelstein , David Patterson , Donald Stark
摘要： An apparatus is described. The apparatus includes an execution lane array coupled to a two dimensional shift register array structure. Locations in the execution lane array are coupled to same locations in the two-dimensional shift register array structure such that different execution lanes have different dedicated registers.
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公开(公告)号：US10719905B2
公开(公告)日：2020-07-21
申请号：US16547801
申请日：2019-08-22
申请人： Google LLC
发明人： Qiuling Zhu , Ofer Shacham , Albert Meixner , Jason Rupert Redgrave , Daniel Frederic Finchelstein , David Patterson , Neeti Desai , Donald Stark , Edward Chang , William R. Mark
摘要： An apparatus is described. The apparatus includes an image processing unit. The image processing unit includes a plurality of stencil processor circuits each comprising an array of execution unit lanes coupled to a two-dimensional shift register array structure to simultaneously process multiple overlapping stencils through execution of program code. The image processing unit includes a plurality of sheet generators respectively coupled between the plurality of stencil processors and the network. The sheet generators are to parse input line groups of image data into input sheets of image data for processing by the stencil processors, and, to form output line groups of image data from output sheets of image data received from the stencil processors. The image processing unit includes a plurality of line buffer units coupled to the network to pass line groups in a direction from producing stencil processors to consuming stencil processors to implement an overall program flow.
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公开(公告)号：US10417732B2
公开(公告)日：2019-09-17
申请号：US15599348
申请日：2017-05-18
申请人： Google LLC
发明人： Qiuling Zhu , Ofer Shacham , Albert Meixner , Jason Rupert Redgrave , Daniel Frederic Finchelstein , David Patterson , Neeti Desai , Donald Stark , Edward Chang , William Mark
摘要： An apparatus is described. The apparatus includes an image processing unit. The image processing unit includes a plurality of stencil processor circuits each comprising an array of execution unit lanes coupled to a two-dimensional shift register array structure to simultaneously process multiple overlapping stencils through execution of program code. The image processing unit includes a plurality of sheet generators respectively coupled between the plurality of stencil processors and the network. The sheet generators are to parse input line groups of image data into input sheets of image data for processing by the stencil processors, and, to form output line groups of image data from output sheets of image data received from the stencil processors. The image processing unit includes a plurality of line buffer units coupled to the network to pass line groups in a direction from producing stencil processors to consuming stencil processors to implement an overall program flow.
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公开(公告)号：US20210194667A1
公开(公告)日：2021-06-24
申请号：US17176554
申请日：2021-02-16
申请人： Google LLC
发明人： Donald Stark
摘要： Methods, systems, and apparatuses for defending against cryptographic attacks using clock period randomization. The methods, systems, and apparatuses are designed to make side channel attacks and fault injection attacks more difficult by using a clock with a variable period during a cryptographic operation. In an example embodiment, a clock period randomizer includes a fixed delay generator and a variable delay generator, wherein a variable delay generated by the variable delay generator is based on a random or pseudorandom value that is changed occasionally or periodically. The methods, systems, and apparatuses are useful in hardware security applications where fault injection and/or side channel attacks are of concern.
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公开(公告)号：US20190378239A1
公开(公告)日：2019-12-12
申请号：US16547801
申请日：2019-08-22
申请人： Google LLC
发明人： Qiuling Zhu , Ofer Shacham , Albert Meixner , Jason Rupert Redgrave , Daniel Frederic Finchelstein , David Patterson , Neeti Desai , Donald Stark , Edward Chang , William R. Mark
摘要： An apparatus is described. The apparatus includes an image processing unit. The image processing unit includes a plurality of stencil processor circuits each comprising an array of execution unit lanes coupled to a two-dimensional shift register array structure to simultaneously process multiple overlapping stencils through execution of program code. The image processing unit includes a plurality of sheet generators respectively coupled between the plurality of stencil processors and the network. The sheet generators are to parse input line groups of image data into input sheets of image data for processing by the stencil processors, and, to form output line groups of image data from output sheets of image data received from the stencil processors. The image processing unit includes a plurality of line buffer units coupled to the network to pass line groups in a direction from producing stencil processors to consuming stencil processors to implement an overall program flow.
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公开(公告)号：US09965824B2
公开(公告)日：2018-05-08
申请号：US14694828
申请日：2015-04-23
申请人： Google LLC
发明人： Qiuling Zhu , Ofer Shacham , Albert Meixner , Jason Rupert Redgrave , Daniel Frederic Finchelstein , David Patterson , Neeti Desai , Donald Stark , Edward T. Chang , William R. Mark
摘要： An apparatus is described. The apparatus includes an image processing unit. The image processing unit includes a network. The image processing unit includes a plurality of stencil processor circuits each comprising an array of execution unit lanes coupled to a two-dimensional shift register array structure to simultaneously process multiple overlapping stencils through execution of program code. The image processing unit includes a plurality of sheet generators respectively coupled between the plurality of stencil processors and the network. The sheet generators are to parse input line groups of image data into input sheets of image data for processing by the stencil processors, and, to form output line groups of image data from output sheets of image data received from the stencil processors. The image processing unit includes a plurality of line buffer units coupled to the network to pass line groups in a direction from producing stencil processors to consuming stencil processors to implement an overall program flow.
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