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公开(公告)号：US11132178B2
公开(公告)日：2021-09-28
申请号：US16856887
申请日：2020-04-23
申请人： STC.UNM
发明人： James Plusquellic
摘要： This disclosure describes techniques for analyzing statistical quality of bitstrings produced by a physical unclonable function (PUF). The PUF leverages resistance variations in the power grid wires of an integrated circuit. Temperature and voltage stability of the bitstrings are analyzed. The disclosure also describes converting a voltage drop into a digital code, wherein the conversion is resilient to simple and differential side-channel attacks.
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公开(公告)号：US11128477B2
公开(公告)日：2021-09-21
申请号：US16333931
申请日：2018-04-09
发明人： Toshiyuki Uehara , Ken Tajima
摘要： An electronic certification system that can simplify a process for verification of reliability while improving reliability. The electronic certification system guarantees reliability of data using an audit trail registered in a blockchain, the data being provided to a second terminal such as a client by a first terminal such as a server, the first terminal includes audit trail registration for registering information and the data as the audit trail in the blockchain, the information relating at least one of the first terminal, an administrator of the first terminal, and a program configured to run on the first terminal and exchange the data with the second terminal, and an audit trail provider for transmitting the audit trail to the second terminal. The second terminal determines that the data is reliable if the audit trail provided by the audit trail provider has been registered in the blockchain.
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63.发明申请公开(公告)号：US20210287573A1
公开(公告)日：2021-09-16
申请号：US17055993
申请日：2019-05-20
发明人： Koki HAMADA
摘要： Calculation time is reduced without degrading approximation accuracy in calculation of a complicated function through secure computation. A secret batch approximation system calculates a concealed text [z] of an approximate value z for a function value y satisfying yj=f(xj) by using a concealed text [x] of a value x as input. g is defined as a polynomial for approximating each section of m sections into which the function f is divided. A parameter acquisition unit acquires a concealed text [a] of a parameter a corresponding to the value x for each integer j that is not less than 1 and not more than n, where aj is defined as a parameter pi corresponding to a section Ri including a value xj. A polynomial calculation unit calculates a polynomial g([x], [a]) by using the concealed text [x] of the value x as input based on the concealed text [a].
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公开(公告)号：US11119838B2
公开(公告)日：2021-09-14
申请号：US16572382
申请日：2019-09-16
申请人： Intel Corporation
摘要： Examples may include a basic input/output system (BIOS) for a computing platform communicating with a controller for a non-volatile dual in-line memory module (NVDIMM). Communication between the BIOS and the controller may include a request for the controller to scan and identify error locations in non-volatile memory at the NVDIMM. The non-volatile memory may be capable of providing persistent memory for the NVDIMM.
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公开(公告)号：US20210264817A1
公开(公告)日：2021-08-26
申请号：US17243352
申请日：2021-04-28
发明人： JING GAO
摘要： A method for asymmetric encryption based on a gene chip includes the steps of (a) obtaining original information in text or image or other form and converting the same into a binary code, and (b) preprocessing the binary code to obtain a binary matrix. In (c), an encryption key is obtained, the encryption key comprising a gene expression solution. In (d), the gene expression solution is placed on a gene chip according to an arrangement and correspondence of the binary matrix.
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66.发明申请公开(公告)号：US20210256878A1
公开(公告)日：2021-08-19
申请号：US17221228
申请日：2021-04-02
申请人： OPe, LLC
IPC分类号： G09C1/00 , G02F1/1343 , H04L9/06 , H04L9/08 , G02F1/13 , G02F1/1335
摘要： A data security apparatus includes an analog component. The analog component operates internally with a high degree of entropy. This high degree of entropy resides in the interactions between its internal components in response to an external driving signal. The interactions within the analog component have a level of entropy that is high enough to make digital simulation of the analog component impractical. Because the analog component is impractical to digitally simulate it is referred to as being digitally unclonable. The data security apparatus processes data by encrypting plaintext data into ciphertext and/or decrypting data from ciphertext into plaintext. Part of the conversion between plaintext and ciphertext uses the analog component. Since the analog component is digitally unclonable (that is, impractical to digitally simulate), the part of the conversion process that uses the analog component requires possession of the analog component itself or the possession of another analog component that has the same signature.
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公开(公告)号：US11057201B2
公开(公告)日：2021-07-06
申请号：US16074856
申请日：2017-02-03
发明人： Akihisa Tomita , Kensuke Nakata
摘要： A random number sequence generation apparatus includes: a semiconductor laser device repeatedly generating a pulsed laser beam having a disordered phase; an interferometer including a first transmission line and a second transmission line, a first port connected to an input terminal side and to which the pulsed laser beam is input, a second port connected to an output terminal side and outputs the pulsed laser beam, and a third port connected to the input terminal side; a Faraday mirror connected to the second port and reflecting the pulsed laser beam; a photodiode connected to the third port and outputs an electrical signal in accordance with interference light of the pulsed laser beam that is reflected by the Faraday mirror and passes through one of the transmission lines; and an AD converter configured to generate a random number sequence on the basis of the electrical signal and a threshold.
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公开(公告)号：US20210203514A1
公开(公告)日：2021-07-01
申请号：US17189177
申请日：2021-03-01
摘要： A physical unclonable function is disclosed. A highly random distribution of magnetic particles within a thermoplastic polymer is created by magnetizing magnetizable particles in solid pellet feed material before feeding the solid pellets into an injection molding machine. Other devices and processes are disclosed.
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公开(公告)号：US11048805B2
公开(公告)日：2021-06-29
申请号：US15999360
申请日：2016-02-17
IPC分类号： G06F21/00 , G06F21/60 , H04L9/00 , G06F21/62 , G06F21/64 , G09C1/00 , G06F16/00 , G06F3/06 , H04L9/32 , H04L29/06
摘要： A method for storing data on a storage entity (SE) includes: computing a file identifier for a file to be stored on the SE; checking if the file has already been stored using the file identifier; generating a user-specific private and public identifier; updating or computing tags of the file by the client such that the updating or computing is homomorphic in the user-specific private identifier and in parts of the file; providing the user-specific public identifier, the updated tags and a proof of possession of the secret identifier to the SE; verifying the proof-of-possession; verifying validity of the tags; upon successful checking, storing a public identifier for the file incorporating the user-specific public identifier and the updated tags by the SE; and upon a case where it is determined that the file has not already been stored, storing the file.
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公开(公告)号：US11037385B2
公开(公告)日：2021-06-15
申请号：US16821697
申请日：2020-03-17
申请人： eBay Inc.
摘要： A system and method enable unlocking a locking device by controlling transmission of an access key. A server receives a location signal from a locking device. The location signal provides a confirmation generated by the locking device that the locking device is at a location associated with the recipient. In response to receiving the location signal confirming that the locking device is at the location associated with the recipient, the server triggers relay of an access key for unlocking the locking device.
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