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公开(公告)号：US11882211B2
公开(公告)日：2024-01-23
申请号：US17489592
申请日：2021-09-29
Applicant: Seagate Technology LLC
Inventor： Foo Yee Yeo , Nolan Miranda , Vipin Singh Sehrawat
CPC classification number: H04L9/085 , H04L9/008 , H04L9/0662 , H04L9/0825
Abstract: A function secret sharing (FSS) scheme that facilitates multiple evaluations of a secret function. The FSS scheme includes a function share based on a secret function and at least one key of a key-homomorphic pseudo random function (PRF). At least one key and a function share are provided to each party in the FSS scheme. In turn, each party may generate an output share comprising a function share output evaluated at a function input and a masking component generated based on the at least one key in relation to the key-homomorphic PRF. In turn, the output shares of each participating party may be combined to evaluate the secret function. The FSS scheme facilitates multiple evaluations of the secret function without leaking information regarding the secret function.
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公开(公告)号：US20220060314A1
公开(公告)日：2022-02-24
申请号：US16996270
申请日：2020-08-18
Applicant: Seagate Technology LLC
Inventor： Vipin Singh Sehrawat , Hamza Jeljeli
Abstract: A method of improving data security or privacy in a computing environment includes providing a group identifier value to at least a first user of one or more users and associating a first pseudonym with the first user. The method further includes encrypting a first data set according to a private key and marking the encrypted first data set according to the group identifier and the first pseudonym. The method also includes performing a first operation on the encrypted first data set and transforming the encrypted first data set into an encrypted second data set according to the first operation performed and the first pseudonym, decrypting the encrypted second data set using the private key, and analyzing the decrypted second data set.
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公开(公告)号：US11522672B2
公开(公告)日：2022-12-06
申请号：US17164509
申请日：2021-02-01
Applicant: Seagate Technology LLC
Inventor： Vipin Singh Sehrawat , Foo Yee Yeo
Abstract: A homomorphic encryption system evaluates homomorphically encrypted data, including receiving ciphertext input homomorphically encrypted from a plaintext input using a set-system including sets having an intersection property. An arithmetic function is evaluated on the ciphertext input to generate a ciphertext output, the arithmetic function including one or more additive gates and one or more multiplicative gates, wherein the evaluating operation generates errors during evaluation of the arithmetic function and the intersection property of the sets cancel out the errors during the evaluating operation. The ciphertext output is transmitted for homomorphic decryption to generate a plaintext result.
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公开(公告)号：US11515996B2
公开(公告)日：2022-11-29
申请号：US17164609
申请日：2021-02-01
Applicant: Seagate Technology LLC
Inventor： Vipin Singh Sehrawat , Foo Yee Yeo
Abstract: A homomorphic encryption system receives a ciphertext output of an arithmetic evaluation function. The arithmetic evaluation function is performed on a ciphertext input homomorphically encrypted from a plaintext input using a set-system including sets having an intersection property. The ciphertext output is decrypted using a summation of two or more noise-canceling party identifiers of two or more authorized parties, wherein the intersection property of the sets cancels out errors generated during the decrypting operation for the two or more authorized parties.
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公开(公告)号：US11496287B2
公开(公告)日：2022-11-08
申请号：US16996270
申请日：2020-08-18
Applicant: Seagate Technology LLC
Inventor： Vipin Singh Sehrawat , Hamza Jeljeli
Abstract: A method of improving data security or privacy in a computing environment includes providing a group identifier value to at least a first user of one or more users and associating a first pseudonym with the first user. The method further includes encrypting a first data set according to a private key and marking the encrypted first data set according to the group identifier and the first pseudonym. The method also includes performing a first operation on the encrypted first data set and transforming the encrypted first data set into an encrypted second data set according to the first operation performed and the first pseudonym, decrypting the encrypted second data set using the private key, and analyzing the decrypted second data set.
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Patent Agency Ranking
公开(公告)号：US11956350B2
公开(公告)日：2024-04-09
申请号：US17219496
申请日：2021-03-31
Applicant: Seagate Technology LLC
Inventor： Foo Yee Yeo , Vipin Singh Sehrawat
CPC classification number: H04L9/085 , H04L9/0656
Abstract: A secret sharing scheme with yes and no shares and having a hidden access structure. The secret sharing scheme may include share generation in which yes shares and no shares are generated for, and distributed to, each party in the secret sharing scheme. In turn, upon an attempt to reconstruct the secret, participants in the reconstruction each provide a share, which is unknown to be a yes share or a no share to the other participants. The secret is only reconstructable if the shares used in the reconstruction include yes shares of a minimal authorized subset of the parties. However, prior to secret reconstruction, the access structure remains hidden and the participants in a reconstruction are unaware of the character of the shares provided by other participants in the reconstruction attempt.
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7.发明授权公开(公告)号：US11907392B2
公开(公告)日：2024-02-20
申请号：US17318045
申请日：2021-05-12
Applicant: Seagate Technology LLC
Inventor： Nolan Miranda , Vipin Singh Sehrawat , Foo Yee Yeo
IPC: G06F21/62 , G06F21/55 , G06F16/248 , G06F16/28 , G06F16/242
CPC classification number: G06F21/6227 , G06F16/248 , G06F16/2448 , G06F16/284 , G06F21/556
Abstract: A function is decomposed into a plurality of function shares. The function returns a Boolean result based on whether an input y satisfies a query on a data set. The function shares hide the function from non-collaborating entities that separately execute the function shares. Each of the functions shares are sent to one of a plurality of servers having a same data set. The function shares are executed on the data set at the servers to obtain a respective plurality of shares. A conditional disclosure of secrets operation is simulated on the shares and the input y. The conditional disclosure of secrets operation uses a secret known to at least one of the servers, and further uses a source of randomness shared between the servers. A Boolean value corresponding to the Boolean result is returned based on the conditional disclosure of secrets operation returning the secret.
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公开(公告)号：US20220198048A1
公开(公告)日：2022-06-23
申请号：US17127038
申请日：2020-12-18
Applicant: Seagate Technology LLC
Inventor： Vipin Singh Sehrawat
Abstract: A method for distributed and private symmetric searchable encryption includes receiving encrypted data, creating a search index for one or more servers based on the encrypted data using a distributed point function (DPF), splitting the encrypted data into a number of portions based on the number of servers, and partitioning the servers into two or more groups. The method also includes updating the search index based on the splitting and the partitioning, transmitting the split encrypted data to the servers based on the updated search index, verifying the transmitted data using data not transmitted to the server, and determining, based on the verifying, whether any server deviated from an assigned protocol.
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公开(公告)号：US12008146B2
公开(公告)日：2024-06-11
申请号：US17219263
申请日：2021-03-31
Applicant: Seagate Technology LLC
Inventor： Vipin Singh Sehrawat
Abstract: A computer-implemented method receives at least two unique versions of program code of a program, generates a code-based key for each unique version of the program code, generates a code-based signature for each unique version of the program using a bi-homomorphic pseudorandom function selected from a family of bi-homomorphic pseudorandom functions. Each code-based signature is generated by the selected bi-homomorphic pseudorandom function based on the corresponding code-based key. Each generated code-based signature for each unique version of the program code is incorporated into the program code of the corresponding unique version of the program.
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公开(公告)号：US11985240B2
公开(公告)日：2024-05-14
申请号：US16947121
申请日：2020-07-20
Applicant: Seagate Technology LLC
Inventor： Vipin Singh Sehrawat
CPC classification number: H04L9/321 , G06F16/2379 , H04L9/085 , H04L63/1425
Abstract: A computing system can have a data storage device connected to a host as part of a distributed computing system with an initial reputation score assigned to the data storage device with a decentralize module. The data storage device is positioned in a hierarchical device organization based on the reputation score with the hierarchical device organization maintained by the decentralize module. A decentralized secret sharing scheme generated by the decentralize module can authenticate the host with multiple different secrets sourced from different components logically positioned in different levels of the hierarchical device organization.
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