Invention Grant
- Patent Title: Detection of data tampering of encrypted data
- Patent Title (中): 检测数据篡改加密数据
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Application No.: US14737154Application Date: 2015-06-11
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Publication No.: US09576133B2Publication Date: 2017-02-21
- Inventor: Paul C. Kocher , Pankaj Rohatgi , Joshua M. Jaffe
- Applicant: Cryptography Research, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Cryptography Research, Inc.
- Current Assignee: Cryptography Research, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Lowenstein Sandler LLP
- Main IPC: H04L9/00
- IPC: H04L9/00 ; G06F21/57 ; G06F21/60 ; H04L9/08 ; H04L9/32 ; G06F12/14 ; H04L9/06 ; H04L9/16 ; G06F9/445 ; G06F21/76 ; G06F9/44 ; G06F21/55 ; H04L29/06

Abstract:
A device includes storage hardware to store a secret value and processing hardware coupled to the storage hardware. The processing hardware is to receive an encrypted data segment with a validator and derive a decryption key using the secret value and a plurality of entropy distribution operations. The processing hardware is further to verify, using the received validator, that the encrypted data segment has not been modified. The processing hardware is further to decrypt the encrypted data segment using the decryption key to produce a decrypted data segment responsive to verifying that the encrypted data segment has not been modified.
Public/Granted literature
- US20150280907A1 DEVICE WITH RESISTANCE TO DIFFERENTIAL POWER ANALYSIS AND OTHER EXTERNAL MONITORING ATTACKS Public/Granted day:2015-10-01
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