发明名称 |
SINGLE-USE AUTHENTICATION METHODS FOR ACCESSING ENCRYPTED DATA |
摘要 |
Single-use authentication methods for accessing encrypted data stored on a protected volume of a computer are described, wherein access to the encrypted data involves decrypting a key protector stored on the computer that holds a volume-specific cryptographic key needed to decrypt the protected volume. Such single-use authentication methods rely on the provision of a key protector that can only be used once and/or that requires a new access credential for each use. In certain embodiments, a challenge-response process is also used as part of the authentication method to tie the issuance of a key protector and/or access credential to particular pieces of information that can uniquely identify a user. |
申请公布号 |
WO2011162990(A2) |
申请公布日期 |
2011.12.29 |
申请号 |
WO2011US40063 |
申请日期 |
2011.06.10 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
URECHE, OCTAVIAN T.;DUSSART, NILS;JEFFRIES, CHARLES G.;ILAC, CRISTIAN M.;BHARADWAJ, VIJAY G.;BASMOV, INNOKENTIY;THOM, STEFAN;VOBA, SON |
分类号 |
H04L9/32;G06F21/20;H04L9/14 |
主分类号 |
H04L9/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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