发明名称 |
Encrypting file system and method |
摘要 |
A system and method for encryption and decryption of files. The system and method operate in conjunction with the file system to transparently encrypt and decrypt files in using a public key-private key pair encryption scheme. When a user puts a file in an encrypted directory or encrypts a file, all data writes to the disk for that file are encrypted with a random file encryption key generated from a random number and encrypted with the public key of a user and the public key of at least one recovery agent. The encrypted key information is stored with the file, whereby the user or a recovery agent can decrypt the file data using the private key thereof. When a proper private key is used, encrypted reads from the disk are decrypted transparently by the file system and returned to the user.
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申请公布号 |
US6249866(B1) |
申请公布日期 |
2001.06.19 |
申请号 |
US19970931774 |
申请日期 |
1997.09.16 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
BRUNDRETT PETER;GARG PRAERIT;GU JIANRONG;KELLY, JR. JAMES W.;KAPLAN KEITH S.;REICHEL ROBERT P.;ANDREW BRIAN;KIMURA GARY D.;MILLER THOMAS J. |
分类号 |
G06F1/00;G06F12/00;G06F12/14;G06F21/00;G06F21/22;G06F21/24;G09C1/00;(IPC1-7):H04L9/30 |
主分类号 |
G06F1/00 |
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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