发明名称 |
METHOD FOR ENCRYPTING DIGITAL FILE, METHOD FOR DECRYPTING DIGITAL FILE, APPARATUS FOR PROCESSING DIGITAL FILE AND APPARATUS FOR CONVERTING ENCRYPTION FORMAT |
摘要 |
Disclosed herein are a digital file encryption method, a digital file decryption method, a digital file processing apparatus, and an encryption format conversion apparatus. The digital file encryption method includes encrypting a file using specific encryption information, storing the encrypted file in a file system, and storing the encryption information in a stream provided by the file system. Accordingly, since file lengths before and after encryption are identical to each other, an application needs not to consider a header length or perform offset correction when using an encrypted file.
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申请公布号 |
WO2009066901(A3) |
申请公布日期 |
2009.08.20 |
申请号 |
WO2008KR06687 |
申请日期 |
2008.11.13 |
申请人 |
MARKANY INC.;KIM, JONG YOUNG;CHO, SUNG WON;LEE, DONG UK;CHOI, JONG UK |
发明人 |
KIM, JONG YOUNG;CHO, SUNG WON;LEE, DONG UK;CHOI, JONG UK |
分类号 |
G06F9/06 |
主分类号 |
G06F9/06 |
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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