首页> 外国专利> Method for controlling access of a user to descriptografação emergency, a secret encrypted by a user of criptografação file in a field of data recovery system (RFD)To control access to a secret user (

Method for controlling access of a user to descriptografação emergency, a secret encrypted by a user of criptografação file in a field of data recovery system (RFD)To control access to a secret user (

机译：控制用户访问数据恢复系统（RFD）领域中criptografa u00e7 u00e3o文件的用户加密的机密信息的方法，以控制对机密用户（US）的访问控制对criptografa u00e7 u00e3o文件用户的秘密方法的访问以控制用户对

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摘要

A system and method for key escrow and data escrow cryptography are described. In key escrow cryptography, only public escrow keys are stored in the sender and the receiver. The sender encrypts a message using a secret session key (KS), and generates an encrypted leaf verification string (ELVS) and a first law enforcement access field (LEAF). The receiver generates a second LEAF for comparison with the first LEAF. In data escrow cryptography, an encrypting user generates a data recovery field (DRF), that includes an access rule index (ARI) and a user's secret (US). To recover US, a decrypting user sends the DRF to a data recovery center (DRC) that issues a challenge based on access rules (AR) identified by the ARI. If the decrypting user meets the challenge, the DRC sends US to the decrypting user.

机译：描述了用于密钥托管和数据托管密码的系统和方法。在密钥托管加密中，只有公共托管密钥存储在发送方和接收方中。发送者使用秘密会话密钥（KS）加密消息，并生成加密的叶子验证字符串（ELVS）和第一执法访问字段（LEAF）。接收器生成第二个LEAF，用于与第一个LEAF进行比较。在数据托管密码术中，加密用户会生成数据恢复字段（DRF），其中包括访问规则索引（ARI）和用户的机密（US）。为了恢复US，解密用户将DRF发送到数据恢复中心（DRC），该中心根据ARI识别的访问规则（AR）发出质询。如果解密用户遇到了挑战，则DRC将US发送给解密用户。

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公开/公告号BR9508548A

专利类型
公开/公告日1998-11-03

原文格式PDF
申请/专利权人 TRUSTED INFORMATION SYSTEMS INC.;
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申请/专利号BR19959508548
发明设计人 STEPHEN T. WALKER;CARL M. ELLISON;STEVEN B. LIPNER;DAVID M. BALENSON;
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申请日1995-08-11
分类号H04L9/08;H04L9/32;
国家 BR
入库时间 2022-08-22 02:58:39

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