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1. 发明申请

US20140149744A1 METHOD FOR OBTAINING ENCRYPTION KEYS CORRESPONDING TERMINALS, SERVER AND COMPUTER PROGRAM PRODUCTS 有权
标题翻译：用于获取加密终端，服务器和计算机程序产品的方法
公开(公告)号：US20140149744A1
公开(公告)日：2014-05-29
申请号：US13699043
申请日：2011-05-16
申请人： Eric Brier , Thomas Peyrin
发明人： Eric Brier , Thomas Peyrin
IPC分类号： H04L9/08
CPC分类号： H04L9/0819 , H04L9/0838 , H04L9/0869 , H04L2209/38
摘要： A method and apparatus for obtaining an encryption key for an item of data transmitted from a client to a server. The method includes: determining a number R of registers available within the client for carrying out a plurality of calculations of encryption keys; determining a maximum number N of iterations necessary for obtaining at least one encryption key at the server; obtaining a structure of data representative of a key calculation state effected within the R available registers; calculating the at least one encryption key as a function: —of the number of available registers R, by performing at most N calls to a pseudo-random function F and —of the data structure; so that the at least one encryption key can be obtained from a combination of at most T=CR+NN−1 encryption keys based on a secret previously shared between the server and client.
摘要翻译：一种用于获得从客户端发送到服务器的数据项的加密密钥的方法和装置。该方法包括：确定客户端内可用的寄存器数量R，以执行加密密钥的多个计算; 确定在所述服务器处获得至少一个加密密钥所需的迭代的最大数量N; 获得表示在R可用寄存器内实现的密钥计算状态的数据结构; 通过对伪随机函数F和数据结构执行至多N个调用来计算至少一个加密密钥作为可用寄存器R的数量的函数; 使得可以基于先前在服务器和客户端之间共享的秘密从最多T = CR + NN-1加密密钥的组合中获得至少一个加密密钥。

2. 发明授权

US08966266B2 Method for obtaining encryption keys corresponding terminals, server and computer program products 有权
标题翻译：用于获取对应终端，服务器和计算机程序产品的加密密钥的方法
公开(公告)号：US08966266B2
公开(公告)日：2015-02-24
申请号：US13699043
申请日：2011-05-16
申请人： Eric Brier , Thomas Peyrin
发明人： Eric Brier , Thomas Peyrin
IPC分类号： H04L9/32 , H04L9/08
CPC分类号： H04L9/0819 , H04L9/0838 , H04L9/0869 , H04L2209/38
摘要： A method and apparatus for obtaining an encryption key for an item of data transmitted from a client to a server. The method includes: determining a number R of registers available within the client for carrying out a plurality of calculations of encryption keys; determining a maximum number N of iterations necessary for obtaining at least one encryption key at the server; obtaining a structure of data representative of a key calculation state effected within the R available registers; calculating the at least one encryption key as a function: —of the number of available registers R, by performing at most N calls to a pseudo-random function F and —of the data structure; so that the at least one encryption key can be obtained from a combination of at most T=CR+NN−1 encryption keys based on a secret previously shared between the server and client.
摘要翻译：一种用于获得从客户端发送到服务器的数据项的加密密钥的方法和装置。该方法包括：确定客户端内可用的寄存器数量R，以执行加密密钥的多个计算; 确定在所述服务器处获得至少一个加密密钥所需的迭代的最大数量N; 获得表示在R可用寄存器内实现的密钥计算状态的数据结构; 通过对伪随机函数F和数据结构执行至多N个调用来计算至少一个加密密钥作为可用寄存器R的数量的函数; 使得可以基于先前在服务器和客户端之间共享的秘密从最多T = CR + NN-1加密密钥的组合中获得至少一个加密密钥。

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