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1. 发明专利

JP2007140566A Efficient packet encryption method 审中-公开
标题翻译：高效的分组加密方法
公开(公告)号：JP2007140566A
公开(公告)日：2007-06-07
申请号：JP2007044679
申请日：2007-02-23
申请人： Avaya Technology Corp , アバイヤテクノロジーコーポレイションAvaya Technology Corp.
发明人： GARSTIN MARK , GILMAN ROBERT R , ROBINSON RICHARD L , SIDDIQUI ANWAR , WUTZKE MARK
IPC分类号： G09C1/00 , H04L9/00 , H04L9/12 , H04L9/36
CPC分类号： H04L9/0656 , H04L9/0891 , H04L9/12 , H04L2209/80
摘要： PROBLEM TO BE SOLVED: To provide a packet encryption method wherein the computation time for encryption/decryption is reduced, and packets can be recovered even when the packets are lost.
SOLUTION: The efficient packet encryption method includes: a step of creating an S-vector; a step of setting a sequence number; a step of setting a first variable; a step of setting a second variable; a step of setting a byte sequence number; a step of calculating a third variable from the second variable and the byte sequence number; a step of incrementing the byte sequence number; a step of calculating a fourth variable by adding the value within the S-vector pointed to by the third variable to the first variable; a step of specifying an encryption byte based on the value within the S-vector pointed to by the third variable and the fourth variable; and a step of exclusive ORing to generate the byte.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种分组加密方法，其中加密/解密的计算时间减少，并且即使分组丢失也可以恢复分组。解决方案：有效的分组加密方法包括：创建S向量的步骤; 设置序列号的步骤; 设置第一个变量的步骤; 设置第二个变量的步骤; 设置字节序列号的步骤; 从第二变量和字节序列号计算第三变量的步骤; 增加字节序列号的步骤; 通过将第三变量指向的S向量内的值与第一变量相加来计算第四变量的步骤; 基于由第三变量指向的S向量内的值和第四变量来指定加密字节的步骤; 以及异或运算来生成字节的步骤。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2003234732A EFFICIENT PACKET ENCRYPTION METHOD 审中-公开
公开(公告)号：JP2003234732A
公开(公告)日：2003-08-22
申请号：JP2002382422
申请日：2002-12-27
申请人： AVAYA TECHNOLOGY CORP
发明人： GARSTIN MARK , GILMAN ROBERT R , ROBINSON RICHARD L , SIDDIQUI ANWAR , WUTZKE MARK
IPC分类号： H04L9/00 , H04L9/12 , H04L9/36
摘要： PROBLEM TO BE SOLVED: To provide an efficient packet encryption key in which the computation time for encryption/decryption is decreased and even when a packet is lost or the like, it can be recovered. SOLUTION: This method comprises a step for generating an S-vector, a step for setting a sequence number, a step for setting a first variable, a step for setting a second variable, a step for setting a byte sequence number, a step for calculating a third variable from the second variable and the byte sequence number, a step for incrementing the byte sequence number, a step for calculating a fourth variable by adding the first variable to the value within the S-vector by the third variable, a step for locating an encryption byte and also a step for taking the exclusive ORing to generate the byte based on the third variable and the value within the S-vector by the fourth variable. COPYRIGHT: (C)2003,JPO

3. 发明专利

CA2415508A1 EFFICIENT PACKET ENCRYPTION METHOD 未知
公开(公告)号：CA2415508A1
公开(公告)日：2003-07-04
申请号：CA2415508
申请日：2002-12-30
申请人： AVAYA TECHNOLOGY CORP
发明人： SIDDIQUI ANWAR , GARSTIN MARK , ROBINSON RICHARD L , GILMAN ROBERT R , WUTZKE MARK
IPC分类号： H04L9/00 , H04L9/12 , H04L9/36 , H04L9/28
摘要： The present efficient packet encryption method decreases the computation time to encrypt and decrypt successive packets of plaintext data. An S-vector is generated and the S-vector is used to encrypt successive packets of plaintext, thus reducing the per packet encryption/decryption time. The formula for encrypting successive packets includes use of the packet sequence number with a third variable injected to eliminate the predictability of the variables, thus making the present efficient packet encryption method more secure. A fourth variable is injected into the calculations to generate an encryption stream that does not repeat as frequently to provide additional security from hackers. For encrypting a packet having a long payload of plaintext, a packet byte sequence number is used to generate an encryption stream that is less likely to repeat within a particular packet.

4. 发明专利

DE60301147T2 未知
公开(公告)号：DE60301147T2
公开(公告)日：2006-06-08
申请号：DE60301147
申请日：2003-01-03
申请人： AVAYA TECHNOLOGY CORP
发明人： GARSTIN MARK , GILMAN ROBERT R , WUTZKE MARK , ROBINSON RICHARD L , SIDDIQUI ANWAR
IPC分类号： H04L9/12 , H04L9/00 , H04L9/36

5. 发明专利

DE60301147D1 未知
公开(公告)号：DE60301147D1
公开(公告)日：2005-09-08
申请号：DE60301147
申请日：2003-01-03
申请人： AVAYA TECHNOLOGY CORP
发明人： GARSTIN MARK , GILMAN ROBERT R , WUTZKE MARK , ROBINSON RICHARD L , SIDDIQUI ANWAR
IPC分类号： H04L9/00 , H04L9/12 , H04L9/36

6. 发明专利

CA2558227A1 METHOD FOR UNDETECTABLY IMPEDING KEY STRENGTH OF ENCRYPTION USAGE FOR PRODUCTS EXPORTED TO OTHER COUNTRIES 未知
公开(公告)号：CA2558227A1
公开(公告)日：2007-03-13
申请号：CA2558227
申请日：2006-08-30
申请人： AVAYA TECHNOLOGY CORP
发明人： ROBINSON RICHARD L
IPC分类号： H04L9/16
摘要： In one embodiment, a communication device includes a key strength controlli ng agent 308 operable to (i) receive a request for a cryptographic key; (ii) determine, from a restriction identifier, whether the cryptographic key strength is restricted ; (iii) when the cryptographic key is restricted, cause the use of a second cryptographic key having a second key strength; and (iv) when the cryptographic key is not restricted, cause the use of a first cryptographic key having a first key strength. The first and seco nd key strengths are different.

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