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1. 发明授权

US06577734B1 Data encryption key management system 失效
标题翻译：数据加密密钥管理系统
公开(公告)号：US06577734B1
公开(公告)日：2003-06-10
申请号：US08550909
申请日：1995-10-31
申请人： Mark H. Etzel , David W. Faucher , Daniel Nelson Heer , David P. Maher , Robert John Rance
发明人： Mark H. Etzel , David W. Faucher , Daniel Nelson Heer , David P. Maher , Robert John Rance
IPC分类号： H04L900
CPC分类号： H04L9/0822 , H04L9/0838 , H04L9/0894
摘要： The secure management of encryption keys is obtained by preventing external access thereto and ensuring that the keys do not leave an encryption unit in their original form. This result is obtained via a facility which (a) generates a unique device encryption key and at least one program encryption key, (b) encrypts the program encryption key using the device encryption key, and (c) stores the result in local memory. Thereafter, responsive to receipt of an indication to encrypt data, the program encryption key is retrieved from memory and is decrypted using the unique device encryption key. The data is then encrypted using the decrypted program encryption key and the encrypted data is stored in a server for distribution to a user who enters a request for the data. When there is a need to transport the latter key to another element, then the program key is encrypted using a symmetrical encryption key that the facility shares with the other element and the result is supplied to that element. The element then decrypts the encrypted program key using its own version of the symmetrical key.
摘要翻译：通过防止外部访问并确保密钥不以其原始形式离开加密单元来获得加密密钥的安全管理。该结果通过（a）生成唯一的设备加密密钥和至少一个程序加密密钥的设施获得，（b）使用设备加密密钥对程序加密密钥进行加密，以及（c）将结果存储在本地存储器中。此后，响应于接收到加密数据的指示，从存储器检索程序加密密钥，并使用唯一的设备加密密钥进行解密。然后使用解密的程序加密密钥对数据进行加密，并且将加密的数据存储在服务器中以分发给输入对数据的请求的用户。当需要将后一个密钥传输到另一个元素时，程序密钥使用设备与其他元素共享的对称加密密钥进行加密，并将结果提供给该元素。该元素然后使用其自己的版本的对称密钥解密加密的程序密钥。

2. 发明授权

US06876744B1 Methods and apparatus for enhanced CMEA including a CMEA iteration preceded and followed by transformations and employing an involuntary lookup 失效
标题翻译：用于增强CMEA的方法和装置，包括CMEA迭代之前和之后的转换和采用非自愿查找
公开(公告)号：US06876744B1
公开(公告)日：2005-04-05
申请号：US09120763
申请日：1998-07-22
申请人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
发明人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
IPC分类号： H04L9/06 , H04L29/06 , H04W12/00 , H04W12/02 , H04L9/32
CPC分类号： H04W12/02 , H04L9/0618 , H04L63/0428 , H04L2209/80
摘要： Methods and apparatus for enhanced CMEA, or ECMEA, processing. A forward ECMEA and a reverse ECMEA process are provided. The forward ECMEA process decrypts text encrypted by the reverse ECMEA process and the reverse ECMEA process decrypts text encrypted by the forward ECMEA process. The forward ECMEA process employs a first transformation, an iteration of the CMEA process, and a second transformation. The reverse ECMEA process employs a first inverse transformation, an iteration of the CMEA process, and a second inverse transformation. The transformations and inverse transformations, and the iterations of the CMEA process, employ secret offsets to improve security. The transformations and the iteration of the CMEA process also employ an enhanced tbox function using an involutary lookup table.
摘要翻译：增强CMEA或ECMEA的方法和设备，加工。提供了前向ECMEA和反向ECMEA流程。正向ECMEA过程解密由反向ECMEA过程加密的文本，而反向ECMEA过程会解密通过正向ECMEA过程加密的文本。前进ECMEA流程采用第一次转换，CMEA流程的迭代，第二次转换。反向ECMEA过程采用第一逆变换，CMEA过程的迭代和第二逆变换。转换和逆变换以及CMEA过程的迭代采用秘密补偿来提高安全性。 CMEA过程的转换和迭代也采用增强型tbox函数，使用渐近查找表。

3. 发明授权

US06266411B1 Method and apparatus for multiple-iteration CMEA encryption and decryption for improved security for wireless telephone messages 失效
标题翻译：用于多重迭代的方法和装置CMEA加密和解密用于改善无线电话消息的安全性
公开(公告)号：US06266411B1
公开(公告)日：2001-07-24
申请号：US09059107
申请日：1998-04-13
申请人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
发明人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
IPC分类号： H04K100
CPC分类号： H04L9/06 , H04L2209/80
摘要： An enhanced CMEA encryption system suitable for use in wireless telephony. A plaintext message is introduced into the system and subjected to a first iteration of a CMEA process, using a first CMEA key to produce an intermediate ciphertext. The intermediate ciphertext is then subjected to a second iteration of the CMEA process using a second CMEA key to produce a final ciphertext. Additional security is achieved by subjecting the plaintext and intermediate ciphertext to input and output transformations before and after each iteration of the CMEA process. The CMEA iterations may be performed using an improved use of a tbox function which adds permutations to a message or intermediate crypto-processed data. Decryption is achieved by subjecting a ciphertext message to the reverse order of the steps used for encryption, replacing the input and output transformations by inverse output and inverse input transformations, respectively, as appropriate.
摘要翻译：适用于无线电话的增强型CMEA加密系统。将明文消息引入到系统中，并使用第一CMEA密钥来产生中间密文，进行CMEA过程的第一次迭代。然后使用第二CMEA密钥对中间密文进行CMEA过程的第二次迭代以产生最终密文。通过对明文和中间密文进行输入和输出CMEA进程每次迭代之前和之后的转换来实现额外的安全性。 CMEA迭代可以使用对消息或中间加密处理的数据添加置换的tbox函数的改进的使用来执行。解密是通过对加密步骤的相反顺序进行密文消息来实现的，分别通过反向输出和反向输入变换分别代替输入和输出变换。

4. 发明授权

US06418224B1 Methods and apparatus for self-inverting multiple-iteration CMEA crypto-processing for improved security for wireless telephone messages 失效
标题翻译：用于自反相多重迭代CMEA加密处理的方法和装置，用于改善无线电话消息的安全性
公开(公告)号：US06418224B1
公开(公告)日：2002-07-09
申请号：US09073131
申请日：1998-05-05
申请人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
发明人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
IPC分类号： H04M166
CPC分类号： H04L9/0618 , H04L2209/80
摘要： A self-inverting enhanced CMEA encryption system suitable for use in wireless telephony. An unprocessed text message is introduced into the system and subjected to a first iteration of a CMEA process, using a first CMEA key to produce a first intermediate message, a first intermediate processed text message, a first intermediate ciphertext message or the like. The first intermediate processed text message is subjected to a further iteration of the CMEA process, using a second CMEA key, to produce a second intermediate processed text message. The second intermediate processed text message is subjected to a final iteration of the CMEA process, using the first CMEA key, to produce the final processed text message. Security may be additionally enhanced by subjecting each message to an input/output transformation before and after each iteration of the CMEA process. In a three-iteration process, a total of four input/output transformations are used with the first and fourth input/output transformations being identical, and with the second and third input/output transformations being identical.
摘要翻译：适用于无线电话的自反相增强型CMEA加密系统。未处理的文本消息被引入到系统中，并且使用第一CMEA密钥来产生第一中间消息，第一中间处理文本消息，第一中间密文消息等进行CMEA处理的第一次迭代。使用第二CMEA密钥对第一中间处理文本消息进行CMEA处理的进一步迭代，以产生第二中间处理文本消息。使用第一个CMEA密钥对第二个中间处理文本消息进行CMEA进程的最终迭代，以产生最终处理的文本消息。可以通过在CMEA进程的每次迭代之前和之后对每个消息进行输入/输出变换来额外增强安全性。在三次迭代过程中，总共使用四个输入/输出变换，其中第一和第四输入/输出变换是相同的，并且第二和第三输入/输出变换是相同的。

5. 发明授权

US06377687B1 Methods and apparatus for enhanced CMEA employing enhanced transformations 失效
标题翻译：使用增强转化的增强CMEA的方法和装置
公开(公告)号：US06377687B1
公开(公告)日：2002-04-23
申请号：US09124300
申请日：1998-07-29
申请人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
发明人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
IPC分类号： H04L928
CPC分类号： H04W12/02 , H04L9/06 , H04L63/0428 , H04L2209/08 , H04L2209/80
摘要： Methods and apparatus for enhanced CMEA, or ECMEA, processing. A forward ECMEA and a reverse ECMEA process are provided. The forward ECMEA process decrypts text encrypted by the reverse ECMEA process and the reverse ECMEA process decrypts text encrypted by the forward ECMEA process. The forward ECMEA process employs a transformation, an iteration of the CMEA process, and an inverse transformation. The reverse ECMEA process employs a reverse transformation, an iteration of the CMEA process, and a reverse inverse transformation. The transformations and inverse transformations, and the iteration of the CMEA process, employ secret offsets to improve security. The transformations and the iteration of the CMEA process also employ an enhanced tbox function using an involutary lookup table.
摘要翻译：增强CMEA或ECMEA的方法和设备，加工。提供了前向ECMEA和反向ECMEA流程。正向ECMEA过程解密由反向ECMEA过程加密的文本，而反向ECMEA过程会解密通过正向ECMEA过程加密的文本。前向ECMEA过程采用CMEA过程的转换，迭代和逆变换。反向ECMEA过程采用反向变换，CMEA过程的迭代和逆向逆变换。转换和逆变换以及CMEA过程的迭代采用秘密补偿来提高安全性。 CMEA过程的转换和迭代也采用增强型tbox函数，使用渐近查找表。

6. 发明授权

US06233337B1 Methods and apparatus for enhanced security expansion of a secret key into a lookup table for improved security for wireless telephone messages 失效
标题翻译：用于增强秘密密钥的安全扩展到查找表中以提高无线电话消息的安全性的方法和装置
公开(公告)号：US06233337B1
公开(公告)日：2001-05-15
申请号：US09059116
申请日：1998-04-13
申请人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
发明人： Mark H. Etzel , Robert John Frank , Daniel Nelson Heer , Robert Joseph McNelis , Semyon B. Mizikovsky , Robert John Rance , R. Dale Shipp
IPC分类号： H04K100
CPC分类号： H04L9/0618 , H04L2209/80
摘要： An enhancement to the use of a tbox function for CMEA encryption. Offsets are generated for application of the tbox function to a message, using secret values and previously encrypted message octets. The offsets are used to permute the message for application of the tbox function. For the first message of a call, the previously encrypted message octets are replaced by an initialization value. In a system employing a single iteration of CMEA encryption, first and second offsets are generated. In a system employing two iterations of CMEA encryption, first, second, third and fourth offsets are generated, with the first and second offsets being used in the first iteration of CMEA encryption and the third and fourth offsets being used in the second iteration of CMEA encryption.
摘要翻译：对CMEA加密使用tbox功能的增强。生成偏移量以将tbox函数应用于消息，使用秘密值和先前加密的消息八位字节。偏移量用于置换tbox函数的应用消息。对于呼叫的第一个消息，先前加密的消息八位字节将被初始化值替换。在采用CMEA加密的单次迭代的系统中，产生第一和第二偏移量。在采用CMEA加密的两次迭代的系统中，产生第一，第二，第三和第四偏移量，其中第一和第二偏移量用于CMEA加密的第一次迭代，第三和第四偏移量用于CMEA的第二次迭代加密。

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