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1. 发明授权

US07487359B2 Time stamping method employing a separate ticket and stub 失效
标题翻译：时间戳方法采用单独的机票和存根
公开(公告)号：US07487359B2
公开(公告)日：2009-02-03
申请号：US11846562
申请日：2007-08-29
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
IPC分类号： H04L9/00 , G06F7/04 , H04K1/00
CPC分类号： H04L9/3297 , H04L9/3242
摘要： A time stamping protocol has two stages referred to as the ticketing stage and the certification stage. During the ticketing stage, the document or other identifying data is sent to the TSA. The TSA generates a “ticket” based on the document or other identifying data and a time indication derived from a trusted clock. The ticket, which serves as an unsigned time stamp receipt, is transmitted back to the document originator. During the certification stage, the holder of the ticket requests a certified time stamp receipt by presenting the ticket to the TSA. The TSA verifies the ticket and generates a signed time stamp receipt, called the ticket stub, which is then transmitted back to the document originator. The ticket stub serves as a “universal time-stamp” that the holder of the ticket stub can use to prove the date of the document.
摘要翻译：时间戳协议有两个阶段，称为票务阶段和认证阶段。在票务阶段，文件或其他识别数据被发送到TSA。 TSA根据文档或其他标识数据和从可信时钟导出的时间指示生成“票证”。作为未签名的时间戳收据的票据被传回给文件发起者。在认证阶段，机票持有人通过向TSA提供机票来申请经过认证的时间戳收据。 TSA验证票据并生成一个称为票据存根的签名时间戳收据，然后将其传回给文档发起者。票据桩作为票据存根的持有者可以用来证明文件的日期的“通用时间戳”。

2. 发明授权

US07315948B1 Time stamping method employing a separate ticket and stub 失效
标题翻译：时间戳方法采用单独的机票和存根
公开(公告)号：US07315948B1
公开(公告)日：2008-01-01
申请号：US09458921
申请日：1999-12-10
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
IPC分类号： H04L9/00 , G06F7/04 , H04K1/00
CPC分类号： H04L9/3297 , H04L9/3242
摘要： A time stamping protocol has two stages referred to as the ticketing stage and the certification stage. During the ticketing stage, the document or other identifying data is sent to the TSA. The TSA generates a “ticket” based on the document or other identifying data and a time indication derived from a trusted clock. The ticket, which serves as an unsigned time stamp receipt, is transmitted back to the document originator. During the certification stage, the holder of the ticket requests a certified time stamp receipt by presenting the ticket to the TSA. The TSA verifies the ticket and generates a signed time stamp receipt, called the ticket stub, which is then transmitted back to the document originator. The ticket stub serves as a “universal time-stamp” that the holder of the ticket stub can use to prove the date of the document.
摘要翻译：时间戳协议有两个阶段，称为票务阶段和认证阶段。在票务阶段，文件或其他识别数据被发送到TSA。 TSA根据文档或其他标识数据和从可信时钟导出的时间指示生成“票证”。作为未签名的时间戳收据的票据被传回给文件发起者。在认证阶段，机票持有人通过向TSA提交机票来申请经过认证的时间戳收据。 TSA验证票据并生成一个称为票据存根的签名时间戳收据，然后将其传回给文档发起者。票据桩作为票据存根的持有者可以用来证明文件的日期的“通用时间戳”。

3. 发明授权

US06965998B1 Time stamping method using time-based signature key 失效
标题翻译：时间戳法使用基于时间的签名密钥
公开(公告)号：US06965998B1
公开(公告)日：2005-11-15
申请号：US09459187
申请日：1999-12-10
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
IPC分类号： H04K1/00 , H04L9/00 , H04L9/32
CPC分类号： H04L9/3297 , H04L2209/60
摘要： A time-stamping protocol for time-stamping digital documents uses a time-based signature key. A document or other identifying data is sent to a time stamping authority TSA. The TSA has a time-based signature key that the TSA uses to sign time stamp receipts. The signature key is associated with a fixed time reference that is stored in a public key certificate also containing the public verification key. Upon receiving the document, the TSA creates a time stamp receipt by computing a time difference between the time reference associated with the signature key and the time the document was received. The time difference is appended to the document to create a time stamp receipt and the receipt is then signed by the TSA and transmitted to the requestor.
摘要翻译：时间戳数字文档的时间戳协议使用基于时间的签名密钥。文件或其他识别数据被发送到时间戳机构TSA。 TSA具有TSA用于签署时间戳收据的基于时间的签名密钥。签名密钥与存储在还包含公共验证密钥的公开密钥证书中的固定时间基准相关联。在接收到文档时，TSA通过计算与签名密钥相关联的时间参考与文档被接收的时间之间的时间差来创建时间戳接收。时间差附加到文档以创建时间戳收据，然后TSA签收收据并传送给请求者。

4. 发明授权

US06742119B1 Time stamping method using time delta in key certificate 有权
标题翻译：时间戳方法在密钥证书中使用时间增量
公开(公告)号：US06742119B1
公开(公告)日：2004-05-25
申请号：US09458937
申请日：1999-12-10
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
IPC分类号： H04L900
CPC分类号： H04L9/3297 , H04L2209/60
摘要： A method for time stamping a digital document is disclosed. The document originator creates a time stamp receipt by combining the document and a digital time indication. The time stamp receipt is submitted to a time stamping agent having a trusted clock. The time stamping agent optionally validates the time stamp receipt and then computes the age of the time stamp receipt. If valid, the time stamping agent certifies the time stamp receipt by signing the time stamp receipt with a private signature key. The private signature key is selected from a group of signature keys by the time stamping agent based on the computed age of the time stamp receipt.
摘要翻译：公开了一种用于时间戳数字文档的方法。文档创建者通过组合文档和数字时间指示来创建时间戳收据。时间戳收据提交给具有可信时钟的时间戳代理。时间戳代理可选地验证时间戳收据，然后计算时间戳收据的年龄。如果有效，则时间戳代理人通过使用私人签名密钥签署时间戳接收来证明时间戳接收。基于所计算的时间戳收据的年龄，由时间戳代理从一组签名密钥中选择私人签名密钥。

5. 发明授权

US07519824B1 Time stamping method employing multiple receipts linked by a nonce 失效
标题翻译：采用多个收据连结的时间戳的时间戳方法
公开(公告)号：US07519824B1
公开(公告)日：2009-04-14
申请号：US09458410
申请日：1999-12-10
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
IPC分类号： H04L9/00 , G06F7/04 , H04K1/00
CPC分类号： H04L9/3297 , H04L2209/60
摘要： A method for time stamping a digital document employs a two-part time stamp receipt. The first part of the time stamp receipt includes identifying data associated with a document and a nonce. The second part of the time stamp receipt includes a time indication and the nonce. The nonce serves as a link between the first and second parts.
摘要翻译：用于时间戳数字文档的方法采用两部分时间戳收据。时间戳收据的第一部分包括与文档和随机数相关联的识别数据。时间戳收据的第二部分包括时间指示和随机数。该随机数作为第一和第二部分之间的链接。

6. 发明授权

US07490241B1 Time stamping method employing user specified time 失效
标题翻译：使用用户指定时间的时间戳方法
公开(公告)号：US07490241B1
公开(公告)日：2009-02-10
申请号：US09458922
申请日：1999-12-10
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
IPC分类号： H04L9/00
CPC分类号： H04L9/3297 , H04L2209/60
摘要： A method for time stamping a digital document is disclosed. The document originator creates a time stamp receipt using the document and the current time. The time stamp receipt is submitted to a time stamping authority having a trusted clock. The time stamping authority validates the time stamp receipt by comparing the time value specified in the time stamp receipt to the current time. If the time value specified in the time stamp receipt is within a predetermined time window, the time stamping authority cryptographically binds the time value and document, or the time value and some representation of the document, e.g., by signing the time stamp receipt with its private signature key.
摘要翻译：公开了一种用于时间戳数字文档的方法。文档创建者使用文档和当前时间创建时间戳收据。时间戳收据提交给具有可信时钟的时间戳机构。时间戳权限通过将时间戳收据中指定的时间值与当前时间进行比较来验证时间戳收据。如果时间戳收据中指定的时间值在预定的时间窗口内，则时间戳机构将时间值和文档加密地绑定，或者时间值和文档的某些表示，例如通过签署时间戳私人签名密钥。

7. 发明授权

US06993656B1 Time stamping method using aged time stamp receipts 失效
标题翻译：使用老化时间戳收据的时间戳方法
公开(公告)号：US06993656B1
公开(公告)日：2006-01-31
申请号：US09458928
申请日：1999-12-10
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen M. Matyas, Jr.
IPC分类号： H04L9/00
CPC分类号： H04L9/3297 , H04L63/123 , H04L2209/60 , H04L2463/121
摘要： A method for time stamping a digital document is disclosed. The document originator creates a time stamp receipt by combining the document or other identifying data and a digital time indication. The time stamp receipt is submitted to a time stamping authority having a trusted clock. The time stamping authority optionally validates the time stamp receipt and then computes the age of the time stamp receipt. The time stamping authority creates an aged time stamp receipt by combining the identifying data and time indication contained in the submitted time stamp receipt with the computed age of the time stamp receipt. The time stamping authority cryptographically binds the time information and identifying data in the aged time stamp receipt, e.g., by signing the combination of the identifying data, time indication, and computed age with a private signature generation key.
摘要翻译：公开了一种用于时间戳数字文档的方法。文档发起者通过组合文档或其他识别数据和数字时间指示来创建时间戳接收。时间戳收据提交给具有可信时钟的时间戳机构。时间戳权限可选地验证时间戳收据，然后计算时间戳收据的年龄。时间戳权力通过将提交的时间戳收据中包含的识别数据和时间指示与计算的时间戳收据的年龄组合来创建老化的时间戳收据。时间戳权限例如通过用私有签名生成密钥签名识别数据，时间指示和计算的年龄的组合来密码地绑定时间信息和识别老化时间戳收据中的数据。

8. 发明申请

US20070294537A1 Time Stamping Method Employing a Separate Ticket and Stub 失效
标题翻译：使用单独机票和存根的时间戳方法
公开(公告)号：US20070294537A1
公开(公告)日：2007-12-20
申请号：US11846562
申请日：2007-08-29
申请人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen Matyas
发明人： Mohammad Peyravian , Allen Roginsky , Nevenko Zunic , Stephen Matyas
IPC分类号： H04L9/00
CPC分类号： H04L9/3297 , H04L9/3242
摘要： A time stamping protocol has two stages referred to as the ticketing stage and the certification stage. During the ticketing stage, the document or other identifying data is sent to the TSA. The TSA generates a “ticket” based on the document or other identifying data and a time indication derived from a trusted clock. The ticket, which serves as an unsigned time stamp receipt, is transmitted back to the document originator. During the certification stage, the holder of the ticket requests a certified time stamp receipt by presenting the ticket to the TSA. The TSA verifies the ticket and generates a signed time stamp receipt, called the ticket stub, which is then transmitted back to the document originator. The ticket stub serves as a “universal time-stamp” that the holder of the ticket stub can use to prove the date of the document
摘要翻译：时间戳协议有两个阶段，称为票务阶段和认证阶段。在票务阶段，文件或其他识别数据被发送到TSA。 TSA根据文档或其他标识数据和从可信时钟导出的时间指示生成“票证”。作为未签名的时间戳收据的票据被传回给文件发起者。在认证阶段，机票持有人通过向TSA提交机票来申请经过认证的时间戳收据。 TSA验证票据并生成一个称为票据存根的签名时间戳收据，然后将其传回给文档发起者。票据存根是票据存根持有人可以用来证明文件的日期的“通用时间戳”

9. 发明申请

US20090169014A1 DISTRIBUTION AND AUTHENTICATION OF PUBLIC KEYS USING RANDOM NUMBERS AND DIFFIE-HELLMAN PUBLIC KEYS 失效
标题翻译：公开号码使用随机数和分布式公钥的分布和认证
公开(公告)号：US20090169014A1
公开(公告)日：2009-07-02
申请号：US12352658
申请日：2009-01-13
申请人： Mohammad Peyravian , Allen Leonid Roginsky , Nevenko Zunic
发明人： Mohammad Peyravian , Allen Leonid Roginsky , Nevenko Zunic
IPC分类号： H04L9/00
CPC分类号： H04L9/3013 , H04L9/0844
摘要： A system to exchange and authenticate public cryptographic keys between parties that share a common but secret password, using a pair of random numbers, a pair of Diffie-Hellman public keys computed from the random numbers and the password, a Diffie-Hellman symmetric secret key computed from the Diffie-Hellman public keys and the random numbers, and hashed values of arguments that depend upon these elements.
摘要翻译：使用一对随机数，根据随机数和密码计算的一对Diffie-Hellman公钥来交换和认证共享公共密码的各方之间的公共密钥的系统，Diffie-Hellman对称密钥根据Diffie-Hellman公钥和随机数计算出的散列值，并根据这些元素的参数进行散列。

10. 发明授权

US5937066A Two-phase cryptographic key recovery system 失效
标题翻译：两相加密密钥恢复系统
公开(公告)号：US5937066A
公开(公告)日：1999-08-10
申请号：US725102
申请日：1996-10-02
申请人： Rosario Gennaro , Donald Byron Johnson , Paul Ashley Karger , Stephen Michael Matyas, Jr. , Mohammad Peyravian , David Robert Safford , Marcel Mordechay Yung , Nevenko Zunic
发明人： Rosario Gennaro , Donald Byron Johnson , Paul Ashley Karger , Stephen Michael Matyas, Jr. , Mohammad Peyravian , David Robert Safford , Marcel Mordechay Yung , Nevenko Zunic
IPC分类号： G09C1/00 , H04L9/08 , H04L9/00
CPC分类号： H04L9/0841 , H04L9/085 , H04L9/0897
摘要： A cryptographic key recovery system that operates in two phases. In the first phase, the sender establishes a secret value with the receiver. For each key recovery agent, the sender generates a key-generating value as a one-way function of the secret value and encrypts the key-generating value with a public key of the key recovery agent. In the second phase, performed for a particular cryptographic session, the sender generates for each key recovery agent a key-encrypting key as a one-way function of the corresponding key-generating value and multiply encrypts the session key with the key-encrypting keys of the key recovery agents. The encrypted key-generating values and the multiply encrypted session key are transmitted together with other recovery information in a manner permitting their interception by a party seeking to recover the secret value. To recover the secret value, the party seeking recovery presents the encrypted key-generating values and public recovery information to the key recovery agents, who decrypt the key-generating values, regenerate the key-encrypting keys from the corresponding key-generating values, and provide the regenerated key-encrypting keys to the recovering party. The recovering party uses the key-encrypting keys to recover the secret value. Since the key-generating values cannot be derived from the key-encrypting keys, they may be used over a period spanning multiple cryptographic sessions without requiring new values or new public key encryptions.
摘要翻译：一个加密密钥恢复系统，分两个阶段运行。在第一阶段，发送者与接收者建立秘密值。对于每个密钥恢复代理，发送者生成密钥生成值作为秘密值的单向函数，并用密钥恢复代理的公钥加密密钥生成值。在针对特定加密会话执行的第二阶段中，发送者针对每个密钥恢复代理生成密钥加密密钥作为对应的密钥生成值的单向函数，并且将密钥加密密钥乘以加密密钥的关键回收剂。加密的密钥生成值和乘法加密的会话密钥与其他恢复信息一起被发送，以允许由寻求恢复秘密值的一方拦截的方式。为了恢复秘密值，寻求恢复方向密钥恢复代理提供加密的密钥生成值和公共恢复信息，密钥恢复代理解密密钥生成值，从相应的密钥生成值重新生成密钥加密密钥，向恢复方提供重新生成的密钥加密密钥。恢复方使用密钥加密密钥来恢复秘密值。由于密钥生成值不能从密钥加密密钥导出，所以它们可以在跨越多个加密会话的时间段内使用，而不需要新的值或新的公钥加密。

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