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    • 5. 发明授权
    • Method and system for securing communications in a metering device
    • 用于确保计量装置中通信的方法和系统
    • US08208633B2
    • 2012-06-26
    • US12276523
    • 2008-11-24
    • Robert A. CorderyFrederick W. Ryan, Jr.Yassir Nawaz
    • Robert A. CorderyFrederick W. Ryan, Jr.Yassir Nawaz
    • H04L9/00
    • G06F21/608G06F21/606H04L9/0662H04L9/0869H04L9/3242
    • A method and system for securing the communication link between the accounting device and printer of a metering system by authenticating the data being sent via the link utilizing a Nonlinear Feedback Shift Register (NLFSR) based system is provided. A NLFSR is provided in each of the accounting unit and printing unit of a metering system. The NLFSR in the accounting unit is utilized to generate a message authentication code (MAC) for the image data being sent from the accounting unit to the printing unit. The printing unit generates a corresponding MAC for the received image data using the NLFSR in the printing unit. The MAC generated by the printing unit is compared with the MAC generated by the accounting unit. If the MACs are similar, the image data is accepted as authentic and the printing unit will print the image corresponding to the image data.
    • 提供了一种用于通过基于非线性反馈移位寄存器(NLFSR)的系统认证通过链路发送的数据来确保计费系统的计费装置和打印机之间的通信链路的方法和系统。 在计量系统的每个计帐单元和打印单元中都提供一个NLFSR。 会计单元中的NLFSR用于生成从计费单元发送到打印单元的图像数据的消息认证码(MAC)。 打印单元使用打印单元中的NLFSR为接收的图像数据生成相应的MAC。 由打印单元生成的MAC与由计帐单元生成的MAC进行比较。 如果MAC相似,则图像数据被接受为真实的,并且打印单元将打印与图像数据相对应的图像。
    • 8. 发明授权
    • E-mail system and method having certified opt-in capabilities
    • 具有认证选择功能的电子邮件系统和方法
    • US07971061B2
    • 2011-06-28
    • US11636816
    • 2006-12-11
    • Robert A. CorderyJohn F. BraunRonald P. Sansone
    • Robert A. CorderyJohn F. BraunRonald P. Sansone
    • H04L9/32H04L29/06G06F15/16
    • H04L9/321H04L9/3247H04L9/3263H04L51/12H04L63/0823H04L63/12H04L2209/60
    • An opt-in email system in which a recipient that has opted in to an email list can recognize and trust that an email has actually come from a desired sender. When a recipient desires to opt-in to an e-mail list, the recipient is sent to a trusted third party certification service that generates a certificate associated with a key pair. A key is maintained at the sender's location by a secure cryptographic device that can verify the certificate and create a signature, using a key of the key pair, for messages intended for the recipient. When a message intended for the recipient is received from the sender, the signature will be verified based on the status of the certificate and the corresponding key of the key pair. If the signature does not verify, it indicates that the recipient has not opted-in to receive emails from this sender.
    • 选择加入电子邮件系统,其中选择加入电子邮件列表的收件人可以识别并相信电子邮件实际上来自所需的发件人。 当收件人希望选择加入电子邮件列表时,收件人将被发送到生成与密钥对关联的证书的受信任的第三方认证服务。 密钥由安全加密设备保持在发送者位置,该密码设备可以使用密钥对的密钥来验证证书并创建签名,用于发送给接收者的邮件。 当从发送者接收到用于接收者的消息时,将基于证书的状态和密钥对的相应密钥验证签名。 如果签名未验证,则表示收件人未选择接收来自此发件人的电子邮件。
    • 9. 发明申请
    • SYSTEM AND METHOD FOR PROVIDING GRAPHIC SECURITY TO A DOCUMENT AT THE TIME OF PRINTING
    • 在印刷时向文件提供图形安全的系统和方法
    • US20110148958A1
    • 2011-06-23
    • US12641541
    • 2009-12-18
    • Bertrand HaasRobert A. Cordery
    • Bertrand HaasRobert A. Cordery
    • B41J29/38
    • H04N1/32203B41J2/08H04N1/32106H04N1/32219H04N1/32235H04N2201/3271H04N2201/3274
    • A method of printing an image having a graphic security element included therein includes receiving main image data representing a main image, receiving graphic security element data representing a graphic security element to be included in the main image, receiving a request to print the main image, responsive to receiving the request to print the main image, determining particular pixels of the main image data that are to be shifted based on the graphic security element data, and causing a plurality of ink deposits to be deposited on the print medium based on the main image data including causing the position of each of the ink deposits on the print medium that is determined to correspond to shifted pixels to be shifted relative to a normal position that would normally result from the main image data. Also, system that implements the method is provided.
    • 一种打印具有图形安全元件的图像的方法包括接收表示主图像的主图像数据,接收表示要包括在主图像中的图形安全元件的图形安全元件数据,接收打印主图像的请求, 响应于接收到打印所述主图像的请求,基于所述图形安全元素数据确定要移位的所述主图像数据的特定像素,以及基于所述主图像将多个墨沉积物沉积在所述打印介质上 图像数据包括导致确定为对应于移动的像素的打印介质上的每个墨水沉积物相对于通常由主图像数据产生的正常位置移动的位置。 此外,还提供了实现该方法的系统。