SYSTEM AND METHOD FOR MANAGEMENT OF POSTAGE METER LICENSES
    27.
    发明公开
    SYSTEM AND METHOD FOR MANAGEMENT OF POSTAGE METER LICENSES 有权
    系统和方法用于管理FRANKIERMASCHINENLIZENZEN

    公开(公告)号:EP1064621A4

    公开(公告)日:2001-07-18

    申请号:EP99912649

    申请日:1999-03-18

    发明人: NACLERIO EDWARD J

    IPC分类号: G06Q50/00 G07B17/00 G09C1/00

    摘要: A system is provided in which a single postal security device (20, 40, 44) has a secure housing, and within the secure housing are two or more accounting register sets (31, 51a, 51b, 51c). Importantly, the two or more accounting register sets (31, 51a, 51b, 51c) are associated with distinct meter licenses (32, 52a, 52b, 52c). Alternatively, the single postal security device (20, 40, 44) can store a single accounting register set (31, 51a, 51b, 51c), but is able to transfer the register set (31, 51a, 51b, 51c) to a nonsecure store (71) such as the hard drive of a personal computer, the register set having been cryptographically signed (72). Later the register set (72) may be retrieved from the nonsecure store (71) and cryptographically authenticated, and restored to its location within the secure housing of postal security device (20, 40, 44). In this way, the postal security (20, 40, 44) may provide service under more than one distinct meter license (32, 52a, 52b, 52c). In a related embodiment, a single meter license (32, 52a, 52b, 52c) is associated with more than one postal security device (20, 40, 44), each with its own secure housing. Each register set (31, 51a, 51b, 51c) is configured to permit being reset (refilled with postage) by means of a cryptographically secure exchange of data over a communications channel (23, 25, 30, 41, 45) to external equipment such as a manufacturer's server (24) or a server (26) operated by the post office.

    Public key/signature cryptosystem with enhanced digital signature certification
    30.
    发明公开
    Public key/signature cryptosystem with enhanced digital signature certification 无效
    具有增强数字签名认证的公钥/签名CRYPTOSYSTEM

    公开(公告)号:EP0328232A3

    公开(公告)日:1990-12-12

    申请号:EP89300117.2

    申请日:1989-01-06

    IPC分类号: H04L9/00

    摘要: A public key cryptographic system is disclosed with enhanced digital signature certification which authenticates the identity of the public key holder. A hierarchy of nested certifications and signatures are employed which indicate the authority and responsibility levels of the individual whose signature is being certified. The present invention enhances the capabilities of public key cryptography so that it may be employed in a wider variety of business transactions, even those where two parties may be virtually unknown to each other. Counter-signature and joint-signature requirements are referenced in each digital certification to permit business transactions to take place electronically, which heretofore often only would take place after at least one party physically winds his way through a corporate bureaucracy. The certifier in constructing a certificate generates a special message that includes fields identifying the public key which is being certified, and the name of the certifiee. In addition, the certificate constructed by the certifier includes the authority which is being granted including information which reflects issues of concern to the certifier such as, for example, the monetary limit for the certifiee and the level of trust which is granted to the certifiee. The certificate may also specify cosignature requirements which are being imposed upon the certifiee.