DE69028894D1 - Einrichtung zur notariellen Beglaubigung des Datums und der Zeit mittels öffentlichem Schlüssel - Google Patents

Einrichtung zur notariellen Beglaubigung des Datums und der Zeit mittels öffentlichem Schlüssel

Info

Publication number
DE69028894D1
DE69028894D1 DE69028894T DE69028894T DE69028894D1 DE 69028894 D1 DE69028894 D1 DE 69028894D1 DE 69028894 T DE69028894 T DE 69028894T DE 69028894 T DE69028894 T DE 69028894T DE 69028894 D1 DE69028894 D1 DE 69028894D1
Authority
DE
Germany
Prior art keywords
secure
hardware platform
digital clock
storage device
timestamped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69028894T
Other languages
English (en)
Other versions
DE69028894T2 (de
Inventor
Addison M Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE69028894D1 publication Critical patent/DE69028894D1/de
Publication of DE69028894T2 publication Critical patent/DE69028894T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/86—Secure or tamper-resistant housings
    • G06F21/87—Secure or tamper-resistant housings by means of encapsulation, e.g. for integrated circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
DE69028894T 1989-10-13 1990-05-29 Einrichtung zur notariellen Beglaubigung des Datums und der Zeit mittels öffentlichem Schlüssel Expired - Lifetime DE69028894T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/421,104 US5001752A (en) 1989-10-13 1989-10-13 Public/key date-time notary facility

Publications (2)

Publication Number Publication Date
DE69028894D1 true DE69028894D1 (de) 1996-11-21
DE69028894T2 DE69028894T2 (de) 1997-04-03

Family

ID=23669180

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69028894T Expired - Lifetime DE69028894T2 (de) 1989-10-13 1990-05-29 Einrichtung zur notariellen Beglaubigung des Datums und der Zeit mittels öffentlichem Schlüssel

Country Status (7)

Country Link
US (1) US5001752A (de)
EP (1) EP0422757B1 (de)
JP (1) JPH03185551A (de)
AT (1) ATE144360T1 (de)
AU (1) AU624299B2 (de)
CA (1) CA2018770C (de)
DE (1) DE69028894T2 (de)

Families Citing this family (194)

* Cited by examiner, † Cited by third party
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EP0422757A3 (en) 1992-10-21
EP0422757A2 (de) 1991-04-17
US5001752A (en) 1991-03-19
JPH03185551A (ja) 1991-08-13
AU5753190A (en) 1991-04-18
CA2018770A1 (en) 1991-04-13
CA2018770C (en) 2007-08-14
AU624299B2 (en) 1992-06-04
ATE144360T1 (de) 1996-11-15
DE69028894T2 (de) 1997-04-03
EP0422757B1 (de) 1996-10-16

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