Тезис 

ISO/IEC 18014-2:2002 describes time-stamping services producing independent tokens. It describes a general model for time-stamping services of this type and the basic components used to construct a time-stamping service of this type, it defines the data structures and protocols used to interact with a time-stamping service of this type, and it describes specific instances of such time-stamping services.

The usage of independent tokens presumes a high trust on the time-stamping authority (TSA).

Three independent mechanisms are currently covered:

Time-stamps using digital signatures

In this mechanism the TSA has an asymmetric key pair, and uses the private key to digitally sign the time-stamp token. Signature verification will use the public key. This mechanism may require the use of a PKI (Public Key Infrastructure).

Time-stamps using message authentication codes

In this mechanism the TSA uses a secret key to digitally bind the time association. The time-stamp token is authenticated using a Message Authentication Code (MAC). When using this mechanism, the TSA is needed to carry out the verification.

Time-stamps using archiving

In this mechanism the TSA returns a time-stamp token that only has reference information to bind the time-stamp to the messageImprint in the time-stamp token. The TSA archives locally enough information to verify that the time-stamp is correct.


Общая информация

  • Текущий статус :  Withdrawn
    Дата публикации : 2002-12
  • Версия : 1
    Число страниц : 28
  • :
    ISO/IEC JTC 1/SC 27
    Information security, cybersecurity and privacy protection
  • 35.030
    IT Security

Жизненны цикл

Стандарт, который пересматривается каждые 5 лет



Изменения / Исправления

  • В настоящее время отменен
    ISO/IEC 18014-2:2002
  • Пересмотрен
    ISO/IEC 18014-2:2009

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