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API STD 521: Guide for Pressure-relieving and Depressuring Systems – Edition 6

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ISO 14533:2019

ISO 14533:2019 Processes, data elements and documents in commerce, industry and administration – Long term signature profiles – Part 4: Attributes pointing to (external) proof of existence objects used in long term signature formats (PoEAttributes)

CDN $336.00

SKU: 48a7f83bad1d Category:

Description

This document specifies the elements defined in the international standards of ISO/ITU-T, ETSI and IETF RFC that enable at least a proof of existence of data objects and digital signatures and the preservation of the validity status of digital signatures over a long period of time used in validation.

It provides the definitions of the proof of existence (PoE) attributes and clarification of the usage of (external) PoE objects, with digital signatures and trusted time values, which have already existed and can be used by the PoE attributes pointing to (external) PoE objects used in long term signature validation or preservation.

Edition

1

Published Date

2019-08-27

Status

PUBLISHED

Pages

37

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document specifies the elements defined in the international standards of ISO/ITU-T, ETSI and IETF RFC that enable at least a proof of existence of data objects and digital signatures and the preservation of the validity status of digital signatures over a long period of time used in validation.

It provides the definitions of the proof of existence (PoE) attributes and clarification of the usage of (external) PoE objects, with digital signatures and trusted time values, which have already existed and can be used by the PoE attributes pointing to (external) PoE objects used in long term signature validation or preservation.

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