[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Clarification of ISO-IEC 18014 documents
A clarification of the ISO 18014 documents may be useful.
ISO-IEC 18014-1-2002 uses the term TS reissue to intend TS renewal in
the terms as expressed in WG communications of late. I quote:
"A timestamp reissue may also be necessary when
the hash-function used to form the hash value from
the original data is called into question. In this case,
both the old timestamp token and the original data
must be included in the newly calculated hash value
submitted for timestamp reissue."
A revision of 18014-1 is in-progress. The term reissue is being
replaced with renewal along with descriptive information that makes the
point clear that a renewal contains a hash of the data along with the
hash of the original TS that is being renewed. The new description is
quite clear in regard to creation and verification of renewal.
Furthermore, ANSI X9.95 is consistent on renewal with those found in
18014-2-2002, 18014-3-2004 and the revision of 18014-1-2002.
I hope this helps.