AUTACK Secure authentication and acknowledgement

Syntax Development Group (SDG)

AUTACK is a message authenticating sent, or providing secure acknowledgement of received interchanges, groups, messages or packages.

A secure authentication and acknowledgement message can be used to:

a) give secure authentication, integrity or non-repudiation of origin to messages, packages, groups or interchanges.

b) give secure acknowledgement or non-repudiation of receipt to secured messages, packages, groups or interchanges.

Header

1. 0010 · UNH · Message header · Max 1 · Mandatory

   To head, identify and specify a message.

2. Segment group 1 Repeat 99

   1. 0030 · USH · Security header · Max 1 · Mandatory

      To specify a security mechanism applied to a EDIFACT structure (i.e.: either message/package, group or interchange).

   2. 0040 · USA · Security algorithm · Max 3 · Conditional

      To identify a security algorithm, the technical usage made of it, and to contain the technical parameters required.

   3. Segment group 2 Repeat 2

      1. 0060 · USC · Certificate · Max 1 · Mandatory

         To convey the public key and the credentials of its owner.

      2. 0070 · USA · Security algorithm · Max 3 · Conditional

         To identify a security algorithm, the technical usage made of it, and to contain the technical parameters required.

      3. 0080 · USR · Security result · Max 1 · Conditional

         To contain the result of the security mechanisms.

3. 0090 · USB · Secured data identification · Max 1 · Mandatory

   To contain details related to the AUTACK.

4. Segment group 3 Repeat 9999

   1. 0110 · USX · Security references · Max 1 · Mandatory

      To refer to the secured EDIFACT structure and its associated date and time.

   2. 0120 · USY · Security on references · Max 9 · Mandatory

      To identify the applicable header, and to contain the security result and/or to indicate the possible cause of security rejection for the referred value.

5. Segment group 4 Repeat 99

   1. 0140 · UST · Security trailer · Max 1 · Mandatory

      To establish a link between security header and security trailer segment groups.

   2. 0150 · USR · Security result · Max 1 · Conditional

      To contain the result of the security mechanisms.

6. 0160 · UNT · Message trailer · Max 1 · Mandatory

   To end and check the completeness of a message.