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- |
C |
1 |
- |
Service string advice |
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This segment is used to inform the receiver of the interchange that a set of service string characters which are different to the default characters are being used. |
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- |
M |
1 |
- |
Interchange header |
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This segment is used to envelope the interchange, as well as to identify both, the party to whom the interchange is sent and the party who has sent the interchange. The principle of the UNB segment is the same as a physical envelope which covers one or more letters or documents, and which details, both the address where delivery is to take place and the address from where the envelope has come. |
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- |
M |
1 |
- |
Message header |
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This segment is used to head, identify and specify a message. |
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| |
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- |
C |
99 |
- |
USL-SG5 |
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A group of segments containing lists of certificates or public keys. The group shall be used to group together certificates of similar status - i.e., which are still valid, or which may be invalid for some reason. |
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| |
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- |
M |
1 |
- |
Security list status |
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A segment identifying valid, revoked, unknown or discontinued items. These items may be certificates (e.g., valid, revoked) or public keys (e.g., valid or discontinued). |
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| |
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- |
M |
9999 |
- |
USC-USA |
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A group of segments containing the data necessary to validate the security methods applied to the message/package, when asymmetric algorithms are used (as defined in Part 5 of ISO 9735). This group shall be used in the delivery of lists of keys or certificates of similar status. |
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- |
M |
1 |
- |
Certificate |
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This segment either contains information regarding the certificate, and identifies the certification authority which has generated the certificate, or is used to identify bilaterally interchanged signature keys. |
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| |
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- |
C |
3 |
- |
Security algorithm |
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This segment is used to identify a security algorithm, the technical usage made of it, and contains the technical parameters required in order to generate the digital signature. |
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| |
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- |
M |
1 |
- |
Message trailer |
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A service segment ending a message, giving the total number of segments and the control reference number of the message. |
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| |
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- |
M |
1 |
- |
Interchange trailer |
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This segment is used to provide the trailer of an interchange. |
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