|
Command: |
Generate a MAC on given data. |
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Notes: |
The value n given for Data is the recommended maximum value; it can be increased towards 2047 (1023 for SNA-SDLC systems) with consideration for the overall buffer size compared to the size of the complete HSM command message. |
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Field |
Length & Type |
Details |
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COMMAND MESSAGE |
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Message header |
m A |
(Subsequently returned to the Host unchanged). |
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Command code |
2 A |
Value MA. |
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TAK |
16H or 1A+32H or 1A+48H |
TAK encrypted under LMK pair 16-17. |
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Data |
0 - n |
The data on which a MAC is to be generated, n = 1024 (512 for SNA-SDLC systems). |
|
End message delimiter |
1 C |
Optional. Must be present if a message trailer is present. Value X’19. |
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Message trailer |
n A |
Optional. Maximum length 32 characters. |
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RESPONSE MESSAGE |
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Message header |
n A |
Returned to the Host unchanged. |
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Response code |
2 A |
Value MB. |
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Error code |
2 N |
00 : No errors 10 : TAK parity error 12 : No keys loaded in user storage 13 : LMK error; report to supervisor 15 : Error in input data 21 : Invalid user storage index. 27 : TAK not single length |
|
MAC |
8 H |
The calculated MAC. |
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End message delimiter |
1 C |
Present only if present in the command message. Value X’19. |
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Message trailer |
n A |
Present only if present in the command message. Maximum length 32 characters. |