Translate a Watchword Key from ZMK to LMK Encryption

Command:

Translate a Watchword Key from encryption under a ZMK to encryption under the LMK.

Notes:

If using a 32-character ZMK, the HSM must be configured for double-length ZMKs using the CS (Configure Security) console command.

Field

Length & Type

Details

COMMAND MESSAGE

Message header

m A

(Subsequently returned to the Host unchanged).

ZMK

16H or 32H or
1A+32H or 1A+48H

ZMK encrypted under LMK pair 04-05.

WWK

16H or
1A+32H or 1A+48H

Watchword encrypted under ZMK.

Atalla Variant

1 N or 2 N

Optional. Atalla variant; for use in systems with Atalla equipment.

Delimiter

1 A

Optional. If present the following three fields must be present.  Value “;”.

If an option is not required by the command fill with a valid value or 0.

Reserved

1 A

Optional. If present must be 0.

Key scheme LMK

1 A

Optional. Key scheme for encrypting key under LMK.

Key check value type

1 A

Optional. Key check value calculation method

0 - KCV backwards compatible.

1 - KCV 6H.

End message delimiter

1 C

Optional. Must be present if a message trailer is present. Value X’19.

Message trailer

n A

Optional. Maximum length 32 characters.

Field

Length & Type

Details

RESPONSE MESSAGE

Message header

m A

Returned to the Host unchanged.

Response code

2 A

Value FT.

Error code

2 N

00 : No errors

10 : ZMK parity error

11 : Imported key all zero

12 : No keys loaded in user storage

13 : LMK error; report to supervisor

15 : Error in input data

21 : Invalid user storage index

WWK

16H or
1A+32H or 1A+48H

WWK encrypted under LMK pair 22-23.

Key check value

16 H or 6 H

Result of encrypting 64 binary zeroes with the WWK.

16H or 6H depends upon KCV type option.

End message delimiter

1 C

Present only if present in the command message. Value X’19.

Message trailer

n A

Present only if present in the command message. Maximum length 32 characters.