Specifications

P25 Development Guide
www.bluebamboo.com
43
REQUEST:
Eg Data
Content
Length Explain
C0 1 start of frame
80 1 CT_ENCRYPT_WITH_MASTER
36 1 data id
30 30 33
35
4 data len
01 1 Version
01 1 key id
01 1 Algor, ENCRYPT_ALG_3DES
ENCRYPTED_WITH_MASTER_KEY(CMD_SET_SESSION_KEY,SE
SSION_KEY,CRC,PADDING)
after decrypt, it would be:
Eg data
content Length Explain
85 1 CMD_SYNC_SESSION_KEY_DOWN_
REQ
20
87...B6
2A
32
??...?? 24 24 bytes session_key
2F 06 2 CRC
C1 1 end of frame
RESPONSE:
Eg Data Content Length Explain
C0 1 start of frame
8C 1 CMD_SET_MASTER_KEY_DOWN_RESPONSE
36 1 data id
30 30 30 34 4 data len
01 1 Version
01 1 Algor, ENCRYPT_ALG_3DES
01 1 key id
00 1 result
08 E1 2 CRC
C1 1 frame end