E F Johnson Company 2425372 Benutzerhandbuch
Draft
December 2006
5300 ES Series Mobile Radio Operating Manual -9
Figure 11.2 Keyset Diagram
11.4.3 Crypto Groups
A crypto group contains up to 16 keysets of the same type of key, either TEK or KEK (see
Section 11.4.1). However, only two keysets are typically used as just described. Crypto
groups are used to help manage keys such as when a radio uses keys with different active
times or multiple algorithms. Currently, only one crypto group is supported, and it is
always ID 0. As shown in Figure 11.3, the crypto group ID is the upper four bits of both
the SLN and Keyset IDs.
Section 11.4.1). However, only two keysets are typically used as just described. Crypto
groups are used to help manage keys such as when a radio uses keys with different active
times or multiple algorithms. Currently, only one crypto group is supported, and it is
always ID 0. As shown in Figure 11.3, the crypto group ID is the upper four bits of both
the SLN and Keyset IDs.
16-Bit Keyset ID
Algorithm ID
Update Item (Opt)
Time/Date (Opt)
Keyset Name (Opt)
Key 1
Key 2
Key 4096
(upper 4 bits are
Crypto Group)
Crypto Group)