Secure Modules; Introduction - Motorola ASTRO Digital Saber Service Manual

Secure Modules

Introduction

The secure modules are designed to digitally encrypt and decrypt voice
and ASTRO data in ASTRO SABER™ radios. This section covers the
following secure modules:
• NTN7770
• NTN7771
• NTN7772
• NTN7773
• NTN7774
• NTN7329
• NTN7332
• NTN7331
• NTN3330
• NTN7370
• NTN1146
NOTE: The secure modules are NOT serviceable. The
information contained in this chapter is only
meant to help determine whether a problem is due
to a secure module or the radio itself.
The secure module uses a custom encryption integrated circuit (IC)
and an encryption key variable to perform its encode/decode function.
The encryption key variable is loaded into the secure module, via the
radio's universal (side) connector, from a hand-held, key variable
loader (KVL). The encryption IC corresponds to the particular
encryption algorithm purchased. The encryption algorithms and their
corresponding kit numbers are:
KITS:
DVP
DES
DES-XL
DVI-XL
DVP-XL
DVI-XL & DVP
DES-XL & DVP
DES-XL & DVP-XL
DVP & DVP-XL
DVP-XL & DVI-XL
All, except DVP
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• NTN1152
• NTN1153
• NTN1158
• NTN1147
• NTN1367
• NTN1368
• NTN1369
• NTN1370
• NTN1371
• NTN8967
TANAPAS:
DVP
NTN7770
DES
NTN7771
DES-XL
NTN7772
DVI-XL
NTN7773
DVP-XL
NTN7774
DVI-XL & DVP
NTN7329
DES-XL & DVP
NTN7332
DES-XL & DVP-XL
NTN7731
DVP & DVP-XL
NTN7330
DVP-XL & DVI-XL
NTN7370
NTN8967
NTN1146
NTN1152
NTN1153
NTN1158
NTN1147
NTN1367
NTN1368
NTN1369
NTN1370
NTN1371
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