Secure Operation

(Secure Wide, General)

Selects the secure encrypted communications mode that is used on a radio wide basis.

When a Secure / Clear Strapping field is set to "Select" for a certain channel, either the Secure Tx Select button-press, Secure Tx Select switch-toggle, or the Secure menu-selection allows the radio-user to toggle between Secure or Clear communications for that channel.

When the Tactical Inhibit Enable field is enabled, this field can only be set to "Disabled" or "Hardware"; otherwise, the CPS considers it invalid.

When the radio is a model / option capable.

SELECTIONS:	DEFINITIONS:
Disabled	Secure encryption is not possible.
Hardware	Encryption Services are performed by a separate hardware IC that is certified at FIPS (Federal Information Processing Standard) 140-2 levels 2 and 3, depending on the configuration of the Red Key Fill parameter, and can support multiple drop-in encryption algorithms for higher security. Newly-installed three-day key retention secure circuitry requires sufficient time to charge before FLASHing a radio's secure-capable codeplug can succeed. For such a case, the radio should be attached to power for two minutes before attempting to FLASH the codeplug. The APX™ 2000 1.5, APX™ 4000 Li 1.5, APX™ 4000 Li 2, and APX™ 4500 Li models do not support the Motorola Advanced Cryptographic Engine (MACE) module; therefore, for the codeplugs of these models, this selection is invalid. The APX™ 1000 models do not support the Motorola Advanced Cryptographic Engine (MACE) module; therefore, for the codeplugs of these models, this selection is unavailable.
Advanced Digital Privacy (ADP) Not possible for Type II Trunking	Encryption Services are performed by a software implementation of the RC-4 algorithm which is not subject to any FIPS certification level.