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TIA-102.AACA

Project 25 Digital Radio Over-the-Air Rekeying (OTAR) Protocol Addendum 2 – Data Link Independent OTAR

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Organization: TIA
Publication Date: 13 March 2003
Status: inactive
Page Count: 46
scope:

This addendum specifies a method to transport Over The Air Rekeying (OTAR) Key Management Messages (KMMs) between a Key Management Facility (KMF) and an Mobile Radio (MR) that is independent of the physical and data transport layers. It defines optional key management procedures for Registration and Deregistration of the MR with the KMF. An Unable-To-Decrypt message has also been defined to respond to a message that was received and could not be decrypted. The addendum supplements the information contained in the TIA/EIA 102.AACA APCO Project 25 Over-The-Air-Rekeying (OTAR) Protocol document (reference [1]) and in TIA/EIA 102.AACA-1 Key Management Security Requirements For Type 3 Block Encryption Algorithms (reference [2]).

To allow for data link independent transport of KMMs, the encryption synchronization (ESYNC) has been appended to the beginning of the KMM and is included as part of the data packet. The method defined in the addendum may be used with any KMM that is defined in the OTAR Protocol standard (reference [1]).

Document History

September 1, 2021
Project 25 Digital Radio Over-The-Air-Rekeying (OTAR) Messages and Procedures
The TIA-102 suite of documents describes the interfaces associated with a system for public safety land mobile radio communications. These systems include subscriber units, base stations and other...
November 6, 2020
Project 25 Digital Radio Over-The-Air-Rekeying (OTAR) Messages and Procedures- Addendum 1
Addendum Scope This addendum provides the following enhancements to the OTAR Messages and Procedures (TIA-102.AACA-A) standard: 1. Clarify the use of the Key ID field for single-key and multi-key...
September 10, 2014
Project 25 Digital Radio Over-The-Air-Rekeying (OTAR) Messages and Procedures
The TIA-102 suite of documents describes the interfaces associated with a system for public safety land mobile radio communications. These systems include subscriber units, base stations and other...
TIA-102.AACA
March 13, 2003
Project 25 Digital Radio Over-the-Air Rekeying (OTAR) Protocol Addendum 2 – Data Link Independent OTAR
This addendum specifies a method to transport Over The Air Rekeying (OTAR) Key Management Messages (KMMs) between a Key Management Facility (KMF) and an Mobile Radio (MR) that is independent of the...
November 27, 2002
Project 25 Digital Radio Over-the-Air-Rekeying (OTAR) Protocol Addendum 1 – Key Management Security Requirements for Type 3 Block Encryption Algorithms
Introduction This addendum specifies the general security requirements to be used when transmitting Type 3 Key Management Messages (KMMs) as defined in the Over The Air Rekeying (OTAR) Protocol...
April 12, 2001
Project 25 Digital Radio Over-the-Air Rekeying (OTAR) Protocol
The Project 25 standard covers all of the parts of a system for public safety land mobile radio communications. These systems include subscriber units, base stations and other fixed equipment. The...
December 1, 2000
Project 25 over-the-Rekeying (OTAR) Protocol Addendum
A description is not available for this item.
January 1, 1996
APCO Project 25 Over-The-Air-Rekeying (OTAR) Protocol New Technology Standards Project Digital Radio Technical Standards
A description is not available for this item.

References

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