Jul 20, 2018 software like sdrtrunk and dsdplus can decode p25 phase 1, but at the moment the only software that is capable of decoding p25 phase 1 and 2 is a program called op25. Tutorial on setting up op25 for p25 phase 2 digital voice. Apco project 25 p25 was developed by joint efforts of the association of public safety communications officials international apco, the. P25 phase 2 standard not finalized yet, vocoder is supported by mbelib opensky four slot format vocoder may be supported by mbelib. Digital radio voice communications are becoming more commonly used in the radio spectrum. Will not be supportable if it is determined that voice encryption is standard other formats will only be considered if high quality samples of the signals are made available for download by the developers. Unication p25 phase ii with aes available on 33018 we are picking up our first p2 order in person on friday morning from unication. Digital police scanner p25 apco digital radio scanner. Support for newer p25 phase 2 tdma systems a receiver is implemented, as of march 2015 locate and track the locations of p25 mobile stations. Tutorial on setting up op25 for p25 phase 2 digital voice decoding. Most suburban cities have switched to p25 phase 2 with a lot of them using encryption. The new tait p25 9400 system series supports p25 phase 1 and phase 2 operation and meets the p25 standard for full interoperability. This video demonstrates encrypted tgs, and both phase i and phase 2 tdma tg decoding. Pro96com control channel decoder for p25 trunked radio.
Tested with the aes 256 encryption algorithm and shall be available with aes 256 encryption at a minimum or without any encryption of any type. Read more about p25 portable and mobile, twoway radios and system. Design and implementation of an encryption architecture. Programming does require a different piece of software, that is free, and is only given to system owners. A security analysis of the apco project 25 twoway radio system, by sandy clark, travis goodspeed, perry metzger, zachary wasserman, kevin xu, and matt blaze. Project 25 p25 or apco25 is a suite of standards for digital mobile radio communications designed for use by public safety organizations in north america. However, it is important to have a good plan in place to ensure communication stays secure and the administrative overhead of managing the radios is in line with the level of security required. Encryption in radio communications enables secure communication between parties and is achieved by loading the same key into all radios in a group. Reengineeringpage reengineering and refactoring to support gnuradio 3. Security researchers crack apco p25 encryption slashdot. Grand canyon np phase 1 np federal vhf page 2 of 32. Phase 1 subscriber units typically include backward compatibility to analog operation.
The p25 statement of requirements states that support of analog is mandatory for phase 1 radios and optional for phase 2 radios. Apr 11, 20 the rtlsdr software defined radio combined with sdrsharp and a program called digital speech decoder dsd can be used as a radio scanner to easily and cheaply listen to unencrypted digital radio voice conversations. Software like sdrtrunk and dsdplus can decode p25 phase 1, but at the moment the only software that is capable of decoding p25 phase 1 and 2 is a program called op25. The type of encryption to use depends on the type of information youre protecting. Compliance to project 25 standards for trunked voice systems enables seamless interagency communications and enhanced system capabilities. Kenwood and efj offers an extensive p25 lineup, including the featurepacked nx5000 series, to answer the demanding requirements of todays missioncritical users. Srx 2200 enhanced combat radio the enhanced srx 2200 p25 singleband portable radio supports wifi, adaptive audio engine and bluetooth 4. P25 trunking support capture, track, and log traffic on a p25 trunked radio system. Tait p25 phase 1 and phase 2 solutions tait communications. Mswin compatible p25 phase 2 tdma price guide page 1 of 19 title page. Project 25 p25 or apco25 is a suite of standards for digital mobile radio communications.
Tm9400 mobile p25 phase 2 capable radio the l3harris tm9400 p25 mobile radio, powered by tait, supports multiple modes of operation for easy migration to more spectrallyefficient communications. In summary, p25 makes it very easy to add encryption to a radio system. Irving, carrollton, addison and farmers branch have switched to p25 phase 2 with encryption for the whole city including public works, streets, animal control etc. Unidens bcd996p2 phase ii capable digital basemobile scanner is a fullfeatured design with the serious hobbyist in mind. The apx is ideal for local government and public works users that require a budget friendly p25 phase 2 solution. The systems are the njics and somerset county lsms located in northern nj. This is due to the various improvements offered over traditional analogue voice radio. Pro96com control channel decoder for p25 trunked radio systems. Secure encryption type aes encryption aes, desxl, desofb encryption des, desxl, desofb encryption 3day key retention multikey type multikey p25 otar with multikey tactical rekey with multikey apx radio software. Kenwood tk5x30 twoway radio epl 3744 july 2016 list price ms twoway radio epl 3744 discount.
Watch our police scanner encryption tutorial to learn more. Mapping ber and signal stength of p25 radio systems. Security flaws in encrypted police radios schneier on. The rtlsdr software defined radio combined with sdrsharp and a program called digital speech decoder dsd can be used as a radio scanner to easily and cheaply listen to unencrypted digital radio voice conversations. The s412e offers a cqpsk demodulator for testing these repeaters. Alarms or faults are sent to a central server, and the alarms can generate sms or email alerts, or be monitored in realtime at a network management center. Both are capable of monitoring p25 phase 1 and phase 2 systems and are the first consumergrade scanners based on software defined radio sdr technology. This is, however, optimized for the case of encrypting the key with large volumes of traffic and not key searching. The whistler trx2 is multisystem adaptive digital trunking scanners with motorola p25 phase i, x2tdma, phase ii and dmr making it capable of monitoring the following unencrypted channelssystems. The whistler group is selling the trx1 handheld and trx2 basemobile scanners. There are some references to breaking encryption on a p25 system that i have come across. Catalog apx radio software digital trunking p25 phase i provides p25 phase i fdma digital trunking on narrowband 12. P25 phase 2 forum more information about p25 phase 2. The paper details flaws in the desofb and adp encryption that enable the encryption key to be recovered by.
Sort of scary when the whole city switches to full encrypted communications. Phase2 p25 repeaters use hcqpsk modulation for both simulcast and conventional applications and the s412e offers this modulation as well. If your system and the p25 system are in the same frequency band you can choose a single band radio. An anonymous reader writes two australian security researchers, stephen glass and matt robert, have published a paper that details flaws in the encryption implementation pdf in the apco project 25 digital radio standard, used by emergency services and police departments worldwide.
A channel or group is programmed to use encryption and a key is loaded into each radio that uses that group. Op25 scanning between two different p25 phase ii lsm systems, sounding great. These models are capable of monitoring p25 phase i and phase ii as well as dmr, mototrbo and nxdn transmissions. However, op25 has a reputation of being fairly difficult to set up as it does not have a simple to use gui, and requires linux.
Both are capable of monitoring p25 phase 1 and phase 2 systems and are the first consumergrade scanners based on softwaredefined radio sdr technology. Apco project 25a p25 is a suite of wireless communications protocols used in the us and. More information about p25 phase 2 p25 phase 2 refers to p25 requirements and standards for a digital common air interface cai, time division multiple access tdma based, which provides one voice channel per 6. Security flaws in encrypted police radios why special agent johnny still cant encrypt. Design and implementation of an encryption architecture for. Fyi, all g4 and g5 pagers have aes encryption built in. Unication p25 phase ii with aes available on 33018 fyi, all g4 and g5 pagers have aes encryption built in.
P25 encryption and interoperability introduction encryption in a p25 radio is an option feature to enable secure voice and data communication. The research is part of the op25 project, which uses gnuradio to implement a p25 stack using software defined radio. With an advanced digital decoding system and large memory bank, the uniden bearcat bcd996p2 scanner is an extremely powerful and useful police scanner. Whereas my existing work from 2011 worked on a motorola smartnet system with regular analog fm audio channels, this new system would be p25 with tdma. Tait p25 solutions are fully compliant with tia p25 standards, offer software upgradeability to phase 2, meet iecex and atex standards, and provide a range of other features to exceed the changing compliance requirements of the public safety sector. To improve spectrum use, p25 phase 2 was developed for trunking systems using a 2slot tdma scheme and is now required for all new trunking systems in the 700 mhz band. P25 phase i nxdn 9600 uniden bc346xt disc tap 10k ohm resistor.
P25 mission critical viking vp5000 wf communications. P25 encryption and interoperability industrial communications. Encryption solutions etherstack radio and wireless. If its truly encrypted voice your ability to crack the crypto is probably going to be quite an undertaking. Project 25 phase 2 tdma decoding in software works over a year ago, i started worrying about what would become of my softwarebased scanner site after the county built their new radio system. A bitsliced implementation carefully optimized for key searching. Des encryption software key loader for kwdae31k authentication by kpt300lmc is required note. Etherstacks p25 security suite unites our aesdes p25 encryption engine. Phase ipi is 4800 symbols per second where each symbol encodes two bits of data for a raw bit rate of 9600 bps. The uniden bearcat bcd436hp phase 2 digital police scanner is the first scanner to incorporate the homepatrol1 ease of use in a traditional handheld scanner. Adp software encryption isnt as secure as des or aes. Phase1 simulcast repeaters use a special cqpsk modulation optimized for simulcasting. The report did not find any breaks in the p25 encryption.
Decoding digital voice p25, dmr, nxdn, dstar with dsd the rtlsdr software defined radio combined with sdrsharp and a program called digital speech decoder dsd can be used as a radio scanner to easily and cheaply listen to unencrypted digital radio voice conversations. The radio delivers clear voice communication, data capability, security and multivendor interoperability. P25 trunking, p25 phase 2 tdma, aes256 encryption, p25 data for short messagestatus updatemessage update interoperability tests only frequency bands. Uniden phase 2 capable police scanner apco p25 digital. University of california, san diego design and implementation of an encryption framework for apco p25 using an open source sdr platform in an ossie environment. Software like sdrtrunk and dsdplus can decode p25 phase 1, but at. Uniden bearcat bcd996p2 phase ii digital police scanner. A group of radios may be assigned a unique encryption key to allow users to communicate securely. The checked box indicates how the product was tested. P25 conventional systems march 2017 state system name p25 comments system user freq.
Conventional dmr entered as a dmr trunked system, hytera xpt, mototrbo capacity plus, mototrbo connect plus, and mototrbo linked cap plus. Apco p25 decoder plugin for wrg305 series receivers this apco p25 decoder plugin makes it possible to receive and listen to digital apco p25 phase 1 channels on winradio wrg305 series receivers. The current standards effort focuses on 2slot tdma which provides two voice traffic channels in a 12. However if the agency in question changes the keys over. As most p25 networks are ipconnected, fault management is often carried out using the standard ip techniques such as snmp or simple network management protocol.
Apco p25 decoder plugin for wrg305 series receivers. May 04, 2016 op25 scanning between two different p25 phase ii lsm systems, sounding great. In order to pass the supported encryption test case, a subscriber with the aes256 encryption capability is required. The whistler group is selling the trx1 handheld and trx 2 basemobile scanners. P25 phase 1 conventional, trunking and phase 2 trunking capable dhs p25 cap certified tia102 compliant for multiple vendor interoperability optional fips compliant aes encryption unit p25 voting scan p25 conventional mode up to 1024 channel capacity with 128 zones ip68 waterproof protection 1 m depth1 hour. Encryption, voice and data, simulcast support and pre set status messages. Support for newer p25 phase 2tdma systems a receiver is implemented, as of march 2015 locate and track the locations of p25 mobile stations. Apx p25 portable radio durable and compact with quality p25 features in an easy to use design. The paper details flaws in the desofb and adp encryption that enable the. Emergencyweather alert covers us and canada quick record and playback simple programming expert programming available. Tait offers a unique p25 ecosystem with industry leading software. Des uses a 56bit encryption key and aes uses a 256bit encryption key. P25 radios are a direct replacement for analog uhf typically fm radios, but add the ability to transfer data as well as voice, allowing for more natural implementations of encryption and text messaging.