Digital encryption video

A video showing how Digital Encryption ruin's a fun day of simple hobbist scanning.

Category:

Science & Technology

Tags:

• Digital
• Encryption
• BCD996t
• analog
• digital
• scanner

[file83]

Why don't you guys just order those quantum decrypting demodulators from China off eBay? Ooops.....did I just say that?

[alpinestarslidar]

@file83 Because, they do not send the encryption algorithms through the radio transmissions. This is not simplistic encryption. Even if you did eventually crack the keys to the encryption they rekey them every 24 hrs or less. Making your little decryption boxes pointless. It took a kid in Croatia 23 1/2 hrs. to break the code with the at the time 3 yr's ago the fastest supercomputer known to man. Good luck. I doubt some cheap Chinese decryption box is going to decipher the hidden messages.

[Skumling]

Why don't you use CTCSS on it?!

[alpinestarslidar]

@Skumling Let's see Skumling, perhaps because this is "digital system's" Not analog that require ctcss coding, and ctcss coding doesn't keep you from hearing anything. It's only for transmission purposes. It may help you distinguish someone talking close by on a like frequency but that's merely all, this feature is not used on the digital comms. As it's not nessacary.

[alpinestarslidar]

Thankyou XxzombielandxX I agree. That would be some motorist friendly legislation.

[XxzombielandxX]

I believe cops have computers in there cars now. If perivate info/data is exchanged it should be done there and there only. I guess encription will get them off their goddam cell phones so they can use the blinker and obey other driving laws that they dont have time to do now. The mainframe keeps all calls that were transmitted maybe there should be a book in pdf. published that can be requested at the end of every month.

[alpinestarslidar]

@XxzombielandxX I strongly disagree. What ever happened to your 1st amendment right's of freedom of the press? Why is the press, and their associated members not allowed to know what is being discussed behind closed door's? My question, "What is it we are trying so briskly to hide?" What don't we want the press to know about? They even brag on the pages for these chip's about, "How they shall keep media station's from hearing about potential news event's."

[EYEOFASERPENT]

Like alpine said. Not simple encryption. The radio I am assigned uses multiple types of encryption and changes day to day along with the keys. One day it could be ADP, next DES OFB type and so on. It is called OTAP. It is rekeyed a couple times a day and the codeplugs are also encrypted with a password changed daily with OTAP within a few seconds to less then a minute. The whole agency is done. Usually only a couple of people know in admin what it is. Even they have a admin watching them.

[p99qa40]

is it p25 with voice inversion and des xl or dvp xl ??? 

[SnrSergntNEDDY]

Christchurch NewZealand police use p25 encryption, recently a small FM transmitter bug was located in a police vehicle, it had been planted and was broadcasting what was heard, $19.95c and the million dollar system was beaten

[fireman3130]

Bushes patriotic (non-patriotic) laws have had alot to do with Encryption

[file83]

@alpinestarslidar That "WOOSH" sound you just heard was the joke flying over your head.

[aetechllc]

@file83

Exactly! 

[w9x7cv3vg6]

well I think that if the system can make gear for them to be able to decode then our scanner makers may soon come across the same technology to be put in scanners but we need to be able to recive the cell frequencies from say 820 to 848 mhz, with the ap25 card,wouldnt that mess their minds up.I have two receivers now that have non stop but I cannot get the digital,I wonder if a ap25 card could be engenered into a yaesu vr-5000 ie..thanks

[Skumling]

@alpinestarslidar Thank you :)