![]() You can use both types of encryption in an Analog medium. Radio Encryption Background We basically have two types of radio transmission mediums: 1. I will outline a few possibilities here, but first, a little background. The basic rule of thumb is: the more you spend, the better your encryption. APCO P25 encryption is now (publicly) vulnerable to third party reception via a sophisticated brute force attack on the encryption scheme. P25 may be used in 'talk around' mode without any intervening equipment between two radios, in conventional mode where two radios communicate through a repeater or base station without trunking or in a trunked mode. P25 radios can communicate in analog mode with other legacy radios and they can communicate with other P25 radios in analog or digital mode. There are different forms and security levels of encryption. Encryption The only way to achieve COMSEC is through encryption. ![]() If at any time you feel your radio communications are vulnerable you have completely lost OPSEC. ![]() The key is like a secret number or password that must be known in order to decrypt the call. Once you have achieved COMSEC you can feel free that any use of your radio communications gear will not effect OPSEC.Įncryption in radio communications enables secure communication between parties and is achieved by loading the same key into all radios in a group. COMSEC consists of securing your communications well enough that your internal communications can not be monitored. Whether we are talking about security of a SWAT or SRT team, or the personal safety to Search & Rescue Team members, OPSEC is paramount. OPSEC means the security of the complete operation. Though quite different in overall meaning, both terms go hand in hand and you can not achieve one without the other. ![]() OPSEC and COMSEC Two key elements in Tactical Operations are OPSEC (operational security) and COMSEC (communications security). ![]()
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