| Secure Telephone |
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| CATEGORIES ABOUT SECURE TELEPHONE | |
| cryptographic hardware | |
| telecommunications equipment | |
| secure communication | |
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A secure telephone is a Telephone that provides Voice Security in the form of end-to-end Encryption for the telephone call, and in some cases also the mutual Authentication of the call parties, protecting them against a Man In The Middle attack. The practical availability of secure telephones is restricted by several factors; notably politics, Export Issues , incompatibility between different products (the devices on each side of the call have to talk the same protocol), and high (though recently decreasing) price of the devices. The best-known product on the US government market is the STU-III family. However, this system has now been replaced by the Secure Terminal Equipment (STE) and SCIP standards which defines specifications for the design of equipment to secure both data and voice. The SCIP standard was developed by the NSA and the US DOD to derive more Interoperability between secure communication equipment. The concerns about massive growth of Telephone Tapping incidents lead to growing demand for secure telephones. Several companies offer their products, eg. dutch CryptoPhone , or the secure telephone division of Siemens AG . There are also software solutions available for secure VoIP . The most popular one is Skype , providing end-to-end encryption for PC-to-PC calls, though as it is closed-source, its security cannot be definitively verified. Product of historical significance are PGPfone and Nautilus (designed as a non- Backdoor ed alternative to Clipper ), and now officially discontinued (but continuing living on SourceForge ) ''SpeakFreely'', and the security VoIP protocol wrapper Zfone developed by the creator of PGP . SEE ALSO EXTERNAL LINKS |
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