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What was the cipher machine used by the Germans for radio communication security called?
There were two main German cypher machines used during WW2:
There were two main German cypher machines used during WW2:
- The Enigma machine was used for low level tactical messages between units in the field. Messages were manually encrypted/decrypted using the machine and sent/received as radio telegrams. There were different versions of the Enigma used by the Army, Navy, Gestapo, SS, etc.
- The Lorenz machine was used to send high level strategic messages between high command and the various generals. Messages were automatically encrypted/decrypted using a standard Baudot teletype for input/output and automatically transmitted/received. There were four different versions of the Lorenz machine (SZ40, SZ42, SZ42A and SZ42B) introduced at different times in the war to improve its security.
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Radio waves being electromagnetic does not need any material medium to get transferred. With high frequency known to be carrier wave this is able to reach far distance. But th…is carrier wave is to carry the signal to be communicated. The signal may be audio or video or any other digital. This would modulate the carrier wave by changing any of the characteristic of the carrier wave namely amplitude, frequency or phase. The modulated carrier wave as it gets transmitted will be received at a far place and demodulated or the signal is detected right from it. This is how radio waves now a days known as micro waves are so helpful in communication systems.
The Caesar cipher is far more easier to break, as it consists of a single shift operation with a total number of 25 keys. Caeser can be cracked within less than a second… by brute force (trying all possible keys). For the enigma machine you have to know which rotors are being used in which order, the initial rotor position, the ring position and the plugboard configuration. With cryptoanalytic approaches Enigma can be cracked as well in decent time. Nevertheless the key space (amount of possible keys) is so large, that simple brute forcing will take a while.
A technician wishes to secure the network authentication for all remote users Which security technology uses radio communication with a computer before accepting a username and password?
A technician wishes to secure the network authentication for all remote users. Key fobs is a security technology that uses radio communication with a computer before accep…ting a username and password.
radio waves transmmit in a particular frequency when a receiver set on particular frequency that catch the information or data of that waves may be contain
Which type of security threat uses a low-power radio signal to cut off communication from a cell phone to a base station?
Jamming Answer Explanation: A jammer can be used to cut off the communication between a cell phone and a base station. Cell phones use radio signals to transmit and receive c…alls through the air. Jamming is accomplished by confusing the cell phone into thinking that there is no base station available to service it.
A radio programme receiver does not need to be directly in view of the transmitter to receive programme signals. For low frequency radio waves diffraction can allow them to be… received behind hills, although repeater stations are often used to improve the quality of the signals.
There are two types of security to consider when using a fax: 1) the security of documents out in public - ensuring that docuements received are properly delt with…, and kept from people that shouldn't see them 2) the security of the transmission of the documents - ensuring that the transmission is secure. In most cases, there is no way to "encrypt" a fax transmission, however there are laws in place regarding wiretapping of phone lines.
Most people had radios.
the frequency used in mobile communication should be greater then 30mhz so cannot be reflected by the ionosphere thats why we are using a frequency of range less ghz so called… "radio waves"
Install inbuilt encryption systems in the hardware of your FAX before sending out confidential data over FAX.
It transmits calls via radio waves to base stations clustered in many service areas
The German ENIGMA coding machine was used to communicate orders from Germany to its deployed U-boats. Early in WWII, the failure to break the ENIGMA code helped lead to signif…icant losses in the Battle of the Atlantic. The Germans believed that the ENIGMA code was unbreakable. The first break for the Allies came when the British destroyer HMS Bulldog successfully boarded and captured an ENIGMA machine and its code books from the German U-boat U-110 in May, 1941. The capture of the ENIGMA machine significantly aided efforts by cryptoanalysts at Bletchley Park in England, where the main British code decryption efforts were being conducted. Eventually Bletchley Park was able to successfully build a computer that would decode all German Naval communications. This feat, as well as the Allies' success at keeping the knowledge from the Germans that ENIGMA had been captured and broken, led to the major downturn for German U-boats in the Atlantic. By the end of the war, German U-boat losses were 70%.
What type of security threat uses modified radio scanners to capture communication and listen to your phone conversations?
There used to be available both portable and desktop programmable scanners available that covered cell phone frequencies. (I have one). They are no longer available from norma…l dealers like Radio Shack, etc. A few bucks in parts and a connecting cable would allow you to record any call intercepted. Could get you cost you too, $ or jail time! They didn't recall those previously sold but the Feds get uptight about miss use of those in public use. I use mine to monitor public service channels. Police, Search and Rescue, even the Airport and Air to Air/Ground frequencies. from an old sergeant
Continuously from the 1890s until now.
Like HTTP over SSL - HTTPS protocol, FTP has designed to support SSL in FTP7 - FTPS protocol. Also Secure child element is included to enhance security configuration in FTP7.
Communication using the radio began with the two-way radio in the war, around the time of 1907. It was five years after that, that military use of the radio became more eviden…t and available in order to make communication between ships.
Communications security is used to prevent unauthorized interceptors from accessing telecommunications. It also controls traffic flow security and emission security.