H4RJf0jBVUs/VVTkeddp2cI/AAAAAAAAA5s/OAmF6SQuw9o/s640/blogger-image-1159005505.jpg' alt='How Long Does It Take To Crack 3des Game' title='How Long Does It Take To Crack 3des Game' />How does encryption work Gary explains. Jojo`S Fashion Show 3 Full here. You probably use encryption, in one form or another, every day. How Long Does It Take To Crack 3des OumYou might not know that you are, but you are. And my guess is that you dont give it a second thought. Do you have a subscription based cable or satellite TV service Guess what, some of that content will be encrypted. Do you connect to websites using https Thats more encryption. Ever created a. zip file with a password You got it, that uses encryption. I could go on and a list dozens of other examples of every day encryption, but I wont. As for Android, it also supports encryption, not only for the web with https but also for your files and data. Android 6. Marshmallow used full disk encryption, while Android 7. Nougat has added the option for per file encryption. How Long Does It Take To Crack 3Des' title='How Long Does It Take To Crack 3Des' />The idea is that if your phone should fall into the hands of unfriendlies, then your private data is secure. So what is encryption It is the process of taking plain data, including text, and converting it into an unreadable by humans or computers form. The encryption process is based on a key, the analogy here being a lock which needs a key, and only people with the key can unlock decrypt the data and put it back into its original form. This means that anyone who gets hold of your encrypted data cant read it unless they have the key. As the Tom Jericho character in the excellent film Enigma put it, It turns plain text messages into gobbledygook. A PGP does not protect you if you use your secret key on a compromised system, i. At the command prompt. If the system says Bad command or file name, then you dont have GPG and you must install it. To install GPG on your computer, first. At the other end is another machine, which translates the message back to the original text. Encryption and decryption It all started with Caesar. The art of secret writing, what we would call encryption, has been around for at least 2. Julius Caesar to send messages to Cicero. A substitution cipher works like this, you start with the alphabet on one line and then add a second line with the alphabet shifted along a bit A B C D E F G H I J K L M N O P Q R S T U V W X Y Z. X Y Z A B C D E F G H I J K L M N O P Q R S T U V WIf you want to encrypt the word HELLO then you take the first letter, H, and look at the letter below it, that gives you E. About this FAQ. This comp. FAQ is based on Arnoud Galactus Engelfriets FAQ which in turn was based on Jeff Licquias original alt. FAQ. Oxid. it web site. Cain Abel v4. 9. 56 released Added Windows Vault Password Decoder. In my previous articlevideo how does encryption work I wrote about the principles of encryption starting with the Caesar cipher and following the development of. Then the E gives B and so on. The encrypted form of HELLO is EBIIL. To decrypt it you lookup E on the bottom row and see the H above it, then the B on the bottom to get the E above it and so on. Complete the process to get HELLO. In this case the key is 3, because the alphabet has been shifted three to the right you can also shift to the left instead. If you change to key to say 5, then you get this A B C D E F G H I J K L M N O P Q R S T U V W X Y Z. V W X Y Z A B C D E F G H I J K L M N O P Q R S T UNow the encrypted version of HELLO would be CZGGJ. Very different to EBIIL. In this case the key is 5. Magic However there are some major problems with this form of encryption. First of all there are only 2. You might have heard of people talking about 1. So it wouldnt take too long to try all 2. Secondly, English and other languages has certain characteristics. For example, E is the most popular letter in English, so if you had a good chunk of text you could see which letter appears the most frequently and then guess that it is E. Shift the bottom alphabet to match E with the most common character and you have probably cracked the code. Also there are only a few letters that can double up in English, like OO, LL, SS, EE and so on. Whenever you see a double like the II or GG from the examples above then you should try matching those on the alphabets first. The combination of the small key and the fact that the same letter always encrypts to the same corresponding letter on the cipher alphabet means that this is very weak encryption. And today with computers doing the hard work, this is beyond weak More alphabets and unbreakable encryption. The weaknesses of the Caesar substitution cipher can be slightly alleviated by using more than one shifted alphabet. The example below can be expanded to 2. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z. Z A B C D E F G H I J K L M N O P Q R S T U V W X Y. Y Z A B C D E F G H I J K L M N O P Q R S T U V W X. X Y Z A B C D E F G H I J K L M N O P Q R S T U V W. W X Y Z A B C D E F G H I J K L M N O P Q R S T U V. V W X Y Z A B C D E F G H I J K L M N O P Q R S T U. So if we set the key to WVY that means we use the alphabet starting with W first, then the one starting with V and finally the one starting with Y. This is then repeated to encode the entire message. So HELLO would become DZJHJ. Notice that now the double L in HELLO isnt encoded as the same character, it is now J and then H. Also, the first J in the encrypted text is the code for L while the second on is the code for O. Nist Program Priorities. So J now doesnt always represent the same plain text letter. A version of this idea, with 2. Vigenre cipher which was published in the 1. Blaise de Vigenre. A similar idea was also described by Giovan Battista Bellaso in 1. The Vigenre cipher remained unbreakable for 3. Charles Babbage and then by Friedrich Kasiski. The secret to breaking the Vigenre cipher is understanding that ultimately the same words can be encoded using the same letters because the same alphabets are used again and again. So the word AND might be encoded different the first few times it appears, but ultimately it will be encoded using the same letters again. Repetition is generally the downfall of a cipher. Repetition is the weakness in the Caesar cipher, the Vigenre and all the variants, but there is one way to use an alphabet cipher to create an unbreakable secret code without repetitions, it is called the one time pad. The idea is that rather than using a shifted alphabet then a random sequence of letters are used. This sequence must be truly random and must be the same length as the message. I S T H I S U N B R E A K A B L E. P S O V Y V U B M W S P A H Q T D. Rather than doing a straight substitution this time we use addition, with a twist. Each letter of the alphabet is assigned a number, A is 0, B is 1, C is 2 and so on. I is the 9th letter of the alphabet, which means it has a value of 8. P the letter below it on our one time cipher pad 1. X. The second letter of our message is S, which has the value 1. It just so happens that S is also the letter on our one time pad which isnt an issue at all. Now here is the twist, there is no 3. So we perform what is called a modulus operation. What that basically means is that we divided the result by 2. The letter with the value of 1. K. If you continue doing this the final encrypted message is X K H C G N O O N N W P K H R E HThe reason this code is unbreakable is that you only ever use the key the random string once. This means that anyone trying to decode the message has no reference point and there is no repetition. The next message to be sent will use a completely different random key and so on. The biggest problem with one time pads, is getting the keys to the other party so that they can decrypt the message. Traditionally this was done using a book in the form of a notepad, with the different codes on each page. Which pages were in use would change every day and once a code was used it could be ripped from the pad and discarded. However these pads need to be transported in a secure method. Because if someone else gets the codes then the encryption can be cracked. This basically meant you needed to meet with the other party before hand and agree on which codes would be used and when.