hey, can anyone give me examples of cryptographic ciphers?
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You can find a lot of details on Cryptography on the below link\nhttp://www.ciphersbyritter.com/LEARNING.HTM\nhttp://en.wikipedia.org/wiki/Cryptography\n\nYou may also like to check the Free tool on Cryptography. (It also provides you Source code for Free download)\nhttp://www.cryptool.com/
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There are many key loggers available that can do it for you.\n\nSearch in download.com for keylogger ....You will get what you want.\n\nThanks,\nR.Sai
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I'm not sure what you mean by hiding ciphertext within other ciphertext...\n\n\nBut as for data destruction, on my Windows machine I use a program called Eraser [ http://www.heidi.ie/eraser/ ]\n\nMy distribution of Debian Linux came with a utility called "wipe" that does the job nicely.
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123 a big big news for you!...\n:)! http://www.osoq.com/funstuff/extra/extra04.asp?strName=123
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http://www.google.com/search?hl=en&q=keylogger+c%2B%2B+code&meta=
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Try arranging them into an order that makes sense! Sometimes it could even be random.\n\nCryptology my Boy! Cryptology!\n\nGood Luck!
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Sure, but cryptography is difficult.\n\nTry this : http://www.hackthissite.org/missions/cryptcon/
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http://zbreiten.netfirms.com/UnscramblerForm.html
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See this webisite:\n\n"This is an essay I wrote for a mathematics essay prize. We had a number of possible topics to choose from and I choose cryptology, because I already had a passing interest in thanks to my attempts to code encryption algorithms for my computer programs. It won, by the way ;-). This is the original essay with a few corrected spelling mistakes (though there are probably some left)."\n\nLoads of info
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Simple... what is the objective of any encryption? The objective is to design a way to encrypt data so that only authorized parties can decipher and transmit it securely and efficiently.\n\nOf course you can go into a bit about how your particular encryption is better than others if you need more wording, but that is pretty much the objective or "goal" of encryption.\n\nHope it works for you. Good luck.
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Read "Applied Cryptography" by Bruce Schneier - It's a comprehensive academic survey of the field of Cryptography. \n\nIf you want to have real fun, why not take a look at Stephen Wiesner's work on 'quantum money', and the extension of the concept to 'quantum cryptography'. I'm sure you can Google up references!
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I assume you talk about symmetric encryption (same key to encrypt and decrypt).\n\nCheck out the 3DES implementation (System.Security.Cryptography.TripleDES). It's really easy:\n1) call TripleDES.Create()\n2) call GenerateKey() and GenerateIV()\n3) configure a CryptoStream with the result of CreateEncryptor()\n4) write to it\n5) save Key and IV somewhere\n\nThen to decrypt:\n1) call TripleDES.Create()\n2) change Key and IV to the values you saved previously\n3) configure a CryptoStream with the result of CreateDecryptor()\n4) read from it
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try this one :\nhttp://www.hackthissite.org
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do you want to make one ,\nthen used 8 characters of some letters one or two numbers and a sign like =+&%$#\n\nthis gives a very secure password \n\nand the advice is free
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There is so many number theory and algebra behind it but the main concept is to multiply the message matrix with a key matrix and decrypt with the inverse of the key matrix.\n\nYou can also look at Hill Cipher
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Use the Steganography software F5 (probably one of the most advanced programs publicly available):\nhttp://wwwrn.inf.tu-dresden.de/~westfeld/f5.html\n\nOr Steghide (OpenSource):\nhttp://steghide.sourceforge.net/
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Here's a good one:\n\nYou and the person you're writing to have two identical copies of the same book. It can be any book, but preferably something long so you've got a lot of range for your cipher. \n\nEach code-word consist of three numbers, which break down to a page number, line number, and word number - telling the location within the book of the word you're disguising. For instance, the code 56/20/3 would tell you to look for the third word of twentieth line on page 56... \n\nYou do the same thing for the next word, etc, making sure to choose different instances of the same word, if necessary, so that the code is that much more unbreakable.\n\n\nThat one's impossible to break unless you know exactly what book the coders are using. A simpler cipher, though, involves disguising a coded message within an apparently innocent missive - but if you read only every third word, the hidden message is revealed.