Hi Rishabh, It is not a good idea to advice someone to use your own self created algorithm no matter how smart you are, unless the algorithm is published in a renowned journal paper, and tested by every veteran and mathematician in the world upto at least some time, and is accepted by them as a good algorithm. My friend might not break it, you may not break it, but that does not mean no one in the world can.
Remember that trying all the permutation might not be required, there may be other ways. The first thing about a good encryption algorithm is to make sure (with established mathematical facts, may be not proven to be so, but also not proven to be wrong for centuries. for example the fact that there is no efficient algorithm to factorize the product of two primes) that the only way to break it is by non-statistical brute forcing. After you have that, its just a matter of choosing large enough values to really make it difficult. On Thu, Jul 19, 2012 at 11:19 AM, Rishabh.rammstien <[email protected]>wrote: > I have given a basic encryption example the same algorithm can be made > more complex. > For Example in my above post i have used 1 byte encryption. > For Encryption you can use n number of bytes where > n=1,2,3,4,5,6,7,8,9........ > higher the value of n more stronger will be the encryption and more number > of permutation combinations hacker need to do to decrypt the file which > seems impossible to me. > > Try my application RCrypto > <http://sourceforge.net/projects/rcrypto/files/RCrypto%20Beta%283.0%29%20%28xp%2Cvista%20%2C7%29.exe/download>(for > windows) it uses 8-byte encryption and just try to break it or ask your > hacker friend to break it. > > > On Wednesday, July 18, 2012 12:16:53 PM UTC+5:30, Debasish wrote: >> >> That's not encryption, any skilled hacker will break it in a few minutes. >> That is why so many people have created such good secure algorithms. >> >> On Wed, Jul 18, 2012 at 11:22 AM, Rishabh.rammstien <[email protected] >> > wrote: >> >>> Hi, >>> >>> You can use simple c++ XOR algorithm to encrypt the file. >>> suppose 8 bit password entered by user is 10101010 >>> >>> Encrypt byte :11010010 >>> 11010010 >>> XOR Encrypted Output= 01111000 >>> 10101010 >>> >>> Decrypt byte: 01111000 >>> 01111000 >>> XOR Decrypted Output= 11010010 >>> 10101010 >>> Done >>> >>> Rishabh Sharma >>> Anantya R&D >>> >>> On Tuesday, July 17, 2012 6:38:24 PM UTC+5:30, TeknoCepni wrote: >>>> >>>> Hi, >>>> >>>> I want to encrypt the file then one software decipher this file and >>>> read it. >>>> How can I do it ? >>>> >>>> Programming language : C++ >>>> Ofcourse in Linux. >>>> >>>> >>>> Huseyin Caliskan >>>> >>>> >>>> -- >>> Mailing list guidelines and other related articles: >>> http://lug-iitd.org/Footer >>> >> >> >> >> -- >> Debasish Ray Chawdhuri >> http://www.geekyarticles.com/ >> [A collection of advanced articles on java] >> >> -- > Mailing list guidelines and other related articles: > http://lug-iitd.org/Footer > -- Debasish Ray Chawdhuri http://www.geekyarticles.com/ [A collection of advanced articles on java] -- Mailing list guidelines and other related articles: http://lug-iitd.org/Footer
