Author Topic: Cryptography Programming (Read 5424 times)

Dutch · « **on:** July 10, 2007, 03:28:42 PM »

I have a program which enciphers a plaintext message using a K2 key using simple substitution. It is available to anyone who would like to have a copy of their own. Just e-mail me at: archieb42164@yahoo.com and I will send it as an attachment. If anyone is interested in programming enciphering or deciphering applications, we can start a group in which we exchange code and techniques.

Dutch

Aaron · « **Reply #1 on:** July 14, 2007, 02:43:51 PM »

I once programmed quite a few of the simpler ciphers in Linux, though I'm sure that encrypter/decrypter programs with expansive functionality already exist. Still, it would be nice to make something which has many possible choices for encrpytion and decryption and maybe throw in a few new ones or uncommon methods. That way one could quickly take a block of text and try multiple methods of cracking the cipher with ease.

Stun90 · « **Reply #2 on:** July 20, 2007, 10:28:43 AM »

Dutch, that sounds great. We need more encyphering and decyphering. Also exchanging techniqueswas one of the reasoons that I joined here. Please send it to me.

lyratzis · « **Reply #3 on:** September 11, 2007, 09:10:08 PM »

forgive my ignorance, but what is a K2 key?

Aaron · « **Reply #4 on:** September 11, 2007, 10:49:07 PM »

That's a good question... I don't rightly know. Google doesn't seem to be helping. Hopefully Dutch can clarify.

Dutch · « **Reply #5 on:** September 12, 2007, 10:49:42 AM »

A K2 keyword is where the plain alphabet is the normal alphabet in standard sequence and the cipher alphabet has the keyword.

P: ABCDEFGHIJKLMNOPQRSTUVWXYZ
c: BCDFGHJKLMOQRTUWYZEXPNSIVA

I hope that this answer and example will help. Sorry for any confusion.

Dutch

Aaron · « **Reply #6 on:** September 13, 2007, 10:28:41 AM »

Ah, I see. So it's just substitution with a known keyword somewhere in the cipher key.

7thdayjim · « **Reply #7 on:** January 07, 2008, 03:00:55 AM »

Dutch, sounds good, please send me your program. Thanks

MadMax · « **Reply #8 on:** June 18, 2008, 05:03:31 PM »

I wrote an RSA encryption program in Python. K_e and K_d (the public and private keys) are created from primes of at least 100 digits.

The encryption interface is pretty easy to use. There is a box to put in plaintext and a button to encrypt it, which is dependent on who you are sending the encryption to (theoretically, everyone has a unique public/private key set). The encrypted numerical string is output into another box. This is what you send the intended recipient.

The decryption interface works the same way, only inverse to the encryption interface.

If anyone is interested in having this program to use for yourself, email me at: hanieldardin@writing.com.

Author Topic: Cryptography Programming (Read 5424 times)

Dutch

Cryptography Programming

Aaron

Re: Cryptography Programming

Stun90

Re: Cryptography Programming

lyratzis

Re: Cryptography Programming

Aaron

Re: Cryptography Programming

Dutch

Re: Cryptography Programming

Aaron

Re: Cryptography Programming

7thdayjim

Re: Cryptography Programming

MadMax

Re: Cryptography Programming

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	Home Help Search Login Register Ancient Cryptography » General » Just About Anything » Cryptography Programming « previous next » Print Pages: [1] Author Topic: Cryptography Programming (Read 5424 times) 0 Members and 1 Guest are viewing this topic. Dutch Newbie Posts: 37 Gender: Goede Dag. Cryptography Programming « on: July 10, 2007, 03:28:42 PM » I have a program which enciphers a plaintext message using a K2 key using simple substitution. It is available to anyone who would like to have a copy of their own. Just e-mail me at: archieb42164@yahoo.com and I will send it as an attachment. If anyone is interested in programming enciphering or deciphering applications, we can start a group in which we exchange code and techniques. Dutch Logged DUTCH Aaron Administrator Sr. Member Posts: 326 Gender: Re: Cryptography Programming « Reply #1 on: July 14, 2007, 02:43:51 PM » I once programmed quite a few of the simpler ciphers in Linux, though I'm sure that encrypter/decrypter programs with expansive functionality already exist. Still, it would be nice to make something which has many possible choices for encrpytion and decryption and maybe throw in a few new ones or uncommon methods. That way one could quickly take a block of text and try multiple methods of cracking the cipher with ease. Logged Stun90 Newbie Posts: 46 Gender: The important thing is not to stop questioning... Re: Cryptography Programming « Reply #2 on: July 20, 2007, 10:28:43 AM » Dutch, that sounds great. We need more encyphering and decyphering. Also exchanging techniqueswas one of the reasoons that I joined here. Please send it to me. Logged "If we knew what it was we were doing, it would not be called research, would it?" - Albert Einstein lyratzis Newbie Posts: 1 Re: Cryptography Programming « Reply #3 on: September 11, 2007, 09:10:08 PM » forgive my ignorance, but what is a K2 key? Logged Aaron Administrator Sr. Member Posts: 326 Gender: Re: Cryptography Programming « Reply #4 on: September 11, 2007, 10:49:07 PM » That's a good question... I don't rightly know. Google doesn't seem to be helping. Hopefully Dutch can clarify. Logged Dutch Newbie Posts: 37 Gender: Goede Dag. Re: Cryptography Programming « Reply #5 on: September 12, 2007, 10:49:42 AM » A K2 keyword is where the plain alphabet is the normal alphabet in standard sequence and the cipher alphabet has the keyword. P: ABCDEFGHIJKLMNOPQRSTUVWXYZ c: BCDFGHJKLMOQRTUWYZEXPNSIVA I hope that this answer and example will help. Sorry for any confusion. Dutch Logged DUTCH Aaron Administrator Sr. Member Posts: 326 Gender: Re: Cryptography Programming « Reply #6 on: September 13, 2007, 10:28:41 AM » Ah, I see. So it's just substitution with a known keyword somewhere in the cipher key. Logged 7thdayjim Deacon Newbie Posts: 1 Gender: GBAMERICA! Re: Cryptography Programming « Reply #7 on: January 07, 2008, 03:00:55 AM » Dutch, sounds good, please send me your program. Thanks Logged Jim MadMax Newbie Posts: 1 Re: Cryptography Programming « Reply #8 on: June 18, 2008, 05:03:31 PM » I wrote an RSA encryption program in Python. K_e and K_d (the public and private keys) are created from primes of at least 100 digits. The encryption interface is pretty easy to use. There is a box to put in plaintext and a button to encrypt it, which is dependent on who you are sending the encryption to (theoretically, everyone has a unique public/private key set). The encrypted numerical string is output into another box. This is what you send the intended recipient. The decryption interface works the same way, only inverse to the encryption interface. If anyone is interested in having this program to use for yourself, email me at: hanieldardin@writing.com. « Last Edit: June 19, 2008, 11:28:48 AM by MadMax » Logged Print Pages: [1] « previous next » Ancient Cryptography » General » Just About Anything » Cryptography Programming SMF 2.0.16 \| SMF © 2019, Simple Machines Manuscript © Blocweb