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Let's have an encryption CHALLENGE!
#3
It's fine, but easily breakable, for two reasons:

1) After dividing by the current position of the number, I can analyze the number frequency and match it up with letter frequency. (each letter in the English alphabet has a certain frequency of occurence to it)

For very small words or phrases your program will undoubtedly work: a key size that is perhaps 1/4th that of the message size might not always be breakable in any way.. a key size that is equal to the message size is UNbreakable. (obviously Smile)

2) Go through every combination and find one combo with English words. [although I'd just go with (1)]

Regular e-commerce encryption is 32 or 64 or 128 (I think they have 128) bit. 1000 is only 10 bit Sad. Doesn't matter if you changed it to a long, easily breakable.

But Good Effort.

Will post decryption program (w/out key) soon...
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Visit www.neobasic.net to see rubbish in all its finest.
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Messages In This Thread
Let's have an encryption CHALLENGE! - by Agamemnus - 06-11-2003, 05:30 AM
Let's have an encryption CHALLENGE! - by relsoft - 06-11-2003, 08:16 AM
here it is - by Agamemnus - 06-11-2003, 08:34 AM
Let's have an encryption CHALLENGE! - by oracle - 06-11-2003, 12:46 PM
Let's have an encryption CHALLENGE! - by Neo - 06-11-2003, 03:02 PM
BASIC encryption - by Mango - 06-11-2003, 07:49 PM
Let's have an encryption CHALLENGE! - by oracle - 06-12-2003, 01:35 AM
key update - by Mango - 06-12-2003, 04:34 AM
Let's have an encryption CHALLENGE! - by oracle - 06-12-2003, 05:36 AM
My prog - by Meg - 06-12-2003, 04:50 PM
Let's have an encryption CHALLENGE! - by Mango - 06-12-2003, 06:39 PM
Let's have an encryption CHALLENGE! - by oracle - 06-16-2003, 01:38 AM
Let's have an encryption CHALLENGE! - by oracle - 06-16-2003, 01:23 PM
Let's have an encryption CHALLENGE! - by Neo - 06-16-2003, 02:53 PM
unknown, - by Agamemnus - 06-17-2003, 04:03 AM
. - by Meg - 06-18-2003, 10:37 AM
hmmm - by Agamemnus - 06-20-2003, 01:42 AM
Let's have an encryption CHALLENGE! - by oracle - 06-20-2003, 02:41 AM
Let's have an encryption CHALLENGE! - by barok - 06-20-2003, 05:28 AM
Let's have an encryption CHALLENGE! - by oracle - 06-20-2003, 09:34 AM
Let's have an encryption CHALLENGE! - by barok - 06-20-2003, 07:26 PM
Let's have an encryption CHALLENGE! - by oracle - 06-21-2003, 05:04 AM
i'll announce the winners in.... - by Agamemnus - 06-27-2003, 01:44 AM
Let's have an encryption CHALLENGE! - by oracle - 06-27-2003, 11:04 AM
Let's have an encryption CHALLENGE! - by oracle - 07-04-2003, 07:58 AM
well, - by Agamemnus - 07-09-2003, 05:10 AM
Let's have an encryption CHALLENGE! - by Blitz - 07-22-2003, 07:54 AM
Let's have an encryption CHALLENGE! - by na_th_an - 07-22-2003, 01:12 PM
Let's have an encryption CHALLENGE! - by Mango - 07-22-2003, 06:09 PM
Let's have an encryption CHALLENGE! - by Mango - 07-22-2003, 10:16 PM
Let's have an encryption CHALLENGE! - by oracle - 07-23-2003, 01:56 AM
Let's have an encryption CHALLENGE! - by Blitz - 07-23-2003, 03:30 AM
Let's have an encryption CHALLENGE! - by Blitz - 07-23-2003, 03:39 AM
Let's have an encryption CHALLENGE! - by oracle - 07-23-2003, 08:20 AM
Let's have an encryption CHALLENGE! - by Blitz - 07-23-2003, 10:20 AM
um. - by Meg - 07-23-2003, 11:20 AM
aga - by Meg - 07-24-2003, 02:39 AM
Let's have an encryption CHALLENGE! - by Blitz - 07-24-2003, 03:25 AM
yeah it prolly does - by Meg - 07-24-2003, 04:51 AM
well - by Meg - 07-24-2003, 06:32 AM
Let's have an encryption CHALLENGE! - by Phydaux - 07-24-2003, 06:23 PM
Let's have an encryption CHALLENGE! - by Blitz - 07-24-2003, 08:43 PM
Let's have an encryption CHALLENGE! - by Phydaux - 07-24-2003, 09:54 PM

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