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  #1  
Old September 28th, 2012, 06:22 AM
StefanoSphera StefanoSphera is offline
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New Crypto Algorithm

Hello everyone, I wanted to ask if the algorithm that I created for the safety it is very difficult to decipher.
example:
Starting string "ciao":
Encrypt: 26e316406I5947t319430c3201

Starting string "Продукция"
Encrypt:08i325606A1o58T2W36c321858U2V04z323840J7o38L8Z58B0W48g322818w326536x327648M0p58u325636A2v30q 327414m326652s3265

The algorithm creates different keys even if the word used is always the same
example:
Starting string "ciao":
Encrypt: 53x322132f319555u321918Y96

Thank you all.

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  #2  
Old September 28th, 2012, 08:16 AM
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Old September 28th, 2012, 11:21 AM
StefanoSphera StefanoSphera is offline
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Example

Example?

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Old September 28th, 2012, 11:41 AM
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Well I can just as easily mash my keyboard 3 times and post the resulting stream of characters my "super encryption".

But without additional information, it's just a meaningless statement.

Post your code and/or your algorithm description if you want a serious critique.

Otherwise, I'll just point at the "secret algorithms" section of the snake oil FAQ and move onto looking at other things instead.

> The algorithm creates different keys even if the word used is always the same
You need to be careful with your terminology here.
"key" has a very distinct meaning in cryptography, but you use it to apparently mean ciphertext.

encrypt(cleartext,key) -> ciphertext
decrypt(ciphertext,key) -> cleartext

Good crypto algorithms publish everything except the key, which is known only to Alice and Bob

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Old October 2nd, 2012, 11:02 PM
Decave Decave is offline
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Quote:
Originally Posted by StefanoSphera
Hello everyone, I wanted to ask if the algorithm that I created for the safety it is very difficult to decipher.
example:
Starting string "ciao":
Encrypt: 26e316406I5947t319430c3201

Starting string "Продукция"
Encrypt:08i325606A1o58T2W36c321858U2V04z323840J7o38L8Z58B0W48g322818w326536x327648M0p58u325636A2v30q 327414m326652s3265

The algorithm creates different keys even if the word used is always the same
example:
Starting string "ciao":
Encrypt: 53x322132f319555u321918Y96

Thank you all.


I mean no offense, but I am going to assume unequivocally that your encryption scheme is completely insecure. You haven't provided any proofs of security or even mentioned a single detail about your scheme other than giving two plaintext/ciphertext combinations. In fact, assuming you didn't mash your keyboard like someone else said, against an efficient adversary your scheme is definitely 100% insecure.

Also, when you say, "the algorithm creates different keys even if the word used is always the same" has a formal term -- it's called 'probabilistic'. Your scheme is not the first one to use this idea.

Sorry, but encryption is a science, not an art. You would have to do an enormous amount of reading and research in both mathematics and computer science before you had any hope of creating a computationally secure encryption scheme.

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