Best Encryption algorithm !

well..
depend what kind of encryption ur looking for.
RSA-1024 would be good :)
DEA/AES/IDEA/PGP...etc
they are all good :)
i asure you no one will try decrypt them, and if he will it will take him lotsa time, depend on what attack he is using though.
never use a readble chars for ur password, i.e: money
as people will try dictunary attack..

One-time pad is best (its perfect security, information theoretically) but you won't get this by running a pseudo-random number genrator to generate the sequence (that would give you a form of stream cipher, which is actually quite feasible to break). You will need a source that has algorithmic independence (any partially quantum source or source with enough complexity over the time scale as to prohibit predicability -- like a partially broken circuit (IBM has a commercial version of this)).

I am only answering the question of what is best, security-wise. There are many other "bests" as far as speed or costs, but I hope I can given you a start!

The Rijndael algorithm is the best. It is the new AES. Its also a block cipherand its predecessor is the square cipher.

Regards
Brandon Parker

The attack for Rijndael

The standard techniques of differential and linear cryptanalysis can be adapted to be used against Rijndael. Because of the way matrix multiplication works, and because in GF(2^8), all the coefficients of the Mix Column matrix (as indeed all numbers from 1 to 255) have reciprocals, a specific attack, originally developed for use against its predecessor Square, called the "Square attack", can be used as well.

If one uses 256 blocks of chosen plaintext, where every byte but one is held constant, and that one is given all 256 possible values, then after one round of Rijndael, four bytes will go through all 256 possible values, and the rest of the bytes will remain constant. After a second round, sixteen bytes will each go through all 256 possible values, without a single duplicate, in the encipherment of the 256 blocks of chosen plaintext. (For a 128-bit block, this is every byte; for larger blocks, the rest of the bytes will remain constant.) This interesting property, although not trivial to exploit, can be used to impose certain conditions on the key when one additional round, before or after the two rounds involved, is present.

The possibility of this attack was first noted by the developers of Square and Rijndael themselves, and was noted in the paper that initially described Square.

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While this may be true... The actual implementation of this attack is no trivial endevor.

I used the word "best" because it is generally considered the most secure out of all publicly known ciphers.

Regards
Brandon Parker

Thanks for all helps ;)

There is "best" encryption currently is Rijndael (http://csrc.nist.gov/encryption/aes/rijndael/) or the Advanced Encryption Standard. It's name is derived from the name of the (Belgian) inventors. Click here (http://fp.gladman.plus.com/cryptography_technology/rijndael/) for implementations in C/C++ and assembler. It's not proven to be "uncrackable" (all algorithms are if you try all keys) though.

Those are cool ;)

Thanks Simon666 and Fazer1000

With Best Regards,