encryption algorithms

[Alan]

Looking for a good encryption algorithm with emphasis on efficiancy... any suggestions? id rather see explanations rather than links but just post whatever...

[helios]

byte^0x84

EDIT: Oh, wait. You said "good". How efficient are we talking about, here? My machine can process AES-256 at about 30 MB/s, which is close to my HDD bandwidth.

[Alan]

oh you know just 'good' not supercomputer good, just a simple and effective encryption that can handle alot of data.

now are those decryptable?

is the first one literally byte^132? or is that just the type of encryption?

[firedraco]

Monoalphabetic substitution cipher. Very simple and easy to implement.

[webJose]

I know almost nothing about encryption, so I cannot comment. I will mention, though, that some time ago I found the algorithms for reversible RC4 encryption and irreversible SHA-1 encryption. If you would like to have them, drop your email here, I guess, in lieu of a better way.

[helios]

SHA-1 is a hashing algorithm (Secure Hash Algorithm), not an encryption algorithm.

[Alan]

thanks guys -_-

[webJose]

It is my understanding that both terms apply (hashing and one-way encryption).

[elvenspike]

Hmm, Alan for "good" encryption, does it need to be reversible? Do you need it to be able to get back the values somehow? As webJose mentioned, you can use hashed encryptions like SHA-1, MD5, etc. For some that you could reverse, there are all sorts of public key encryptions that have a decryption function and theirs also all sorts of ones, symmetric key cryptography, but its one algorithm to encrypt it and one to decrypt it. Obviously, the first is more secure than the second. Wait, I'll bring up some wiki articles...

http://en.wikipedia.org/wiki/RSA
http://en.wikipedia.org/wiki/Public-key_cryptography
http://en.wikipedia.org/wiki/Symmetric-key_algorithm
http://en.wikipedia.org/wiki/Block_cipher
http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
http://en.wikipedia.org/wiki/Data_Encryption_Standard

RSA is a powerful encryption algorithm, the rest are just types of encryption and standards. Find one you like and try googling it to see what you can find algorithm wise.

[NGen]

A lot has to just do with bit-flipping, or changing the byte order of the information to obfuscate it. Of course, that's just my opinion, and all that I do to encrypt things. It works out pretty well.

[elvenspike]

well, by encryption i was assuming he wanted something legible or meaningful to someone who isn't on a computer. there's really no way to reorganize bytes on a sheet of paper.