Provider             Length (bits) Security  Speed 
Hash.Provider.CRC32  32            low       fast 
Hash.Provider.SHA1   160           moderate  medium 
Hash.Provider.SHA256 256           high      slow 
Hash.Provider.SHA384 384           high      slow 
Hash.Provider.SHA512 512           extreme   slow 
Hash.Provider.MD5    128           moderate  medium 

From: http://www.codeproject.com/KB/security/SimpleEncryption.aspx

>I'm experimenting with various encryption methods offered in
>System.Security.Cryptography
>
>Is RSA encryption considered "stronger" than 3DES encryption?
>
>Can anyone rank the level of CPU usage required by the four major types of encryption, namely: RSA, DES, 3DES, and Rijndael.
>
>TIA,
>Dave.