how to encrypt and decrypt string

sara_1981 · October 16th, 2004, 10:59 PM

Hi there,
could anyone give me a sample code to encrypt data and decrypt it in vb.net(asp.net).
I know we should use system.security.cryptography but I don't know how I could use the methods and properties in this class. I am new in this field (encrypting, ...)
regards

Regards
Sara

bmains · October 18th, 2004, 07:26 AM

It depends on the algorithm; it's not straightforward. Which do you want to use.

sara_1981 · October 18th, 2004, 11:37 PM

I want to encrypt a password, which need high security. could anyone please help me.

Regards
Sara

planoie · October 29th, 2004, 02:13 PM

Usually for passwords, I use hashing. Because hashing doesn't have a decryption method, I consider it pretty secure. So all passwords are stored in their hashed form. When I need to check the password, instead of decrypting the hashed password, I hash the plain text version and compare the two. You can use the forms authentication class to get at the hashing method...

System.Web.Security.FormsAuthentication.HashPasswo rdForStoringInConfigFile(password, algorithm)

The algorithm argument can be either "sha1" or "md5".