Hello, I want to know how to crypt a password. Which method is better in PHP. I should be able to decrypt it back as well. I used CRYPT_DES , its working.But I found that this is very basic method. I want to try, CRYPT_MD5 or CRYPT_BLOWFISH. I dont know, whether my sytem supports these. How to find out whether my system support these,. In case my system is not supporting these, how to make it availiable. Which method is the best for crypting the password. Thanking you. Regards, Arun Indian Institute Of Science Bangalore