encryption using certificate

[Rajit Patel]

Hi,

I am new for security. I want to encrypt and decrypt sensitive information before storing in database using server certificate.

Right now i am encrypting and decrypting information using RSA algorithm and generating public and private key from KeyGenerator class..

But i dont know how to use certificate in code to encrypt and decrypt data. I have generated certificate using keytool.

if anybody can help me with code, then it will be great help for me.....

Thanks in andvance................

[Ulf Dittmer]

You don't need a certificate for en/decryption, you need just the key. The Java API for this is called JCE, and you can find more information about it, including links to code samples, at http://faq.javaranch.com/java/SecurityFaq#encryption

[pavithra murthy]

you can make use of this command below . this requires itext.jar

CertificateFactory cf = CertificateFactory.getInstance("X509");
Collection col = cf.generateCertificates(new FileInputStream("export.cer"));