Shanty Shanty - 1 year ago 94
Java Question

Encrypt text to AES/CBC/PKCS7Padding

I am developing a web application to encrypt some texts with java 6.

The encrypted that I have to do is a AES (Rijndael) in CBC mode with PKCS7 padding and a 128-bit key.

I saw an article that explains how to encrypt in the same way I have to do, but with PKCS5 padding.

The link of the article is here:

I change

private final static String cI = "AES/CBC/PKCS5Padding";


private final static String cI = "AES/CBC/PKCS7Padding";

But Java couldn't find a provider for this.

Could someone tell me how I have to do?

Answer Source

Java only provides PKCS#5 padding, but it is the same as PKCS#7 padding. See this question on Crypto.SE:

What is the difference between PKCS#5 padding and PKCS#7 padding

They are interchangeable for the common block ciphers like AES and DES.

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