net.oauth.signature.pem
Class PKCS1EncodedKeySpec

java.lang.Object
  net.oauth.signature.pem.PKCS1EncodedKeySpec

public class PKCS1EncodedKeySpec
extends java.lang.Object

PKCS#1 encoded private key is commonly used with OpenSSL. It provides CRT parameters so the private key operation can be much faster than using exponent/modulus alone, which is the case for PKCS#8 encoded key.

Unfortunately, JCE doesn't have an API to decode the DER. This class takes DER buffer and decoded into CRT key.

Author:

zhang

Constructor Summary

PKCS1EncodedKeySpec(byte[] keyBytes)
Create a PKCS#1 keyspec from DER encoded buffer

Method Summary

java.security.spec.RSAPrivateCrtKeySpec

getKeySpec() Get the key spec that JCE understands.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PKCS1EncodedKeySpec

public PKCS1EncodedKeySpec(byte[] keyBytes)
                    throws java.io.IOException

Create a PKCS#1 keyspec from DER encoded buffer

Parameters:

keyBytes - DER encoded octet stream

Throws:

java.io.IOException

Method Detail

getKeySpec

public java.security.spec.RSAPrivateCrtKeySpec getKeySpec()

Get the key spec that JCE understands.

Returns:

CRT keyspec defined by JCE