Package com.bld.crypto.commons

Class KeyUtility

java.lang.Object

com.bld.crypto.commons.KeyUtility

public class KeyUtility
extends Object

Utility class that provides static helper methods for converting raw key material (Base64-encoded DER bytes) into PublicKey instances.

Constructor Summary

Constructors

Constructor	Description
KeyUtility()

Method Summary

Modifier and Type	Method	Description
static PublicKey	getPublicKey(String publicKey, InstanceType instanceType)	Decodes a Base64-encoded X.509 public key and returns a PublicKey for the specified algorithm.

Methods inherited from class java.lang.Object

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

Constructor Details

KeyUtility

public KeyUtility()

Method Details

getPublicKey

public static PublicKey getPublicKey(String publicKey,
 InstanceType instanceType)

Decodes a Base64-encoded X.509 public key and returns a PublicKey for the specified algorithm.

Parameters:

publicKey - the Base64-encoded DER representation of the public key; returns null if blank

instanceType - the algorithm used to build the key factory (e.g. RSA, EC)

Returns:

the decoded PublicKey, or null if publicKey is blank

Throws:

CryptoException - if the algorithm is not available or the key spec is invalid