com.google.gdata.client.authn.oauth
Class RsaSha1PrivateKeyHelper

java.lang.Object
  com.google.gdata.client.authn.oauth.RsaSha1PrivateKeyHelper

public class RsaSha1PrivateKeyHelper
extends java.lang.Object

A collection of methods to load an RSA-SHA1 PrivateKey object from various sources. The key should be a Base-64 encoded private key string conforming to the PKCS #8 standard.

Method Summary

static java.security.PrivateKey	getPrivateKey(byte[] privateKeyBytes) Retrieves a PrivateKey from an array of bytes.
static java.security.PrivateKey	getPrivateKey(java.io.File file) Retrieves a PrivateKey from a file.
static java.security.PrivateKey	getPrivateKey(java.io.Reader privateKeyReader) Retrieves a PrivateKey from a reader.
static java.security.PrivateKey	getPrivateKey(java.lang.String privateKeyString) Retrieves a PrivateKey from a string.
static java.security.PrivateKey	getPrivateKeyFromFilename(java.lang.String filename) Retrieves a PrivateKey from a file.

Methods inherited from class java.lang.Object

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

Method Detail

getPrivateKeyFromFilename

public static java.security.PrivateKey getPrivateKeyFromFilename(java.lang.String filename)
                                                          throws Base64DecoderException,
                                                                 java.security.spec.InvalidKeySpecException,
                                                                 java.io.IOException,
                                                                 java.security.NoSuchAlgorithmException

Retrieves a PrivateKey from a file.

Parameters:

filename - The filename from which to load the private key.

Returns:

A PrivateKey object.

Throws:

Base64DecoderException

java.security.spec.InvalidKeySpecException

java.io.IOException

java.security.NoSuchAlgorithmException

getPrivateKey

public static java.security.PrivateKey getPrivateKey(java.io.File file)
                                              throws Base64DecoderException,
                                                     java.security.spec.InvalidKeySpecException,
                                                     java.io.IOException,
                                                     java.security.NoSuchAlgorithmException

Retrieves a PrivateKey from a file.

Parameters:

file - The File object from which to load the private key.

Returns:

A PrivateKey object.

Throws:

Base64DecoderException

java.security.spec.InvalidKeySpecException

java.io.IOException

java.security.NoSuchAlgorithmException

getPrivateKey

public static java.security.PrivateKey getPrivateKey(java.io.Reader privateKeyReader)
                                              throws Base64DecoderException,
                                                     java.security.spec.InvalidKeySpecException,
                                                     java.io.IOException,
                                                     java.security.NoSuchAlgorithmException

Retrieves a PrivateKey from a reader.

Parameters:

privateKeyReader - The Reader object from which to load the private key.

Returns:

A PrivateKey object.

Throws:

Base64DecoderException

java.security.spec.InvalidKeySpecException

java.io.IOException

java.security.NoSuchAlgorithmException

getPrivateKey

public static java.security.PrivateKey getPrivateKey(java.lang.String privateKeyString)
                                              throws Base64DecoderException,
                                                     java.security.spec.InvalidKeySpecException,
                                                     java.security.NoSuchAlgorithmException

Retrieves a PrivateKey from a string.

Parameters:

privateKeyString - The string from which to load the private key.

Returns:

A PrivateKey object.

Throws:

Base64DecoderException

java.security.spec.InvalidKeySpecException

java.security.NoSuchAlgorithmException

getPrivateKey

public static java.security.PrivateKey getPrivateKey(byte[] privateKeyBytes)
                                              throws java.security.spec.InvalidKeySpecException,
                                                     java.security.NoSuchAlgorithmException

Retrieves a PrivateKey from an array of bytes.

Parameters:

privateKeyBytes - The array of bytes from which to load the private key.

Returns:

A PrivateKey object.

Throws:

java.security.spec.InvalidKeySpecException

java.security.NoSuchAlgorithmException