com.google.api.client.auth
Class RsaSha

java.lang.Object
  com.google.api.client.auth.RsaSha

public class RsaSha
extends Object

Utility methods for "RSA-SHA1" signing method.

Since:

1.0

Author:

Yaniv Inbar

Method Summary

static PrivateKey	getPrivateKeyFromKeystore(InputStream keyStream, String storePass, String alias, String keyPass) Retrieves the private key from the specified key store.
static PrivateKey	getPrivateKeyFromPk8(File file) Reads a PKCS#8 format private key from a given file.
static String	sign(PrivateKey privateKey, String data) Signs the given data using the given private key.

Methods inherited from class java.lang.Object

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

Method Detail

getPrivateKeyFromKeystore

public static PrivateKey getPrivateKeyFromKeystore(InputStream keyStream,
                                                   String storePass,
                                                   String alias,
                                                   String keyPass)
                                            throws IOException,
                                                   GeneralSecurityException

Retrieves the private key from the specified key store.

Parameters:

keyStream - input stream to the key store file

storePass - password protecting the key store file

alias - alias under which the private key is stored

keyPass - password protecting the private key

Returns:

the private key from the specified key store

Throws:

GeneralSecurityException - if the key store cannot be loaded

IOException - if the file cannot be accessed

getPrivateKeyFromPk8

public static PrivateKey getPrivateKeyFromPk8(File file)
                                       throws IOException,
                                              GeneralSecurityException

Reads a PKCS#8 format private key from a given file.

Throws:

NoSuchAlgorithmException

IOException

GeneralSecurityException

sign

public static String sign(PrivateKey privateKey,
                          String data)
                   throws GeneralSecurityException

Signs the given data using the given private key.

Throws:

GeneralSecurityException - general security exception