edu.vt.middleware.crypt.io
Class SecretKeyCredentialReader

java.lang.Object
  edu.vt.middleware.crypt.io.SecretKeyCredentialReader

All Implemented Interfaces:

CredentialReader<SecretKey>

public class SecretKeyCredentialReader
extends Object
implements CredentialReader<SecretKey>

Reads symmetric algorithm secret keys.

Version:

$Revision: 2744 $

Author:

Middleware Services

Constructor Summary

SecretKeyCredentialReader(String cipherAlgorithm)
Creates a new instance that can read keys for the given symmetric cipher algorithm.

Method Summary

SecretKey	read(File file) Reads a credential, commonly in encoded format, from the given file.
SecretKey	read(InputStream in) Reads a credential, commonly in encoded format, from the given input stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

SecretKeyCredentialReader

public SecretKeyCredentialReader(String cipherAlgorithm)

Creates a new instance that can read keys for the given symmetric cipher algorithm.

Parameters:

cipherAlgorithm - Cipher algorithm name, e.g. AES.

Method Detail

read

public SecretKey read(File file)
               throws IOException,
                      CryptException

Reads a credential, commonly in encoded format, from the given file.

Specified by:

read in interface CredentialReader<SecretKey>

Parameters:

file - File from which to read credential.

Returns:

Credential read from file.

Throws:

IOException - On IO exceptions.

CryptException - On cryptography errors such as invalid formats, unsupported ciphers, illegal settings.

read

public SecretKey read(InputStream in)
               throws IOException,
                      CryptException

Reads a credential, commonly in encoded format, from the given input stream.

Specified by:

read in interface CredentialReader<SecretKey>

Parameters:

in - Input stream from which to read credential.

Returns:

Credential read from input stream.

Throws:

IOException - On IO exceptions.

CryptException - On cryptography errors such as invalid formats, unsupported ciphers, illegal settings.