edu.vt.middleware.crypt.io
Class AbstractEncodedCredentialReader<T>

java.lang.Object
  edu.vt.middleware.crypt.io.AbstractEncodedCredentialReader<T>

Type Parameters:

T - Type of credential handled by this class.

All Implemented Interfaces:

CredentialReader<T>

Direct Known Subclasses:

PrivateKeyCredentialReader, PublicKeyCredentialReader

public abstract class AbstractEncodedCredentialReader<T>
extends Object
implements CredentialReader<T>

Base class for credential readers that handle credentials that can be described as a byte array.

Version:

$Revision: 2744 $

Author:

Middleware Services

Field Summary

protected static org.bouncycastle.asn1.DERObjectIdentifier	DSA_ID DSA algorithm OID.
protected static org.bouncycastle.asn1.DERObjectIdentifier	EC_ID EC algorithm OID.
protected org.slf4j.Logger	logger Logger instance.
protected static org.bouncycastle.asn1.DERObjectIdentifier	RSA_ID RSA algorithm OID.

Constructor Summary

AbstractEncodedCredentialReader()

Method Summary

protected abstract T	decode(byte[] encoded) Decodes an encoded representation of a credential into a corresponding object.
T	read(File file) Reads a credential, commonly in encoded format, from the given file.
T	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

Field Detail

DSA_ID

protected static final org.bouncycastle.asn1.DERObjectIdentifier DSA_ID

DSA algorithm OID.

EC_ID

protected static final org.bouncycastle.asn1.DERObjectIdentifier EC_ID

EC algorithm OID.

RSA_ID

protected static final org.bouncycastle.asn1.DERObjectIdentifier RSA_ID

RSA algorithm OID.

logger

protected final org.slf4j.Logger logger

Logger instance.

Constructor Detail

AbstractEncodedCredentialReader

public AbstractEncodedCredentialReader()

Method Detail

read

public T read(File file)
       throws IOException,
              CryptException

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

Specified by:

read in interface CredentialReader<T>

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 T read(InputStream in)
       throws IOException,
              CryptException

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

Specified by:

read in interface CredentialReader<T>

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.

decode

protected abstract T decode(byte[] encoded)
                     throws CryptException

Decodes an encoded representation of a credential into a corresponding object.

Parameters:

encoded - Encoded representation of credential.

Returns:

Decoded credential.

Throws:

CryptException - On decoding errors.