de.intarsys.tools.digest
Class StandardDigestEnvironment

java.lang.Object
  de.intarsys.tools.digest.StandardDigestEnvironment

All Implemented Interfaces:

IDigestEnvironment

public class StandardDigestEnvironment
extends Object
implements IDigestEnvironment

The standard implementation for IDigestEnvironment.

Constructor Summary

StandardDigestEnvironment()

Method Summary

IDigest	createDigest(String algorithmName, byte[] bytes) An IDigest object from an algorithm name and the raw bytes.
IDigester	createDigester(String algorithmName) An IDigester for the given "algorithmName".
IDigest	decode(byte[] bytes) Decode an DER encoded representation to an IDigest.
byte[]	encode(IDigest digest) Encode an IDigest to a DER representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardDigestEnvironment

public StandardDigestEnvironment()

Method Detail

createDigest

public IDigest createDigest(String algorithmName,
                            byte[] bytes)

Description copied from interface: IDigestEnvironment

An IDigest object from an algorithm name and the raw bytes.

Specified by:

createDigest in interface IDigestEnvironment

Returns:

An IDigest object from an algorithm name and the raw bytes.

createDigester

public IDigester createDigester(String algorithmName)
                         throws NoSuchAlgorithmException

Description copied from interface: IDigestEnvironment

An IDigester for the given "algorithmName".

Specified by:

createDigester in interface IDigestEnvironment

Returns:

An IDigester for the given "algorithmName".

Throws:

NoSuchAlgorithmException

decode

public IDigest decode(byte[] bytes)
               throws IOException

Description copied from interface: IDigestEnvironment

Decode an DER encoded representation to an IDigest.

Specified by:

decode in interface IDigestEnvironment

Returns:

The decoded IDigest

Throws:

IOException - If no decoder installed or "bytes" are not a correct encoded DER representation.

encode

public byte[] encode(IDigest digest)
              throws IOException

Description copied from interface: IDigestEnvironment

Encode an IDigest to a DER representation.

Specified by:

encode in interface IDigestEnvironment

Returns:

The DER encoded IDigest

Throws:

IOException - If no decoder installed.