org.asunder.content
Class SSKKContentManager

java.lang.Object
  org.asunder.content.AsunderContentManager
      org.asunder.content.SSKKContentManager

public class SSKKContentManager
extends AsunderContentManager

Author:

simms2k

Constructor Summary

SSKKContentManager(SSKKContent content)
Creates a new instance of SSKKContentManager

Method Summary

void	computeDataDigest()
void	computeKbrIdBytes() Computes the kbr id bytes
void	computeSignature(java.security.PrivateKey priKey) Computes the content's signature using the supplied private key (which must match the public key of course) as sign(prikey,concat(hash,path,version)) Assumes the dataDigest is correct, so be warned This can be processor intensive, so be sure to run in a thread
static SSKKContent	generateSSKKContent(byte[] data, java.security.PublicKey pubKey, java.security.PrivateKey priKey, java.lang.String path, long version) Generates subspace-signed keyword-key content which may be inserted into the Asunder DHT
static SSKKContentKey	generateSSKKContentKey(java.security.PublicKey pubKey, java.lang.String path) Generates a content key that may be used to search for content on the Asunder DHT
protected byte[]	getComputedKbrIdBytes() Computes the kbrId bytes as digest(concat(pubkey,path))
DHTContentKey	getContentKey()
byte[]	getDataDigest()
java.lang.String	getPath()
java.security.PublicKey	getPublicKey()
byte[]	getSignature()
long	getVersion()
boolean	verifyContent()
boolean	verifyDataDigest()
boolean	verifyKbrIdBytes()
boolean	verifySignature() Verifies the contents signature.

Methods inherited from class org.asunder.content.AsunderContentManager

getManager

Methods inherited from class java.lang.Object

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

Constructor Detail

SSKKContentManager

public SSKKContentManager(SSKKContent content)

Creates a new instance of SSKKContentManager

Method Detail

getDataDigest

public byte[] getDataDigest()

getPath

public java.lang.String getPath()

getPublicKey

public java.security.PublicKey getPublicKey()

getSignature

public byte[] getSignature()

getVersion

public long getVersion()

getContentKey

public DHTContentKey getContentKey()

computeDataDigest

public void computeDataDigest()
                       throws java.io.IOException,
                              java.security.NoSuchAlgorithmException

Throws:

java.io.IOException

java.security.NoSuchAlgorithmException

verifyDataDigest

public boolean verifyDataDigest()
                         throws java.io.IOException,
                                java.security.NoSuchAlgorithmException

Throws:

java.io.IOException

java.security.NoSuchAlgorithmException

verifySignature

public boolean verifySignature()
                        throws java.security.NoSuchAlgorithmException,
                               java.io.IOException,
                               java.security.SignatureException,
                               java.security.InvalidKeyException

Verifies the contents signature. as sign(prikey,concat(datadigest,path,version)) Be aware that this method assumes the dataDigest is correct This can be processor intensive, so be sure to run in a thread

Throws:

java.security.NoSuchAlgorithmException

java.io.IOException

java.security.SignatureException

java.security.InvalidKeyException

computeSignature

public void computeSignature(java.security.PrivateKey priKey)
                      throws java.security.NoSuchAlgorithmException,
                             java.security.InvalidKeyException,
                             java.io.IOException,
                             java.security.SignatureException

Computes the content's signature using the supplied private key (which must match the public key of course) as sign(prikey,concat(hash,path,version)) Assumes the dataDigest is correct, so be warned This can be processor intensive, so be sure to run in a thread

Parameters:

priKey - the publisher's private key

Throws:

java.security.NoSuchAlgorithmException

java.security.InvalidKeyException

java.io.IOException

java.security.SignatureException

getComputedKbrIdBytes

protected byte[] getComputedKbrIdBytes()
                                throws DHTContentHashException,
                                       java.io.IOException,
                                       java.security.NoSuchAlgorithmException,
                                       java.security.SignatureException,
                                       java.security.InvalidKeyException

Computes the kbrId bytes as digest(concat(pubkey,path))

Returns:

the computed id bytes

Throws:

DHTContentHashException

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.SignatureException

java.security.InvalidKeyException

computeKbrIdBytes

public void computeKbrIdBytes()
                       throws DHTContentHashException,
                              java.io.IOException,
                              java.security.NoSuchAlgorithmException,
                              java.security.SignatureException,
                              java.security.InvalidKeyException

Computes the kbr id bytes

If the data digest is not set, computes this too. Otherwise, assumes it is correct

Throws:

DHTContentHashException

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.SignatureException

java.security.InvalidKeyException

verifyKbrIdBytes

public boolean verifyKbrIdBytes()
                         throws DHTContentHashException,
                                java.io.IOException,
                                java.security.NoSuchAlgorithmException,
                                java.security.SignatureException,
                                java.security.InvalidKeyException

Throws:

DHTContentHashException

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.SignatureException

java.security.InvalidKeyException

verifyContent

public boolean verifyContent()
                      throws DHTContentHashException,
                             DHTContentSignatureException,
                             java.io.IOException,
                             java.security.NoSuchAlgorithmException,
                             java.security.SignatureException,
                             java.security.InvalidKeyException

Specified by:

verifyContent in class AsunderContentManager

Throws:

DHTContentHashException

DHTContentSignatureException

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.SignatureException

java.security.InvalidKeyException

generateSSKKContent

public static SSKKContent generateSSKKContent(byte[] data,
                                              java.security.PublicKey pubKey,
                                              java.security.PrivateKey priKey,
                                              java.lang.String path,
                                              long version)
                                       throws DHTContentHashException,
                                              DHTContentSignatureException,
                                              java.io.IOException,
                                              java.security.NoSuchAlgorithmException,
                                              java.security.SignatureException,
                                              java.security.InvalidKeyException

Generates subspace-signed keyword-key content which may be inserted into the Asunder DHT

Returns:

the content

Throws:

DHTContentHashException

DHTContentSignatureException

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.SignatureException

java.security.InvalidKeyException

generateSSKKContentKey

public static SSKKContentKey generateSSKKContentKey(java.security.PublicKey pubKey,
                                                    java.lang.String path)
                                             throws DHTContentHashException,
                                                    java.io.IOException,
                                                    java.security.NoSuchAlgorithmException,
                                                    java.security.SignatureException,
                                                    java.security.InvalidKeyException

Generates a content key that may be used to search for content on the Asunder DHT

Returns:

the content key

Throws:

DHTContentHashException

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.SignatureException

java.security.InvalidKeyException