/// <summary>
/// Create a deep copy of the given data object, including a clone of the
/// signature object.
/// </summary>
///
/// <param name="data">The data object to copy.</param>
public Data(Data data)
{
this.signature_ = new ChangeCounter(
new Sha256WithRsaSignature());
this.name_ = new ChangeCounter(new Name());
this.metaInfo_ = new ChangeCounter(new MetaInfo());
this.content_ = new Blob();
this.lpPacket_ = null;
this.defaultWireEncoding_ = new SignedBlob();
this.getDefaultWireEncodingChangeCount_ = 0;
this.changeCount_ = 0;
try {
signature_
.set((data.signature_ == null) ? (net.named_data.jndn.util.ChangeCountable)(new Sha256WithRsaSignature())
: (net.named_data.jndn.util.ChangeCountable)((Signature)data.getSignature().Clone()));
} catch (Exception e) {
// We don't expect this to happen, so just treat it as if we got a null pointer.
throw new NullReferenceException(
"Data.setSignature: unexpected exception in clone(): "
+ e.Message);
}
name_.set(new Name(data.getName()));
metaInfo_.set(new MetaInfo(data.getMetaInfo()));
content_ = data.content_;
setDefaultWireEncoding(data.defaultWireEncoding_, null);
}
private static ArrayList dumpData(Data data)
{
ArrayList result = new ArrayList();
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("name:", data.getName().toUri()));
if (data.getContent().size() > 0) {
String raw = "";
ByteBuffer buf = data.getContent().buf();
while (buf.remaining() > 0)
raw += (char) buf.get();
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("content (raw):", raw));
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("content (hex):", data.getContent().toHex()));
} else
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("content: <empty>"));
if (data.getMetaInfo().getType() != net.named_data.jndn.ContentType.BLOB) {
ILOG.J2CsMapping.Collections.Collections.Add(result,dump(
"metaInfo.type:",
(data.getMetaInfo().getType() == net.named_data.jndn.ContentType.LINK) ? "LINK"
: ((data.getMetaInfo().getType() == net.named_data.jndn.ContentType.KEY) ? "KEY"
: "unknown")));
}
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("metaInfo.freshnessPeriod (milliseconds):", (data
.getMetaInfo().getFreshnessPeriod() >= 0) ? ""
+ (long) data.getMetaInfo().getFreshnessPeriod() : "<none>"));
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("metaInfo.finalBlockId:", (data.getMetaInfo()
.getFinalBlockId().getValue().size() > 0) ? data.getMetaInfo()
.getFinalBlockId().toEscapedString() : "<none>"));
if (data.getSignature() is Sha256WithRsaSignature) {
Sha256WithRsaSignature signature = (Sha256WithRsaSignature) data
.getSignature();
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("signature.signature:", (signature.getSignature()
.size() == 0) ? "<none>" : signature.getSignature().toHex()));
if (signature.getKeyLocator().getType() != net.named_data.jndn.KeyLocatorType.NONE) {
if (signature.getKeyLocator().getType() == net.named_data.jndn.KeyLocatorType.KEY_LOCATOR_DIGEST)
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("signature.keyLocator: KeyLocatorDigest:",
signature.getKeyLocator().getKeyData().toHex()));
else if (signature.getKeyLocator().getType() == net.named_data.jndn.KeyLocatorType.KEYNAME)
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("signature.keyLocator: KeyName:", signature
.getKeyLocator().getKeyName().toUri()));
else
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("signature.keyLocator: <unrecognized KeyLocatorType"));
} else
ILOG.J2CsMapping.Collections.Collections.Add(result,dump("signature.keyLocator: <none>"));
}
return result;
}
private static Data createFreshData()
{
Data freshData = new Data(new Name("/ndn/abc"));
freshData.setContent(new Blob("SUCCESS!"));
freshData.getMetaInfo().setFreshnessPeriod(5000);
freshData.getMetaInfo().setFinalBlockId(new Name("/%00%09").get(0));
return freshData;
}
/// <summary>
/// Create a new StaleTimeContent to hold data's name and wire encoding
/// as well as the staleTimeMilliseconds which is now plus
/// data.getMetaInfo().getFreshnessPeriod().
/// </summary>
///
/// <param name="data">The Data packet whose name and wire encoding are copied.</param>
public StaleTimeContent(Data data)
: base(data)
{
// Set up staleTimeMilliseconds_.
staleTimeMilliseconds_ = net.named_data.jndn.util.Common.getNowMilliseconds()
+ data.getMetaInfo().getFreshnessPeriod();
}
/// <summary>
/// Add the Data packet to the cache so that it is available to use to
/// answer interests. If data.getMetaInfo().getFreshnessPeriod() is not
/// negative, set the staleness time to now plus
/// data.getMetaInfo().getFreshnessPeriod(), which is checked during cleanup to
/// remove stale content. This also checks if cleanupIntervalMilliseconds
/// milliseconds have passed and removes stale content from the cache. After
/// removing stale content, remove timed-out pending interests from
/// storePendingInterest(), then if the added Data packet satisfies any
/// interest, send it through the face and remove the interest from the pending
/// interest table.
/// </summary>
///
/// <param name="data"></param>
public void add(Data data)
{
doCleanup();
if (data.getMetaInfo().getFreshnessPeriod() >= 0.0d) {
// The content will go stale, so use staleTimeCache_.
MemoryContentCache.StaleTimeContent content = new MemoryContentCache.StaleTimeContent (data);
// Insert into staleTimeCache, sorted on content.staleTimeMilliseconds.
// Search from the back since we expect it to go there.
int i = staleTimeCache_.Count - 1;
while (i >= 0) {
if (staleTimeCache_[i].getStaleTimeMilliseconds() <= content
.getStaleTimeMilliseconds())
break;
--i;
}
// Element i is the greatest less than or equal to
// content.staleTimeMilliseconds, so insert after it.
staleTimeCache_.Insert(i + 1, content);
} else
// The data does not go stale, so use noStaleTimeCache_.
ILOG.J2CsMapping.Collections.Collections.Add(noStaleTimeCache_,new MemoryContentCache.Content (data));
// Remove timed-out interests and check if the data packet matches any
// pending interest.
// Go backwards through the list so we can erase entries.
double nowMilliseconds = net.named_data.jndn.util.Common.getNowMilliseconds();
for (int i_0 = pendingInterestTable_.Count - 1; i_0 >= 0; --i_0) {
MemoryContentCache.PendingInterest pendingInterest = pendingInterestTable_[i_0];
if (pendingInterest.isTimedOut(nowMilliseconds)) {
ILOG.J2CsMapping.Collections.Collections.RemoveAt(pendingInterestTable_,i_0);
continue;
}
if (pendingInterest.getInterest().matchesName(data.getName())) {
try {
// Send to the same face from the original call to onInterest.
// wireEncode returns the cached encoding if available.
pendingInterest.getFace().send(data.wireEncode());
} catch (IOException ex) {
ILOG.J2CsMapping.Util.Logging.Logger.getLogger(typeof(MemoryContentCache).FullName).log(
ILOG.J2CsMapping.Util.Logging.Level.SEVERE, ex.Message);
return;
}
// The pending interest is satisfied, so remove it.
ILOG.J2CsMapping.Collections.Collections.RemoveAt(pendingInterestTable_,i_0);
}
}
}
/**
* Loop to encode a data packet nIterations times.
* @param nIterations The number of iterations.
* @param useComplex If true, use a large name, large content and all fields.
* If false, use a small name, small content
* and only required fields.
* @param useCrypto If true, sign the data packet. If false, use a blank
* signature.
* @param keyType KeyType.RSA or EC, used if useCrypto is true.
* @param encoding Set encoding[0] to the wire encoding.
* @return The number of seconds for all iterations.
*/
private static double benchmarkEncodeDataSeconds(int nIterations, bool useComplex, bool useCrypto, KeyType keyType,
Blob[] encoding)
{
Name name;
Blob content;
if (useComplex) {
// Use a large name and content.
name = new Name
("/ndn/ucla.edu/apps/lwndn-test/numbers.txt/%FD%05%05%E8%0C%CE%1D/%00");
StringBuilder contentStream = new StringBuilder();
int count = 1;
contentStream.append(count++);
while (contentStream.toString().Length < 1115)
contentStream.append(" ").append(count++);
content = new Blob(contentStream.toString());
}
else {
// Use a small name and content.
name = new Name("/test");
content = new Blob("abc");
}
Name.Component finalBlockId =
new Name.Component(new Blob(new byte[] { (byte)0 }));
// Initialize the KeyChain storage in case useCrypto is true.
MemoryIdentityStorage identityStorage = new MemoryIdentityStorage();
MemoryPrivateKeyStorage privateKeyStorage = new MemoryPrivateKeyStorage();
KeyChain keyChain = new KeyChain
(new IdentityManager(identityStorage, privateKeyStorage),
new SelfVerifyPolicyManager(identityStorage));
Name keyName = new Name("/testname/DSK-123");
Name certificateName = keyName.getSubName(0, keyName.size() - 1).append
("KEY").append(keyName.get(-1)).append("ID-CERT").append("0");
privateKeyStorage.setKeyPairForKeyName
(keyName, KeyType.RSA, new ByteBuffer(DEFAULT_RSA_PUBLIC_KEY_DER),
new ByteBuffer(DEFAULT_RSA_PRIVATE_KEY_DER));
Blob signatureBits = new Blob(new byte[256]);
Blob emptyBlob = new Blob(new byte[0]);
double start = getNowSeconds();
for (int i = 0; i < nIterations; ++i) {
Data data = new Data(name);
data.setContent(content);
if (useComplex) {
data.getMetaInfo().setFreshnessPeriod(30000);
data.getMetaInfo().setFinalBlockId(finalBlockId);
}
if (useCrypto)
// This sets the signature fields.
keyChain.sign(data, certificateName);
else {
// Imitate IdentityManager.signByCertificate to set up the signature
// fields, but don't sign.
KeyLocator keyLocator = new KeyLocator();
keyLocator.setType(KeyLocatorType.KEYNAME);
keyLocator.setKeyName(certificateName);
Sha256WithRsaSignature sha256Signature =
(Sha256WithRsaSignature)data.getSignature();
sha256Signature.setKeyLocator(keyLocator);
sha256Signature.setSignature(signatureBits);
}
encoding[0] = data.wireEncode();
}
double finish = getNowSeconds();
return finish - start;
}
/// <summary>
/// Create a deep copy of the given data object, including a clone of the
/// signature object.
/// </summary>
///
/// <param name="data">The data object to copy.</param>
public Data(Data data)
{
this.signature_ = new ChangeCounter(
new Sha256WithRsaSignature());
this.name_ = new ChangeCounter(new Name());
this.metaInfo_ = new ChangeCounter(new MetaInfo());
this.content_ = new Blob();
this.lpPacket_ = null;
this.defaultWireEncoding_ = new SignedBlob();
this.defaultFullName_ = new Name();
this.getDefaultWireEncodingChangeCount_ = 0;
this.changeCount_ = 0;
try {
signature_
.set((data.signature_ == null) ? (net.named_data.jndn.util.ChangeCountable) (new Sha256WithRsaSignature())
: (net.named_data.jndn.util.ChangeCountable) ((Signature) data.getSignature().Clone()));
} catch (Exception e) {
// We don't expect this to happen, so just treat it as if we got a null pointer.
throw new NullReferenceException(
"Data.setSignature: unexpected exception in clone(): "
+ e.Message);
}
name_.set(new Name(data.getName()));
metaInfo_.set(new MetaInfo(data.getMetaInfo()));
content_ = data.content_;
setDefaultWireEncoding(data.defaultWireEncoding_, null);
}
/// <summary>
/// Decode input as a data packet in NDN-TLV and set the fields in the data
/// object.
/// </summary>
///
/// <param name="data">The Data object whose fields are updated.</param>
/// <param name="input"></param>
/// <param name="signedPortionBeginOffset">If you are not decoding in order to verify, you can call decodeData(data, input) to ignore this returned value.</param>
/// <param name="signedPortionEndOffset">not decoding in order to verify, you can call decodeData(data, input) to ignore this returned value.</param>
/// <param name="copy">unchanged while the Blob values are used.</param>
/// <exception cref="EncodingException">For invalid encoding.</exception>
public override void decodeData(Data data, ByteBuffer input,
int[] signedPortionBeginOffset, int[] signedPortionEndOffset,
bool copy)
{
TlvDecoder decoder = new TlvDecoder(input);
int endOffset = decoder.readNestedTlvsStart(net.named_data.jndn.encoding.tlv.Tlv.Data);
signedPortionBeginOffset[0] = decoder.getOffset();
decodeName(data.getName(), new int[1], new int[1], decoder, copy);
decodeMetaInfo(data.getMetaInfo(), decoder, copy);
data.setContent(new Blob(decoder.readBlobTlv(net.named_data.jndn.encoding.tlv.Tlv.Content), copy));
decodeSignatureInfo(data, decoder, copy);
signedPortionEndOffset[0] = decoder.getOffset();
data.getSignature().setSignature(
new Blob(decoder.readBlobTlv(net.named_data.jndn.encoding.tlv.Tlv.SignatureValue), copy));
decoder.finishNestedTlvs(endOffset);
}
/// <summary>
/// Encode data in NDN-TLV and return the encoding.
/// </summary>
///
/// <param name="data">The Data object to encode.</param>
/// <param name="signedPortionBeginOffset">If you are not encoding in order to sign, you can call encodeData(data) to ignore this returned value.</param>
/// <param name="signedPortionEndOffset">If you are not encoding in order to sign, you can call encodeData(data) to ignore this returned value.</param>
/// <returns>A Blob containing the encoding.</returns>
public override Blob encodeData(Data data, int[] signedPortionBeginOffset,
int[] signedPortionEndOffset)
{
TlvEncoder encoder = new TlvEncoder(1500);
int saveLength = encoder.getLength();
// Encode backwards.
encoder.writeBlobTlv(net.named_data.jndn.encoding.tlv.Tlv.SignatureValue, (data.getSignature())
.getSignature().buf());
int signedPortionEndOffsetFromBack = encoder.getLength();
encodeSignatureInfo(data.getSignature(), encoder);
encoder.writeBlobTlv(net.named_data.jndn.encoding.tlv.Tlv.Content, data.getContent().buf());
encodeMetaInfo(data.getMetaInfo(), encoder);
encodeName(data.getName(), new int[1], new int[1], encoder);
int signedPortionBeginOffsetFromBack = encoder.getLength();
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Data, encoder.getLength() - saveLength);
signedPortionBeginOffset[0] = encoder.getLength()
- signedPortionBeginOffsetFromBack;
signedPortionEndOffset[0] = encoder.getLength()
- signedPortionEndOffsetFromBack;
return new Blob(encoder.getOutput(), false);
}
/// <summary>
/// Create an E-KEY Data packet for the given public key.
/// </summary>
///
/// <param name="startTimeStamp">The start time stamp string to put in the name.</param>
/// <param name="endTimeStamp">The end time stamp string to put in the name.</param>
/// <param name="publicKeyBlob">A Blob of the public key DER.</param>
/// <returns>The Data packet.</returns>
/// <exception cref="System.Security.SecurityException">for an error using the security KeyChain.</exception>
private Data createEKeyData(String startTimeStamp, String endTimeStamp,
Blob publicKeyBlob)
{
Name name = new Name(namespace_);
name.append(net.named_data.jndn.encrypt.algo.Encryptor.NAME_COMPONENT_E_KEY).append(startTimeStamp)
.append(endTimeStamp);
Data data = new Data(name);
data.getMetaInfo().setFreshnessPeriod(
freshnessHours_ * MILLISECONDS_IN_HOUR);
data.setContent(publicKeyBlob);
keyChain_.sign(data);
return data;
}
/// <summary>
/// Create a D-KEY Data packet with an EncryptedContent for the given private
/// key, encrypted with the certificate key.
/// </summary>
///
/// <param name="startTimeStamp">The start time stamp string to put in the name.</param>
/// <param name="endTimeStamp">The end time stamp string to put in the name.</param>
/// <param name="keyName"></param>
/// <param name="privateKeyBlob">A Blob of the encoded private key.</param>
/// <param name="certificateKey"></param>
/// <returns>The Data packet.</returns>
/// <exception cref="System.Security.SecurityException">for an error using the security KeyChain.</exception>
private Data createDKeyData(String startTimeStamp, String endTimeStamp,
Name keyName, Blob privateKeyBlob, Blob certificateKey)
{
Name name = new Name(namespace_);
name.append(net.named_data.jndn.encrypt.algo.Encryptor.NAME_COMPONENT_D_KEY);
name.append(startTimeStamp).append(endTimeStamp);
Data data = new Data(name);
data.getMetaInfo().setFreshnessPeriod(
freshnessHours_ * MILLISECONDS_IN_HOUR);
EncryptParams encryptParams = new EncryptParams(
net.named_data.jndn.encrypt.algo.EncryptAlgorithmType.RsaOaep);
try {
net.named_data.jndn.encrypt.algo.Encryptor.encryptData(data, privateKeyBlob, keyName,
certificateKey, encryptParams);
} catch (Exception ex) {
// Consolidate errors such as InvalidKeyException.
throw new SecurityException(
"createDKeyData: Error in encryptData: " + ex.Message);
}
keyChain_.sign(data);
return data;
}
public void onVerified(Data data, Interest originalInterest_0)
{
if (!endsWithSegmentNumber(data.getName())) {
// We don't expect a name without a segment number. Treat it as a bad packet.
try {
onError_.onError(net.named_data.jndn.util.SegmentFetcher.ErrorCode.DATA_HAS_NO_SEGMENT,
"Got an unexpected packet without a segment number: "
+ data.getName().toUri());
} catch (Exception ex) {
logger_.log(ILOG.J2CsMapping.Util.Logging.Level.SEVERE, "Error in onError", ex);
}
} else {
long currentSegment;
try {
currentSegment = data.getName().get(-1).toSegment();
} catch (EncodingException ex_1) {
try {
onError_.onError(net.named_data.jndn.util.SegmentFetcher.ErrorCode.DATA_HAS_NO_SEGMENT,
"Error decoding the name segment number "
+ data.getName().get(-1).toEscapedString()
+ ": " + ex_1);
} catch (Exception exception) {
logger_.log(ILOG.J2CsMapping.Util.Logging.Level.SEVERE, "Error in onError", exception);
}
return;
}
long expectedSegmentNumber = contentParts_.Count;
if (currentSegment != expectedSegmentNumber) {
// Try again to get the expected segment. This also includes the case
// where the first segment is not segment 0.
fetchNextSegment(originalInterest_0, data.getName(),
expectedSegmentNumber);
} else {
// Save the content and check if we are finished.
ILOG.J2CsMapping.Collections.Collections.Add(contentParts_,data.getContent());
if (data.getMetaInfo().getFinalBlockId().getValue().size() > 0) {
long finalSegmentNumber;
try {
finalSegmentNumber = data.getMetaInfo()
.getFinalBlockId().toSegment();
} catch (EncodingException ex_2) {
try {
onError_.onError(net.named_data.jndn.util.SegmentFetcher.ErrorCode.DATA_HAS_NO_SEGMENT,
"Error decoding the FinalBlockId segment number "
+ data.getMetaInfo()
.getFinalBlockId()
.toEscapedString() + ": "
+ ex_2);
} catch (Exception exception_3) {
logger_.log(ILOG.J2CsMapping.Util.Logging.Level.SEVERE, "Error in onError",
exception_3);
}
return;
}
if (currentSegment == finalSegmentNumber) {
// We are finished.
// Get the total size and concatenate to get content.
int totalSize = 0;
for (int i = 0; i < contentParts_.Count; ++i)
totalSize += ((Blob) contentParts_[i]).size();
ByteBuffer content = ILOG.J2CsMapping.NIO.ByteBuffer.allocate(totalSize);
for (int i_4 = 0; i_4 < contentParts_.Count; ++i_4)
content.put(((Blob) contentParts_[i_4]).buf());
content.flip();
try {
onComplete_.onComplete(new Blob(content, false));
} catch (Exception ex_5) {
logger_.log(ILOG.J2CsMapping.Util.Logging.Level.SEVERE, "Error in onComplete", ex_5);
}
return;
}
}
// Fetch the next segment.
fetchNextSegment(originalInterest_0, data.getName(),
expectedSegmentNumber + 1);
}
}
}
static void Main(string[] args)
{
var data = new Data();
data.wireDecode(new Blob(TlvData));
Console.Out.WriteLine("Decoded Data:");
dumpData(data);
// Set the content again to clear the cached encoding so we encode again.
data.setContent(data.getContent());
var encoding = data.wireEncode();
var reDecodedData = new Data();
reDecodedData.wireDecode(encoding);
Console.Out.WriteLine("");
Console.Out.WriteLine("Re-decoded Data:");
dumpData(reDecodedData);
var identityStorage = new MemoryIdentityStorage();
var privateKeyStorage = new MemoryPrivateKeyStorage();
var keyChain = new KeyChain
(new IdentityManager(identityStorage, privateKeyStorage),
new SelfVerifyPolicyManager(identityStorage));
// Initialize the storage.
var keyName = new Name("/testname/DSK-123");
var certificateName = keyName.getSubName(0, keyName.size() - 1).append
("KEY").append(keyName.get(-1)).append("ID-CERT").append("0");
identityStorage.addKey(keyName, KeyType.RSA, new Blob(DEFAULT_RSA_PUBLIC_KEY_DER));
privateKeyStorage.setKeyPairForKeyName
(keyName, KeyType.RSA, new ByteBuffer(DEFAULT_RSA_PUBLIC_KEY_DER),
new ByteBuffer(DEFAULT_RSA_PRIVATE_KEY_DER));
VerifyCallbacks callbacks = new VerifyCallbacks("Re-decoded Data");
keyChain.verifyData(reDecodedData, callbacks, callbacks);
var freshData = new Data(new Name("/ndn/abc"));
freshData.setContent(new Blob("SUCCESS!"));
freshData.getMetaInfo().setFreshnessPeriod(5000);
freshData.getMetaInfo().setFinalBlockId(new Name("/%00%09").get(0));
keyChain.sign(freshData, certificateName);
Console.Out.WriteLine("");
Console.Out.WriteLine("Freshly-signed Data:");
dumpData(freshData);
callbacks = new VerifyCallbacks("Freshly-signed Data");
keyChain.verifyData(freshData, callbacks, callbacks);
}
static void dumpData(Data data)
{
Console.Out.WriteLine("name: " + data.getName().toUri());
if (data.getContent().size() > 0) {
Console.Out.Write("content (raw): ");
var buf = data.getContent().buf();
while(buf.remaining() > 0)
Console.Out.Write((char)buf.get());
Console.Out.WriteLine("");
Console.Out.WriteLine("content (hex): " + data.getContent().toHex());
}
else
Console.Out.WriteLine("content: <empty>");
if (!(data.getMetaInfo().getType() == ContentType.BLOB)) {
Console.Out.Write("metaInfo.type: ");
if (data.getMetaInfo().getType() == ContentType.KEY)
Console.Out.WriteLine("KEY");
else if (data.getMetaInfo().getType() == ContentType.LINK)
Console.Out.WriteLine("LINK");
else if (data.getMetaInfo().getType() == ContentType.NACK)
Console.Out.WriteLine("NACK");
else if (data.getMetaInfo().getType() == ContentType.OTHER_CODE)
Console.Out.WriteLine("other code " + data.getMetaInfo().getOtherTypeCode());
}
Console.Out.WriteLine("metaInfo.freshnessPeriod (milliseconds): " +
(data.getMetaInfo().getFreshnessPeriod() >= 0 ?
"" + data.getMetaInfo().getFreshnessPeriod() : "<none>"));
Console.Out.WriteLine("metaInfo.finalBlockId: " +
(data.getMetaInfo().getFinalBlockId().getValue().size() > 0 ?
data.getMetaInfo().getFinalBlockId().getValue().toHex() : "<none>"));
KeyLocator keyLocator = null;
if (data.getSignature() is Sha256WithRsaSignature) {
var signature = (Sha256WithRsaSignature)data.getSignature();
Console.Out.WriteLine("Sha256WithRsa signature.signature: " +
(signature.getSignature().size() > 0 ?
signature.getSignature().toHex() : "<none>"));
keyLocator = signature.getKeyLocator();
}
else if (data.getSignature() is Sha256WithEcdsaSignature) {
var signature = (Sha256WithEcdsaSignature)data.getSignature();
Console.Out.WriteLine("Sha256WithEcdsa signature.signature: " +
(signature.getSignature().size() > 0 ?
signature.getSignature().toHex() : "<none>"));
keyLocator = signature.getKeyLocator();
}
else if (data.getSignature() is HmacWithSha256Signature) {
var signature = (HmacWithSha256Signature)data.getSignature();
Console.Out.WriteLine("HmacWithSha256 signature.signature: " +
(signature.getSignature().size() > 0 ?
signature.getSignature().toHex() : "<none>"));
keyLocator = signature.getKeyLocator();
}
else if (data.getSignature() is DigestSha256Signature) {
var signature = (DigestSha256Signature)data.getSignature();
Console.Out.WriteLine("DigestSha256 signature.signature: " +
(signature.getSignature().size() > 0 ?
signature.getSignature().toHex() : "<none>"));
}
else if (data.getSignature() is GenericSignature) {
var signature = (GenericSignature)data.getSignature();
Console.Out.WriteLine("Generic signature.signature: " +
(signature.getSignature().size() > 0 ?
signature.getSignature().toHex() : "<none>"));
Console.Out.WriteLine(" Type code: " + signature.getTypeCode() + " signatureInfo: " +
(signature.getSignatureInfoEncoding().size() > 0 ?
signature.getSignatureInfoEncoding().toHex() : "<none>"));
}
if (keyLocator != null) {
Console.Out.Write("signature.keyLocator: ");
if (keyLocator.getType() == KeyLocatorType.NONE)
Console.Out.WriteLine("<none>");
else if (keyLocator.getType() ==KeyLocatorType.KEY_LOCATOR_DIGEST)
Console.Out.WriteLine("KeyLocatorDigest: " + keyLocator.getKeyData().toHex());
else if (keyLocator.getType() == KeyLocatorType.KEYNAME)
Console.Out.WriteLine("KeyName: " + keyLocator.getKeyName().toUri());
else
Console.Out.WriteLine("<unrecognized ndn_KeyLocatorType>");
}
}