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2006-02-15 jrandom

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* Merged in the i2p_0_6_1_10_PRE branch to the trunk, so CVS HEAD is no
      longer backwards compatible (and should not be used until 0.6.1.1 is
      out)
This commit is contained in:
jrandom
2006-02-15 05:33:17 +00:00
committed by zzz
parent 1374ea0ea1
commit 113fbc1df3
127 changed files with 2687 additions and 1309 deletions
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5
core/java/src/net/i2p/client/SessionStatusMessageHandler.java
View File

@@ -34,10 +34,11 @@ class SessionStatusMessageHandler extends HandlerImpl {
break;
case SessionStatusMessage.STATUS_DESTROYED:
_log.info("Session destroyed");
session.destroySession();
//session.destroySession();
session.reconnect(); // la la la
break;
case SessionStatusMessage.STATUS_INVALID:
session.destroySession();
session.destroySession(); // ok, honor this destroy message, because we're b0rked
break;
case SessionStatusMessage.STATUS_UPDATED:
_log.info("Session status updated");

2
core/java/src/net/i2p/crypto/DHSessionKeyBuilder.java
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@@ -228,7 +228,7 @@ public class DHSessionKeyBuilder {
*/
public BigInteger generateMyValue() {
long start = System.currentTimeMillis();
_myPrivateValue = new NativeBigInteger(2048, RandomSource.getInstance());
_myPrivateValue = new NativeBigInteger(KeyGenerator.PUBKEY_EXPONENT_SIZE, RandomSource.getInstance());
BigInteger myValue = CryptoConstants.elgg.modPow(_myPrivateValue, CryptoConstants.elgp);
long end = System.currentTimeMillis();
long diff = end - start;

2
core/java/src/net/i2p/crypto/HMACSHA256Generator.java
View File

@@ -40,7 +40,7 @@ public class HMACSHA256Generator {
_useMD5 = true;
else
_useMD5 = false;
if ("true".equals(context.getProperty("i2p.HMACBrokenSize", "true")))
if ("true".equals(context.getProperty("i2p.HMACBrokenSize", "false")))
_macSize = 32;
else
_macSize = (_useMD5 ? 16 : 32);

18
core/java/src/net/i2p/crypto/KeyGenerator.java
View File

@@ -52,13 +52,27 @@ public class KeyGenerator {
key.setData(data);
return key;
}
/** standard exponent size */
private static final int PUBKEY_EXPONENT_SIZE_FULL = 2048;
/**
* short exponent size, which should be safe for use with the Oakley primes,
* per "On Diffie-Hellman Key Agreement with Short Exponents" - van Oorschot, Weiner
* at EuroCrypt 96, and crypto++'s benchmarks at http://www.eskimo.com/~weidai/benchmarks.html
* Also, "Koshiba & Kurosawa: Short Exponent Diffie-Hellman Problems" (PKC 2004, LNCS 2947, pp. 173-186)
* aparently supports this, according to
* http://groups.google.com/group/sci.crypt/browse_thread/thread/1855a5efa7416677/339fa2f945cc9ba0#339fa2f945cc9ba0
* (damn commercial access to http://www.springerlink.com/(xrkdvv45w0cmnur4aimsxx55)/app/home/contribution.asp?referrer=parent&backto=issue,13,31;journal,893,3280;linkingpublicationresults,1:105633,1 )
*/
private static final int PUBKEY_EXPONENT_SIZE_SHORT = 226;
public static final int PUBKEY_EXPONENT_SIZE = PUBKEY_EXPONENT_SIZE_SHORT;
/** Generate a pair of keys, where index 0 is a PublicKey, and
* index 1 is a PrivateKey
* @return pair of keys
*/
public Object[] generatePKIKeypair() {
BigInteger a = new NativeBigInteger(2048, _context.random());
BigInteger a = new NativeBigInteger(PUBKEY_EXPONENT_SIZE, _context.random());
BigInteger aalpha = CryptoConstants.elgg.modPow(a, CryptoConstants.elgp);
Object[] keys = new Object[2];
@@ -130,7 +144,7 @@ public class KeyGenerator {
* Pad the buffer w/ leading 0s or trim off leading bits so the result is the
* given length.
*/
private final static byte[] padBuffer(byte src[], int length) {
final static byte[] padBuffer(byte src[], int length) {
byte buf[] = new byte[length];
if (src.length > buf.length) // extra bits, chop leading bits

2
core/java/src/net/i2p/crypto/YKGenerator.java
View File

@@ -129,7 +129,7 @@ class YKGenerator {
long t1 = 0;
while (k == null) {
t0 = Clock.getInstance().now();
k = new NativeBigInteger(2048, RandomSource.getInstance());
k = new NativeBigInteger(KeyGenerator.PUBKEY_EXPONENT_SIZE, RandomSource.getInstance());
t1 = Clock.getInstance().now();
if (BigInteger.ZERO.compareTo(k) == 0) {
k = null;

4
core/java/src/net/i2p/data/Certificate.java
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@@ -34,6 +34,8 @@ public class Certificate extends DataStructureImpl {
public final static int CERTIFICATE_TYPE_NULL = 0;
/** specifies a Hashcash style certificate */
public final static int CERTIFICATE_TYPE_HASHCASH = 1;
/** we should not be used for anything (don't use us in the netDb, in tunnels, or tell others about us) */
public final static int CERTIFICATE_TYPE_HIDDEN = 2;
public Certificate() {
_type = 0;
@@ -76,7 +78,7 @@ public class Certificate extends DataStructureImpl {
public void writeBytes(OutputStream out) throws DataFormatException, IOException {
if (_type < 0) throw new DataFormatException("Invalid certificate type: " + _type);
if ((_type != 0) && (_payload == null)) throw new DataFormatException("Payload is required for non null type");
//if ((_type != 0) && (_payload == null)) throw new DataFormatException("Payload is required for non null type");
DataHelper.writeLong(out, 1, _type);
if (_payload != null) {

10
core/java/src/net/i2p/data/RouterIdentity.java
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@@ -63,6 +63,16 @@ public class RouterIdentity extends DataStructureImpl {
_signingKey = key;
__calculatedHash = null;
}
/**
* This router specified that they should not be used as a part of a tunnel,
* nor queried for the netDb, and that disclosure of their contact information
* should be limited.
*
*/
public boolean isHidden() {
return (_certificate != null) && (_certificate.getCertificateType() == Certificate.CERTIFICATE_TYPE_HIDDEN);
}
public void readBytes(InputStream in) throws DataFormatException, IOException {
_publicKey = new PublicKey();

36
core/java/src/net/i2p/util/DecayingBloomFilter.java
View File

@@ -80,14 +80,17 @@ public class DecayingBloomFilter {
*
*/
public boolean add(byte entry[]) {
return add(entry, 0, entry.length);
}
public boolean add(byte entry[], int off, int len) {
if (ALWAYS_MISS) return false;
if (entry == null)
throw new IllegalArgumentException("Null entry");
if (entry.length != _entryBytes)
throw new IllegalArgumentException("Bad entry [" + entry.length + ", expected "
if (len != _entryBytes)
throw new IllegalArgumentException("Bad entry [" + len + ", expected "
+ _entryBytes + "]");
synchronized (this) {
return locked_add(entry);
return locked_add(entry, off, len);
}
}
@@ -101,14 +104,15 @@ public class DecayingBloomFilter {
if (ALWAYS_MISS) return false;
synchronized (this) {
if (_entryBytes <= 7)
entry &= _longToEntryMask;
entry = ((entry ^ _longToEntryMask) & ((1 << 31)-1)) | (entry ^ _longToEntryMask);
//entry &= _longToEntryMask;
if (entry < 0) {
DataHelper.toLong(_longToEntry, 0, _entryBytes, 0-entry);
_longToEntry[0] |= (1 << 7);
} else {
DataHelper.toLong(_longToEntry, 0, _entryBytes, entry);
}
return locked_add(_longToEntry);
return locked_add(_longToEntry, 0, _longToEntry.length);
}
}
@@ -121,26 +125,26 @@ public class DecayingBloomFilter {
if (ALWAYS_MISS) return false;
synchronized (this) {
if (_entryBytes <= 7)
entry &= _longToEntryMask;
entry = ((entry ^ _longToEntryMask) & ((1 << 31)-1)) | (entry ^ _longToEntryMask);
if (entry < 0) {
DataHelper.toLong(_longToEntry, 0, _entryBytes, 0-entry);
_longToEntry[0] |= (1 << 7);
} else {
DataHelper.toLong(_longToEntry, 0, _entryBytes, entry);
}
return locked_add(_longToEntry, false);
return locked_add(_longToEntry, 0, _longToEntry.length, false);
}
}
private boolean locked_add(byte entry[]) {
return locked_add(entry, true);
private boolean locked_add(byte entry[], int offset, int len) {
return locked_add(entry, offset, len, true);
}
private boolean locked_add(byte entry[], boolean addIfNew) {
private boolean locked_add(byte entry[], int offset, int len, boolean addIfNew) {
if (_extended != null) {
// extend the entry to 32 bytes
System.arraycopy(entry, 0, _extended, 0, entry.length);
System.arraycopy(entry, offset, _extended, 0, len);
for (int i = 0; i < _extenders.length; i++)
DataHelper.xor(entry, 0, _extenders[i], 0, _extended, _entryBytes * (i+1), _entryBytes);
DataHelper.xor(entry, offset, _extenders[i], 0, _extended, _entryBytes * (i+1), _entryBytes);
boolean seen = _current.member(_extended);
seen = seen || _previous.member(_extended);
@@ -155,15 +159,15 @@ public class DecayingBloomFilter {
return false;
}
} else {
boolean seen = _current.locked_member(entry);
seen = seen || _previous.locked_member(entry);
boolean seen = _current.locked_member(entry, offset, len);
seen = seen || _previous.locked_member(entry, offset, len);
if (seen) {
_currentDuplicates++;
return true;
} else {
if (addIfNew) {
_current.locked_insert(entry);
_previous.locked_insert(entry);
_current.locked_insert(entry, offset, len);
_previous.locked_insert(entry, offset, len);
}
return false;
}

31
core/java/src/net/i2p/util/NativeBigInteger.java
View File

@@ -103,6 +103,7 @@ public class NativeBigInteger extends BigInteger {
private final static String JBIGI_OPTIMIZATION_PENTIUM2 = "pentium2";
private final static String JBIGI_OPTIMIZATION_PENTIUM3 = "pentium3";
private final static String JBIGI_OPTIMIZATION_PENTIUM4 = "pentium4";
private final static String JBIGI_OPTIMIZATION_VIAC3 = "viac3";
private static final boolean _isWin = System.getProperty("os.name").startsWith("Win");
private static final boolean _isOS2 = System.getProperty("os.name").startsWith("OS/2");
@@ -134,6 +135,8 @@ public class NativeBigInteger extends BigInteger {
try {
CPUInfo c = CPUID.getInfo();
if (c.IsC3Compatible())
return JBIGI_OPTIMIZATION_VIAC3;
if (c instanceof AMDCPUInfo) {
AMDCPUInfo amdcpu = (AMDCPUInfo) c;
if (amdcpu.IsAthlon64Compatible())
@@ -146,20 +149,18 @@ public class NativeBigInteger extends BigInteger {
return JBIGI_OPTIMIZATION_K6_2;
if (amdcpu.IsK6Compatible())
return JBIGI_OPTIMIZATION_K6;
} else {
if (c instanceof IntelCPUInfo) {
IntelCPUInfo intelcpu = (IntelCPUInfo) c;
if (intelcpu.IsPentium4Compatible())
return JBIGI_OPTIMIZATION_PENTIUM4;
if (intelcpu.IsPentium3Compatible())
return JBIGI_OPTIMIZATION_PENTIUM3;
if (intelcpu.IsPentium2Compatible())
return JBIGI_OPTIMIZATION_PENTIUM2;
if (intelcpu.IsPentiumMMXCompatible())
return JBIGI_OPTIMIZATION_PENTIUMMMX;
if (intelcpu.IsPentiumCompatible())
return JBIGI_OPTIMIZATION_PENTIUM;
}
} else if (c instanceof IntelCPUInfo) {
IntelCPUInfo intelcpu = (IntelCPUInfo) c;
if (intelcpu.IsPentium4Compatible())
return JBIGI_OPTIMIZATION_PENTIUM4;
if (intelcpu.IsPentium3Compatible())
return JBIGI_OPTIMIZATION_PENTIUM3;
if (intelcpu.IsPentium2Compatible())
return JBIGI_OPTIMIZATION_PENTIUM2;
if (intelcpu.IsPentiumMMXCompatible())
return JBIGI_OPTIMIZATION_PENTIUMMMX;
if (intelcpu.IsPentiumCompatible())
return JBIGI_OPTIMIZATION_PENTIUM;
}
return null;
} catch (UnknownCPUException e) {
@@ -287,7 +288,7 @@ public class NativeBigInteger extends BigInteger {
int runsProcessed = 0;
for (runsProcessed = 0; runsProcessed < numRuns; runsProcessed++) {
BigInteger bi = new BigInteger(2048, rand);
BigInteger bi = new BigInteger(226, rand); // 2048, rand); //
NativeBigInteger g = new NativeBigInteger(_sampleGenerator);
NativeBigInteger p = new NativeBigInteger(_samplePrime);
NativeBigInteger k = new NativeBigInteger(1, bi.toByteArray());