org.bouncycastle.pqc.crypto.test

Class XMSSStateEncodingTest

java.lang.Object

junit.framework.Assert

junit.framework.TestCase

org.bouncycastle.pqc.crypto.test.XMSSStateEncodingTest

All Implemented Interfaces:

junit.framework.Test

public class XMSSStateEncodingTest
extends junit.framework.TestCase

Constructor Summary

Constructors

Constructor and Description
XMSSStateEncodingTest()

Method Summary

Modifier and Type	Method and Description
void	testStateChecksumRejectsCorruption() The encoded BDS state carries a checksum over itself, bound to the owning key's public seed, and a key whose state does not match it is refused.
void	testStateCollectionCountIsBoundedBeforeAllocation()
void	testXmssBuilderRejectsStateForDifferentParameters()
void	testXmssMtBuilderRejectsStateForDifferentParameters()
void	testXmssMtPrivateKeyAcceptsLegacyBdsStateChoice()
void	testXmssMtPrivateKeyInfoUsesBinaryBdsStateChoice()
void	testXmssMtPrivateKeyRejectsUnknownBdsStateChoice()
void	testXmssMtReadsLegacyJavaSerializedState()
void	testXmssMtStateRoundTripsAcrossTreeUpdates()
void	testXmssMtUsesBinaryStateEncoding()
void	testXmssPrivateKeyAcceptsLegacyBdsStateChoice()
void	testXmssPrivateKeyInfoUsesBinaryBdsStateChoice()
void	testXmssPrivateKeyRejectsUnknownBdsStateChoice()
void	testXmssReadsLegacyJavaSerializedState()
void	testXmssStateRoundTripsAcrossTreeUpdates()
void	testXmssUsesBinaryStateEncoding()

Methods inherited from class junit.framework.TestCase

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, countTestCases, createResult, fail, fail, failNotEquals, failNotSame, failSame, format, getName, run, run, runBare, runTest, setName, setUp, tearDown, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

XMSSStateEncodingTest

public XMSSStateEncodingTest()

Method Detail

testXmssUsesBinaryStateEncoding

public void testXmssUsesBinaryStateEncoding()
                                     throws java.lang.Exception

Throws:

java.lang.Exception

testXmssMtUsesBinaryStateEncoding

public void testXmssMtUsesBinaryStateEncoding()
                                       throws java.lang.Exception

Throws:

java.lang.Exception

testXmssReadsLegacyJavaSerializedState

public void testXmssReadsLegacyJavaSerializedState()
                                            throws java.lang.Exception

Throws:

java.lang.Exception

testXmssMtReadsLegacyJavaSerializedState

public void testXmssMtReadsLegacyJavaSerializedState()
                                              throws java.lang.Exception

Throws:

java.lang.Exception

testStateChecksumRejectsCorruption

public void testStateChecksumRejectsCorruption()
                                        throws java.lang.Exception

The encoded BDS state carries a checksum over itself, bound to the owning key's public seed, and a key whose state does not match it is refused. The node values inside a BDS state cannot be checked any other way - a path, stack, retain or keep node does not have its children stored beside it, so recomputing one means rebuilding a subtree, which is the work the state exists to avoid - so before this a corrupted state was accepted and then produced signatures that silently did not verify.

Note what this is and is not: an error-detecting code against bit rot, partial writes and truncated records, not integrity protection. Anyone able to rewrite the stored key recomputes it (github #2414).

Throws:

java.lang.Exception

testStateCollectionCountIsBoundedBeforeAllocation

public void testStateCollectionCountIsBoundedBeforeAllocation()
                                                       throws java.lang.Exception

Throws:

java.lang.Exception

testXmssBuilderRejectsStateForDifferentParameters

public void testXmssBuilderRejectsStateForDifferentParameters()
                                                       throws java.lang.Exception

Throws:

java.lang.Exception

testXmssMtBuilderRejectsStateForDifferentParameters

public void testXmssMtBuilderRejectsStateForDifferentParameters()
                                                         throws java.lang.Exception

Throws:

java.lang.Exception

testXmssStateRoundTripsAcrossTreeUpdates

public void testXmssStateRoundTripsAcrossTreeUpdates()
                                              throws java.lang.Exception

Throws:

java.lang.Exception

testXmssMtStateRoundTripsAcrossTreeUpdates

public void testXmssMtStateRoundTripsAcrossTreeUpdates()
                                                throws java.lang.Exception

Throws:

java.lang.Exception

testXmssPrivateKeyInfoUsesBinaryBdsStateChoice

public void testXmssPrivateKeyInfoUsesBinaryBdsStateChoice()
                                                    throws java.lang.Exception

Throws:

java.lang.Exception

testXmssPrivateKeyAcceptsLegacyBdsStateChoice

public void testXmssPrivateKeyAcceptsLegacyBdsStateChoice()
                                                   throws java.lang.Exception

Throws:

java.lang.Exception

testXmssPrivateKeyRejectsUnknownBdsStateChoice

public void testXmssPrivateKeyRejectsUnknownBdsStateChoice()
                                                    throws java.lang.Exception

Throws:

java.lang.Exception

testXmssMtPrivateKeyInfoUsesBinaryBdsStateChoice

public void testXmssMtPrivateKeyInfoUsesBinaryBdsStateChoice()
                                                      throws java.lang.Exception

Throws:

java.lang.Exception

testXmssMtPrivateKeyAcceptsLegacyBdsStateChoice

public void testXmssMtPrivateKeyAcceptsLegacyBdsStateChoice()
                                                     throws java.lang.Exception

Throws:

java.lang.Exception

testXmssMtPrivateKeyRejectsUnknownBdsStateChoice

public void testXmssMtPrivateKeyRejectsUnknownBdsStateChoice()
                                                      throws java.lang.Exception

Throws:

java.lang.Exception