diff options
Diffstat (limited to 'core/src/test/java/org/spongycastle/asn1/test/X9Test.java')
| -rw-r--r-- | core/src/test/java/org/spongycastle/asn1/test/X9Test.java | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/core/src/test/java/org/spongycastle/asn1/test/X9Test.java b/core/src/test/java/org/spongycastle/asn1/test/X9Test.java new file mode 100644 index 00000000..8c90e7ba --- /dev/null +++ b/core/src/test/java/org/spongycastle/asn1/test/X9Test.java @@ -0,0 +1,168 @@ +package org.spongycastle.asn1.test; + +import java.math.BigInteger; + +import org.spongycastle.asn1.ASN1OctetString; +import org.spongycastle.asn1.ASN1Primitive; +import org.spongycastle.asn1.DEROctetString; +import org.spongycastle.asn1.pkcs.PrivateKeyInfo; +import org.spongycastle.asn1.sec.ECPrivateKey; +import org.spongycastle.asn1.x509.AlgorithmIdentifier; +import org.spongycastle.asn1.x509.SubjectPublicKeyInfo; +import org.spongycastle.asn1.x9.X962NamedCurves; +import org.spongycastle.asn1.x9.X962Parameters; +import org.spongycastle.asn1.x9.X9ECParameters; +import org.spongycastle.asn1.x9.X9ECPoint; +import org.spongycastle.asn1.x9.X9IntegerConverter; +import org.spongycastle.asn1.x9.X9ObjectIdentifiers; +import org.spongycastle.math.ec.ECPoint; +import org.spongycastle.util.Arrays; +import org.spongycastle.util.encoders.Base64; +import org.spongycastle.util.test.SimpleTest; + +public class X9Test + extends SimpleTest +{ + private byte[] namedPub = Base64.decode("MDcwEwYHKoZIzj0CAQYIKoZIzj0DAQEDIAADG5xRI+Iki/JrvL20hoDUa7Cggzorv5B9yyqSMjYu"); + private byte[] expPub = Base64.decode( + "MIH8MIHXBgcqhkjOPQIBMIHLAgEBMCkGByqGSM49AQECHn///////////////3///////4AAAA" + + "AAAH///////zBXBB5///////////////9///////+AAAAAAAB///////wEHiVXBfoqMGZUsfTL" + + "A9anUKMMJQEC1JiHF9m6FattPgMVAH1zdBaP/jRxtgqFdoahlHXTv6L/BB8DZ2iujhi7ks/PAF" + + "yUmqLG2UhT0OZgu/hUsclQX+laAh5///////////////9///+XXetBs6YFfDxDIUZSZVECAQED" + + "IAADG5xRI+Iki/JrvL20hoDUa7Cggzorv5B9yyqSMjYu"); + + private byte[] namedPriv = Base64.decode("MCICAQAwEwYHKoZIzj0CAQYIKoZIzj0DAQEECDAGAgEBBAEK"); + private byte[] expPriv = Base64.decode( + "MIHnAgEAMIHXBgcqhkjOPQIBMIHLAgEBMCkGByqGSM49AQECHn///////////////3///////4" + + "AAAAAAAH///////zBXBB5///////////////9///////+AAAAAAAB///////wEHiVXBfoqMGZU" + + "sfTLA9anUKMMJQEC1JiHF9m6FattPgMVAH1zdBaP/jRxtgqFdoahlHXTv6L/BB8DZ2iujhi7ks" + + "/PAFyUmqLG2UhT0OZgu/hUsclQX+laAh5///////////////9///+XXetBs6YFfDxDIUZSZVEC" + + "AQEECDAGAgEBBAEU"); + + private void encodePublicKey() + throws Exception + { + X9ECParameters ecP = X962NamedCurves.getByOID(X9ObjectIdentifiers.prime239v3); + + X9IntegerConverter conv = new X9IntegerConverter(); + + if (conv.getByteLength(ecP.getCurve()) != 30) + { + fail("wrong byte length reported for curve"); + } + + if (ecP.getCurve().getFieldSize() != 239) + { + fail("wrong field size reported for curve"); + } + + // + // named curve + // + X962Parameters params = new X962Parameters(X9ObjectIdentifiers.prime192v1); + ECPoint point = ecP.getG().multiply(BigInteger.valueOf(100)); + + ASN1OctetString p = new DEROctetString(point.getEncoded(true)); + + SubjectPublicKeyInfo info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), p.getOctets()); + if (!areEqual(info.getEncoded(), namedPub)) + { + fail("failed public named generation"); + } + + X9ECPoint x9P = new X9ECPoint(ecP.getCurve(), p); + + if (!Arrays.areEqual(p.getOctets(), x9P.getPoint().getEncoded())) + { + fail("point encoding not preserved"); + } + + ASN1Primitive o = ASN1Primitive.fromByteArray(namedPub); + + if (!info.equals(o)) + { + fail("failed public named equality"); + } + + // + // explicit curve parameters + // + params = new X962Parameters(ecP); + + info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), p.getOctets()); + + if (!areEqual(info.getEncoded(), expPub)) + { + fail("failed public explicit generation"); + } + + o = ASN1Primitive.fromByteArray(expPub); + + if (!info.equals(o)) + { + fail("failed public explicit equality"); + } + } + + private void encodePrivateKey() + throws Exception + { + X9ECParameters ecP = X962NamedCurves.getByOID(X9ObjectIdentifiers.prime239v3); + + // + // named curve + // + X962Parameters params = new X962Parameters(X9ObjectIdentifiers.prime192v1); + + PrivateKeyInfo info = new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), new ECPrivateKey(BigInteger.valueOf(10))); + + if (!areEqual(info.getEncoded(), namedPriv)) + { + fail("failed private named generation"); + } + + ASN1Primitive o = ASN1Primitive.fromByteArray(namedPriv); + + if (!info.equals(o)) + { + fail("failed private named equality"); + } + + // + // explicit curve parameters + // + params = new X962Parameters(ecP); + + info = new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params), new ECPrivateKey(BigInteger.valueOf(20))); + + if (!areEqual(info.getEncoded(), expPriv)) + { + fail("failed private explicit generation"); + } + + o = ASN1Primitive.fromByteArray(expPriv); + + if (!info.equals(o)) + { + fail("failed private explicit equality"); + } + } + + public void performTest() + throws Exception + { + encodePublicKey(); + encodePrivateKey(); + } + + public String getName() + { + return "X9"; + } + + public static void main( + String[] args) + { + runTest(new X9Test()); + } +} |