| package org.bouncycastle.jce.provider.test; |
| |
| import java.io.ByteArrayInputStream; |
| import java.math.BigInteger; |
| import java.security.InvalidKeyException; |
| import java.security.KeyPair; |
| import java.security.KeyPairGenerator; |
| import java.security.KeyStore; |
| import java.security.PrivateKey; |
| import java.security.PublicKey; |
| import java.security.Security; |
| import java.security.SignatureException; |
| import java.security.cert.Certificate; |
| import java.security.cert.X509Certificate; |
| import java.util.Date; |
| |
| import org.bouncycastle.asn1.ASN1InputStream; |
| import org.bouncycastle.asn1.x9.X9ECParameters; |
| import org.bouncycastle.jce.X509Principal; |
| import org.bouncycastle.jce.interfaces.ECPointEncoder; |
| import org.bouncycastle.jce.interfaces.ECPrivateKey; |
| import org.bouncycastle.jce.interfaces.ECPublicKey; |
| import org.bouncycastle.jce.provider.BouncyCastleProvider; |
| import org.bouncycastle.jce.spec.ECParameterSpec; |
| import org.bouncycastle.math.ec.ECCurve; |
| import org.bouncycastle.util.encoders.Hex; |
| import org.bouncycastle.util.test.SimpleTest; |
| import org.bouncycastle.x509.X509V3CertificateGenerator; |
| |
| public class ECEncodingTest |
| extends SimpleTest |
| { |
| public String getName() |
| { |
| return "ECEncodingTest"; |
| } |
| |
| /** J.4.7 An Example with m = 304 */ |
| private int m = 304; |
| |
| /** f = 010000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000807 */ |
| private int k1 = 1; |
| private int k2 = 2; |
| private int k3 = 11; |
| private byte hexa[] = {(byte)0xFD, 0x0D, 0x69, 0x31, 0x49, (byte)0xA1, 0x18, (byte)0xF6, 0x51 |
| , (byte)0xE6, (byte)0xDC, (byte)0xE6, (byte)0x80, 0x20, (byte)0x85, 0x37, 0x7E, 0x5F, (byte)0x88, 0x2D, 0x1B, 0x51 |
| , 0x0B, 0x44, 0x16, 0x00, 0x74, (byte)0xC1, 0x28, (byte)0x80, 0x78, 0x36, 0x5A, 0x03 |
| , (byte)0x96, (byte)0xC8, (byte)0xE6, (byte)0x81}; |
| private byte hexb[] = {(byte)0xBD, (byte)0xDB, (byte)0x97, (byte)0xE5, (byte)0x55 |
| , (byte)0xA5, (byte)0x0A, (byte)0x90, (byte)0x8E, (byte)0x43, (byte)0xB0 |
| , (byte)0x1C, (byte)0x79, (byte)0x8E, (byte)0xA5, (byte)0xDA, (byte)0xA6 |
| , (byte)0x78, (byte)0x8F, (byte)0x1E, (byte)0xA2, (byte)0x79 |
| , (byte)0x4E, (byte)0xFC, (byte)0xF5, (byte)0x71, (byte)0x66, (byte)0xB8 |
| , (byte)0xC1, (byte)0x40, (byte)0x39, (byte)0x60, (byte)0x1E |
| , (byte)0x55, (byte)0x82, (byte)0x73, (byte)0x40, (byte)0xBE}; |
| private BigInteger a = new BigInteger(1, hexa); |
| private BigInteger b = new BigInteger(1, hexb); |
| |
| /** Base point G (with point compression) */ |
| private byte enc[] = |
| {0x02, 0x19, 0x7B, 0x07, (byte)0x84, 0x5E, (byte)0x9B, (byte)0xE2, (byte)0xD9, 0x6A, (byte)0xDB, 0x0F |
| , 0x5F, 0x3C, 0x7F, 0x2C, (byte)0xFF, (byte)0xBD, 0x7A, 0x3E, (byte)0xB8, (byte)0xB6, (byte)0xFE, |
| (byte)0xC3, 0x5C, 0x7F, (byte)0xD6, 0x7F, 0x26, (byte)0xDD, (byte)0xF6 |
| , 0x28, 0x5A, 0x64, 0x4F, 0x74, 0x0A, 0x26, 0x14}; |
| |
| private void testPointCompression() |
| throws Exception |
| { |
| ECCurve curve = new ECCurve.F2m(m, k1, k2, k3, a, b); |
| curve.decodePoint(enc); |
| |
| int ks[] = new int[3]; |
| ks[0] = k3; |
| ks[1] = k2; |
| ks[2] = k1; |
| } |
| |
| public void performTest() |
| throws Exception |
| { |
| byte[] ecParams = Hex.decode("3081C8020101302806072A8648CE3D0101021D00D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FF303C041C68A5E62CA9CE6C1C299803A6C1530B514E182AD8B0042A59CAD29F43041C2580F63CCFE44138870713B1A92369E33E2135D266DBB372386C400B0439040D9029AD2C7E5CF4340823B2A87DC68C9E4CE3174C1E6EFDEE12C07D58AA56F772C0726F24C6B89E4ECDAC24354B9E99CAA3F6D3761402CD021D00D7C134AA264366862A18302575D0FB98D116BC4B6DDEBCA3A5A7939F020101"); |
| testParams(ecParams, true); |
| |
| testParams(ecParams, false); |
| |
| ecParams = Hex.decode("3081C8020101302806072A8648CE3D0101021D00D7C134AA264366862A18302575D1D787B09F075797DA89F57EC8C0FF303C041C56E6C7E4F11A7B4B961A4DCB5BD282EB22E42E9BCBE3E7B361F18012041C4BE3E7B361F18012F2353D22975E02D8D05D2C6F3342DD8F57D4C76F0439048D127A0C27E0DE207ED3B7FB98F83C8BD5A2A57C827F4B97874DEB2C1BAEB0C006958CE61BB1FC81F5389E288CB3E86E2ED91FB47B08FCCA021D00D7C134AA264366862A18302575D11A5F7AABFBA3D897FF5CA727AF53020101"); |
| testParams(ecParams, true); |
| |
| testParams(ecParams, false); |
| |
| ecParams = Hex.decode("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"); |
| testParams(ecParams, true); |
| |
| testParams(ecParams, false); |
| |
| testPointCompression(); |
| } |
| |
| private void testParams(byte[] ecParameterEncoded, boolean compress) |
| throws Exception |
| { |
| String keyStorePass = "myPass"; |
| ASN1InputStream in = new ASN1InputStream(new ByteArrayInputStream( |
| ecParameterEncoded)); |
| X9ECParameters params = X9ECParameters.getInstance(in |
| .readObject()); |
| KeyPair kp = null; |
| boolean success = false; |
| while (!success) |
| { |
| KeyPairGenerator kpg = KeyPairGenerator.getInstance("ECDSA"); |
| kpg.initialize(new ECParameterSpec(params.getCurve(), |
| params.getG(), params.getN(), params.getH(), params |
| .getSeed())); |
| kp = kpg.generateKeyPair(); |
| // The very old Problem... we need a certificate chain to |
| // save a private key... |
| ECPublicKey pubKey = (ECPublicKey)kp.getPublic(); |
| if (!compress) |
| { |
| ((ECPointEncoder)pubKey).setPointFormat("UNCOMPRESSED"); |
| } |
| byte[] x = pubKey.getQ().getAffineXCoord().toBigInteger().toByteArray(); |
| byte[] y = pubKey.getQ().getAffineYCoord().toBigInteger().toByteArray(); |
| if (x.length == y.length) |
| { |
| success = true; |
| } |
| } |
| |
| // The very old Problem... we need a certificate chain to |
| // save a private key... |
| |
| Certificate[] chain = new Certificate[] { generateSelfSignedSoftECCert( |
| kp, compress) }; |
| |
| KeyStore keyStore = KeyStore.getInstance("BKS"); |
| keyStore.load(null, keyStorePass.toCharArray()); |
| |
| keyStore.setCertificateEntry("ECCert", chain[0]); |
| |
| ECPrivateKey privateECKey = (ECPrivateKey)kp.getPrivate(); |
| keyStore.setKeyEntry("ECPrivKey", privateECKey, keyStorePass |
| .toCharArray(), chain); |
| |
| // Test ec sign / verify |
| ECPublicKey pub = (ECPublicKey)kp.getPublic(); |
| String oldPrivateKey = new String(Hex.encode(privateECKey.getEncoded())); |
| String oldPublicKey = new String(Hex.encode(pub.getEncoded())); |
| ECPrivateKey newKey = (ECPrivateKey)keyStore.getKey("ECPrivKey", |
| keyStorePass.toCharArray()); |
| ECPublicKey newPubKey = (ECPublicKey)keyStore.getCertificate( |
| "ECCert").getPublicKey(); |
| if (!compress) |
| { |
| ((ECPointEncoder)newKey).setPointFormat("UNCOMPRESSED"); |
| ((ECPointEncoder)newPubKey).setPointFormat("UNCOMPRESSED"); |
| } |
| |
| String newPrivateKey = new String(Hex.encode(newKey.getEncoded())); |
| String newPublicKey = new String(Hex.encode(newPubKey.getEncoded())); |
| |
| if (!oldPrivateKey.equals(newPrivateKey)) |
| { |
| fail("failed private key comparison"); |
| } |
| |
| if (!oldPublicKey.equals(newPublicKey)) |
| { |
| fail("failed public key comparison"); |
| } |
| } |
| |
| /** |
| * Create a self signed cert for our software emulation |
| * |
| * @param kp |
| * is the keypair for our certificate |
| * @return a self signed cert for our software emulation |
| * @throws InvalidKeyException |
| * on error |
| * @throws SignatureException |
| * on error |
| */ |
| private X509Certificate generateSelfSignedSoftECCert(KeyPair kp, |
| boolean compress) throws Exception |
| { |
| X509V3CertificateGenerator certGen = new X509V3CertificateGenerator(); |
| ECPrivateKey privECKey = (ECPrivateKey)kp.getPrivate(); |
| ECPublicKey pubECKey = (ECPublicKey)kp.getPublic(); |
| if (!compress) |
| { |
| ((ECPointEncoder)privECKey).setPointFormat("UNCOMPRESSED"); |
| ((ECPointEncoder)pubECKey).setPointFormat("UNCOMPRESSED"); |
| } |
| certGen.setSignatureAlgorithm("ECDSAwithSHA1"); |
| certGen.setSerialNumber(BigInteger.valueOf(1)); |
| certGen.setIssuerDN(new X509Principal("CN=Software emul (EC Cert)")); |
| certGen.setNotBefore(new Date(System.currentTimeMillis() - 50000)); |
| certGen.setNotAfter(new Date(System.currentTimeMillis() + 50000000)); |
| certGen.setSubjectDN(new X509Principal("CN=Software emul (EC Cert)")); |
| certGen.setPublicKey((PublicKey)pubECKey); |
| |
| return certGen.generate((PrivateKey)privECKey); |
| } |
| |
| public static void main( |
| String[] args) |
| { |
| Security.addProvider(new BouncyCastleProvider()); |
| |
| runTest(new ECEncodingTest()); |
| } |
| } |