diff options
Diffstat (limited to 'prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ies')
2 files changed, 0 insertions, 501 deletions
diff --git a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi.java b/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi.java deleted file mode 100644 index 61f1e373..00000000 --- a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi.java +++ /dev/null @@ -1,138 +0,0 @@ -package org.bouncycastle.jcajce.provider.asymmetric.ies; - -import java.io.IOException; -import java.security.spec.AlgorithmParameterSpec; -import java.security.spec.InvalidParameterSpecException; - -import org.bouncycastle.asn1.ASN1EncodableVector; -import org.bouncycastle.asn1.ASN1Encoding; -import org.bouncycastle.asn1.ASN1Integer; -import org.bouncycastle.asn1.ASN1OctetString; -import org.bouncycastle.asn1.ASN1Primitive; -import org.bouncycastle.asn1.ASN1Sequence; -import org.bouncycastle.asn1.DEROctetString; -import org.bouncycastle.asn1.DERSequence; -import org.bouncycastle.jce.spec.IESParameterSpec; - -public class AlgorithmParametersSpi - extends java.security.AlgorithmParametersSpi -{ - protected boolean isASN1FormatString(String format) - { - return format == null || format.equals("ASN.1"); - } - - protected AlgorithmParameterSpec engineGetParameterSpec( - Class paramSpec) - throws InvalidParameterSpecException - { - if (paramSpec == null) - { - throw new NullPointerException("argument to getParameterSpec must not be null"); - } - - return localEngineGetParameterSpec(paramSpec); - } - - IESParameterSpec currentSpec; - - /** - * in the absence of a standard way of doing it this will do for - * now... - */ - protected byte[] engineGetEncoded() - { - try - { - ASN1EncodableVector v = new ASN1EncodableVector(); - - v.add(new DEROctetString(currentSpec.getDerivationV())); - v.add(new DEROctetString(currentSpec.getEncodingV())); - v.add(new ASN1Integer(currentSpec.getMacKeySize())); - - return new DERSequence(v).getEncoded(ASN1Encoding.DER); - } - catch (IOException e) - { - throw new RuntimeException("Error encoding IESParameters"); - } - } - - protected byte[] engineGetEncoded( - String format) - { - if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509")) - { - return engineGetEncoded(); - } - - return null; - } - - protected AlgorithmParameterSpec localEngineGetParameterSpec( - Class paramSpec) - throws InvalidParameterSpecException - { - if (paramSpec == IESParameterSpec.class) - { - return currentSpec; - } - - throw new InvalidParameterSpecException("unknown parameter spec passed to ElGamal parameters object."); - } - - protected void engineInit( - AlgorithmParameterSpec paramSpec) - throws InvalidParameterSpecException - { - if (!(paramSpec instanceof IESParameterSpec)) - { - throw new InvalidParameterSpecException("IESParameterSpec required to initialise a IES algorithm parameters object"); - } - - this.currentSpec = (IESParameterSpec)paramSpec; - } - - protected void engineInit( - byte[] params) - throws IOException - { - try - { - ASN1Sequence s = (ASN1Sequence)ASN1Primitive.fromByteArray(params); - - this.currentSpec = new IESParameterSpec( - ((ASN1OctetString)s.getObjectAt(0)).getOctets(), - ((ASN1OctetString)s.getObjectAt(0)).getOctets(), - ((ASN1Integer)s.getObjectAt(0)).getValue().intValue()); - } - catch (ClassCastException e) - { - throw new IOException("Not a valid IES Parameter encoding."); - } - catch (ArrayIndexOutOfBoundsException e) - { - throw new IOException("Not a valid IES Parameter encoding."); - } - } - - protected void engineInit( - byte[] params, - String format) - throws IOException - { - if (isASN1FormatString(format) || format.equalsIgnoreCase("X.509")) - { - engineInit(params); - } - else - { - throw new IOException("Unknown parameter format " + format); - } - } - - protected String engineToString() - { - return "IES Parameters"; - } -} diff --git a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ies/CipherSpi.java b/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ies/CipherSpi.java deleted file mode 100644 index 8cfaf2a4..00000000 --- a/prov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ies/CipherSpi.java +++ /dev/null @@ -1,363 +0,0 @@ -package org.bouncycastle.jcajce.provider.asymmetric.ies; - -import java.io.ByteArrayOutputStream; -import java.security.AlgorithmParameters; -import java.security.InvalidAlgorithmParameterException; -import java.security.InvalidKeyException; -import java.security.Key; -import java.security.SecureRandom; -import java.security.spec.AlgorithmParameterSpec; - -import javax.crypto.BadPaddingException; -import javax.crypto.Cipher; -import javax.crypto.IllegalBlockSizeException; -import javax.crypto.NoSuchPaddingException; -import javax.crypto.interfaces.DHPrivateKey; - -import org.bouncycastle.crypto.CipherParameters; -import org.bouncycastle.crypto.InvalidCipherTextException; -import org.bouncycastle.crypto.agreement.DHBasicAgreement; -import org.bouncycastle.crypto.digests.SHA1Digest; -import org.bouncycastle.crypto.engines.IESEngine; -import org.bouncycastle.crypto.generators.KDF2BytesGenerator; -import org.bouncycastle.crypto.macs.HMac; -import org.bouncycastle.crypto.params.IESParameters; -import org.bouncycastle.jce.provider.BouncyCastleProvider; -import org.bouncycastle.jcajce.provider.asymmetric.util.DHUtil; -import org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil; -import org.bouncycastle.jce.interfaces.ECPrivateKey; -import org.bouncycastle.jce.interfaces.ECPublicKey; -import org.bouncycastle.jce.interfaces.IESKey; -import org.bouncycastle.jce.spec.IESParameterSpec; - -public class CipherSpi - extends javax.crypto.CipherSpi -{ - private IESEngine cipher; - private int state = -1; - private ByteArrayOutputStream buffer = new ByteArrayOutputStream(); - private AlgorithmParameters engineParam = null; - private IESParameterSpec engineParams = null; - - // - // specs we can handle. - // - private Class[] availableSpecs = - { - IESParameterSpec.class - }; - - public CipherSpi( - IESEngine engine) - { - cipher = engine; - } - - protected int engineGetBlockSize() - { - return 0; - } - - protected byte[] engineGetIV() - { - return null; - } - - protected int engineGetKeySize( - Key key) - { - if (!(key instanceof IESKey)) - { - throw new IllegalArgumentException("must be passed IE key"); - } - - IESKey ieKey = (IESKey)key; - - if (ieKey.getPrivate() instanceof DHPrivateKey) - { - DHPrivateKey k = (DHPrivateKey)ieKey.getPrivate(); - - return k.getX().bitLength(); - } - else if (ieKey.getPrivate() instanceof ECPrivateKey) - { - ECPrivateKey k = (ECPrivateKey)ieKey.getPrivate(); - - return k.getD().bitLength(); - } - - throw new IllegalArgumentException("not an IE key!"); - } - - protected int engineGetOutputSize( - int inputLen) - { - if (state == Cipher.ENCRYPT_MODE || state == Cipher.WRAP_MODE) - { - return buffer.size() + inputLen + 20; /* SHA1 MAC size */ - } - else if (state == Cipher.DECRYPT_MODE || state == Cipher.UNWRAP_MODE) - { - return buffer.size() + inputLen - 20; - } - else - { - throw new IllegalStateException("cipher not initialised"); - } - } - - protected AlgorithmParameters engineGetParameters() - { - if (engineParam == null) - { - if (engineParams != null) - { - String name = "IES"; - - try - { - engineParam = AlgorithmParameters.getInstance(name, BouncyCastleProvider.PROVIDER_NAME); - engineParam.init(engineParams); - } - catch (Exception e) - { - throw new RuntimeException(e.toString()); - } - } - } - - return engineParam; - } - - protected void engineSetMode( - String mode) - { - throw new IllegalArgumentException("can't support mode " + mode); - } - - protected void engineSetPadding( - String padding) - throws NoSuchPaddingException - { - throw new NoSuchPaddingException(padding + " unavailable with RSA."); - } - - protected void engineInit( - int opmode, - Key key, - AlgorithmParameterSpec params, - SecureRandom random) - throws InvalidKeyException, InvalidAlgorithmParameterException - { - if (!(key instanceof IESKey)) - { - throw new InvalidKeyException("must be passed IES key"); - } - - if (params == null && (opmode == Cipher.ENCRYPT_MODE || opmode == Cipher.WRAP_MODE)) - { - // - // if nothing is specified we set up for a 128 bit mac, with - // 128 bit derivation vectors. - // - byte[] d = new byte[16]; - byte[] e = new byte[16]; - - if (random == null) - { - random = new SecureRandom(); - } - - random.nextBytes(d); - random.nextBytes(e); - - params = new IESParameterSpec(d, e, 128); - } - else if (!(params instanceof IESParameterSpec)) - { - throw new InvalidAlgorithmParameterException("must be passed IES parameters"); - } - - IESKey ieKey = (IESKey)key; - - CipherParameters pubKey; - CipherParameters privKey; - - if (ieKey.getPublic() instanceof ECPublicKey) - { - pubKey = ECUtil.generatePublicKeyParameter(ieKey.getPublic()); - privKey = ECUtil.generatePrivateKeyParameter(ieKey.getPrivate()); - } - else - { - pubKey = DHUtil.generatePublicKeyParameter(ieKey.getPublic()); - privKey = DHUtil.generatePrivateKeyParameter(ieKey.getPrivate()); - } - - this.engineParams = (IESParameterSpec)params; - - IESParameters p = new IESParameters(engineParams.getDerivationV(), engineParams.getEncodingV(), engineParams.getMacKeySize()); - - this.state = opmode; - - buffer.reset(); - - switch (opmode) - { - case Cipher.ENCRYPT_MODE: - case Cipher.WRAP_MODE: - cipher.init(true, privKey, pubKey, p); - break; - case Cipher.DECRYPT_MODE: - case Cipher.UNWRAP_MODE: - cipher.init(false, privKey, pubKey, p); - break; - default: - System.out.println("eeek!"); - } - } - - protected void engineInit( - int opmode, - Key key, - AlgorithmParameters params, - SecureRandom random) - throws InvalidKeyException, InvalidAlgorithmParameterException - { - AlgorithmParameterSpec paramSpec = null; - - if (params != null) - { - for (int i = 0; i != availableSpecs.length; i++) - { - try - { - paramSpec = params.getParameterSpec(availableSpecs[i]); - break; - } - catch (Exception e) - { - continue; - } - } - - if (paramSpec == null) - { - throw new InvalidAlgorithmParameterException("can't handle parameter " + params.toString()); - } - } - - engineParam = params; - engineInit(opmode, key, paramSpec, random); - } - - protected void engineInit( - int opmode, - Key key, - SecureRandom random) - throws InvalidKeyException - { - if (opmode == Cipher.ENCRYPT_MODE || opmode == Cipher.WRAP_MODE) - { - try - { - engineInit(opmode, key, (AlgorithmParameterSpec)null, random); - return; - } - catch (InvalidAlgorithmParameterException e) - { - // fall through... - } - } - - throw new IllegalArgumentException("can't handle null parameter spec in IES"); - } - - protected byte[] engineUpdate( - byte[] input, - int inputOffset, - int inputLen) - { - buffer.write(input, inputOffset, inputLen); - return null; - } - - protected int engineUpdate( - byte[] input, - int inputOffset, - int inputLen, - byte[] output, - int outputOffset) - { - buffer.write(input, inputOffset, inputLen); - return 0; - } - - protected byte[] engineDoFinal( - byte[] input, - int inputOffset, - int inputLen) - throws IllegalBlockSizeException, BadPaddingException - { - if (inputLen != 0) - { - buffer.write(input, inputOffset, inputLen); - } - - try - { - byte[] buf = buffer.toByteArray(); - - buffer.reset(); - - return cipher.processBlock(buf, 0, buf.length); - } - catch (InvalidCipherTextException e) - { - throw new BadPaddingException(e.getMessage()); - } - } - - protected int engineDoFinal( - byte[] input, - int inputOffset, - int inputLen, - byte[] output, - int outputOffset) - throws IllegalBlockSizeException, BadPaddingException - { - if (inputLen != 0) - { - buffer.write(input, inputOffset, inputLen); - } - - try - { - byte[] buf = buffer.toByteArray(); - - buffer.reset(); - - buf = cipher.processBlock(buf, 0, buf.length); - - System.arraycopy(buf, 0, output, outputOffset, buf.length); - - return buf.length; - } - catch (InvalidCipherTextException e) - { - throw new BadPaddingException(e.getMessage()); - } - } - - static public class IES - extends CipherSpi - { - public IES() - { - super(new IESEngine( - new DHBasicAgreement(), - new KDF2BytesGenerator(new SHA1Digest()), - new HMac(new SHA1Digest()))); - } - } -} |