package org.spongycastle.jcajce.provider.symmetric.util;
import java.io.IOException;
import java.security.AlgorithmParametersSpi;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.InvalidParameterSpecException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEParameterSpec;
import javax.crypto.spec.RC2ParameterSpec;
import org.spongycastle.asn1.ASN1Encoding;
import org.spongycastle.asn1.ASN1Primitive;
import org.spongycastle.asn1.pkcs.PBKDF2Params;
import org.spongycastle.asn1.pkcs.PKCS12PBEParams;
import org.spongycastle.asn1.pkcs.RC2CBCParameter;
import org.spongycastle.util.Arrays;
public abstract class BaseAlgorithmParameters
extends 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);
}
protected abstract AlgorithmParameterSpec localEngineGetParameterSpec(Class paramSpec)
throws InvalidParameterSpecException;
public static class RC2AlgorithmParameters
extends BaseAlgorithmParameters
{
private static final short[] table = {
0xbd, 0x56, 0xea, 0xf2, 0xa2, 0xf1, 0xac, 0x2a, 0xb0, 0x93, 0xd1, 0x9c, 0x1b, 0x33, 0xfd, 0xd0,
0x30, 0x04, 0xb6, 0xdc, 0x7d, 0xdf, 0x32, 0x4b, 0xf7, 0xcb, 0x45, 0x9b, 0x31, 0xbb, 0x21, 0x5a,
0x41, 0x9f, 0xe1, 0xd9, 0x4a, 0x4d, 0x9e, 0xda, 0xa0, 0x68, 0x2c, 0xc3, 0x27, 0x5f, 0x80, 0x36,
0x3e, 0xee, 0xfb, 0x95, 0x1a, 0xfe, 0xce, 0xa8, 0x34, 0xa9, 0x13, 0xf0, 0xa6, 0x3f, 0xd8, 0x0c,
0x78, 0x24, 0xaf, 0x23, 0x52, 0xc1, 0x67, 0x17, 0xf5, 0x66, 0x90, 0xe7, 0xe8, 0x07, 0xb8, 0x60,
0x48, 0xe6, 0x1e, 0x53, 0xf3, 0x92, 0xa4, 0x72, 0x8c, 0x08, 0x15, 0x6e, 0x86, 0x00, 0x84, 0xfa,
0xf4, 0x7f, 0x8a, 0x42, 0x19, 0xf6, 0xdb, 0xcd, 0x14, 0x8d, 0x50, 0x12, 0xba, 0x3c, 0x06, 0x4e,
0xec, 0xb3, 0x35, 0x11, 0xa1, 0x88, 0x8e, 0x2b, 0x94, 0x99, 0xb7, 0x71, 0x74, 0xd3, 0xe4, 0xbf,
0x3a, 0xde, 0x96, 0x0e, 0xbc, 0x0a, 0xed, 0x77, 0xfc, 0x37, 0x6b, 0x03, 0x79, 0x89, 0x62, 0xc6,
0xd7, 0xc0, 0xd2, 0x7c, 0x6a, 0x8b, 0x22, 0xa3, 0x5b, 0x05, 0x5d, 0x02, 0x75, 0xd5, 0x61, 0xe3,
0x18, 0x8f, 0x55, 0x51, 0xad, 0x1f, 0x0b, 0x5e, 0x85, 0xe5, 0xc2, 0x57, 0x63, 0xca, 0x3d, 0x6c,
0xb4, 0xc5, 0xcc, 0x70, 0xb2, 0x91, 0x59, 0x0d, 0x47, 0x20, 0xc8, 0x4f, 0x58, 0xe0, 0x01, 0xe2,
0x16, 0x38, 0xc4, 0x6f, 0x3b, 0x0f, 0x65, 0x46, 0xbe, 0x7e, 0x2d, 0x7b, 0x82, 0xf9, 0x40, 0xb5,
0x1d, 0x73, 0xf8, 0xeb, 0x26, 0xc7, 0x87, 0x97, 0x25, 0x54, 0xb1, 0x28, 0xaa, 0x98, 0x9d, 0xa5,
0x64, 0x6d, 0x7a, 0xd4, 0x10, 0x81, 0x44, 0xef, 0x49, 0xd6, 0xae, 0x2e, 0xdd, 0x76, 0x5c, 0x2f,
0xa7, 0x1c, 0xc9, 0x09, 0x69, 0x9a, 0x83, 0xcf, 0x29, 0x39, 0xb9, 0xe9, 0x4c, 0xff, 0x43, 0xab
};
private static final short[] ekb = {
0x5d, 0xbe, 0x9b, 0x8b, 0x11, 0x99, 0x6e, 0x4d, 0x59, 0xf3, 0x85, 0xa6, 0x3f, 0xb7, 0x83, 0xc5,
0xe4, 0x73, 0x6b, 0x3a, 0x68, 0x5a, 0xc0, 0x47, 0xa0, 0x64, 0x34, 0x0c, 0xf1, 0xd0, 0x52, 0xa5,
0xb9, 0x1e, 0x96, 0x43, 0x41, 0xd8, 0xd4, 0x2c, 0xdb, 0xf8, 0x07, 0x77, 0x2a, 0xca, 0xeb, 0xef,
0x10, 0x1c, 0x16, 0x0d, 0x38, 0x72, 0x2f, 0x89, 0xc1, 0xf9, 0x80, 0xc4, 0x6d, 0xae, 0x30, 0x3d,
0xce, 0x20, 0x63, 0xfe, 0xe6, 0x1a, 0xc7, 0xb8, 0x50, 0xe8, 0x24, 0x17, 0xfc, 0x25, 0x6f, 0xbb,
0x6a, 0xa3, 0x44, 0x53, 0xd9, 0xa2, 0x01, 0xab, 0xbc, 0xb6, 0x1f, 0x98, 0xee, 0x9a, 0xa7, 0x2d,
0x4f, 0x9e, 0x8e, 0xac, 0xe0, 0xc6, 0x49, 0x46, 0x29, 0xf4, 0x94, 0x8a, 0xaf, 0xe1, 0x5b, 0xc3,
0xb3, 0x7b, 0x57, 0xd1, 0x7c, 0x9c, 0xed, 0x87, 0x40, 0x8c, 0xe2, 0xcb, 0x93, 0x14, 0xc9, 0x61,
0x2e, 0xe5, 0xcc, 0xf6, 0x5e, 0xa8, 0x5c, 0xd6, 0x75, 0x8d, 0x62, 0x95, 0x58, 0x69, 0x76, 0xa1,
0x4a, 0xb5, 0x55, 0x09, 0x78, 0x33, 0x82, 0xd7, 0xdd, 0x79, 0xf5, 0x1b, 0x0b, 0xde, 0x26, 0x21,
0x28, 0x74, 0x04, 0x97, 0x56, 0xdf, 0x3c, 0xf0, 0x37, 0x39, 0xdc, 0xff, 0x06, 0xa4, 0xea, 0x42,
0x08, 0xda, 0xb4, 0x71, 0xb0, 0xcf, 0x12, 0x7a, 0x4e, 0xfa, 0x6c, 0x1d, 0x84, 0x00, 0xc8, 0x7f,
0x91, 0x45, 0xaa, 0x2b, 0xc2, 0xb1, 0x8f, 0xd5, 0xba, 0xf2, 0xad, 0x19, 0xb2, 0x67, 0x36, 0xf7,
0x0f, 0x0a, 0x92, 0x7d, 0xe3, 0x9d, 0xe9, 0x90, 0x3e, 0x23, 0x27, 0x66, 0x13, 0xec, 0x81, 0x15,
0xbd, 0x22, 0xbf, 0x9f, 0x7e, 0xa9, 0x51, 0x4b, 0x4c, 0xfb, 0x02, 0xd3, 0x70, 0x86, 0x31, 0xe7,
0x3b, 0x05, 0x03, 0x54, 0x60, 0x48, 0x65, 0x18, 0xd2, 0xcd, 0x5f, 0x32, 0x88, 0x0e, 0x35, 0xfd
};
private byte[] iv;
private int parameterVersion = 58;
protected byte[] engineGetEncoded()
{
return Arrays.clone(iv);
}
protected byte[] engineGetEncoded(
String format)
throws IOException
{
if (this.isASN1FormatString(format))
{
if (parameterVersion == -1)
{
return new RC2CBCParameter(engineGetEncoded()).getEncoded();
}
else
{
return new RC2CBCParameter(parameterVersion, engineGetEncoded()).getEncoded();
}
}
if (format.equals("RAW"))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == RC2ParameterSpec.class)
{
if (parameterVersion != -1)
{
if (parameterVersion < 256)
{
return new RC2ParameterSpec(ekb[parameterVersion], iv);
}
else
{
return new RC2ParameterSpec(parameterVersion, iv);
}
}
}
if (paramSpec == IvParameterSpec.class)
{
return new IvParameterSpec(iv);
}
throw new InvalidParameterSpecException("unknown parameter spec passed to RC2 parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec instanceof IvParameterSpec)
{
this.iv = ((IvParameterSpec)paramSpec).getIV();
}
else if (paramSpec instanceof RC2ParameterSpec)
{
int effKeyBits = ((RC2ParameterSpec)paramSpec).getEffectiveKeyBits();
if (effKeyBits != -1)
{
if (effKeyBits < 256)
{
parameterVersion = table[effKeyBits];
}
else
{
parameterVersion = effKeyBits;
}
}
this.iv = ((RC2ParameterSpec)paramSpec).getIV();
}
else
{
throw new InvalidParameterSpecException("IvParameterSpec or RC2ParameterSpec required to initialise a RC2 parameters algorithm parameters object");
}
}
protected void engineInit(
byte[] params)
throws IOException
{
this.iv = Arrays.clone(params);
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (this.isASN1FormatString(format))
{
RC2CBCParameter p = RC2CBCParameter.getInstance(ASN1Primitive.fromByteArray(params));
if (p.getRC2ParameterVersion() != null)
{
parameterVersion = p.getRC2ParameterVersion().intValue();
}
iv = p.getIV();
return;
}
if (format.equals("RAW"))
{
engineInit(params);
return;
}
throw new IOException("Unknown parameters format in IV parameters object");
}
protected String engineToString()
{
return "RC2 Parameters";
}
}
public static class PBKDF2
extends BaseAlgorithmParameters
{
PBKDF2Params params;
protected byte[] engineGetEncoded()
{
try
{
return params.getEncoded(ASN1Encoding.DER);
}
catch (IOException e)
{
throw new RuntimeException("Oooops! " + e.toString());
}
}
protected byte[] engineGetEncoded(
String format)
{
if (this.isASN1FormatString(format))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == PBEParameterSpec.class)
{
return new PBEParameterSpec(params.getSalt(),
params.getIterationCount().intValue());
}
throw new InvalidParameterSpecException("unknown parameter spec passed to PKCS12 PBE parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof PBEParameterSpec))
{
throw new InvalidParameterSpecException("PBEParameterSpec required to initialise a PKCS12 PBE parameters algorithm parameters object");
}
PBEParameterSpec pbeSpec = (PBEParameterSpec)paramSpec;
this.params = new PBKDF2Params(pbeSpec.getSalt(),
pbeSpec.getIterationCount());
}
protected void engineInit(
byte[] params)
throws IOException
{
this.params = PBKDF2Params.getInstance(ASN1Primitive.fromByteArray(params));
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (this.isASN1FormatString(format))
{
engineInit(params);
return;
}
throw new IOException("Unknown parameters format in PWRIKEK parameters object");
}
protected String engineToString()
{
return "PBKDF2 Parameters";
}
}
public static class PKCS12PBE
extends BaseAlgorithmParameters
{
PKCS12PBEParams params;
protected byte[] engineGetEncoded()
{
try
{
return params.getEncoded(ASN1Encoding.DER);
}
catch (IOException e)
{
throw new RuntimeException("Oooops! " + e.toString());
}
}
protected byte[] engineGetEncoded(
String format)
{
if (this.isASN1FormatString(format))
{
return engineGetEncoded();
}
return null;
}
protected AlgorithmParameterSpec localEngineGetParameterSpec(
Class paramSpec)
throws InvalidParameterSpecException
{
if (paramSpec == PBEParameterSpec.class)
{
return new PBEParameterSpec(params.getIV(),
params.getIterations().intValue());
}
throw new InvalidParameterSpecException("unknown parameter spec passed to PKCS12 PBE parameters object.");
}
protected void engineInit(
AlgorithmParameterSpec paramSpec)
throws InvalidParameterSpecException
{
if (!(paramSpec instanceof PBEParameterSpec))
{
throw new InvalidParameterSpecException("PBEParameterSpec required to initialise a PKCS12 PBE parameters algorithm parameters object");
}
PBEParameterSpec pbeSpec = (PBEParameterSpec)paramSpec;
this.params = new PKCS12PBEParams(pbeSpec.getSalt(),
pbeSpec.getIterationCount());
}
protected void engineInit(
byte[] params)
throws IOException
{
this.params = PKCS12PBEParams.getInstance(ASN1Primitive.fromByteArray(params));
}
protected void engineInit(
byte[] params,
String format)
throws IOException
{
if (this.isASN1FormatString(format))
{
engineInit(params);
return;
}
throw new IOException("Unknown parameters format in PKCS12 PBE parameters object");
}
protected String engineToString()
{
return "PKCS12 PBE Parameters";
}
}
}