package org.bouncycastle.jce;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.SignatureException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.X509EncodedKeySpec;
import java.util.Set;
import java.util.HashSet;
import java.util.Hashtable;
import javax.security.auth.x500.X500Principal;
import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1Set;
import org.bouncycastle.asn1.DERBitString;
import org.bouncycastle.asn1.DERObjectIdentifier;
import org.bouncycastle.asn1.DEROutputStream;
import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.CertificationRequest;
import org.bouncycastle.asn1.pkcs.CertificationRequestInfo;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.asn1.x509.X509Name;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.util.Strings;
/**
* A class for verifying and creating PKCS10 Certification requests.
* <pre>
* CertificationRequest ::= SEQUENCE {
* certificationRequestInfo CertificationRequestInfo,
* signatureAlgorithm AlgorithmIdentifier{{ SignatureAlgorithms }},
* signature BIT STRING
* }
*
* CertificationRequestInfo ::= SEQUENCE {
* version INTEGER { v1(0) } (v1,...),
* subject Name,
* subjectPKInfo SubjectPublicKeyInfo{{ PKInfoAlgorithms }},
* attributes [0] Attributes{{ CRIAttributes }}
* }
*
* Attributes { ATTRIBUTE:IOSet } ::= SET OF Attribute{{ IOSet }}
*
* Attribute { ATTRIBUTE:IOSet } ::= SEQUENCE {
* type ATTRIBUTE.&id({IOSet}),
* values SET SIZE(1..MAX) OF ATTRIBUTE.&Type({IOSet}{\@type})
* }
* </pre>
*/
public class PKCS10CertificationRequest
extends CertificationRequest
{
private static Hashtable algorithms = new Hashtable();
private static Hashtable keyAlgorithms = new Hashtable();
private static Hashtable oids = new Hashtable();
private static Set noParams = new HashSet();
static
{
// BEGIN android-removed
// Dropping MD2
// algorithms.put("MD2WITHRSAENCRYPTION", new DERObjectIdentifier("1.2.840.113549.1.1.2"));
// algorithms.put("MD2WITHRSA", new DERObjectIdentifier("1.2.840.113549.1.1.2"));
// END android-removed
algorithms.put("MD5WITHRSAENCRYPTION", new DERObjectIdentifier("1.2.840.113549.1.1.4"));
algorithms.put("MD5WITHRSA", new DERObjectIdentifier("1.2.840.113549.1.1.4"));
algorithms.put("RSAWITHMD5", new DERObjectIdentifier("1.2.840.113549.1.1.4"));
algorithms.put("SHA1WITHRSAENCRYPTION", new DERObjectIdentifier("1.2.840.113549.1.1.5"));
algorithms.put("SHA1WITHRSA", new DERObjectIdentifier("1.2.840.113549.1.1.5"));
algorithms.put("SHA224WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha224WithRSAEncryption);
algorithms.put("SHA224WITHRSA", PKCSObjectIdentifiers.sha224WithRSAEncryption);
algorithms.put("SHA256WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha256WithRSAEncryption);
algorithms.put("SHA256WITHRSA", PKCSObjectIdentifiers.sha256WithRSAEncryption);
algorithms.put("SHA384WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha384WithRSAEncryption);
algorithms.put("SHA384WITHRSA", PKCSObjectIdentifiers.sha384WithRSAEncryption);
algorithms.put("SHA512WITHRSAENCRYPTION", PKCSObjectIdentifiers.sha512WithRSAEncryption);
algorithms.put("SHA512WITHRSA", PKCSObjectIdentifiers.sha512WithRSAEncryption);
algorithms.put("RSAWITHSHA1", new DERObjectIdentifier("1.2.840.113549.1.1.5"));
algorithms.put("RIPEMD160WITHRSAENCRYPTION", new DERObjectIdentifier("1.3.36.3.3.1.2"));
algorithms.put("RIPEMD160WITHRSA", new DERObjectIdentifier("1.3.36.3.3.1.2"));
algorithms.put("SHA1WITHDSA", new DERObjectIdentifier("1.2.840.10040.4.3"));
algorithms.put("DSAWITHSHA1", new DERObjectIdentifier("1.2.840.10040.4.3"));
algorithms.put("SHA224WITHDSA", NISTObjectIdentifiers.dsa_with_sha224);
algorithms.put("SHA256WITHDSA", NISTObjectIdentifiers.dsa_with_sha256);
algorithms.put("SHA1WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA1);
algorithms.put("SHA224WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA224);
algorithms.put("SHA256WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA256);
algorithms.put("SHA384WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA384);
algorithms.put("SHA512WITHECDSA", X9ObjectIdentifiers.ecdsa_with_SHA512);
algorithms.put("ECDSAWITHSHA1", X9ObjectIdentifiers.ecdsa_with_SHA1);
algorithms.put("GOST3411WITHGOST3410", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94);
algorithms.put("GOST3410WITHGOST3411", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94);
algorithms.put("GOST3411WITHECGOST3410", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001);
//algorithms.put("ECGOST3410WITHGOST3411", CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001);
//
// reverse mappings
//
oids.put(new DERObjectIdentifier("1.2.840.113549.1.1.5"), "SHA1WITHRSA");
oids.put(PKCSObjectIdentifiers.sha224WithRSAEncryption, "SHA224WITHRSA");
oids.put(PKCSObjectIdentifiers.sha256WithRSAEncryption, "SHA256WITHRSA");
oids.put(PKCSObjectIdentifiers.sha384WithRSAEncryption, "SHA384WITHRSA");
oids.put(PKCSObjectIdentifiers.sha512WithRSAEncryption, "SHA512WITHRSA");
oids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94, "GOST3411WITHGOST3410");
//oids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001, "GOST3411WITHECGOST3410");
oids.put(new DERObjectIdentifier("1.2.840.113549.1.1.4"), "MD5WITHRSA");
// BEGIN android-removed
// Dropping MD2
// oids.put(new DERObjectIdentifier("1.2.840.113549.1.1.2"), "MD2WITHRSA");
// END android-removed
oids.put(new DERObjectIdentifier("1.2.840.10040.4.3"), "SHA1WITHDSA");
oids.put(X9ObjectIdentifiers.ecdsa_with_SHA1, "SHA1WITHECDSA");
oids.put(X9ObjectIdentifiers.ecdsa_with_SHA224, "SHA224WITHECDSA");
oids.put(X9ObjectIdentifiers.ecdsa_with_SHA256, "SHA256WITHECDSA");
oids.put(X9ObjectIdentifiers.ecdsa_with_SHA384, "SHA384WITHECDSA");
oids.put(X9ObjectIdentifiers.ecdsa_with_SHA512, "SHA512WITHECDSA");
oids.put(OIWObjectIdentifiers.sha1WithRSA, "SHA1WITHRSA");
oids.put(OIWObjectIdentifiers.dsaWithSHA1, "SHA1WITHDSA");
oids.put(NISTObjectIdentifiers.dsa_with_sha224, "SHA224WITHDSA");
oids.put(NISTObjectIdentifiers.dsa_with_sha256, "SHA256WITHDSA");
//
// key types
//
keyAlgorithms.put(PKCSObjectIdentifiers.rsaEncryption, "RSA");
keyAlgorithms.put(X9ObjectIdentifiers.id_dsa, "DSA");
//
// According to RFC 3279, the ASN.1 encoding SHALL (id-dsa-with-sha1) or MUST (ecdsa-with-SHA*) omit the parameters field.
// The parameters field SHALL be NULL for RSA based signature algorithms.
//
noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA1);
noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA224);
noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA256);
noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA384);
noParams.add(X9ObjectIdentifiers.ecdsa_with_SHA512);
noParams.add(X9ObjectIdentifiers.id_dsa_with_sha1);
noParams.add(NISTObjectIdentifiers.dsa_with_sha224);
noParams.add(NISTObjectIdentifiers.dsa_with_sha256);
}
private static ASN1Sequence toDERSequence(
byte[] bytes)
{
try
{
ByteArrayInputStream bIn = new ByteArrayInputStream(bytes);
ASN1InputStream dIn = new ASN1InputStream(bIn);
return (ASN1Sequence)dIn.readObject();
}
catch (Exception e)
{
throw new IllegalArgumentException("badly encoded request");
}
}
/**
* construct a PKCS10 certification request from a DER encoded
* byte stream.
*/
public PKCS10CertificationRequest(
byte[] bytes)
{
super(toDERSequence(bytes));
}
public PKCS10CertificationRequest(
ASN1Sequence sequence)
{
super(sequence);
}
/**
* create a PKCS10 certfication request using the BC provider.
*/
public PKCS10CertificationRequest(
String signatureAlgorithm,
X509Name subject,
PublicKey key,
ASN1Set attributes,
PrivateKey signingKey)
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException, SignatureException
{
this(signatureAlgorithm, subject, key, attributes, signingKey, "BC");
}
private static X509Name convertName(
X500Principal name)
{
try
{
return new X509Principal(name.getEncoded());
}
catch (IOException e)
{
throw new IllegalArgumentException("can't convert name");
}
}
/**
* create a PKCS10 certfication request using the BC provider.
*/
public PKCS10CertificationRequest(
String signatureAlgorithm,
X500Principal subject,
PublicKey key,
ASN1Set attributes,
PrivateKey signingKey)
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException, SignatureException
{
this(signatureAlgorithm, convertName(subject), key, attributes, signingKey, "BC");
}
/**
* create a PKCS10 certfication request using the named provider.
*/
public PKCS10CertificationRequest(
String signatureAlgorithm,
X500Principal subject,
PublicKey key,
ASN1Set attributes,
PrivateKey signingKey,
String provider)
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException, SignatureException
{
this(signatureAlgorithm, convertName(subject), key, attributes, signingKey, provider);
}
/**
* create a PKCS10 certfication request using the named provider.
*/
public PKCS10CertificationRequest(
String signatureAlgorithm,
X509Name subject,
PublicKey key,
ASN1Set attributes,
PrivateKey signingKey,
String provider)
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException, SignatureException
{
DERObjectIdentifier sigOID = (DERObjectIdentifier)algorithms.get(Strings.toUpperCase(signatureAlgorithm));
if (sigOID == null)
{
throw new IllegalArgumentException("Unknown signature type requested");
}
if (subject == null)
{
throw new IllegalArgumentException("subject must not be null");
}
if (key == null)
{
throw new IllegalArgumentException("public key must not be null");
}
if (noParams.contains(sigOID))
{
this.sigAlgId = new AlgorithmIdentifier(sigOID);
}
else
{
this.sigAlgId = new AlgorithmIdentifier(sigOID, null);
}
byte[] bytes = key.getEncoded();
ByteArrayInputStream bIn = new ByteArrayInputStream(bytes);
ASN1InputStream dIn = new ASN1InputStream(bIn);
try
{
this.reqInfo = new CertificationRequestInfo(subject, new SubjectPublicKeyInfo((ASN1Sequence)dIn.readObject()), attributes);
}
catch (IOException e)
{
throw new IllegalArgumentException("can't encode public key");
}
Signature sig = null;
try
{
sig = Signature.getInstance(sigAlgId.getObjectId().getId(), provider);
}
catch (NoSuchAlgorithmException e)
{
sig = Signature.getInstance(signatureAlgorithm, provider);
}
sig.initSign(signingKey);
try
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
dOut.writeObject(reqInfo);
sig.update(bOut.toByteArray());
}
catch (Exception e)
{
throw new SecurityException("exception encoding TBS cert request - " + e);
}
this.sigBits = new DERBitString(sig.sign());
}
/**
* return the public key associated with the certification request -
* the public key is created using the BC provider.
*/
public PublicKey getPublicKey()
throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException
{
return getPublicKey("BC");
}
public PublicKey getPublicKey(
String provider)
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException
{
SubjectPublicKeyInfo subjectPKInfo = reqInfo.getSubjectPublicKeyInfo();
X509EncodedKeySpec xspec = new X509EncodedKeySpec(new DERBitString(subjectPKInfo).getBytes());
AlgorithmIdentifier keyAlg = subjectPKInfo.getAlgorithmId();
try
{
try
{
return KeyFactory.getInstance(keyAlg.getObjectId().getId(), provider).generatePublic(xspec);
}
catch (NoSuchAlgorithmException e)
{
//
// try an alternate
//
if (keyAlgorithms.get(keyAlg.getObjectId()) != null)
{
String keyAlgorithm = (String)keyAlgorithms.get(keyAlg.getObjectId());
return KeyFactory.getInstance(keyAlgorithm, provider).generatePublic(xspec);
}
throw e;
}
}
catch (InvalidKeySpecException e)
{
throw new InvalidKeyException("error decoding public key");
}
}
/**
* verify the request using the BC provider.
*/
public boolean verify()
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException, SignatureException
{
return verify("BC");
}
public boolean verify(
String provider)
throws NoSuchAlgorithmException, NoSuchProviderException,
InvalidKeyException, SignatureException
{
Signature sig = null;
try
{
sig = Signature.getInstance(sigAlgId.getObjectId().getId(), provider);
}
catch (NoSuchAlgorithmException e)
{
//
// try an alternate
//
if (oids.get(sigAlgId.getObjectId()) != null)
{
String signatureAlgorithm = (String)oids.get(sigAlgId.getObjectId());
sig = Signature.getInstance(signatureAlgorithm, provider);
}
else
{
throw e;
}
}
sig.initVerify(this.getPublicKey(provider));
try
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
dOut.writeObject(reqInfo);
sig.update(bOut.toByteArray());
}
catch (Exception e)
{
throw new SecurityException("exception encoding TBS cert request - " + e);
}
return sig.verify(sigBits.getBytes());
}
/**
* return a DER encoded byte array representing this object
*/
public byte[] getEncoded()
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
try
{
dOut.writeObject(this);
}
catch (IOException e)
{
throw new RuntimeException(e.toString());
}
return bOut.toByteArray();
}
}