package org.bouncycastle.cms;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1Set;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DEREncodable;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.DERObjectIdentifier;
import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers;
import org.bouncycastle.asn1.x509.X509ObjectIdentifiers;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
import org.bouncycastle.x509.NoSuchStoreException;
import org.bouncycastle.x509.X509CollectionStoreParameters;
import org.bouncycastle.x509.X509Store;
import org.bouncycastle.x509.X509V2AttributeCertificate;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Signature;
import java.security.Provider;
import java.security.cert.CRLException;
import java.security.cert.CertStore;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.CollectionCertStoreParameters;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
class CMSSignedHelper
{
static final CMSSignedHelper INSTANCE = new CMSSignedHelper();
private static final Map encryptionAlgs = new HashMap();
private static final Map digestAlgs = new HashMap();
private static final Map digestAliases = new HashMap();
private static void addEntries(DERObjectIdentifier alias, String digest, String encryption)
{
digestAlgs.put(alias.getId(), digest);
encryptionAlgs.put(alias.getId(), encryption);
}
static
{
addEntries(NISTObjectIdentifiers.dsa_with_sha224, "SHA224", "DSA");
addEntries(NISTObjectIdentifiers.dsa_with_sha256, "SHA256", "DSA");
addEntries(NISTObjectIdentifiers.dsa_with_sha384, "SHA384", "DSA");
addEntries(NISTObjectIdentifiers.dsa_with_sha512, "SHA512", "DSA");
addEntries(OIWObjectIdentifiers.dsaWithSHA1, "SHA1", "DSA");
addEntries(OIWObjectIdentifiers.md4WithRSA, "MD4", "RSA");
addEntries(OIWObjectIdentifiers.md4WithRSAEncryption, "MD4", "RSA");
addEntries(OIWObjectIdentifiers.md5WithRSA, "MD5", "RSA");
addEntries(OIWObjectIdentifiers.sha1WithRSA, "SHA1", "RSA");
addEntries(PKCSObjectIdentifiers.md2WithRSAEncryption, "MD2", "RSA");
addEntries(PKCSObjectIdentifiers.md4WithRSAEncryption, "MD4", "RSA");
addEntries(PKCSObjectIdentifiers.md5WithRSAEncryption, "MD5", "RSA");
addEntries(PKCSObjectIdentifiers.sha1WithRSAEncryption, "SHA1", "RSA");
addEntries(PKCSObjectIdentifiers.sha224WithRSAEncryption, "SHA224", "RSA");
addEntries(PKCSObjectIdentifiers.sha256WithRSAEncryption, "SHA256", "RSA");
addEntries(PKCSObjectIdentifiers.sha384WithRSAEncryption, "SHA384", "RSA");
addEntries(PKCSObjectIdentifiers.sha512WithRSAEncryption, "SHA512", "RSA");
addEntries(X9ObjectIdentifiers.ecdsa_with_SHA1, "SHA1", "ECDSA");
addEntries(X9ObjectIdentifiers.ecdsa_with_SHA224, "SHA224", "ECDSA");
addEntries(X9ObjectIdentifiers.ecdsa_with_SHA256, "SHA256", "ECDSA");
addEntries(X9ObjectIdentifiers.ecdsa_with_SHA384, "SHA384", "ECDSA");
addEntries(X9ObjectIdentifiers.ecdsa_with_SHA512, "SHA512", "ECDSA");
addEntries(X9ObjectIdentifiers.id_dsa_with_sha1, "SHA1", "DSA");
encryptionAlgs.put(X9ObjectIdentifiers.id_dsa.getId(), "DSA");
encryptionAlgs.put(PKCSObjectIdentifiers.rsaEncryption.getId(), "RSA");
encryptionAlgs.put(TeleTrusTObjectIdentifiers.teleTrusTRSAsignatureAlgorithm, "RSA");
encryptionAlgs.put(X509ObjectIdentifiers.id_ea_rsa.getId(), "RSA");
encryptionAlgs.put(CMSSignedDataGenerator.ENCRYPTION_RSA_PSS, "RSAandMGF1");
encryptionAlgs.put(CryptoProObjectIdentifiers.gostR3410_94.getId(), "GOST3410");
encryptionAlgs.put(CryptoProObjectIdentifiers.gostR3410_2001.getId(), "ECGOST3410");
encryptionAlgs.put("1.3.6.1.4.1.5849.1.6.2", "ECGOST3410");
encryptionAlgs.put("1.3.6.1.4.1.5849.1.1.5", "GOST3410");
digestAlgs.put(PKCSObjectIdentifiers.md2.getId(), "MD2");
digestAlgs.put(PKCSObjectIdentifiers.md4.getId(), "MD4");
digestAlgs.put(PKCSObjectIdentifiers.md5.getId(), "MD5");
digestAlgs.put(OIWObjectIdentifiers.idSHA1.getId(), "SHA1");
digestAlgs.put(NISTObjectIdentifiers.id_sha224.getId(), "SHA224");
digestAlgs.put(NISTObjectIdentifiers.id_sha256.getId(), "SHA256");
digestAlgs.put(NISTObjectIdentifiers.id_sha384.getId(), "SHA384");
digestAlgs.put(NISTObjectIdentifiers.id_sha512.getId(), "SHA512");
digestAlgs.put(TeleTrusTObjectIdentifiers.ripemd128.getId(), "RIPEMD128");
digestAlgs.put(TeleTrusTObjectIdentifiers.ripemd160.getId(), "RIPEMD160");
digestAlgs.put(TeleTrusTObjectIdentifiers.ripemd256.getId(), "RIPEMD256");
digestAlgs.put(CryptoProObjectIdentifiers.gostR3411.getId(), "GOST3411");
digestAlgs.put("1.3.6.1.4.1.5849.1.2.1", "GOST3411");
digestAliases.put("SHA1", new String[] { "SHA-1" });
digestAliases.put("SHA224", new String[] { "SHA-224" });
digestAliases.put("SHA256", new String[] { "SHA-256" });
digestAliases.put("SHA384", new String[] { "SHA-384" });
digestAliases.put("SHA512", new String[] { "SHA-512" });
}
/**
* Return the digest algorithm using one of the standard JCA string
* representations rather than the algorithm identifier (if possible).
*/
String getDigestAlgName(
String digestAlgOID)
{
String algName = (String)digestAlgs.get(digestAlgOID);
if (algName != null)
{
return algName;
}
return digestAlgOID;
}
String[] getDigestAliases(
String algName)
{
String[] aliases = (String[])digestAliases.get(algName);
if (aliases != null)
{
return aliases;
}
return new String[0];
}
/**
* Return the digest encryption algorithm using one of the standard
* JCA string representations rather the the algorithm identifier (if
* possible).
*/
String getEncryptionAlgName(
String encryptionAlgOID)
{
String algName = (String)encryptionAlgs.get(encryptionAlgOID);
if (algName != null)
{
return algName;
}
return encryptionAlgOID;
}
MessageDigest getDigestInstance(
String algorithm,
Provider provider)
throws NoSuchAlgorithmException
{
try
{
return createDigestInstance(algorithm, provider);
}
catch (NoSuchAlgorithmException e)
{
String[] aliases = getDigestAliases(algorithm);
for (int i = 0; i != aliases.length; i++)
{
try
{
return createDigestInstance(aliases[i], provider);
}
catch (NoSuchAlgorithmException ex)
{
// continue
}
}
if (provider != null)
{
return getDigestInstance(algorithm, null); // try rolling back
}
throw e;
}
}
private MessageDigest createDigestInstance(
String algorithm,
Provider provider)
throws NoSuchAlgorithmException
{
if (provider != null)
{
return MessageDigest.getInstance(algorithm, provider);
}
else
{
return MessageDigest.getInstance(algorithm);
}
}
Signature getSignatureInstance(
String algorithm,
Provider provider)
throws NoSuchAlgorithmException
{
if (provider != null)
{
return Signature.getInstance(algorithm, provider);
}
else
{
return Signature.getInstance(algorithm);
}
}
X509Store createAttributeStore(
String type,
Provider provider,
ASN1Set certSet)
throws NoSuchStoreException, CMSException
{
List certs = new ArrayList();
if (certSet != null)
{
Enumeration e = certSet.getObjects();
while (e.hasMoreElements())
{
try
{
DERObject obj = ((DEREncodable)e.nextElement()).getDERObject();
if (obj instanceof ASN1TaggedObject)
{
ASN1TaggedObject tagged = (ASN1TaggedObject)obj;
if (tagged.getTagNo() == 2)
{
certs.add(new X509V2AttributeCertificate(ASN1Sequence.getInstance(tagged, false).getEncoded()));
}
}
}
catch (IOException ex)
{
throw new CMSException(
"can't re-encode attribute certificate!", ex);
}
}
}
try
{
return X509Store.getInstance(
"AttributeCertificate/" +type, new X509CollectionStoreParameters(certs), provider);
}
catch (IllegalArgumentException e)
{
throw new CMSException("can't setup the X509Store", e);
}
}
X509Store createCertificateStore(
String type,
Provider provider,
ASN1Set certSet)
throws NoSuchStoreException, CMSException
{
List certs = new ArrayList();
if (certSet != null)
{
addCertsFromSet(certs, certSet, provider);
}
try
{
return X509Store.getInstance(
"Certificate/" +type, new X509CollectionStoreParameters(certs), provider);
}
catch (IllegalArgumentException e)
{
throw new CMSException("can't setup the X509Store", e);
}
}
X509Store createCRLsStore(
String type,
Provider provider,
ASN1Set crlSet)
throws NoSuchStoreException, CMSException
{
List crls = new ArrayList();
if (crlSet != null)
{
addCRLsFromSet(crls, crlSet, provider);
}
try
{
return X509Store.getInstance(
"CRL/" +type, new X509CollectionStoreParameters(crls), provider);
}
catch (IllegalArgumentException e)
{
throw new CMSException("can't setup the X509Store", e);
}
}
CertStore createCertStore(
String type,
Provider provider,
ASN1Set certSet,
ASN1Set crlSet)
throws CMSException, NoSuchAlgorithmException
{
List certsAndcrls = new ArrayList();
//
// load the certificates and revocation lists if we have any
//
if (certSet != null)
{
addCertsFromSet(certsAndcrls, certSet, provider);
}
if (crlSet != null)
{
addCRLsFromSet(certsAndcrls, crlSet, provider);
}
try
{
if (provider != null)
{
return CertStore.getInstance(type, new CollectionCertStoreParameters(certsAndcrls), provider);
}
else
{
return CertStore.getInstance(type, new CollectionCertStoreParameters(certsAndcrls));
}
}
catch (InvalidAlgorithmParameterException e)
{
throw new CMSException("can't setup the CertStore", e);
}
}
private void addCertsFromSet(List certs, ASN1Set certSet, Provider provider)
throws CMSException
{
CertificateFactory cf;
try
{
if (provider != null)
{
cf = CertificateFactory.getInstance("X.509", provider);
}
else
{
cf = CertificateFactory.getInstance("X.509");
}
}
catch (CertificateException ex)
{
throw new CMSException("can't get certificate factory.", ex);
}
Enumeration e = certSet.getObjects();
while (e.hasMoreElements())
{
try
{
DERObject obj = ((DEREncodable)e.nextElement()).getDERObject();
if (obj instanceof ASN1Sequence)
{
certs.add(cf.generateCertificate(
new ByteArrayInputStream(obj.getEncoded())));
}
}
catch (IOException ex)
{
throw new CMSException(
"can't re-encode certificate!", ex);
}
catch (CertificateException ex)
{
throw new CMSException(
"can't re-encode certificate!", ex);
}
}
}
private void addCRLsFromSet(List crls, ASN1Set certSet, Provider provider)
throws CMSException
{
CertificateFactory cf;
try
{
if (provider != null)
{
cf = CertificateFactory.getInstance("X.509", provider);
}
else
{
cf = CertificateFactory.getInstance("X.509");
}
}
catch (CertificateException ex)
{
throw new CMSException("can't get certificate factory.", ex);
}
Enumeration e = certSet.getObjects();
while (e.hasMoreElements())
{
try
{
DERObject obj = ((DEREncodable)e.nextElement()).getDERObject();
crls.add(cf.generateCRL(
new ByteArrayInputStream(obj.getEncoded())));
}
catch (IOException ex)
{
throw new CMSException("can't re-encode CRL!", ex);
}
catch (CRLException ex)
{
throw new CMSException("can't re-encode CRL!", ex);
}
}
}
private boolean anyCertHasTypeOther()
{
// not supported
return false;
}
private boolean anyCertHasV1Attribute()
{
// obsolete
return false;
}
private boolean anyCertHasV2Attribute()
{
// TODO
return false;
}
private boolean anyCrlHasTypeOther()
{
// not supported
return false;
}
}
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