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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
package org.bouncycastle.cms;
import java.util.HashMap;
import java.util.Map;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.bsi.BSIObjectIdentifiers;
import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import org.bouncycastle.asn1.eac.EACObjectIdentifiers;
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.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.X509ObjectIdentifiers;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
public class DefaultCMSSignatureAlgorithmNameGenerator
implements CMSSignatureAlgorithmNameGenerator
{
private final Map encryptionAlgs = new HashMap();
private final Map digestAlgs = new HashMap();
private void addEntries(ASN1ObjectIdentifier alias, String digest, String encryption)
{
digestAlgs.put(alias, digest);
encryptionAlgs.put(alias, encryption);
}
public DefaultCMSSignatureAlgorithmNameGenerator()
{
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(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd128, "RIPEMD128", "RSA");
addEntries(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd160, "RIPEMD160", "RSA");
addEntries(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd256, "RIPEMD256", "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");
addEntries(EACObjectIdentifiers.id_TA_ECDSA_SHA_1, "SHA1", "ECDSA");
addEntries(EACObjectIdentifiers.id_TA_ECDSA_SHA_224, "SHA224", "ECDSA");
addEntries(EACObjectIdentifiers.id_TA_ECDSA_SHA_256, "SHA256", "ECDSA");
addEntries(EACObjectIdentifiers.id_TA_ECDSA_SHA_384, "SHA384", "ECDSA");
addEntries(EACObjectIdentifiers.id_TA_ECDSA_SHA_512, "SHA512", "ECDSA");
addEntries(EACObjectIdentifiers.id_TA_RSA_v1_5_SHA_1, "SHA1", "RSA");
addEntries(EACObjectIdentifiers.id_TA_RSA_v1_5_SHA_256, "SHA256", "RSA");
addEntries(EACObjectIdentifiers.id_TA_RSA_PSS_SHA_1, "SHA1", "RSAandMGF1");
addEntries(EACObjectIdentifiers.id_TA_RSA_PSS_SHA_256, "SHA256", "RSAandMGF1");
addEntries(BSIObjectIdentifiers.ecdsa_plain_SHA1, "SHA1", "PLAIN-ECDSA");
addEntries(BSIObjectIdentifiers.ecdsa_plain_SHA224, "SHA224", "PLAIN-ECDSA");
addEntries(BSIObjectIdentifiers.ecdsa_plain_SHA256, "SHA256", "PLAIN-ECDSA");
addEntries(BSIObjectIdentifiers.ecdsa_plain_SHA384, "SHA384", "PLAIN-ECDSA");
addEntries(BSIObjectIdentifiers.ecdsa_plain_SHA512, "SHA512", "PLAIN-ECDSA");
addEntries(BSIObjectIdentifiers.ecdsa_plain_RIPEMD160, "RIPEMD160", "PLAIN-ECDSA");
encryptionAlgs.put(X9ObjectIdentifiers.id_dsa, "DSA");
encryptionAlgs.put(PKCSObjectIdentifiers.rsaEncryption, "RSA");
encryptionAlgs.put(TeleTrusTObjectIdentifiers.teleTrusTRSAsignatureAlgorithm, "RSA");
encryptionAlgs.put(X509ObjectIdentifiers.id_ea_rsa, "RSA");
encryptionAlgs.put(PKCSObjectIdentifiers.id_RSASSA_PSS, "RSAandMGF1");
encryptionAlgs.put(CryptoProObjectIdentifiers.gostR3410_94, "GOST3410");
encryptionAlgs.put(CryptoProObjectIdentifiers.gostR3410_2001, "ECGOST3410");
encryptionAlgs.put(new ASN1ObjectIdentifier("1.3.6.1.4.1.5849.1.6.2"), "ECGOST3410");
encryptionAlgs.put(new ASN1ObjectIdentifier("1.3.6.1.4.1.5849.1.1.5"), "GOST3410");
encryptionAlgs.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001, "ECGOST3410");
encryptionAlgs.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94, "GOST3410");
digestAlgs.put(PKCSObjectIdentifiers.md2, "MD2");
digestAlgs.put(PKCSObjectIdentifiers.md4, "MD4");
digestAlgs.put(PKCSObjectIdentifiers.md5, "MD5");
digestAlgs.put(OIWObjectIdentifiers.idSHA1, "SHA1");
digestAlgs.put(NISTObjectIdentifiers.id_sha224, "SHA224");
digestAlgs.put(NISTObjectIdentifiers.id_sha256, "SHA256");
digestAlgs.put(NISTObjectIdentifiers.id_sha384, "SHA384");
digestAlgs.put(NISTObjectIdentifiers.id_sha512, "SHA512");
digestAlgs.put(TeleTrusTObjectIdentifiers.ripemd128, "RIPEMD128");
digestAlgs.put(TeleTrusTObjectIdentifiers.ripemd160, "RIPEMD160");
digestAlgs.put(TeleTrusTObjectIdentifiers.ripemd256, "RIPEMD256");
digestAlgs.put(CryptoProObjectIdentifiers.gostR3411, "GOST3411");
digestAlgs.put(new ASN1ObjectIdentifier("1.3.6.1.4.1.5849.1.2.1"), "GOST3411");
}
/**
* Return the digest algorithm using one of the standard JCA string
* representations rather than the algorithm identifier (if possible).
*/
private String getDigestAlgName(
ASN1ObjectIdentifier digestAlgOID)
{
String algName = (String)digestAlgs.get(digestAlgOID);
if (algName != null)
{
return algName;
}
return digestAlgOID.getId();
}
/**
* Return the digest encryption algorithm using one of the standard
* JCA string representations rather the the algorithm identifier (if
* possible).
*/
private String getEncryptionAlgName(
ASN1ObjectIdentifier encryptionAlgOID)
{
String algName = (String)encryptionAlgs.get(encryptionAlgOID);
if (algName != null)
{
return algName;
}
return encryptionAlgOID.getId();
}
/**
* Set the mapping for the encryption algorithm used in association with a SignedData generation
* or interpretation.
*
* @param oid object identifier to map.
* @param algorithmName algorithm name to use.
*/
protected void setSigningEncryptionAlgorithmMapping(ASN1ObjectIdentifier oid, String algorithmName)
{
encryptionAlgs.put(oid, algorithmName);
}
/**
* Set the mapping for the digest algorithm to use in conjunction with a SignedData generation
* or interpretation.
*
* @param oid object identifier to map.
* @param algorithmName algorithm name to use.
*/
protected void setSigningDigestAlgorithmMapping(ASN1ObjectIdentifier oid, String algorithmName)
{
digestAlgs.put(oid, algorithmName);
}
public String getSignatureName(AlgorithmIdentifier digestAlg, AlgorithmIdentifier encryptionAlg)
{
String digestName = getDigestAlgName(encryptionAlg.getAlgorithm());
if (!digestName.equals(encryptionAlg.getAlgorithm().getId()))
{
return digestName + "with" + getEncryptionAlgName(encryptionAlg.getAlgorithm());
}
return getDigestAlgName(digestAlg.getAlgorithm()) + "with" + getEncryptionAlgName(encryptionAlg.getAlgorithm());
}
}
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