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package org.bouncycastle.jcajce.util;
import java.util.HashMap;
import java.util.Map;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
// BEGIN android-removed
// import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
// import org.bouncycastle.asn1.gnu.GNUObjectIdentifiers;
// import org.bouncycastle.asn1.iso.ISOIECObjectIdentifiers;
// END android-removed
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
// BEGIN android-removed
// import org.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers;
// END android-removed
public class MessageDigestUtils
{
private static Map<ASN1ObjectIdentifier, String> digestOidMap = new HashMap<ASN1ObjectIdentifier, String>();
static
{
// BEGIN android-removed
// digestOidMap.put(PKCSObjectIdentifiers.md2, "MD2");
// digestOidMap.put(PKCSObjectIdentifiers.md4, "MD4");
// END android-removed
digestOidMap.put(PKCSObjectIdentifiers.md5, "MD5");
digestOidMap.put(OIWObjectIdentifiers.idSHA1, "SHA-1");
digestOidMap.put(NISTObjectIdentifiers.id_sha224, "SHA-224");
digestOidMap.put(NISTObjectIdentifiers.id_sha256, "SHA-256");
digestOidMap.put(NISTObjectIdentifiers.id_sha384, "SHA-384");
digestOidMap.put(NISTObjectIdentifiers.id_sha512, "SHA-512");
// BEGIN android-removed
// digestOidMap.put(TeleTrusTObjectIdentifiers.ripemd128, "RIPEMD-128");
// digestOidMap.put(TeleTrusTObjectIdentifiers.ripemd160, "RIPEMD-160");
// digestOidMap.put(TeleTrusTObjectIdentifiers.ripemd256, "RIPEMD-128");
// digestOidMap.put(ISOIECObjectIdentifiers.ripemd128, "RIPEMD-128");
// digestOidMap.put(ISOIECObjectIdentifiers.ripemd160, "RIPEMD-160");
// digestOidMap.put(CryptoProObjectIdentifiers.gostR3411, "GOST3411");
// digestOidMap.put(GNUObjectIdentifiers.Tiger_192, "Tiger");
// digestOidMap.put(ISOIECObjectIdentifiers.whirlpool, "Whirlpool");
// digestOidMap.put(NISTObjectIdentifiers.id_sha3_224, "SHA3-224");
// digestOidMap.put(NISTObjectIdentifiers.id_sha3_256, "SHA3-256");
// digestOidMap.put(NISTObjectIdentifiers.id_sha3_384, "SHA3-384");
// digestOidMap.put(NISTObjectIdentifiers.id_sha3_512, "SHA3-512");
// END android-removed
}
/**
* Attempt to find a standard JCA name for the digest represented by the passed in OID.
*
* @param digestAlgOID the OID of the digest algorithm of interest.
* @return a string representing the standard name - the OID as a string if none available.
*/
public static String getDigestName(ASN1ObjectIdentifier digestAlgOID)
{
String name = (String)digestOidMap.get(digestAlgOID); // for pre 1.5 JDK
if (name != null)
{
return name;
}
return digestAlgOID.getId();
}
}
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