1package org.bouncycastle.operator; 2 3import java.util.HashMap; 4import java.util.Map; 5 6import org.bouncycastle.asn1.ASN1ObjectIdentifier; 7import org.bouncycastle.asn1.DERNull; 8// BEGIN android-removed 9// import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers; 10// END android-removed 11import org.bouncycastle.asn1.nist.NISTObjectIdentifiers; 12import org.bouncycastle.asn1.oiw.OIWObjectIdentifiers; 13import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers; 14import org.bouncycastle.asn1.pkcs.RSASSAPSSparams; 15import org.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers; 16import org.bouncycastle.asn1.x509.AlgorithmIdentifier; 17import org.bouncycastle.asn1.x9.X9ObjectIdentifiers; 18 19public class DefaultDigestAlgorithmIdentifierFinder 20 implements DigestAlgorithmIdentifierFinder 21{ 22 private static Map digestOids = new HashMap(); 23 private static Map digestNameToOids = new HashMap(); 24 25 static 26 { 27 // 28 // digests 29 // 30 // BEGIN android-removed 31 // digestOids.put(OIWObjectIdentifiers.md4WithRSAEncryption, PKCSObjectIdentifiers.md4); 32 // digestOids.put(OIWObjectIdentifiers.md4WithRSA, PKCSObjectIdentifiers.md4); 33 // END android-removed 34 digestOids.put(OIWObjectIdentifiers.sha1WithRSA, OIWObjectIdentifiers.idSHA1); 35 36 digestOids.put(PKCSObjectIdentifiers.sha224WithRSAEncryption, NISTObjectIdentifiers.id_sha224); 37 digestOids.put(PKCSObjectIdentifiers.sha256WithRSAEncryption, NISTObjectIdentifiers.id_sha256); 38 digestOids.put(PKCSObjectIdentifiers.sha384WithRSAEncryption, NISTObjectIdentifiers.id_sha384); 39 digestOids.put(PKCSObjectIdentifiers.sha512WithRSAEncryption, NISTObjectIdentifiers.id_sha512); 40 // BEGIN android-removed 41 // digestOids.put(PKCSObjectIdentifiers.md2WithRSAEncryption, PKCSObjectIdentifiers.md2); 42 // digestOids.put(PKCSObjectIdentifiers.md4WithRSAEncryption, PKCSObjectIdentifiers.md4); 43 // END android-removed 44 digestOids.put(PKCSObjectIdentifiers.md5WithRSAEncryption, PKCSObjectIdentifiers.md5); 45 digestOids.put(PKCSObjectIdentifiers.sha1WithRSAEncryption, OIWObjectIdentifiers.idSHA1); 46 47 digestOids.put(X9ObjectIdentifiers.ecdsa_with_SHA1, OIWObjectIdentifiers.idSHA1); 48 digestOids.put(X9ObjectIdentifiers.ecdsa_with_SHA224, NISTObjectIdentifiers.id_sha224); 49 digestOids.put(X9ObjectIdentifiers.ecdsa_with_SHA256, NISTObjectIdentifiers.id_sha256); 50 digestOids.put(X9ObjectIdentifiers.ecdsa_with_SHA384, NISTObjectIdentifiers.id_sha384); 51 digestOids.put(X9ObjectIdentifiers.ecdsa_with_SHA512, NISTObjectIdentifiers.id_sha512); 52 digestOids.put(X9ObjectIdentifiers.id_dsa_with_sha1, OIWObjectIdentifiers.idSHA1); 53 54 digestOids.put(NISTObjectIdentifiers.dsa_with_sha224, NISTObjectIdentifiers.id_sha224); 55 digestOids.put(NISTObjectIdentifiers.dsa_with_sha256, NISTObjectIdentifiers.id_sha256); 56 digestOids.put(NISTObjectIdentifiers.dsa_with_sha384, NISTObjectIdentifiers.id_sha384); 57 digestOids.put(NISTObjectIdentifiers.dsa_with_sha512, NISTObjectIdentifiers.id_sha512); 58 59 // BEGIN android-removed 60 // digestOids.put(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd128, TeleTrusTObjectIdentifiers.ripemd128); 61 // digestOids.put(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd160, TeleTrusTObjectIdentifiers.ripemd160); 62 // digestOids.put(TeleTrusTObjectIdentifiers.rsaSignatureWithripemd256, TeleTrusTObjectIdentifiers.ripemd256); 63 // 64 // digestOids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_94, CryptoProObjectIdentifiers.gostR3411); 65 // digestOids.put(CryptoProObjectIdentifiers.gostR3411_94_with_gostR3410_2001, CryptoProObjectIdentifiers.gostR3411); 66 // END android-removed 67 68 digestNameToOids.put("SHA-1", OIWObjectIdentifiers.idSHA1); 69 digestNameToOids.put("SHA-224", NISTObjectIdentifiers.id_sha224); 70 digestNameToOids.put("SHA-256", NISTObjectIdentifiers.id_sha256); 71 digestNameToOids.put("SHA-384", NISTObjectIdentifiers.id_sha384); 72 digestNameToOids.put("SHA-512", NISTObjectIdentifiers.id_sha512); 73 74 // BEGIN android-removed 75 // digestNameToOids.put("GOST3411", CryptoProObjectIdentifiers.gostR3411); 76 // 77 // digestNameToOids.put("MD2", PKCSObjectIdentifiers.md2); 78 // digestNameToOids.put("MD4", PKCSObjectIdentifiers.md4); 79 // END android-removed 80 digestNameToOids.put("MD5", PKCSObjectIdentifiers.md5); 81 82 // BEGIN android-removed 83 // digestNameToOids.put("RIPEMD128", TeleTrusTObjectIdentifiers.ripemd128); 84 // digestNameToOids.put("RIPEMD160", TeleTrusTObjectIdentifiers.ripemd160); 85 // digestNameToOids.put("RIPEMD256", TeleTrusTObjectIdentifiers.ripemd256); 86 // END android-removed 87 } 88 89 public AlgorithmIdentifier find(AlgorithmIdentifier sigAlgId) 90 { 91 AlgorithmIdentifier digAlgId; 92 93 if (sigAlgId.getAlgorithm().equals(PKCSObjectIdentifiers.id_RSASSA_PSS)) 94 { 95 digAlgId = RSASSAPSSparams.getInstance(sigAlgId.getParameters()).getHashAlgorithm(); 96 } 97 else 98 { 99 digAlgId = new AlgorithmIdentifier((ASN1ObjectIdentifier)digestOids.get(sigAlgId.getAlgorithm()), DERNull.INSTANCE); 100 } 101 102 return digAlgId; 103 } 104 105 public AlgorithmIdentifier find(String digAlgName) 106 { 107 return new AlgorithmIdentifier((ASN1ObjectIdentifier)digestNameToOids.get(digAlgName), DERNull.INSTANCE); 108 } 109}