DigestUtilities
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.CryptoPro;
using Org.BouncyCastle.Asn1.GM;
using Org.BouncyCastle.Asn1.Misc;
using Org.BouncyCastle.Asn1.Nist;
using Org.BouncyCastle.Asn1.Oiw;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.Rosstandart;
using Org.BouncyCastle.Asn1.TeleTrust;
using Org.BouncyCastle.Asn1.UA;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Digests;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Collections;
using System;
using System.Collections.Generic;
namespace Org.BouncyCastle.Security
{
public static class DigestUtilities
{
private enum DigestAlgorithm
{
BLAKE2B_160,
BLAKE2B_256,
BLAKE2B_384,
BLAKE2B_512,
BLAKE2S_128,
BLAKE2S_160,
BLAKE2S_224,
BLAKE2S_256,
BLAKE3_256,
DSTU7564_256,
DSTU7564_384,
DSTU7564_512,
GOST3411,
GOST3411_2012_256,
GOST3411_2012_512,
KECCAK_224,
KECCAK_256,
KECCAK_288,
KECCAK_384,
KECCAK_512,
MD2,
MD4,
MD5,
NONE,
RIPEMD128,
RIPEMD160,
RIPEMD256,
RIPEMD320,
SHA_1,
SHA_224,
SHA_256,
SHA_384,
SHA_512,
SHA_512_224,
SHA_512_256,
SHA3_224,
SHA3_256,
SHA3_384,
SHA3_512,
SHAKE128_256,
SHAKE256_512,
SM3,
TIGER,
WHIRLPOOL
}
private static readonly Dictionary<string, string> AlgorithmMap;
private static readonly Dictionary<DerObjectIdentifier, string> AlgorithmOidMap;
private static readonly Dictionary<string, DerObjectIdentifier> Oids;
static DigestUtilities()
{
AlgorithmMap = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
AlgorithmOidMap = new Dictionary<DerObjectIdentifier, string>();
Oids = new Dictionary<string, DerObjectIdentifier>(StringComparer.OrdinalIgnoreCase);
Enums.GetArbitraryValue<DigestAlgorithm>().ToString();
AlgorithmOidMap[PkcsObjectIdentifiers.MD2] = "MD2";
AlgorithmOidMap[PkcsObjectIdentifiers.MD4] = "MD4";
AlgorithmOidMap[PkcsObjectIdentifiers.MD5] = "MD5";
AlgorithmMap["SHA1"] = "SHA-1";
AlgorithmOidMap[OiwObjectIdentifiers.IdSha1] = "SHA-1";
AlgorithmOidMap[PkcsObjectIdentifiers.IdHmacWithSha1] = "SHA-1";
AlgorithmOidMap[MiscObjectIdentifiers.HMAC_SHA1] = "SHA-1";
AlgorithmMap["SHA224"] = "SHA-224";
AlgorithmOidMap[NistObjectIdentifiers.IdSha224] = "SHA-224";
AlgorithmOidMap[PkcsObjectIdentifiers.IdHmacWithSha224] = "SHA-224";
AlgorithmMap["SHA256"] = "SHA-256";
AlgorithmOidMap[NistObjectIdentifiers.IdSha256] = "SHA-256";
AlgorithmOidMap[PkcsObjectIdentifiers.IdHmacWithSha256] = "SHA-256";
AlgorithmMap["SHA384"] = "SHA-384";
AlgorithmOidMap[NistObjectIdentifiers.IdSha384] = "SHA-384";
AlgorithmOidMap[PkcsObjectIdentifiers.IdHmacWithSha384] = "SHA-384";
AlgorithmMap["SHA512"] = "SHA-512";
AlgorithmOidMap[NistObjectIdentifiers.IdSha512] = "SHA-512";
AlgorithmOidMap[PkcsObjectIdentifiers.IdHmacWithSha512] = "SHA-512";
AlgorithmMap["SHA512/224"] = "SHA-512/224";
AlgorithmMap["SHA512-224"] = "SHA-512/224";
AlgorithmMap["SHA512(224)"] = "SHA-512/224";
AlgorithmMap["SHA-512(224)"] = "SHA-512/224";
AlgorithmOidMap[NistObjectIdentifiers.IdSha512_224] = "SHA-512/224";
AlgorithmOidMap[PkcsObjectIdentifiers.IdHmacWithSha512_224] = "SHA-512/224";
AlgorithmMap["SHA512/256"] = "SHA-512/256";
AlgorithmMap["SHA512-256"] = "SHA-512/256";
AlgorithmMap["SHA512(256)"] = "SHA-512/256";
AlgorithmMap["SHA-512(256)"] = "SHA-512/256";
AlgorithmOidMap[NistObjectIdentifiers.IdSha512_256] = "SHA-512/256";
AlgorithmOidMap[PkcsObjectIdentifiers.IdHmacWithSha512_256] = "SHA-512/256";
AlgorithmMap["RIPEMD-128"] = "RIPEMD128";
AlgorithmOidMap[TeleTrusTObjectIdentifiers.RipeMD128] = "RIPEMD128";
AlgorithmMap["RIPEMD-160"] = "RIPEMD160";
AlgorithmOidMap[TeleTrusTObjectIdentifiers.RipeMD160] = "RIPEMD160";
AlgorithmMap["RIPEMD-256"] = "RIPEMD256";
AlgorithmOidMap[TeleTrusTObjectIdentifiers.RipeMD256] = "RIPEMD256";
AlgorithmMap["RIPEMD-320"] = "RIPEMD320";
AlgorithmOidMap[CryptoProObjectIdentifiers.GostR3411] = "GOST3411";
AlgorithmMap["KECCAK224"] = "KECCAK-224";
AlgorithmMap["KECCAK256"] = "KECCAK-256";
AlgorithmMap["KECCAK288"] = "KECCAK-288";
AlgorithmMap["KECCAK384"] = "KECCAK-384";
AlgorithmMap["KECCAK512"] = "KECCAK-512";
AlgorithmOidMap[NistObjectIdentifiers.IdSha3_224] = "SHA3-224";
AlgorithmOidMap[NistObjectIdentifiers.IdHMacWithSha3_224] = "SHA3-224";
AlgorithmOidMap[NistObjectIdentifiers.IdSha3_256] = "SHA3-256";
AlgorithmOidMap[NistObjectIdentifiers.IdHMacWithSha3_256] = "SHA3-256";
AlgorithmOidMap[NistObjectIdentifiers.IdSha3_384] = "SHA3-384";
AlgorithmOidMap[NistObjectIdentifiers.IdHMacWithSha3_384] = "SHA3-384";
AlgorithmOidMap[NistObjectIdentifiers.IdSha3_512] = "SHA3-512";
AlgorithmOidMap[NistObjectIdentifiers.IdHMacWithSha3_512] = "SHA3-512";
AlgorithmMap["SHAKE128"] = "SHAKE128-256";
AlgorithmOidMap[NistObjectIdentifiers.IdShake128] = "SHAKE128-256";
AlgorithmMap["SHAKE256"] = "SHAKE256-512";
AlgorithmOidMap[NistObjectIdentifiers.IdShake256] = "SHAKE256-512";
AlgorithmOidMap[GMObjectIdentifiers.sm3] = "SM3";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2b160] = "BLAKE2B-160";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2b256] = "BLAKE2B-256";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2b384] = "BLAKE2B-384";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2b512] = "BLAKE2B-512";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2s128] = "BLAKE2S-128";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2s160] = "BLAKE2S-160";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2s224] = "BLAKE2S-224";
AlgorithmOidMap[MiscObjectIdentifiers.id_blake2s256] = "BLAKE2S-256";
AlgorithmOidMap[MiscObjectIdentifiers.blake3_256] = "BLAKE3-256";
AlgorithmOidMap[RosstandartObjectIdentifiers.id_tc26_gost_3411_12_256] = "GOST3411-2012-256";
AlgorithmOidMap[RosstandartObjectIdentifiers.id_tc26_gost_3411_12_512] = "GOST3411-2012-512";
AlgorithmOidMap[UAObjectIdentifiers.dstu7564digest_256] = "DSTU7564-256";
AlgorithmOidMap[UAObjectIdentifiers.dstu7564digest_384] = "DSTU7564-384";
AlgorithmOidMap[UAObjectIdentifiers.dstu7564digest_512] = "DSTU7564-512";
Oids["MD2"] = PkcsObjectIdentifiers.MD2;
Oids["MD4"] = PkcsObjectIdentifiers.MD4;
Oids["MD5"] = PkcsObjectIdentifiers.MD5;
Oids["SHA-1"] = OiwObjectIdentifiers.IdSha1;
Oids["SHA-224"] = NistObjectIdentifiers.IdSha224;
Oids["SHA-256"] = NistObjectIdentifiers.IdSha256;
Oids["SHA-384"] = NistObjectIdentifiers.IdSha384;
Oids["SHA-512"] = NistObjectIdentifiers.IdSha512;
Oids["SHA-512/224"] = NistObjectIdentifiers.IdSha512_224;
Oids["SHA-512/256"] = NistObjectIdentifiers.IdSha512_256;
Oids["SHA3-224"] = NistObjectIdentifiers.IdSha3_224;
Oids["SHA3-256"] = NistObjectIdentifiers.IdSha3_256;
Oids["SHA3-384"] = NistObjectIdentifiers.IdSha3_384;
Oids["SHA3-512"] = NistObjectIdentifiers.IdSha3_512;
Oids["SHAKE128-256"] = NistObjectIdentifiers.IdShake128;
Oids["SHAKE256-512"] = NistObjectIdentifiers.IdShake256;
Oids["RIPEMD128"] = TeleTrusTObjectIdentifiers.RipeMD128;
Oids["RIPEMD160"] = TeleTrusTObjectIdentifiers.RipeMD160;
Oids["RIPEMD256"] = TeleTrusTObjectIdentifiers.RipeMD256;
Oids["GOST3411"] = CryptoProObjectIdentifiers.GostR3411;
Oids["SM3"] = GMObjectIdentifiers.sm3;
Oids["BLAKE2B-160"] = MiscObjectIdentifiers.id_blake2b160;
Oids["BLAKE2B-256"] = MiscObjectIdentifiers.id_blake2b256;
Oids["BLAKE2B-384"] = MiscObjectIdentifiers.id_blake2b384;
Oids["BLAKE2B-512"] = MiscObjectIdentifiers.id_blake2b512;
Oids["BLAKE2S-128"] = MiscObjectIdentifiers.id_blake2s128;
Oids["BLAKE2S-160"] = MiscObjectIdentifiers.id_blake2s160;
Oids["BLAKE2S-224"] = MiscObjectIdentifiers.id_blake2s224;
Oids["BLAKE2S-256"] = MiscObjectIdentifiers.id_blake2s256;
Oids["BLAKE3-256"] = MiscObjectIdentifiers.blake3_256;
Oids["GOST3411-2012-256"] = RosstandartObjectIdentifiers.id_tc26_gost_3411_12_256;
Oids["GOST3411-2012-512"] = RosstandartObjectIdentifiers.id_tc26_gost_3411_12_512;
Oids["DSTU7564-256"] = UAObjectIdentifiers.dstu7564digest_256;
Oids["DSTU7564-384"] = UAObjectIdentifiers.dstu7564digest_384;
Oids["DSTU7564-512"] = UAObjectIdentifiers.dstu7564digest_512;
}
public static byte[] CalculateDigest(DerObjectIdentifier id, byte[] input)
{
return CalculateDigest(id.Id, input);
}
public static byte[] CalculateDigest(string algorithm, byte[] input)
{
return DoFinal(GetDigest(algorithm), input);
}
public static byte[] CalculateDigest(string algorithm, byte[] buf, int off, int len)
{
return DoFinal(GetDigest(algorithm), buf, off, len);
}
public static byte[] DoFinal(IDigest digest)
{
byte[] array = new byte[digest.GetDigestSize()];
digest.DoFinal(array, 0);
return array;
}
public static byte[] DoFinal(IDigest digest, byte[] input)
{
digest.BlockUpdate(input, 0, input.Length);
return DoFinal(digest);
}
public static byte[] DoFinal(IDigest digest, byte[] buf, int off, int len)
{
digest.BlockUpdate(buf, off, len);
return DoFinal(digest);
}
public static string GetAlgorithmName(DerObjectIdentifier oid)
{
return CollectionUtilities.GetValueOrNull(AlgorithmOidMap, oid);
}
public static IDigest GetDigest(DerObjectIdentifier id)
{
if (id == null)
throw new ArgumentNullException("id");
if (AlgorithmOidMap.TryGetValue(id, out string value)) {
IDigest digestForMechanism = GetDigestForMechanism(value);
if (digestForMechanism != null)
return digestForMechanism;
}
throw new SecurityUtilityException("Digest OID not recognised.");
}
public static IDigest GetDigest(string algorithm)
{
if (algorithm == null)
throw new ArgumentNullException("algorithm");
IDigest digestForMechanism = GetDigestForMechanism(GetMechanism(algorithm) ?? algorithm.ToUpperInvariant());
if (digestForMechanism != null)
return digestForMechanism;
throw new SecurityUtilityException("Digest " + algorithm + " not recognised.");
}
private static IDigest GetDigestForMechanism(string mechanism)
{
if (Enums.TryGetEnumValue(mechanism, out DigestAlgorithm result)) {
switch (result) {
case DigestAlgorithm.BLAKE2B_160:
return new Blake2bDigest(160);
case DigestAlgorithm.BLAKE2B_256:
return new Blake2bDigest(256);
case DigestAlgorithm.BLAKE2B_384:
return new Blake2bDigest(384);
case DigestAlgorithm.BLAKE2B_512:
return new Blake2bDigest(512);
case DigestAlgorithm.BLAKE2S_128:
return new Blake2sDigest(128);
case DigestAlgorithm.BLAKE2S_160:
return new Blake2sDigest(160);
case DigestAlgorithm.BLAKE2S_224:
return new Blake2sDigest(224);
case DigestAlgorithm.BLAKE2S_256:
return new Blake2sDigest(256);
case DigestAlgorithm.BLAKE3_256:
return new Blake3Digest(256);
case DigestAlgorithm.DSTU7564_256:
return new Dstu7564Digest(256);
case DigestAlgorithm.DSTU7564_384:
return new Dstu7564Digest(384);
case DigestAlgorithm.DSTU7564_512:
return new Dstu7564Digest(512);
case DigestAlgorithm.GOST3411:
return new Gost3411Digest();
case DigestAlgorithm.GOST3411_2012_256:
return new Gost3411_2012_256Digest();
case DigestAlgorithm.GOST3411_2012_512:
return new Gost3411_2012_512Digest();
case DigestAlgorithm.KECCAK_224:
return new KeccakDigest(224);
case DigestAlgorithm.KECCAK_256:
return new KeccakDigest(256);
case DigestAlgorithm.KECCAK_288:
return new KeccakDigest(288);
case DigestAlgorithm.KECCAK_384:
return new KeccakDigest(384);
case DigestAlgorithm.KECCAK_512:
return new KeccakDigest(512);
case DigestAlgorithm.MD2:
return new MD2Digest();
case DigestAlgorithm.MD4:
return new MD4Digest();
case DigestAlgorithm.MD5:
return new MD5Digest();
case DigestAlgorithm.NONE:
return new NullDigest();
case DigestAlgorithm.RIPEMD128:
return new RipeMD128Digest();
case DigestAlgorithm.RIPEMD160:
return new RipeMD160Digest();
case DigestAlgorithm.RIPEMD256:
return new RipeMD256Digest();
case DigestAlgorithm.RIPEMD320:
return new RipeMD320Digest();
case DigestAlgorithm.SHA_1:
return new Sha1Digest();
case DigestAlgorithm.SHA_224:
return new Sha224Digest();
case DigestAlgorithm.SHA_256:
return new Sha256Digest();
case DigestAlgorithm.SHA_384:
return new Sha384Digest();
case DigestAlgorithm.SHA_512:
return new Sha512Digest();
case DigestAlgorithm.SHA_512_224:
return new Sha512tDigest(224);
case DigestAlgorithm.SHA_512_256:
return new Sha512tDigest(256);
case DigestAlgorithm.SHA3_224:
return new Sha3Digest(224);
case DigestAlgorithm.SHA3_256:
return new Sha3Digest(256);
case DigestAlgorithm.SHA3_384:
return new Sha3Digest(384);
case DigestAlgorithm.SHA3_512:
return new Sha3Digest(512);
case DigestAlgorithm.SHAKE128_256:
return new ShakeDigest(128);
case DigestAlgorithm.SHAKE256_512:
return new ShakeDigest(256);
case DigestAlgorithm.SM3:
return new SM3Digest();
case DigestAlgorithm.TIGER:
return new TigerDigest();
case DigestAlgorithm.WHIRLPOOL:
return new WhirlpoolDigest();
default:
throw new NotImplementedException();
}
}
return null;
}
private static string GetMechanism(string algorithm)
{
if (AlgorithmMap.TryGetValue(algorithm, out string value))
return value;
if (DerObjectIdentifier.TryFromID(algorithm, out DerObjectIdentifier oid) && AlgorithmOidMap.TryGetValue(oid, out string value2))
return value2;
return null;
}
public static DerObjectIdentifier GetObjectIdentifier(string mechanism)
{
if (mechanism == null)
throw new ArgumentNullException("mechanism");
mechanism = (GetMechanism(mechanism) ?? mechanism);
return CollectionUtilities.GetValueOrNull(Oids, mechanism);
}
}
}