Initial Commit
This commit is contained in:
318
iTechSharp/srcbc/security/ParameterUtilities.cs
Normal file
318
iTechSharp/srcbc/security/ParameterUtilities.cs
Normal file
@@ -0,0 +1,318 @@
|
||||
using System;
|
||||
using System.Collections;
|
||||
using System.Globalization;
|
||||
|
||||
using Org.BouncyCastle.Asn1;
|
||||
using Org.BouncyCastle.Asn1.CryptoPro;
|
||||
using Org.BouncyCastle.Asn1.Kisa;
|
||||
using Org.BouncyCastle.Asn1.Misc;
|
||||
using Org.BouncyCastle.Asn1.Nist;
|
||||
using Org.BouncyCastle.Asn1.Ntt;
|
||||
using Org.BouncyCastle.Asn1.Oiw;
|
||||
using Org.BouncyCastle.Asn1.Pkcs;
|
||||
using Org.BouncyCastle.Crypto;
|
||||
using Org.BouncyCastle.Crypto.Parameters;
|
||||
|
||||
namespace Org.BouncyCastle.Security
|
||||
{
|
||||
public sealed class ParameterUtilities
|
||||
{
|
||||
private ParameterUtilities()
|
||||
{
|
||||
}
|
||||
|
||||
private static readonly Hashtable algorithms = new Hashtable();
|
||||
|
||||
static ParameterUtilities()
|
||||
{
|
||||
AddAlgorithm("AES",
|
||||
"AESWRAP");
|
||||
AddAlgorithm("AES128",
|
||||
"2.16.840.1.101.3.4.2",
|
||||
NistObjectIdentifiers.IdAes128Cbc,
|
||||
NistObjectIdentifiers.IdAes128Cfb,
|
||||
NistObjectIdentifiers.IdAes128Ecb,
|
||||
NistObjectIdentifiers.IdAes128Ofb,
|
||||
NistObjectIdentifiers.IdAes128Wrap);
|
||||
AddAlgorithm("AES192",
|
||||
"2.16.840.1.101.3.4.22",
|
||||
NistObjectIdentifiers.IdAes192Cbc,
|
||||
NistObjectIdentifiers.IdAes192Cfb,
|
||||
NistObjectIdentifiers.IdAes192Ecb,
|
||||
NistObjectIdentifiers.IdAes192Ofb,
|
||||
NistObjectIdentifiers.IdAes192Wrap);
|
||||
AddAlgorithm("AES256",
|
||||
"2.16.840.1.101.3.4.42",
|
||||
NistObjectIdentifiers.IdAes256Cbc,
|
||||
NistObjectIdentifiers.IdAes256Cfb,
|
||||
NistObjectIdentifiers.IdAes256Ecb,
|
||||
NistObjectIdentifiers.IdAes256Ofb,
|
||||
NistObjectIdentifiers.IdAes256Wrap);
|
||||
AddAlgorithm("BLOWFISH");
|
||||
AddAlgorithm("CAMELLIA",
|
||||
"CAMELLIAWRAP");
|
||||
AddAlgorithm("CAMELLIA128",
|
||||
NttObjectIdentifiers.IdCamellia128Cbc,
|
||||
NttObjectIdentifiers.IdCamellia128Wrap);
|
||||
AddAlgorithm("CAMELLIA192",
|
||||
NttObjectIdentifiers.IdCamellia192Cbc,
|
||||
NttObjectIdentifiers.IdCamellia192Wrap);
|
||||
AddAlgorithm("CAMELLIA256",
|
||||
NttObjectIdentifiers.IdCamellia256Cbc,
|
||||
NttObjectIdentifiers.IdCamellia256Wrap);
|
||||
AddAlgorithm("CAST5",
|
||||
"1.2.840.113533.7.66.10");
|
||||
AddAlgorithm("CAST6");
|
||||
AddAlgorithm("DES",
|
||||
OiwObjectIdentifiers.DesCbc);
|
||||
AddAlgorithm("DESEDE",
|
||||
"DESEDEWRAP",
|
||||
PkcsObjectIdentifiers.IdAlgCms3DesWrap);
|
||||
AddAlgorithm("DESEDE3",
|
||||
PkcsObjectIdentifiers.DesEde3Cbc);
|
||||
AddAlgorithm("GOST28147",
|
||||
"GOST",
|
||||
"GOST-28147",
|
||||
CryptoProObjectIdentifiers.GostR28147Cbc);
|
||||
AddAlgorithm("HC128");
|
||||
AddAlgorithm("HC256");
|
||||
AddAlgorithm("IDEA",
|
||||
"1.3.6.1.4.1.188.7.1.1.2");
|
||||
AddAlgorithm("NOEKEON");
|
||||
AddAlgorithm("RC2",
|
||||
PkcsObjectIdentifiers.RC2Cbc,
|
||||
PkcsObjectIdentifiers.IdAlgCmsRC2Wrap);
|
||||
AddAlgorithm("RC4",
|
||||
"ARC4",
|
||||
"1.2.840.113549.3.4");
|
||||
AddAlgorithm("RC5",
|
||||
"RC5-32");
|
||||
AddAlgorithm("RC5-64");
|
||||
AddAlgorithm("RC6");
|
||||
AddAlgorithm("RIJNDAEL");
|
||||
AddAlgorithm("SALSA20");
|
||||
AddAlgorithm("SEED",
|
||||
KisaObjectIdentifiers.IdNpkiAppCmsSeedWrap,
|
||||
KisaObjectIdentifiers.IdSeedCbc);
|
||||
AddAlgorithm("SERPENT");
|
||||
AddAlgorithm("SKIPJACK");
|
||||
AddAlgorithm("TEA");
|
||||
AddAlgorithm("TWOFISH");
|
||||
AddAlgorithm("VMPC");
|
||||
AddAlgorithm("VMPC-KSA3");
|
||||
AddAlgorithm("XTEA");
|
||||
}
|
||||
|
||||
private static void AddAlgorithm(
|
||||
string canonicalName,
|
||||
params object[] aliases)
|
||||
{
|
||||
algorithms[canonicalName] = canonicalName;
|
||||
|
||||
foreach (object alias in aliases)
|
||||
{
|
||||
algorithms[alias.ToString()] = canonicalName;
|
||||
}
|
||||
}
|
||||
|
||||
public static string GetCanonicalAlgorithmName(
|
||||
string algorithm)
|
||||
{
|
||||
return (string) algorithms[algorithm.ToUpper(CultureInfo.InvariantCulture)];
|
||||
}
|
||||
|
||||
public static KeyParameter CreateKeyParameter(
|
||||
DerObjectIdentifier algOid,
|
||||
byte[] keyBytes)
|
||||
{
|
||||
return CreateKeyParameter(algOid.Id, keyBytes, 0, keyBytes.Length);
|
||||
}
|
||||
|
||||
public static KeyParameter CreateKeyParameter(
|
||||
string algorithm,
|
||||
byte[] keyBytes)
|
||||
{
|
||||
return CreateKeyParameter(algorithm, keyBytes, 0, keyBytes.Length);
|
||||
}
|
||||
|
||||
public static KeyParameter CreateKeyParameter(
|
||||
DerObjectIdentifier algOid,
|
||||
byte[] keyBytes,
|
||||
int offset,
|
||||
int length)
|
||||
{
|
||||
return CreateKeyParameter(algOid.Id, keyBytes, offset, length);
|
||||
}
|
||||
|
||||
public static KeyParameter CreateKeyParameter(
|
||||
string algorithm,
|
||||
byte[] keyBytes,
|
||||
int offset,
|
||||
int length)
|
||||
{
|
||||
if (algorithm == null)
|
||||
throw new ArgumentNullException("algorithm");
|
||||
|
||||
string canonical = GetCanonicalAlgorithmName(algorithm);
|
||||
|
||||
if (canonical == null)
|
||||
throw new SecurityUtilityException("Algorithm " + algorithm + " not recognised.");
|
||||
|
||||
switch (canonical)
|
||||
{
|
||||
case "DES":
|
||||
return new DesParameters(keyBytes, offset, length);
|
||||
case "DESEDE":
|
||||
case "DESEDE3":
|
||||
return new DesEdeParameters(keyBytes, offset, length);
|
||||
case "RC2":
|
||||
return new RC2Parameters(keyBytes, offset, length);
|
||||
default:
|
||||
return new KeyParameter(keyBytes, offset, length);
|
||||
}
|
||||
}
|
||||
|
||||
public static ICipherParameters GetCipherParameters(
|
||||
DerObjectIdentifier algOid,
|
||||
ICipherParameters key,
|
||||
Asn1Object asn1Params)
|
||||
{
|
||||
return GetCipherParameters(algOid.Id, key, asn1Params);
|
||||
}
|
||||
|
||||
public static ICipherParameters GetCipherParameters(
|
||||
string algorithm,
|
||||
ICipherParameters key,
|
||||
Asn1Object asn1Params)
|
||||
{
|
||||
if (algorithm == null)
|
||||
throw new ArgumentNullException("algorithm");
|
||||
|
||||
string canonical = GetCanonicalAlgorithmName(algorithm);
|
||||
|
||||
if (canonical == null)
|
||||
throw new SecurityUtilityException("Algorithm " + algorithm + " not recognised.");
|
||||
|
||||
byte[] iv = null;
|
||||
|
||||
try
|
||||
{
|
||||
switch (canonical)
|
||||
{
|
||||
case "AES":
|
||||
case "AES128":
|
||||
case "AES192":
|
||||
case "AES256":
|
||||
case "BLOWFISH":
|
||||
case "CAMELLIA":
|
||||
case "CAMELLIA128":
|
||||
case "CAMELLIA192":
|
||||
case "CAMELLIA256":
|
||||
case "DES":
|
||||
case "DESEDE":
|
||||
case "DESEDE3":
|
||||
case "NOEKEON":
|
||||
case "RIJNDAEL":
|
||||
case "SEED":
|
||||
case "SKIPJACK":
|
||||
case "TWOFISH":
|
||||
iv = ((Asn1OctetString) asn1Params).GetOctets();
|
||||
break;
|
||||
case "RC2":
|
||||
iv = RC2CbcParameter.GetInstance(asn1Params).GetIV();
|
||||
break;
|
||||
case "IDEA":
|
||||
iv = IdeaCbcPar.GetInstance(asn1Params).GetIV();
|
||||
break;
|
||||
case "CAST5":
|
||||
iv = Cast5CbcParameters.GetInstance(asn1Params).GetIV();
|
||||
break;
|
||||
}
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
throw new ArgumentException("Could not process ASN.1 parameters", e);
|
||||
}
|
||||
|
||||
if (iv != null)
|
||||
{
|
||||
return new ParametersWithIV(key, iv);
|
||||
}
|
||||
|
||||
throw new SecurityUtilityException("Algorithm " + algorithm + " not recognised.");
|
||||
}
|
||||
|
||||
public static Asn1Encodable GenerateParameters(
|
||||
DerObjectIdentifier algID,
|
||||
SecureRandom random)
|
||||
{
|
||||
return GenerateParameters(algID.Id, random);
|
||||
}
|
||||
|
||||
public static Asn1Encodable GenerateParameters(
|
||||
string algorithm,
|
||||
SecureRandom random)
|
||||
{
|
||||
if (algorithm == null)
|
||||
throw new ArgumentNullException("algorithm");
|
||||
|
||||
string canonical = GetCanonicalAlgorithmName(algorithm);
|
||||
|
||||
if (canonical == null)
|
||||
throw new SecurityUtilityException("Algorithm " + algorithm + " not recognised.");
|
||||
|
||||
switch (canonical)
|
||||
{
|
||||
// TODO These algorithms support an IV (see GetCipherParameters)
|
||||
// but JCE doesn't seem to provide an AlgorithmParametersGenerator for them
|
||||
// case "BLOWFISH":
|
||||
// case "RIJNDAEL":
|
||||
// case "SKIPJACK":
|
||||
// case "TWOFISH":
|
||||
|
||||
case "AES":
|
||||
case "AES128":
|
||||
case "AES192":
|
||||
case "AES256":
|
||||
return CreateIVOctetString(random, 16);
|
||||
case "CAMELLIA":
|
||||
case "CAMELLIA128":
|
||||
case "CAMELLIA192":
|
||||
case "CAMELLIA256":
|
||||
return CreateIVOctetString(random, 16);
|
||||
case "CAST5":
|
||||
return new Cast5CbcParameters(CreateIV(random, 8), 128);
|
||||
case "DES":
|
||||
case "DESEDE":
|
||||
case "DESEDE3":
|
||||
return CreateIVOctetString(random, 8);
|
||||
case "IDEA":
|
||||
return new IdeaCbcPar(CreateIV(random, 8));
|
||||
case "NOEKEON":
|
||||
return CreateIVOctetString(random, 16);
|
||||
case "RC2":
|
||||
return new RC2CbcParameter(CreateIV(random, 8));
|
||||
case "SEED":
|
||||
return CreateIVOctetString(random, 16);
|
||||
}
|
||||
|
||||
throw new SecurityUtilityException("Algorithm " + algorithm + " not recognised.");
|
||||
}
|
||||
|
||||
private static Asn1OctetString CreateIVOctetString(
|
||||
SecureRandom random,
|
||||
int ivLength)
|
||||
{
|
||||
return new DerOctetString(CreateIV(random, ivLength));
|
||||
}
|
||||
|
||||
private static byte[] CreateIV(
|
||||
SecureRandom random,
|
||||
int ivLength)
|
||||
{
|
||||
byte[] iv = new byte[ivLength];
|
||||
random.NextBytes(iv);
|
||||
return iv;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user