public static PbeS2Parameters GetInstance(object obj)
{
if (obj == null)
{
return(null);
}
PbeS2Parameters existing = obj as PbeS2Parameters;
if (existing != null)
{
return(existing);
}
return(new PbeS2Parameters(Asn1Sequence.GetInstance(obj)));
}
public static PbeS2Parameters GetInstance(object obj)
{
if (obj == null)
{
return(null);
}
PbeS2Parameters pbeS2Parameters = obj as PbeS2Parameters;
if (pbeS2Parameters != null)
{
return(pbeS2Parameters);
}
return(new PbeS2Parameters(Asn1Sequence.GetInstance(obj)));
}
public static PbeS2Parameters GetInstance(object obj)
{
if (obj == null)
{
return(null);
}
PbeS2Parameters existing = obj as PbeS2Parameters;
if (existing != null)
{
return(existing);
}
// Disable warning since using GetInstance would result in an infinite loop
#pragma warning disable 618
return(new PbeS2Parameters(Asn1Sequence.GetInstance(obj)));
#pragma warning restore 618
}
public override void PerformTest()
{
char[] password = "******".ToCharArray();
PbeParametersGenerator generator = new Pkcs5S2ParametersGenerator();
EncryptedPrivateKeyInfo info = null;
try
{
info = EncryptedPrivateKeyInfo.GetInstance(Asn1Object.FromByteArray(sample));
}
catch (System.Exception e)
{
Fail("failed construction - exception " + e.ToString(), e);
}
PbeS2Parameters alg = new PbeS2Parameters((Asn1Sequence) info.EncryptionAlgorithm.Parameters);
Pbkdf2Params func = Pbkdf2Params.GetInstance(alg.KeyDerivationFunc.Parameters);
EncryptionScheme scheme = alg.EncryptionScheme;
if (func.KeyLength != null)
{
keySize = func.KeyLength.IntValue * 8;
}
int iterationCount = func.IterationCount.IntValue;
byte[] salt = func.GetSalt();
generator.Init(PbeParametersGenerator.Pkcs5PasswordToBytes(password), salt, iterationCount);
DerObjectIdentifier algOid = scheme.ObjectID;
byte[] iv;
if (algOid.Equals(PkcsObjectIdentifiers.RC2Cbc))
{
RC2CbcParameter rc2Params = RC2CbcParameter.GetInstance(scheme.Asn1Object);
iv = rc2Params.GetIV();
}
else
{
iv = ((Asn1OctetString) scheme.Asn1Object).GetOctets();
}
ICipherParameters param = new ParametersWithIV(
generator.GenerateDerivedParameters(algOid.Id, keySize), iv);
cipher.Init(false, param);
byte[] data = info.GetEncryptedData();
byte[] outBytes = new byte[cipher.GetOutputSize(data.Length)];
int len = cipher.ProcessBytes(data, 0, data.Length, outBytes, 0);
try
{
len += cipher.DoFinal(outBytes, len);
}
catch (Exception e)
{
Fail("failed DoFinal - exception " + e.ToString());
}
if (result.Length != len)
{
Fail("failed length");
}
for (int i = 0; i != len; i++)
{
if (outBytes[i] != result[i])
{
Fail("failed comparison");
}
}
}
