init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Cms/CmsPbeKey.cs

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+using System;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Cms;
+
+public abstract class CmsPbeKey : ICipherParameters
+{
+	internal readonly char[] password;
+
+	internal readonly byte[] salt;
+
+	internal readonly int iterationCount;
+
+	[Obsolete("Will be removed")]
+	public string Password => new string(password);
+
+	public byte[] Salt => Arrays.Clone(salt);
+
+	public int IterationCount => iterationCount;
+
+	public string Algorithm => "PKCS5S2";
+
+	public string Format => "RAW";
+
+	[Obsolete("Use version taking 'char[]' instead")]
+	public CmsPbeKey(string password, byte[] salt, int iterationCount)
+		: this(password.ToCharArray(), salt, iterationCount)
+	{
+	}
+
+	[Obsolete("Use version taking 'char[]' instead")]
+	public CmsPbeKey(string password, AlgorithmIdentifier keyDerivationAlgorithm)
+		: this(password.ToCharArray(), keyDerivationAlgorithm)
+	{
+	}
+
+	public CmsPbeKey(char[] password, byte[] salt, int iterationCount)
+	{
+		this.password = (char[])password.Clone();
+		this.salt = Arrays.Clone(salt);
+		this.iterationCount = iterationCount;
+	}
+
+	public CmsPbeKey(char[] password, AlgorithmIdentifier keyDerivationAlgorithm)
+	{
+		if (!keyDerivationAlgorithm.Algorithm.Equals(PkcsObjectIdentifiers.IdPbkdf2))
+		{
+			throw new ArgumentException("Unsupported key derivation algorithm: " + keyDerivationAlgorithm.Algorithm);
+		}
+		Pbkdf2Params instance = Pbkdf2Params.GetInstance(keyDerivationAlgorithm.Parameters.ToAsn1Object());
+		this.password = (char[])password.Clone();
+		salt = instance.GetSalt();
+		iterationCount = instance.IterationCount.IntValue;
+	}
+
+	~CmsPbeKey()
+	{
+		Array.Clear(password, 0, password.Length);
+	}
+
+	[Obsolete("Use 'Salt' property instead")]
+	public byte[] GetSalt()
+	{
+		return Salt;
+	}
+
+	public byte[] GetEncoded()
+	{
+		return null;
+	}
+
+	internal abstract KeyParameter GetEncoded(string algorithmOid);
+}