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