39 lines
894 B
C#
39 lines
894 B
C#
using System;
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Generators;
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using Org.BouncyCastle.Crypto.Parameters;
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namespace Org.BouncyCastle.Cms
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{
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/// <summary>
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/// PKCS5 scheme-2 - password converted to bytes assuming ASCII.
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/// </summary>
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public class Pkcs5Scheme2PbeKey
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: CmsPbeKey
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{
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public Pkcs5Scheme2PbeKey(
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string password,
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byte[] salt,
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int iterationCount)
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: base(password, salt, iterationCount)
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{
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}
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internal override KeyParameter GetEncoded(
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string algorithmOid)
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{
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Pkcs5S2ParametersGenerator gen = new Pkcs5S2ParametersGenerator();
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gen.Init(
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PbeParametersGenerator.Pkcs5PasswordToBytes(this.Password),
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this.Salt,
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this.IterationCount);
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return (KeyParameter) gen.GenerateDerivedParameters(
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algorithmOid,
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CmsEnvelopedHelper.Instance.GetKeySize(algorithmOid));
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}
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}
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}
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