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using System;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Generators;
using Org.BouncyCastle.Crypto.Parameters;
namespace Org.BouncyCastle.Cms
{
/// <summary>
/// PKCS5 scheme-2 - password converted to bytes assuming ASCII.
/// </summary>
public class Pkcs5Scheme2PbeKey
: CmsPbeKey
{
public Pkcs5Scheme2PbeKey(
char[] password,
byte[] salt,
int iterationCount)
: base(password, salt, iterationCount)
{
}
public Pkcs5Scheme2PbeKey(
char[] password,
AlgorithmIdentifier keyDerivationAlgorithm)
: base(password, keyDerivationAlgorithm)
{
}
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
public Pkcs5Scheme2PbeKey(ReadOnlySpan<char> password, ReadOnlySpan<byte> salt, int iterationCount)
: base(password, salt, iterationCount)
{
}
public Pkcs5Scheme2PbeKey(ReadOnlySpan<char> password, AlgorithmIdentifier keyDerivationAlgorithm)
: base(password, keyDerivationAlgorithm)
{
}
#endif
internal override KeyParameter GetEncoded(
string algorithmOid)
{
Pkcs5S2ParametersGenerator gen = new Pkcs5S2ParametersGenerator();
gen.Init(
PbeParametersGenerator.Pkcs5PasswordToBytes(password),
salt,
iterationCount);
return (KeyParameter) gen.GenerateDerivedParameters(
algorithmOid,
CmsEnvelopedHelper.Instance.GetKeySize(algorithmOid));
}
}
}
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