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Andrey K. Choi
2025-10-09 09:57:24 +09:00
commit 4d551bd74f
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output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Pkcs/EncryptedPrivateKeyInfoFactory.cs Normal file
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using System;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Security;
namespace Org.BouncyCastle.Pkcs;
public sealed class EncryptedPrivateKeyInfoFactory
{
private EncryptedPrivateKeyInfoFactory()
{
}
public static EncryptedPrivateKeyInfo CreateEncryptedPrivateKeyInfo(DerObjectIdentifier algorithm, char[] passPhrase, byte[] salt, int iterationCount, AsymmetricKeyParameter key)
{
return CreateEncryptedPrivateKeyInfo(algorithm.Id, passPhrase, salt, iterationCount, PrivateKeyInfoFactory.CreatePrivateKeyInfo(key));
}
public static EncryptedPrivateKeyInfo CreateEncryptedPrivateKeyInfo(string algorithm, char[] passPhrase, byte[] salt, int iterationCount, AsymmetricKeyParameter key)
{
return CreateEncryptedPrivateKeyInfo(algorithm, passPhrase, salt, iterationCount, PrivateKeyInfoFactory.CreatePrivateKeyInfo(key));
}
public static EncryptedPrivateKeyInfo CreateEncryptedPrivateKeyInfo(string algorithm, char[] passPhrase, byte[] salt, int iterationCount, PrivateKeyInfo keyInfo)
{
if (!(PbeUtilities.CreateEngine(algorithm) is IBufferedCipher bufferedCipher))
{
throw new Exception("Unknown encryption algorithm: " + algorithm);
}
Asn1Encodable asn1Encodable = PbeUtilities.GenerateAlgorithmParameters(algorithm, salt, iterationCount);
ICipherParameters parameters = PbeUtilities.GenerateCipherParameters(algorithm, passPhrase, asn1Encodable);
bufferedCipher.Init(forEncryption: true, parameters);
byte[] encoding = bufferedCipher.DoFinal(keyInfo.GetEncoded());
DerObjectIdentifier objectIdentifier = PbeUtilities.GetObjectIdentifier(algorithm);
AlgorithmIdentifier algId = new AlgorithmIdentifier(objectIdentifier, asn1Encodable);
return new EncryptedPrivateKeyInfo(algId, encoding);
}
}