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refactor(RSADecryptor): statt der Verwendung einer separaten init-Methode zur Initialisierung von RSA, wurde Lazy Loading verwendet.

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Developer 02 2024-11-20 10:51:18 +01:00
parent 5010224500
commit cdb0009e7c
3 changed files with 24 additions and 28 deletions
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2
DigitalData.Core.Security/RSACryptographer.cs
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@ -9,7 +9,7 @@ namespace DigitalData.Core.Security
public RSAEncryptionPadding Padding { get; init; } = RSAEncryptionPadding.OaepSHA256;
protected readonly RSA _rsa = RSA.Create();
protected virtual RSA RSA { get; } = RSA.Create();
internal RSACryptographer() { }
}

41
DigitalData.Core.Security/RSADecryptor.cs
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@ -1,6 +1,6 @@
using DigitalData.Core.Abstractions.Security;
using DigitalData.Core.Security.Extensions;
using System.Runtime.Serialization;
using System.Security.Cryptography;
namespace DigitalData.Core.Security
{
@ -16,33 +16,32 @@ namespace DigitalData.Core.Security
public IRSAEncryptor Encryptor => _lazyEncryptor.Value;
private readonly Lazy<RSA> lazyRSA;
protected override RSA RSA => lazyRSA.Value;
public RSADecryptor()
{
_lazyEncryptor = new(() => new RSAEncryptor()
{
Pem = _rsa.ExportRSAPublicKeyPem(),
Pem = RSA.ExportRSAPublicKeyPem(),
Padding = Padding
});
lazyRSA = new(() =>
{
var rsa = RSA.Create();
if (Password is null)
RSA.ImportFromPem(Pem);
else
RSA.ImportFromEncryptedPem(Pem, Password.AsSpan());
return rsa;
});
}
public byte[] Decrypt(byte[] data) => RSA.Decrypt(data, Padding);
[OnDeserialized]
private void OnDeserialized(StreamingContext context) => Init();
private IRSADecryptor Init()
{
if (string.IsNullOrWhiteSpace(Pem))
throw new InvalidOperationException("Pem cannot be null or empty.");
if (Password is null)
_rsa.ImportFromPem(Pem);
else
_rsa.ImportFromEncryptedPem(Pem, Password.AsSpan());
return this;
}
public byte[] Decrypt(byte[] data) => _rsa.Decrypt(data, Padding);
public string Decrypt(string data) => _rsa.Decrypt(data.Base64ToByte(), Padding).BytesToString();
public string Decrypt(string data) => RSA.Decrypt(data.Base64ToByte(), Padding).BytesToString();
}
}

9
DigitalData.Core.Security/RSAEncryptor.cs
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@ -10,17 +10,14 @@ namespace DigitalData.Core.Security
get => base.Pem;
init
{
if (string.IsNullOrWhiteSpace(Pem))
throw new InvalidOperationException("Pem cannot be null or empty.");
_rsa.ImportFromPem(base.Pem);
RSA.ImportFromPem(base.Pem);
base.Pem = value;
}
}
public byte[] Encrypt(byte[] data) => _rsa.Encrypt(data, Padding);
public byte[] Encrypt(byte[] data) => RSA.Encrypt(data, Padding);
public string Encrypt(string data) => _rsa.Encrypt(data.Base64ToByte(), Padding).BytesToString();
public string Encrypt(string data) => RSA.Encrypt(data.Base64ToByte(), Padding).BytesToString();
public bool Verify(string data, string signature) => Encrypt(data) == signature;
}