52 lines
1.7 KiB
C#
52 lines
1.7 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Encodings;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Engines;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Tls.Crypto.Impl.BC
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{
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internal sealed class BcTlsRsaEncryptor
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: TlsEncryptor
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{
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private static RsaKeyParameters CheckPublicKey(RsaKeyParameters pubKeyRsa)
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{
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if (null == pubKeyRsa || pubKeyRsa.IsPrivate)
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throw new ArgumentException("No public RSA key provided", "pubKeyRsa");
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return pubKeyRsa;
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}
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private readonly BcTlsCrypto m_crypto;
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private readonly RsaKeyParameters m_pubKeyRsa;
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internal BcTlsRsaEncryptor(BcTlsCrypto crypto, RsaKeyParameters pubKeyRsa)
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{
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this.m_crypto = crypto;
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this.m_pubKeyRsa = CheckPublicKey(pubKeyRsa);
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}
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public byte[] Encrypt(byte[] input, int inOff, int length)
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{
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try
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{
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Pkcs1Encoding encoding = new Pkcs1Encoding(new RsaBlindedEngine());
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encoding.Init(true, new ParametersWithRandom(m_pubKeyRsa, m_crypto.SecureRandom));
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return encoding.ProcessBlock(input, inOff, length);
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}
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catch (InvalidCipherTextException e)
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{
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/*
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* This should never happen, only during decryption.
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*/
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throw new TlsFatalAlert(AlertDescription.internal_error, e);
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}
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}
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}
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}
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#pragma warning restore
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#endif
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