Bonjours, Bonsoirs
Lorsque je décrypte le "Key" reçus dans "HelloConnectMessage" j'obtient :
Af//////////ADCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAIitMCi34K1SwhPyHm5ViYBIYi
jByfZNVIsH8iY4kzqqH8GOJDpjpNs5IJswhomtEz2cwrvJm3A6YpVvhGMkwvy9Db78gZjLhJoBrZETZxkh
VZGGk+N/lOO1IsChRnXNcQIcj/P89k8s/QuLuvYtAfYsZMxD6u9VqkTfSftGCdoRzPRjup7j5trk0Tgr/d
z+UVsu9nQWMtK4Qkb68Z67ovzWoEOKq/Ni4mv1wmlcatR+WlU8azYCh0nh3wqM/VsxO2q8XsLM9bCkgk1d
78EBtd/6kz80f12mDSl5L8QYWdx1du9/8ozb8YhHZ0FuPZc+SuDgcPFP3QC6cujsqfv3i3cCAwEAAQ==
Ensuite j' encrypt le salt, le nom de comte et le mot de passe avec cette clé mais j'ai cette erreur : " DER length more than 4 bytes: 127 "
Voici ma classe rsa :
public class RSAManager
{
private const string keym = "MIIBUzANBgkqhkiG9w0BAQEFAAOCAUAAMIIBOwKCATIAqpzRrvO3We7EMi9cWYqdfb3rbdinTay+" +
"hxQ6t3dOiJLY4NITxyeIuy97yZYOojOlXS2SuJ4cCHjCeLCQO1FwOz+nynQWcBWecz2QdbHD2Kz7" +
"mNLd2qtZyEDO76rd7LaDOxRvgs9DsH9sfnCuKLKbd725xTLc7wRfJzOH9v9rTTYVXssXe7JUpTx8" +
"nV8yKnTiq3WpzBeZT4C3ZCR18GBBCh3NmSTbze9i2KipgZnOwBvhskVlweuqZ1KNIKsQgipBFuyw" +
"w68RGNYaAKofMVVio4amrGpCT5MM852jpHsgJJfOUHu6md1CnvdwDPbo/PKQUI0RLb0ezE5gsPma" +
"s39QBw+DiaibUkk1aCkBxTOFqpIbjfLM2/4qA6GPcWUJxP3vmGoeCTMBLNEiPfLqVm86QzUCAwEA" +
"AQ==";
public List<byte> DecryptEncryptedData(string Input, List<byte> Key)
{
AsymmetricKeyParameter asymmetricKeyParameter = PublicKeyFactory.CreateKey(Convert.FromBase64String(keym));
byte[] DecryptByte = Decrypt(Key.ToArray(), asymmetricKeyParameter);
return Encrypt(Encoding.ASCII.GetBytes(Input), DecryptByte).ToList();
}
private byte[] Decrypt(byte[] data, AsymmetricKeyParameter key)
{
var engine = new RsaEngine();
engine.Init(false, key);
var blockSize = engine.GetInputBlockSize();
return engine.ProcessBlock(data, 0, blockSize);
}
private byte[] Encrypt(byte[] data, byte[] key)
{
AsymmetricKeyParameter asymmetricKey = PublicKeyFactory.CreateKey(key);
var engine = new RsaEngine();
engine.Init(true, asymmetricKey);
var blockSize = engine.GetInputBlockSize();
return engine.ProcessBlock(data, 0, blockSize);
}
}
J'utilise la DLL "BouncyCastle".