bouncycastle

I'm currently having some difficulties with getting BouncyCastle to work. Been searching on this for a couple of days now, so I'm hoping you can provide any helpful insights. Here's the set-up. Using REST-protocol, the Android-client sends POST-messages to the server. I made a separate project with classes representing these messages, so that I can include this as a library on both the client and the server. The message-objects are first parsed to a JSON-string and afterwards interpreted on the server. For the sake of data-integrity, a message contains a digital signature (DSA). I asked a

Here's a simplified version of the code I'm using to perform simple HTTPS requests: // Assume the variables host, file and postData have valid String values final URL url = new URL("https", host, file); final HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("POST"); connection.setDoInput(true); connection.setDoOutput(true); connection.setRequestProperty("Content-length", String.valueOf(postData.length())); final DataOutputStream output = new DataOutputStream(connection.getOutputStream()); output.writeBytes(postData); output.close(); final

in my c # project, I put this piece of code : initially, I recovered from the certificate that I created with bouncy castle, the key pair, then I extract the private key, my goal is that , it is in a format. pem, AsymmetricKeyParameter private_RSA = keyPair2.Private; PrivateKeyInfo k_RSA = PrivateKeyInfoFactory.CreatePrivateKeyInfo(private_RSA); byte[] serializedKey_priv_RSA = k_RSA.ToAsn1Object().GetDerEncoded(); // byte[] clé = Org.BouncyCastle.Utilities.Encoders.Hex.Decode(serializedKey); string data_priv_RSA = Convert.ToBase64String(serializedKey_priv_RSA); using (fluxInfos2 = new

I have created key pairs for elliptic curve DSA signatures using BouncyCastle and managed to import the public key into ECDsaCng using an XMLString accoding to RFC4050 . Now I want to also move the private key and have not managed to find a solution. The closest I have got is using CngKey.Import. CngKey.Import supports PKCS#8 format so if you can get your keys into valid pkcs8 then it should work. Unfortunately the following code does not quite work. var privatekey = (ECPrivateKeyParameters) keyPair.Private; var pkinfo = PrivateKeyInfoFactory.CreatePrivateKeyInfo(privatekey); byte[] pkcs8Blob

To support TLS 1.1 and above on WinCE we are using BouncyCastle library, but when making a connection it throws error "Internal TLS error, this could be an attack". Can someone advice on this. TcpClient client = new TcpClient(); client.Connect(resolvedIpAddr, PORT_TLS_11); Org.BouncyCastle.Security.SecureRandom sr = new Org.BouncyCastle.Security.SecureRandom(); TlsProtocolHandler handler = new TlsProtocolHandler(client.GetStream(), sr); handler.Connect(new MyTlsClient()); 来源： https://stackoverflow.com/questions/33776495/tls-1-2-c-sharp-bouncycastle

I'm trying to read certificate from smime.p7s file, the certificate chain is: Baltimora Cyber Trust --> DigitPA --> Aruba PEC So when i'm trying to extract, I retrieve only the last two certificate, the last like subject and the first like issuer. What am I wrong? the code: private List<CertificateInfo> reading(ASN1InputStream asn1Stream) throws IOException, CMSException, CertificateException { ArrayList<CertificateInfo> infos = new ArrayList<CertificateInfo>(); ASN1Primitive obj = asn1Stream.readObject(); ContentInfo contentInfo = ContentInfo.getInstance(obj); CMSSignedData cms = new