Examples with AuthenticateRequest com.google.u2f.key.messages.AuthenticateRequest used on opensource projects

Example 1 with AuthenticateRequest

use of com.google.u2f.key.messages.AuthenticateRequest in project OpenUnison by TremoloSecurity.

the class RawMessageCodec method decodeAuthenticateRequest.

public static AuthenticateRequest decodeAuthenticateRequest(byte[] data) throws U2FException {
    try {
        DataInputStream inputStream = new DataInputStream(new ByteArrayInputStream(data));
        byte controlByte = inputStream.readByte();
        byte[] challengeSha256 = new byte[32];
        inputStream.readFully(challengeSha256);
        byte[] appIdSha256 = new byte[32];
        inputStream.readFully(appIdSha256);
        byte[] keyHandle = new byte[inputStream.readUnsignedByte()];
        inputStream.readFully(keyHandle);
        if (inputStream.available() != 0) {
            throw new U2FException("Message ends with unexpected data");
        }
        return new AuthenticateRequest(controlByte, challengeSha256, appIdSha256, keyHandle);
    } catch (IOException e) {
        throw new U2FException("Error when parsing raw AuthenticateRequest", e);
    }
}