Java SSLSocket z TLS1.3 i TLS_AES_128_GCM_SHA256 Przykład szyfrowania

Opublikowany: 2020-07-18
Java SSLSocket z TLS1.3 i TLS_AES_128_GCM_SHA256 samouczek dotyczący szyfrowania

Jak wysłać żądanie HTTPs TLS1.3 do swojej domeny i wydrukować odpowiedź?

Klasa SSLSocket rozszerza Socket i zapewnia bezpieczne gniazdo przy użyciu protokołów takich jak „Secure Sockets Layer” (SSL) lub IETF „Transport Layer Security” (TLS).

W tym tutorialu ustawimy protokół TLS1.3 i szyfr TLS_AES_128_GCM_SHA256 .

Zacznijmy:

  • Utwórz plik CrunchifySSLTLS13Tutorial.java
  • Ustaw protokół: TLS1.3
  • Ustaw szyfr: TLS_AES_128_GCM_SHA256
  • Wykonaj wywołanie HTTP 1.0 do crunchify.com
  • Wykonaj wywołanie HTTP 1.0 do google.com
  • Wydrukuj odpowiedź
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package crunchify . com . tutorials ;
 
import javax . net . ssl . SSLSocket ;
import javax . net . ssl . SSLSocketFactory ;
import java . io . * ;
 
/**
* @author Crunchify.com
* version: 1.0
* Tutorial: Java SSLSocket with TLS1.3 and TLS_AES_128_GCM_SHA256 Cipher Tutorial
*/
 
public class CrunchifySSLTLS13Tutorial {
 
     // TLS1.3: There are new ciphersuites that only work in TLSv1.3. The old ciphersuites cannot be used for TLSv1.3 connections and the new ones cannot be used in TLSv1.2 and below.
     //The new ciphersuites are defined differently and do not specify the certificate type (e.g. RSA, DSA, ECDSA) or the key exchange mechanism (e.g. DHE or ECHDE). This has implications for ciphersuite configuration.
     private static final String [ ] crunchifyProtocols = new String [ ] { "TLSv1.3" } ;
 
     // TLS_AES_128_GCM_SHA256 Encryption: Advanced Encryption Standard with 128bit key in Galois/Counter mode (AES 128 GCM)
     // Hash: Secure Hash Algorithm 256 (SHA256)
     // RFC 8446
     private static final String [ ] crunchifyCipher = new String [ ] { "TLS_AES_256_GCM_SHA384" } ;
 
     public static void main ( String [ ] args ) throws Exception {
 
         // This class extends Sockets and provides secure socket using protocols such as the "Secure Sockets Layer" (SSL) or IETF "Transport Layer Security" (TLS) protocols.
         SSLSocket crunchifySocket = null ;
         PrintWriter crunchifyPrintWriter = null ;
         BufferedReader crunchifyBufferReader = null ;
 
         try {
             // initialize SSL Socket Factory
             SSLSocketFactory crunchifyFactory = ( SSLSocketFactory ) SSLSocketFactory . getDefault ( ) ;
 
             crunchifySocket = ( SSLSocket ) crunchifyFactory . createSocket ( "google.com" , 443 ) ;
 
             // Enable protocol : TLS 1.3
             crunchifySocket . setEnabledProtocols ( crunchifyProtocols ) ;
 
             // Enable Cipher: TLS_AES_128_GCM_SHA256
             crunchifySocket . setEnabledCipherSuites ( crunchifyCipher ) ;
 
             // Start Handshake
             crunchifySocket . startHandshake ( ) ;
 
             // Creates a new PrintWriter, without automatic line flushing.
             crunchifyPrintWriter = new PrintWriter ( new BufferedWriter ( new OutputStreamWriter ( crunchifySocket . getOutputStream ( ) ) ) ) ;
 
             crunchifyPrintWriter . println ( "GET / HTTP/1.0" ) ;
             crunchifyPrintWriter . println ( ) ;
             crunchifyPrintWriter . flush ( ) ;
 
             if ( crunchifyPrintWriter . checkError ( ) )
                 System . out . println ( "SSLSocketClient Error:  java.io.PrintWriter error" ) ;
 
             // Let's get response
             crunchifyBufferReader = new BufferedReader ( new InputStreamReader ( crunchifySocket . getInputStream ( ) ) ) ;
 
             String crunchifyStringLine ;
             while ( ( crunchifyStringLine = crunchifyBufferReader . readLine ( ) ) ! = null )
                 crunchifyLog ( crunchifyStringLine ) ;
 
         } catch ( Exception e ) {
             e . printStackTrace ( ) ;
         } finally {
             // Close Socket
             if ( crunchifySocket ! = null )
                 crunchifySocket . close ( ) ;
 
             // Close PrintWriter
             if ( crunchifyPrintWriter ! = null )
                 crunchifyPrintWriter . close ( ) ;
 
             // Close Buffer Reader
             if ( crunchifyBufferReader ! = null )
                 crunchifyBufferReader . close ( ) ;
         }
     }
 
     private static void crunchifyLog ( String crunchifyStringLine ) {
 
         System . out . println ( crunchifyStringLine ) ;
     }
 
}

Są to zdefiniowane protokoły TLS1.3:

  • TLS_AES_128_CCM_8_SHA256
  • TLS_AES_128_CCM_SHA256
  • TLS_AES_128_GCM_SHA256
  • TLS_AES_256_GCM_SHA384
  • TLS_CHACHA20_POLY1305_SHA256

Wynik:

W Crunchify mamy TLS1.3 enabled i dlatego nie pojawił się żaden błąd.

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CrunchifySSLTLS13Tutorial
HTTP / 1.1 301 Moved Permanently
Server : nginx
Date : Sat , 18 Jul 2020 03 : 10 : 08 GMT
Content - Type : text / html
Content - Length : 162
Connection : close
Location : http : //000000000.kinsta.com/
X - Content - Type - Options : nosniff
 
< html >
< head > < title > 301 Moved Permanently < / title > < / head >
< body >
< center > < h1 > 301 Moved Permanently < / h1 > < / center >
< hr > < center > nginx < / center >
< / body >
< / html >
 
Process finished with exit code 0

Spróbuj wejść na Google.com. Wystarczy zastąpić domenę crunchify.com i ponownie uruchomić program.

Wynik z domeną google.com:

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HTTP / 1.0 200 OK
Date : Sat , 18 Jul 2020 03 : 29 : 22 GMT
Expires : - 1
Cache - Control : private , max - age = 0
Content - Type : text / html ; charset = ISO - 8859 - 1
P3P : CP = "This is not a P3P policy! See g.co/p3phelp for more info."
Server : gws
 
X - XSS - Protection : 0
X - Frame - Options : SAMEORIGIN
 
Set - Cookie : 1P_JAR = 2020 - 07 - 18 - 03 ; expires = Mon , 17 - Aug - 2020 03 : 29 : 22 GMT ; path =/ ; domain = . google . com ; Secure
Set - Cookie : NID = 204 = BDdFDUl5oe - 0jvYXe8O9RF8x2cYz5q6dy0JRxsdQYFYV86TqTAEIPYB5BwoZCiaM0oUQ5GovV9x8qAiflI3gSbt45VrVmrXCgQX687SyRPO1lh

Mam nadzieję, że ten samouczek pomoże Ci trafić na dowolny adres URL za pomocą protokołu TLS1.3.