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1
31 package org.objectweb.proactive.ext.security.crypto;
32
33 import org.bouncycastle.jce.provider.JDKKeyPairGenerator;
34
35 import java.io.FileOutputStream  ;
36 import java.io.ObjectOutputStream ;
37
38 import java.security.KeyPair ;
39 import java.security.PrivateKey ;
40 import java.security.PublicKey ;
41 import java.security.SecureRandom ;
42
43
44 public class CertificationAuthority {
45 private static PrivateKey privateKey;
46 private static PublicKey publicKey;
47
48 public CertificationAuthority() {
49 generateKeyPair();
50 }
51
52 public static PublicKey get_PublicKey() {
53 return publicKey;
54 }
55
56 public static PrivateKey get_PrivateKey() {
57 return privateKey;
58 }
59
60 public static void writeKeys() {
61 try {
62 System.out.println("Generating AC publicKey...");
63
64 FileOutputStream fout = new FileOutputStream ("acPublicKey");
65 ObjectOutputStream out = new ObjectOutputStream (fout);
66 out.writeObject(publicKey);
67 out.flush();
68 out.close();
69 System.out.println("Generating AC privateKey...");
70 fout = new FileOutputStream ("acPrivateKey");
71 out = new ObjectOutputStream (fout);
72 out.writeObject(privateKey);
73 out.flush();
74 out.close();
75 System.out.println("The KeyPair has been correctly generated.");
76 System.out.println("The AC publicKey is saved in : acPublicKey");
77 System.out.println("The AC privateKey is saved in : acPrivateKey");
78 } catch (Exception e) {
79 System.out.println("Exception in AC key serialization :" + e);
80 }
81 }
82
83 public static void main(String [] args) {
84 new CertificationAuthority();
85 writeKeys();
86 }
87
88 private static void generateKeyPair() {
89 SecureRandom rand = new SecureRandom ();
94 JDKKeyPairGenerator.RSA keyPairGen = new JDKKeyPairGenerator.RSA();
95 keyPairGen.initialize(512, rand);
96
97 KeyPair keyPair = keyPairGen.generateKeyPair();
98 privateKey = keyPair.getPrivate();
99 publicKey = keyPair.getPublic();
100 }
101 }
102 |
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