27
28 import java.security.*;
29 import java.security.spec.AlgorithmParameterSpec;
30
31 import javax.crypto.*;
32 import javax.crypto.spec.SecretKeySpec;
33
34 import sun.security.internal.spec.TlsRsaPremasterSecretParameterSpec;
35
36 /**
37 * KeyGenerator implementation for the SSL/TLS RSA premaster secret.
38 *
39 * @author Andreas Sterbenz
40 * @since 1.6
41 */
42 public final class TlsRsaPremasterSecretGenerator extends KeyGeneratorSpi {
43
44 private final static String MSG = "TlsRsaPremasterSecretGenerator must be "
45 + "initialized using a TlsRsaPremasterSecretParameterSpec";
46
47 private TlsRsaPremasterSecretParameterSpec spec;
48 private SecureRandom random;
49
50 public TlsRsaPremasterSecretGenerator() {
51 }
52
53 protected void engineInit(SecureRandom random) {
54 throw new InvalidParameterException(MSG);
55 }
56
57 protected void engineInit(AlgorithmParameterSpec params,
58 SecureRandom random) throws InvalidAlgorithmParameterException {
59 if (!(params instanceof TlsRsaPremasterSecretParameterSpec)) {
60 throw new InvalidAlgorithmParameterException(MSG);
61 }
62 this.spec = (TlsRsaPremasterSecretParameterSpec)params;
63 this.random = random;
64 }
65
66 protected void engineInit(int keysize, SecureRandom random) {
67 throw new InvalidParameterException(MSG);
68 }
69
70 // Only can be used in client side to generate TLS RSA premaster secret.
71 protected SecretKey engineGenerateKey() {
72 if (spec == null) {
73 throw new IllegalStateException(
74 "TlsRsaPremasterSecretGenerator must be initialized");
75 }
76
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27
28 import java.security.*;
29 import java.security.spec.AlgorithmParameterSpec;
30
31 import javax.crypto.*;
32 import javax.crypto.spec.SecretKeySpec;
33
34 import sun.security.internal.spec.TlsRsaPremasterSecretParameterSpec;
35
36 /**
37 * KeyGenerator implementation for the SSL/TLS RSA premaster secret.
38 *
39 * @author Andreas Sterbenz
40 * @since 1.6
41 */
42 public final class TlsRsaPremasterSecretGenerator extends KeyGeneratorSpi {
43
44 private final static String MSG = "TlsRsaPremasterSecretGenerator must be "
45 + "initialized using a TlsRsaPremasterSecretParameterSpec";
46
47 @SuppressWarnings("deprecation")
48 private TlsRsaPremasterSecretParameterSpec spec;
49 private SecureRandom random;
50
51 public TlsRsaPremasterSecretGenerator() {
52 }
53
54 protected void engineInit(SecureRandom random) {
55 throw new InvalidParameterException(MSG);
56 }
57
58 @SuppressWarnings("deprecation")
59 protected void engineInit(AlgorithmParameterSpec params,
60 SecureRandom random) throws InvalidAlgorithmParameterException {
61 if (!(params instanceof TlsRsaPremasterSecretParameterSpec)) {
62 throw new InvalidAlgorithmParameterException(MSG);
63 }
64 this.spec = (TlsRsaPremasterSecretParameterSpec)params;
65 this.random = random;
66 }
67
68 protected void engineInit(int keysize, SecureRandom random) {
69 throw new InvalidParameterException(MSG);
70 }
71
72 // Only can be used in client side to generate TLS RSA premaster secret.
73 protected SecretKey engineGenerateKey() {
74 if (spec == null) {
75 throw new IllegalStateException(
76 "TlsRsaPremasterSecretGenerator must be initialized");
77 }
78
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