forked from wupeixuan/JDKSourceCode1.8
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCertificate.java
More file actions
307 lines (281 loc) · 9.83 KB
/
Certificate.java
File metadata and controls
307 lines (281 loc) · 9.83 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*/
package java.security.cert;
import java.util.Arrays;
import java.security.Provider;
import java.security.PublicKey;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.InvalidKeyException;
import java.security.SignatureException;
import sun.security.x509.X509CertImpl;
/**
* <p>Abstract class for managing a variety of identity certificates.
* An identity certificate is a binding of a principal to a public key which
* is vouched for by another principal. (A principal represents
* an entity such as an individual user, a group, or a corporation.)
*<p>
* This class is an abstraction for certificates that have different
* formats but important common uses. For example, different types of
* certificates, such as X.509 and PGP, share general certificate
* functionality (like encoding and verifying) and
* some types of information (like a public key).
* <p>
* X.509, PGP, and SDSI certificates can all be implemented by
* subclassing the Certificate class, even though they contain different
* sets of information, and they store and retrieve the information in
* different ways.
*
* @see X509Certificate
* @see CertificateFactory
*
* @author Hemma Prafullchandra
*/
public abstract class Certificate implements java.io.Serializable {
private static final long serialVersionUID = -3585440601605666277L;
// the certificate type
private final String type;
/** Cache the hash code for the certiticate */
private int hash = -1; // Default to -1
/**
* Creates a certificate of the specified type.
*
* @param type the standard name of the certificate type.
* See the CertificateFactory section in the <a href=
* "{@docRoot}/../technotes/guides/security/StandardNames.html#CertificateFactory">
* Java Cryptography Architecture Standard Algorithm Name Documentation</a>
* for information about standard certificate types.
*/
protected Certificate(String type) {
this.type = type;
}
/**
* Returns the type of this certificate.
*
* @return the type of this certificate.
*/
public final String getType() {
return this.type;
}
/**
* Compares this certificate for equality with the specified
* object. If the {@code other} object is an
* {@code instanceof} {@code Certificate}, then
* its encoded form is retrieved and compared with the
* encoded form of this certificate.
*
* @param other the object to test for equality with this certificate.
* @return true iff the encoded forms of the two certificates
* match, false otherwise.
*/
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof Certificate)) {
return false;
}
try {
byte[] thisCert = X509CertImpl.getEncodedInternal(this);
byte[] otherCert = X509CertImpl.getEncodedInternal((Certificate)other);
return Arrays.equals(thisCert, otherCert);
} catch (CertificateException e) {
return false;
}
}
/**
* Returns a hashcode value for this certificate from its
* encoded form.
*
* @return the hashcode value.
*/
public int hashCode() {
int h = hash;
if (h == -1) {
try {
h = Arrays.hashCode(X509CertImpl.getEncodedInternal(this));
} catch (CertificateException e) {
h = 0;
}
hash = h;
}
return h;
}
/**
* Returns the encoded form of this certificate. It is
* assumed that each certificate type would have only a single
* form of encoding; for example, X.509 certificates would
* be encoded as ASN.1 DER.
*
* @return the encoded form of this certificate
*
* @exception CertificateEncodingException if an encoding error occurs.
*/
public abstract byte[] getEncoded()
throws CertificateEncodingException;
/**
* Verifies that this certificate was signed using the
* private key that corresponds to the specified public key.
*
* @param key the PublicKey used to carry out the verification.
*
* @exception NoSuchAlgorithmException on unsupported signature
* algorithms.
* @exception InvalidKeyException on incorrect key.
* @exception NoSuchProviderException if there's no default provider.
* @exception SignatureException on signature errors.
* @exception CertificateException on encoding errors.
*/
public abstract void verify(PublicKey key)
throws CertificateException, NoSuchAlgorithmException,
InvalidKeyException, NoSuchProviderException,
SignatureException;
/**
* Verifies that this certificate was signed using the
* private key that corresponds to the specified public key.
* This method uses the signature verification engine
* supplied by the specified provider.
*
* @param key the PublicKey used to carry out the verification.
* @param sigProvider the name of the signature provider.
*
* @exception NoSuchAlgorithmException on unsupported signature
* algorithms.
* @exception InvalidKeyException on incorrect key.
* @exception NoSuchProviderException on incorrect provider.
* @exception SignatureException on signature errors.
* @exception CertificateException on encoding errors.
*/
public abstract void verify(PublicKey key, String sigProvider)
throws CertificateException, NoSuchAlgorithmException,
InvalidKeyException, NoSuchProviderException,
SignatureException;
/**
* Verifies that this certificate was signed using the
* private key that corresponds to the specified public key.
* This method uses the signature verification engine
* supplied by the specified provider. Note that the specified
* Provider object does not have to be registered in the provider list.
*
* <p> This method was added to version 1.8 of the Java Platform
* Standard Edition. In order to maintain backwards compatibility with
* existing service providers, this method cannot be {@code abstract}
* and by default throws an {@code UnsupportedOperationException}.
*
* @param key the PublicKey used to carry out the verification.
* @param sigProvider the signature provider.
*
* @exception NoSuchAlgorithmException on unsupported signature
* algorithms.
* @exception InvalidKeyException on incorrect key.
* @exception SignatureException on signature errors.
* @exception CertificateException on encoding errors.
* @exception UnsupportedOperationException if the method is not supported
* @since 1.8
*/
public void verify(PublicKey key, Provider sigProvider)
throws CertificateException, NoSuchAlgorithmException,
InvalidKeyException, SignatureException {
throw new UnsupportedOperationException();
}
/**
* Returns a string representation of this certificate.
*
* @return a string representation of this certificate.
*/
public abstract String toString();
/**
* Gets the public key from this certificate.
*
* @return the public key.
*/
public abstract PublicKey getPublicKey();
/**
* Alternate Certificate class for serialization.
* @since 1.3
*/
protected static class CertificateRep implements java.io.Serializable {
private static final long serialVersionUID = -8563758940495660020L;
private String type;
private byte[] data;
/**
* Construct the alternate Certificate class with the Certificate
* type and Certificate encoding bytes.
*
* <p>
*
* @param type the standard name of the Certificate type. <p>
*
* @param data the Certificate data.
*/
protected CertificateRep(String type, byte[] data) {
this.type = type;
this.data = data;
}
/**
* Resolve the Certificate Object.
*
* <p>
*
* @return the resolved Certificate Object
*
* @throws java.io.ObjectStreamException if the Certificate
* could not be resolved
*/
protected Object readResolve() throws java.io.ObjectStreamException {
try {
CertificateFactory cf = CertificateFactory.getInstance(type);
return cf.generateCertificate
(new java.io.ByteArrayInputStream(data));
} catch (CertificateException e) {
throw new java.io.NotSerializableException
("java.security.cert.Certificate: " +
type +
": " +
e.getMessage());
}
}
}
/**
* Replace the Certificate to be serialized.
*
* @return the alternate Certificate object to be serialized
*
* @throws java.io.ObjectStreamException if a new object representing
* this Certificate could not be created
* @since 1.3
*/
protected Object writeReplace() throws java.io.ObjectStreamException {
try {
return new CertificateRep(type, getEncoded());
} catch (CertificateException e) {
throw new java.io.NotSerializableException
("java.security.cert.Certificate: " +
type +
": " +
e.getMessage());
}
}
}