1 /*
2 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
122 throw new NoSuchAlgorithmException
123 (algorithm + " SecretKeyFactory not available");
124 }
125 }
126
127 /**
128 * Returns a {@code SecretKeyFactory} object that converts
129 * secret keys of the specified algorithm.
130 *
131 * <p> This method traverses the list of registered security Providers,
132 * starting with the most preferred Provider.
133 * A new SecretKeyFactory object encapsulating the
134 * SecretKeyFactorySpi implementation from the first
135 * Provider that supports the specified algorithm is returned.
136 *
137 * <p> Note that the list of registered providers may be retrieved via
138 * the {@link Security#getProviders() Security.getProviders()} method.
139 *
140 * @implNote
141 * The JDK Reference Implementation additionally uses the
142 * {@code jdk.security.provider.preferred} property to determine
143 * the preferred provider order for the specified algorithm. This
144 * may be different than the order of providers returned by
145 * {@link Security#getProviders() Security.getProviders()}.
146 *
147 * @param algorithm the standard name of the requested secret-key
148 * algorithm.
149 * See the SecretKeyFactory section in the <a href=
150 * "{@docRoot}/../technotes/guides/security/StandardNames.html#SecretKeyFactory">
151 * Java Cryptography Architecture Standard Algorithm Name Documentation</a>
152 * for information about standard algorithm names.
153 *
154 * @return the new {@code SecretKeyFactory} object.
155 *
156 * @exception NullPointerException if the specified algorithm
157 * is null.
158 *
159 * @exception NoSuchAlgorithmException if no Provider supports a
160 * SecretKeyFactorySpi implementation for the
161 * specified algorithm.
162 *
|
1 /*
2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
122 throw new NoSuchAlgorithmException
123 (algorithm + " SecretKeyFactory not available");
124 }
125 }
126
127 /**
128 * Returns a {@code SecretKeyFactory} object that converts
129 * secret keys of the specified algorithm.
130 *
131 * <p> This method traverses the list of registered security Providers,
132 * starting with the most preferred Provider.
133 * A new SecretKeyFactory object encapsulating the
134 * SecretKeyFactorySpi implementation from the first
135 * Provider that supports the specified algorithm is returned.
136 *
137 * <p> Note that the list of registered providers may be retrieved via
138 * the {@link Security#getProviders() Security.getProviders()} method.
139 *
140 * @implNote
141 * The JDK Reference Implementation additionally uses the
142 * {@code jdk.security.provider.preferred}
143 * {@link Security#getProperty(String) Security} property to determine
144 * the preferred provider order for the specified algorithm. This
145 * may be different than the order of providers returned by
146 * {@link Security#getProviders() Security.getProviders()}.
147 *
148 * @param algorithm the standard name of the requested secret-key
149 * algorithm.
150 * See the SecretKeyFactory section in the <a href=
151 * "{@docRoot}/../technotes/guides/security/StandardNames.html#SecretKeyFactory">
152 * Java Cryptography Architecture Standard Algorithm Name Documentation</a>
153 * for information about standard algorithm names.
154 *
155 * @return the new {@code SecretKeyFactory} object.
156 *
157 * @exception NullPointerException if the specified algorithm
158 * is null.
159 *
160 * @exception NoSuchAlgorithmException if no Provider supports a
161 * SecretKeyFactorySpi implementation for the
162 * specified algorithm.
163 *
|