http://www.jexp.ru/index.php?action=history&feed=atom&title=Java_by_API%2Fjava.security.spec%2FDSAPublicKeySpec 2026-04-23T19:27:01Z История изменений этой страницы в вики MediaWiki 1.30.0 http://www.jexp.ru/index.php?title=Java_by_API/java.security.spec/DSAPublicKeySpec&diff=2347&oldid=prev 2010-05-31T17:43:48Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <tr style="vertical-align: top;" lang="ru"> <td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td> <td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 17:43, 31 мая 2010</td> </tr><tr><td colspan="2" style="text-align: center;" lang="ru"><div class="mw-diff-empty">(нет различий)</div> </td></tr></table>

http://www.jexp.ru/index.php?title=Java_by_API/java.security.spec/DSAPublicKeySpec&diff=2348&oldid=prev 2010-05-31T14:44:20Z

<p>1 версия</p> <p><b>Новая страница</b></p><div>== DSAPublicKeySpec: getQ() ==<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;!-- start source code --&gt;<br /> <br /> &lt;source lang=&quot;java&quot;&gt;<br /> <br /> <br /> import java.io.FileInputStream;<br /> import java.io.FileOutputStream;<br /> import java.io.ObjectInputStream;<br /> import java.io.ObjectOutputStream;<br /> import java.math.BigInteger;<br /> import java.security.KeyFactory;<br /> import java.security.KeyPair;<br /> import java.security.KeyPairGenerator;<br /> import java.security.PublicKey;<br /> import java.security.SecureRandom;<br /> import java.security.spec.DSAPublicKeySpec;<br /> public class MainClass {<br /> public static void main(String args[]) throws Exception {<br /> KeyPairGenerator keyGen = KeyPairGenerator.getInstance(&quot;DSA&quot;);<br /> SecureRandom random = SecureRandom.getInstance(&quot;SHA1PRNG&quot;, &quot;SUN&quot;);<br /> random.setSeed(101L);<br /> keyGen.initialize(1024, random);<br /> KeyPair keypair = keyGen.generateKeyPair();<br /> KeyFactory kfactory = KeyFactory.getInstance(&quot;DSA&quot;);<br /> DSAPublicKeySpec kspec = (DSAPublicKeySpec) kfactory.getKeySpec(keypair.getPublic(),<br /> DSAPublicKeySpec.class);<br /> System.out.println(keypair.getPublic());<br /> FileOutputStream fos = new FileOutputStream(&quot;publicKeys&quot;);<br /> ObjectOutputStream oos = new ObjectOutputStream(fos);<br /> oos.writeObject(kspec.getY());<br /> oos.writeObject(kspec.getP());<br /> oos.writeObject(kspec.getQ());<br /> oos.writeObject(kspec.getG());<br /> FileInputStream fin = new FileInputStream(&quot;publicKeys&quot;);<br /> ObjectInputStream ois = new ObjectInputStream(fin);<br /> BigInteger Y = (BigInteger) ois.readObject();<br /> BigInteger P = (BigInteger) ois.readObject();<br /> BigInteger Q = (BigInteger) ois.readObject();<br /> BigInteger G = (BigInteger) ois.readObject();<br /> DSAPublicKeySpec keyspec = new DSAPublicKeySpec(Y, P, Q, G);<br /> PublicKey pkey = kfactory.generatePublic(keyspec);<br /> System.out.println(pkey);<br /> }<br /> }<br /> /*Sun DSA Public Key<br /> Parameters:<br /> p:<br /> fd7f5381 1d751229 52df4a9c 2eece4e7 f611b752 3cef4400 c31e3f80 b6512669<br /> 455d4022 51fb593d 8d58fabf c5f5ba30 f6cb9b55 6cd7813b 801d346f f26660b7<br /> 6b9950a5 a49f9fe8 047b1022 c24fbba9 d7feb7c6 1bf83b57 e7c6a8a6 150f04fb<br /> 83f6d3c5 1ec30235 54135a16 9132f675 f3ae2b61 d72aeff2 2203199d d14801c7<br /> q:<br /> 9760508f 15230bcc b292b982 a2eb840b f0581cf5<br /> g:<br /> f7e1a085 d69b3dde cbbcab5c 36b857b9 7994afbb fa3aea82 f9574c0b 3d078267<br /> 5159578e bad4594f e6710710 8180b449 167123e8 4c281613 b7cf0932 8cc8a6e1<br /> 3c167a8b 547c8d28 e0a3ae1e 2bb3a675 916ea37f 0bfa2135 62f1fb62 7a01243b<br /> cca4f1be a8519089 a883dfe1 5ae59f06 928b665e 807b5525 64014c3b fecf492a<br /> y:<br /> ab67aa43 9e8ea5c8 904b1afe 89ae185a 4ef595cf ca9b9114 f05373dc 193cddd3<br /> baefb0f8 8bd858ea d78632c2 6481c9e0 a4f56878 8f4b0f10 d505ee57 4b1c7d5d<br /> 1196ddf0 1003578f 16272cb6 94f92796 57efd826 50287f9d b6f7e512 75fa4316<br /> 5961aef6 ba663ab8 81c57606 554e4fb6 830b9a7b ce32d5a3 a708d09b 3b6aa8ff<br /> Sun DSA Public Key<br /> Parameters:<br /> p:<br /> fd7f5381 1d751229 52df4a9c 2eece4e7 f611b752 3cef4400 c31e3f80 b6512669<br /> 455d4022 51fb593d 8d58fabf c5f5ba30 f6cb9b55 6cd7813b 801d346f f26660b7<br /> 6b9950a5 a49f9fe8 047b1022 c24fbba9 d7feb7c6 1bf83b57 e7c6a8a6 150f04fb<br /> 83f6d3c5 1ec30235 54135a16 9132f675 f3ae2b61 d72aeff2 2203199d d14801c7<br /> q:<br /> 9760508f 15230bcc b292b982 a2eb840b f0581cf5<br /> g:<br /> f7e1a085 d69b3dde cbbcab5c 36b857b9 7994afbb fa3aea82 f9574c0b 3d078267<br /> 5159578e bad4594f e6710710 8180b449 167123e8 4c281613 b7cf0932 8cc8a6e1<br /> 3c167a8b 547c8d28 e0a3ae1e 2bb3a675 916ea37f 0bfa2135 62f1fb62 7a01243b<br /> cca4f1be a8519089 a883dfe1 5ae59f06 928b665e 807b5525 64014c3b fecf492a<br /> y:<br /> ab67aa43 9e8ea5c8 904b1afe 89ae185a 4ef595cf ca9b9114 f05373dc 193cddd3<br /> baefb0f8 8bd858ea d78632c2 6481c9e0 a4f56878 8f4b0f10 d505ee57 4b1c7d5d<br /> 1196ddf0 1003578f 16272cb6 94f92796 57efd826 50287f9d b6f7e512 75fa4316<br /> 5961aef6 ba663ab8 81c57606 554e4fb6 830b9a7b ce32d5a3 a708d09b 3b6aa8ff<br /> */<br /> <br /> <br /> <br /> &lt;/source&gt;<br /> <br /> <br /> &lt;!-- end source code --&gt;<br /> <br /> <br /> <br /> <br /> <br /> == DSAPublicKeySpec: getY() ==<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> &lt;!-- start source code --&gt;<br /> <br /> &lt;source lang=&quot;java&quot;&gt;<br /> <br /> <br /> import java.io.FileInputStream;<br /> import java.io.FileOutputStream;<br /> import java.io.ObjectInputStream;<br /> import java.io.ObjectOutputStream;<br /> import java.math.BigInteger;<br /> import java.security.KeyFactory;<br /> import java.security.KeyPair;<br /> import java.security.KeyPairGenerator;<br /> import java.security.PublicKey;<br /> import java.security.SecureRandom;<br /> import java.security.spec.DSAPublicKeySpec;<br /> public class MainClass {<br /> public static void main(String args[]) throws Exception {<br /> KeyPairGenerator keyGen = KeyPairGenerator.getInstance(&quot;DSA&quot;);<br /> SecureRandom random = SecureRandom.getInstance(&quot;SHA1PRNG&quot;, &quot;SUN&quot;);<br /> random.setSeed(101L);<br /> keyGen.initialize(1024, random);<br /> KeyPair keypair = keyGen.generateKeyPair();<br /> KeyFactory kfactory = KeyFactory.getInstance(&quot;DSA&quot;);<br /> DSAPublicKeySpec kspec = (DSAPublicKeySpec) kfactory.getKeySpec(keypair.getPublic(),<br /> DSAPublicKeySpec.class);<br /> System.out.println(keypair.getPublic());<br /> FileOutputStream fos = new FileOutputStream(&quot;publicKeys&quot;);<br /> ObjectOutputStream oos = new ObjectOutputStream(fos);<br /> oos.writeObject(kspec.getY());<br /> oos.writeObject(kspec.getP());<br /> oos.writeObject(kspec.getQ());<br /> oos.writeObject(kspec.getG());<br /> FileInputStream fin = new FileInputStream(&quot;publicKeys&quot;);<br /> ObjectInputStream ois = new ObjectInputStream(fin);<br /> BigInteger Y = (BigInteger) ois.readObject();<br /> BigInteger P = (BigInteger) ois.readObject();<br /> BigInteger Q = (BigInteger) ois.readObject();<br /> BigInteger G = (BigInteger) ois.readObject();<br /> DSAPublicKeySpec keyspec = new DSAPublicKeySpec(Y, P, Q, G);<br /> PublicKey pkey = kfactory.generatePublic(keyspec);<br /> System.out.println(pkey);<br /> }<br /> }<br /> /*Sun DSA Public Key<br /> Parameters:<br /> p:<br /> fd7f5381 1d751229 52df4a9c 2eece4e7 f611b752 3cef4400 c31e3f80 b6512669<br /> 455d4022 51fb593d 8d58fabf c5f5ba30 f6cb9b55 6cd7813b 801d346f f26660b7<br /> 6b9950a5 a49f9fe8 047b1022 c24fbba9 d7feb7c6 1bf83b57 e7c6a8a6 150f04fb<br /> 83f6d3c5 1ec30235 54135a16 9132f675 f3ae2b61 d72aeff2 2203199d d14801c7<br /> q:<br /> 9760508f 15230bcc b292b982 a2eb840b f0581cf5<br /> g:<br /> f7e1a085 d69b3dde cbbcab5c 36b857b9 7994afbb fa3aea82 f9574c0b 3d078267<br /> 5159578e bad4594f e6710710 8180b449 167123e8 4c281613 b7cf0932 8cc8a6e1<br /> 3c167a8b 547c8d28 e0a3ae1e 2bb3a675 916ea37f 0bfa2135 62f1fb62 7a01243b<br /> cca4f1be a8519089 a883dfe1 5ae59f06 928b665e 807b5525 64014c3b fecf492a<br /> y:<br /> ab67aa43 9e8ea5c8 904b1afe 89ae185a 4ef595cf ca9b9114 f05373dc 193cddd3<br /> baefb0f8 8bd858ea d78632c2 6481c9e0 a4f56878 8f4b0f10 d505ee57 4b1c7d5d<br /> 1196ddf0 1003578f 16272cb6 94f92796 57efd826 50287f9d b6f7e512 75fa4316<br /> 5961aef6 ba663ab8 81c57606 554e4fb6 830b9a7b ce32d5a3 a708d09b 3b6aa8ff<br /> Sun DSA Public Key<br /> Parameters:<br /> p:<br /> fd7f5381 1d751229 52df4a9c 2eece4e7 f611b752 3cef4400 c31e3f80 b6512669<br /> 455d4022 51fb593d 8d58fabf c5f5ba30 f6cb9b55 6cd7813b 801d346f f26660b7<br /> 6b9950a5 a49f9fe8 047b1022 c24fbba9 d7feb7c6 1bf83b57 e7c6a8a6 150f04fb<br /> 83f6d3c5 1ec30235 54135a16 9132f675 f3ae2b61 d72aeff2 2203199d d14801c7<br /> q:<br /> 9760508f 15230bcc b292b982 a2eb840b f0581cf5<br /> g:<br /> f7e1a085 d69b3dde cbbcab5c 36b857b9 7994afbb fa3aea82 f9574c0b 3d078267<br /> 5159578e bad4594f e6710710 8180b449 167123e8 4c281613 b7cf0932 8cc8a6e1<br /> 3c167a8b 547c8d28 e0a3ae1e 2bb3a675 916ea37f 0bfa2135 62f1fb62 7a01243b<br /> cca4f1be a8519089 a883dfe1 5ae59f06 928b665e 807b5525 64014c3b fecf492a<br /> y:<br /> ab67aa43 9e8ea5c8 904b1afe 89ae185a 4ef595cf ca9b9114 f05373dc 193cddd3<br /> baefb0f8 8bd858ea d78632c2 6481c9e0 a4f56878 8f4b0f10 d505ee57 4b1c7d5d<br /> 1196ddf0 1003578f 16272cb6 94f92796 57efd826 50287f9d b6f7e512 75fa4316<br /> 5961aef6 ba663ab8 81c57606 554e4fb6 830b9a7b ce32d5a3 a708d09b 3b6aa8ff<br /> */<br /> <br /> <br /> <br /> &lt;/source&gt;<br /> <br /> <br /> &lt;!-- end source code --&gt;</div>

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