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Java/Security/MAC - История изменений
2026-04-23T03:28:48Z
История изменений этой страницы в вики
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Admin: 1 версия
2010-06-01T06:49:21Z
<p>1 версия</p>
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<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 06:49, 1 июня 2010</td>
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Admin
http://www.jexp.ru/index.php?title=Java/Security/MAC&diff=7642&oldid=prev
в 18:01, 31 мая 2010
2010-05-31T18:01:45Z
<p></p>
<p><b>Новая страница</b></p><div>== Generating a Message Authentication Code (MAC) ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
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import javax.crypto.KeyGenerator;<br />
import javax.crypto.Mac;<br />
import javax.crypto.SecretKey;<br />
public class Main {<br />
public static void main(String[] argv) throws Exception {<br />
KeyGenerator keyGen = KeyGenerator.getInstance("HmacMD5");<br />
SecretKey key = keyGen.generateKey();<br />
Mac mac = Mac.getInstance(key.getAlgorithm());<br />
mac.init(key);<br />
String str = "This message will be digested";<br />
byte[] utf8 = str.getBytes("UTF8");<br />
byte[] digest = mac.doFinal(utf8);<br />
String digestB64 = new sun.misc.BASE64Encoder().encode(digest);<br />
System.out.println(digestB64);<br />
}<br />
}<br />
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</source><br />
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<!-- end source code --><br />
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== Generating a Message Authentication Code (MAC) Key ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
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import javax.crypto.KeyGenerator;<br />
import javax.crypto.SecretKey;<br />
public class Main {<br />
public static void main(String[] argv) throws Exception {<br />
KeyGenerator keyGen = KeyGenerator.getInstance("HmacMD5");<br />
SecretKey key = keyGen.generateKey();<br />
// Generate a key for the HMAC-SHA1 keyed-hashing algorithm<br />
keyGen = KeyGenerator.getInstance("HmacSHA1");<br />
key = keyGen.generateKey();<br />
}<br />
}<br />
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</source><br />
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<!-- end source code --></div>