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| <h2 title="Class AbstractDH" class="title">Class AbstractDH</h2> |
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| <dd><a href="../../../../../org/apache/sshd/common/kex/DHG.html" title="class in org.apache.sshd.common.kex">DHG</a>, <a href="../../../../../org/apache/sshd/common/kex/ECDH.html" title="class in org.apache.sshd.common.kex">ECDH</a></dd> |
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| <pre>public abstract class <span class="typeNameLabel">AbstractDH</span> |
| extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Base class for the Diffie-Hellman key agreement.</div> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math">BigInteger</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sshd/common/kex/AbstractDH.html#k">k</a></span></code> </td> |
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| <td class="colFirst"><code>protected abstract byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sshd/common/kex/AbstractDH.html#calculateK--">calculateK</a></span>()</code> </td> |
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| <td class="colFirst"><code>abstract byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sshd/common/kex/AbstractDH.html#getE--">getE</a></span>()</code> </td> |
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| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>abstract <a href="../../../../../org/apache/sshd/common/digest/Digest.html" title="interface in org.apache.sshd.common.digest">Digest</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sshd/common/kex/AbstractDH.html#getHash--">getHash</a></span>()</code> </td> |
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| <td class="colFirst"><code>byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sshd/common/kex/AbstractDH.html#getK--">getK</a></span>()</code> </td> |
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| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sshd/common/kex/AbstractDH.html#setF-byte:A-">setF</a></span>(byte[] e)</code> </td> |
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| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sshd/common/kex/AbstractDH.html#stripLeadingZeroes-byte:A-">stripLeadingZeroes</a></span>(byte[] x)</code> |
| <div class="block">The shared secret returned by <a href="http://docs.oracle.com/javase/7/docs/api/javax/crypto/KeyAgreement.html?is-external=true#generateSecret--" title="class or interface in javax.crypto"><code>KeyAgreement.generateSecret()</code></a> |
| is a byte array, which can (by chance, roughly 1 out of 256 times) begin |
| with zero byte (some JCE providers might strip this, though).</div> |
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| <h4>k</h4> |
| <pre>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/math/BigInteger.html?is-external=true" title="class or interface in java.math">BigInteger</a> k</pre> |
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| <pre>protected AbstractDH()</pre> |
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| <dl> |
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| <dl> |
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| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <pre>public byte[] getK() |
| throws <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <dl> |
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| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <pre>public abstract <a href="../../../../../org/apache/sshd/common/digest/Digest.html" title="interface in org.apache.sshd.common.digest">Digest</a> getHash() |
| throws <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a></code></dd> |
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| <h4>stripLeadingZeroes</h4> |
| <pre>public static byte[] stripLeadingZeroes(byte[] x)</pre> |
| <div class="block">The shared secret returned by <a href="http://docs.oracle.com/javase/7/docs/api/javax/crypto/KeyAgreement.html?is-external=true#generateSecret--" title="class or interface in javax.crypto"><code>KeyAgreement.generateSecret()</code></a> |
| is a byte array, which can (by chance, roughly 1 out of 256 times) begin |
| with zero byte (some JCE providers might strip this, though). In SSH, |
| the shared secret is an integer, so we need to strip the leading zero(es).</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>x</code> - The original array</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>An (possibly) sub-array guaranteed to start with a non-zero byte</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - If all zeroes array</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><A HREF="https://issues.apache.org/jira/browse/SSHD-330">SSHD-330</A></dd> |
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