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2013-08-29 20:12:06 -04:00

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<h2 title="Class SecurityUtils" class="title">Class SecurityUtils</h2>
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<pre>public class <span class="strong">SecurityUtils</span>
extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Static utility method relating to security facilities.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#BOUNCY_CASTLE">BOUNCY_CASTLE</a></strong></code>
<div class="block">Identifier for the BouncyCastle JCE provider</div>
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<td class="colOne"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#SecurityUtils()">SecurityUtils</a></strong>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/Cipher.html?is-external=true" title="class or interface in javax.crypto">Cipher</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getCipher(java.lang.String)">getCipher</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;transformation)</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getFingerprint(java.security.PublicKey)">getFingerprint</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/security/PublicKey.html?is-external=true" title="class or interface in java.security">PublicKey</a>&nbsp;key)</code>
<div class="block">Computes the fingerprint for a public key, in the standard SSH format, e.g.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/KeyAgreement.html?is-external=true" title="class or interface in javax.crypto">KeyAgreement</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getKeyAgreement(java.lang.String)">getKeyAgreement</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)</code>
<div class="block">Creates a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/KeyAgreement.html?is-external=true" title="class or interface in javax.crypto"><code>KeyAgreement</code></a> with the given algorithm.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyFactory.html?is-external=true" title="class or interface in java.security">KeyFactory</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getKeyFactory(java.lang.String)">getKeyFactory</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)</code>
<div class="block">Creates a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyFactory.html?is-external=true" title="class or interface in java.security"><code>KeyFactory</code></a> with the given algorithm.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyPairGenerator.html?is-external=true" title="class or interface in java.security">KeyPairGenerator</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getKeyPairGenerator(java.lang.String)">getKeyPairGenerator</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)</code>
<div class="block">Creates a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyPairGenerator.html?is-external=true" title="class or interface in java.security"><code>KeyPairGenerator</code></a> with the given algorithm.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/Mac.html?is-external=true" title="class or interface in javax.crypto">Mac</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getMAC(java.lang.String)">getMAC</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)</code>
<div class="block">Create a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/Mac.html?is-external=true" title="class or interface in javax.crypto"><code>Mac</code></a> with the given algorithm.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest.html?is-external=true" title="class or interface in java.security">MessageDigest</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getMessageDigest(java.lang.String)">getMessageDigest</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)</code>
<div class="block">Create a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest.html?is-external=true" title="class or interface in java.security"><code>MessageDigest</code></a> with the given algorithm.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getSecurityProvider()">getSecurityProvider</a></strong>()</code>
<div class="block">Get the identifier for the registered security provider.</div>
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<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/6/docs/api/java/security/Signature.html?is-external=true" title="class or interface in java.security">Signature</a></code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#getSignature(java.lang.String)">getSignature</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)</code>&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#isBouncyCastleRegistered()">isBouncyCastleRegistered</a></strong>()</code>
<div class="block">Attempts registering BouncyCastle as security provider if it has not been previously attempted and returns
whether the registration succeeded.</div>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#setRegisterBouncyCastle(boolean)">setRegisterBouncyCastle</a></strong>(boolean&nbsp;registerBouncyCastle)</code>&nbsp;</td>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../../net/schmizz/sshj/common/SecurityUtils.html#setSecurityProvider(java.lang.String)">setSecurityProvider</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;securityProvider)</code>
<div class="block">Specifies the JCE security provider that should be used.</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</a></code></li>
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<pre>public static final&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> BOUNCY_CASTLE</pre>
<div class="block">Identifier for the BouncyCastle JCE provider</div>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../constant-values.html#net.schmizz.sshj.common.SecurityUtils.BOUNCY_CASTLE">Constant Field Values</a></dd></dl>
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<pre>public&nbsp;SecurityUtils()</pre>
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<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/Cipher.html?is-external=true" title="class or interface in javax.crypto">Cipher</a>&nbsp;getCipher(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;transformation)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/NoSuchPaddingException.html?is-external=true" title="class or interface in javax.crypto">NoSuchPaddingException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></pre>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/NoSuchPaddingException.html?is-external=true" title="class or interface in javax.crypto">NoSuchPaddingException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></code></dd></dl>
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<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getFingerprint(<a href="http://docs.oracle.com/javase/6/docs/api/java/security/PublicKey.html?is-external=true" title="class or interface in java.security">PublicKey</a>&nbsp;key)</pre>
<div class="block">Computes the fingerprint for a public key, in the standard SSH format, e.g. "4b:69:6c:72:6f:79:20:77:61:73:20:68:65:72:65:21"</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>key</code> - the public key</dd>
<dt><span class="strong">Returns:</span></dt><dd>the fingerprint</dd><dt><span class="strong">See Also:</span></dt><dd><a href="http://tools.ietf.org/html/draft-friedl-secsh-fingerprint-00">specification</a></dd></dl>
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<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/KeyAgreement.html?is-external=true" title="class or interface in javax.crypto">KeyAgreement</a>&nbsp;getKeyAgreement(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></pre>
<div class="block">Creates a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/KeyAgreement.html?is-external=true" title="class or interface in javax.crypto"><code>KeyAgreement</code></a> with the given algorithm.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>algorithm</code> - key agreement algorithm</dd>
<dt><span class="strong">Returns:</span></dt><dd>new instance</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></code></dd></dl>
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<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyFactory.html?is-external=true" title="class or interface in java.security">KeyFactory</a>&nbsp;getKeyFactory(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></pre>
<div class="block">Creates a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyFactory.html?is-external=true" title="class or interface in java.security"><code>KeyFactory</code></a> with the given algorithm.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>algorithm</code> - key factory algorithm e.g. RSA, DSA</dd>
<dt><span class="strong">Returns:</span></dt><dd>new instance</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></code></dd></dl>
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<h4>getKeyPairGenerator</h4>
<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyPairGenerator.html?is-external=true" title="class or interface in java.security">KeyPairGenerator</a>&nbsp;getKeyPairGenerator(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></pre>
<div class="block">Creates a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/java/security/KeyPairGenerator.html?is-external=true" title="class or interface in java.security"><code>KeyPairGenerator</code></a> with the given algorithm.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>algorithm</code> - key pair generator algorithm</dd>
<dt><span class="strong">Returns:</span></dt><dd>new instance</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></code></dd></dl>
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<h4>getMAC</h4>
<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/Mac.html?is-external=true" title="class or interface in javax.crypto">Mac</a>&nbsp;getMAC(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></pre>
<div class="block">Create a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/javax/crypto/Mac.html?is-external=true" title="class or interface in javax.crypto"><code>Mac</code></a> with the given algorithm.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>algorithm</code> - MAC algorithm</dd>
<dt><span class="strong">Returns:</span></dt><dd>new instance</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></code></dd></dl>
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<h4>getMessageDigest</h4>
<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest.html?is-external=true" title="class or interface in java.security">MessageDigest</a>&nbsp;getMessageDigest(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></pre>
<div class="block">Create a new instance of <a href="http://docs.oracle.com/javase/6/docs/api/java/security/MessageDigest.html?is-external=true" title="class or interface in java.security"><code>MessageDigest</code></a> with the given algorithm.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>algorithm</code> - MessageDigest algorithm name</dd>
<dt><span class="strong">Returns:</span></dt><dd>new instance</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></code></dd></dl>
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<h4>getSecurityProvider</h4>
<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getSecurityProvider()</pre>
<div class="block">Get the identifier for the registered security provider.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>JCE provider identifier</dd></dl>
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<h4>getSignature</h4>
<pre>public static&nbsp;<a href="http://docs.oracle.com/javase/6/docs/api/java/security/Signature.html?is-external=true" title="class or interface in java.security">Signature</a>&nbsp;getSignature(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;algorithm)
throws <a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a>,
<a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></pre>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</a></code></dd>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/security/NoSuchProviderException.html?is-external=true" title="class or interface in java.security">NoSuchProviderException</a></code></dd></dl>
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<pre>public static&nbsp;boolean&nbsp;isBouncyCastleRegistered()</pre>
<div class="block">Attempts registering BouncyCastle as security provider if it has not been previously attempted and returns
whether the registration succeeded.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>whether BC registered</dd></dl>
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<pre>public static&nbsp;void&nbsp;setRegisterBouncyCastle(boolean&nbsp;registerBouncyCastle)</pre>
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<h4>setSecurityProvider</h4>
<pre>public static&nbsp;void&nbsp;setSecurityProvider(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;securityProvider)</pre>
<div class="block">Specifies the JCE security provider that should be used.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>securityProvider</code> - identifier for the security provider</dd></dl>
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