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<a href="#pub-methods">Public Member Functions</a> |
<a href="#pub-static-methods">Static Public Member Functions</a> |
<a href="#pro-attribs">Protected Attributes</a> |
<a href="classRSAKey-members.html">List of all members</a> </div>
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<div class="title">RSAKey Class Reference</div> </div>
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<p>RSA public/private key-pair encryption class.
<a href="classRSAKey.html#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a2a1894882100da6c8c70f8911089ef4d"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a2a1894882100da6c8c70f8911089ef4d">RSAKey</a> ()</td></tr>
<tr class="memdesc:a2a1894882100da6c8c70f8911089ef4d"><td class="mdescLeft"> </td><td class="mdescRight">Creates a null key object. <a href="#a2a1894882100da6c8c70f8911089ef4d">More...</a><br /></td></tr>
<tr class="separator:a2a1894882100da6c8c70f8911089ef4d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8658a7cfe77c3565033efbd6706ee6ae"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a8658a7cfe77c3565033efbd6706ee6ae">RSAKey</a> (const <a class="el" href="classString.html">String</a> &stringRepresentation)</td></tr>
<tr class="memdesc:a8658a7cfe77c3565033efbd6706ee6ae"><td class="mdescLeft"> </td><td class="mdescRight">Loads a key from an encoded string representation. <a href="#a8658a7cfe77c3565033efbd6706ee6ae">More...</a><br /></td></tr>
<tr class="separator:a8658a7cfe77c3565033efbd6706ee6ae"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4ae206fafb656769aaea335383a4ffec"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a4ae206fafb656769aaea335383a4ffec">~RSAKey</a> ()</td></tr>
<tr class="memdesc:a4ae206fafb656769aaea335383a4ffec"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#a4ae206fafb656769aaea335383a4ffec">More...</a><br /></td></tr>
<tr class="separator:a4ae206fafb656769aaea335383a4ffec"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a55cc9849996cb7b296ddf58f412113e4"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a55cc9849996cb7b296ddf58f412113e4">operator==</a> (const <a class="el" href="classRSAKey.html">RSAKey</a> &other) const noexcept</td></tr>
<tr class="separator:a55cc9849996cb7b296ddf58f412113e4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a65d813bd3797f247f969714354158c7c"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a65d813bd3797f247f969714354158c7c">operator!=</a> (const <a class="el" href="classRSAKey.html">RSAKey</a> &other) const noexcept</td></tr>
<tr class="separator:a65d813bd3797f247f969714354158c7c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab48f11797337738028daf6e6997c7e22"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classString.html">String</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#ab48f11797337738028daf6e6997c7e22">toString</a> () const</td></tr>
<tr class="memdesc:ab48f11797337738028daf6e6997c7e22"><td class="mdescLeft"> </td><td class="mdescRight">Turns the key into a string representation. <a href="#ab48f11797337738028daf6e6997c7e22">More...</a><br /></td></tr>
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<tr class="memitem:a898ca7521354c74d24ace4689b983f98"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a898ca7521354c74d24ace4689b983f98">isValid</a> () const noexcept</td></tr>
<tr class="memdesc:a898ca7521354c74d24ace4689b983f98"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the object is a valid key, or false if it was created by the default constructor. <a href="#a898ca7521354c74d24ace4689b983f98">More...</a><br /></td></tr>
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<tr class="memitem:a71507d7a01f767e2734b7038e1356568"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a71507d7a01f767e2734b7038e1356568">applyToValue</a> (<a class="el" href="classBigInteger.html">BigInteger</a> &value) const</td></tr>
<tr class="memdesc:a71507d7a01f767e2734b7038e1356568"><td class="mdescLeft"> </td><td class="mdescRight">Encodes or decodes a value. <a href="#a71507d7a01f767e2734b7038e1356568">More...</a><br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a8d69fca3bd9748a5c455f92f6da0dc6a"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a8d69fca3bd9748a5c455f92f6da0dc6a">createKeyPair</a> (<a class="el" href="classRSAKey.html">RSAKey</a> &publicKey, <a class="el" href="classRSAKey.html">RSAKey</a> &privateKey, int numBits, const int *randomSeeds=nullptr, int numRandomSeeds=0)</td></tr>
<tr class="memdesc:a8d69fca3bd9748a5c455f92f6da0dc6a"><td class="mdescLeft"> </td><td class="mdescRight">Creates a public/private key-pair. <a href="#a8d69fca3bd9748a5c455f92f6da0dc6a">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pro-attribs"></a>
Protected Attributes</h2></td></tr>
<tr class="memitem:af9992df31573da04eff2f95b6c215be1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classBigInteger.html">BigInteger</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#af9992df31573da04eff2f95b6c215be1">part1</a></td></tr>
<tr class="separator:af9992df31573da04eff2f95b6c215be1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8f404bb892955099f1495922fe43e0f8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classBigInteger.html">BigInteger</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classRSAKey.html#a8f404bb892955099f1495922fe43e0f8">part2</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>RSA public/private key-pair encryption class. </p>
<p>An object of this type makes up one half of a public/private RSA key pair. Use the <a class="el" href="classRSAKey.html#a8d69fca3bd9748a5c455f92f6da0dc6a" title="Creates a public/private key-pair. ">createKeyPair()</a> method to create a matching pair for encoding/decoding.</p>
<p>If you need to use this class in conjunction with a compatible enc/decryption algorithm on a webserver, you can achieve the same thing in PHP like this:</p>
<div class="fragment"><div class="line">include (<span class="stringliteral">'Math/BigInteger.php'</span>); <span class="comment">// get this from: phpseclib.sourceforge.net</span></div><div class="line"></div><div class="line"><span class="keyword">function</span> <a class="code" href="classRSAKey.html#a71507d7a01f767e2734b7038e1356568">applyToValue</a> ($message, $key_part1, $key_part2)</div><div class="line">{</div><div class="line"> $result = <span class="keyword">new</span> Math_BigInteger();</div><div class="line"> $zero = <span class="keyword">new</span> Math_BigInteger();</div><div class="line"> $value = <span class="keyword">new</span> Math_BigInteger (strrev ($message), 256);</div><div class="line"> $part1 = <span class="keyword">new</span> Math_BigInteger ($key_part1, 16);</div><div class="line"> $part2 = <span class="keyword">new</span> Math_BigInteger ($key_part2, 16);</div><div class="line"></div><div class="line"> <span class="keywordflow">while</span> (! $value->equals ($zero))</div><div class="line"> {</div><div class="line"> $result = $result->multiply ($part2);</div><div class="line"> list ($value, $remainder) = $value->divide ($part2);</div><div class="line"> $result = $result->add ($remainder->modPow ($part1, $part2));</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keywordflow">return</span> strrev ($result->toBytes());</div><div class="line">}</div></div><!-- fragment --><p>..or in Java with something like this:</p>
<div class="fragment"><div class="line"><span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="classRSAKey.html">RSAKey</a></div><div class="line">{</div><div class="line"> <span class="keyword">static</span> <a class="code" href="classBigInteger.html">BigInteger</a> <a class="code" href="classRSAKey.html#a71507d7a01f767e2734b7038e1356568">applyToValue</a> (<a class="code" href="classBigInteger.html">BigInteger</a> value, <a class="code" href="classString.html">String</a> key_part1, <a class="code" href="classString.html">String</a> key_part2)</div><div class="line"> {</div><div class="line"> <a class="code" href="classBigInteger.html">BigInteger</a> result = <a class="code" href="classBigInteger.html">BigInteger</a>.ZERO;</div><div class="line"> <a class="code" href="classBigInteger.html">BigInteger</a> <a class="code" href="classRSAKey.html#af9992df31573da04eff2f95b6c215be1">part1</a> = <span class="keyword">new</span> <a class="code" href="classBigInteger.html">BigInteger</a> (key_part1, 16);</div><div class="line"> <a class="code" href="classBigInteger.html">BigInteger</a> <a class="code" href="classRSAKey.html#a8f404bb892955099f1495922fe43e0f8">part2</a> = <span class="keyword">new</span> <a class="code" href="classBigInteger.html">BigInteger</a> (key_part2, 16);</div><div class="line"></div><div class="line"> <span class="keywordflow">if</span> (part1.equals (<a class="code" href="classBigInteger.html">BigInteger</a>.ZERO) || part2.equals (<a class="code" href="classBigInteger.html">BigInteger</a>.ZERO)</div><div class="line"> || value.compareTo (<a class="code" href="classBigInteger.html">BigInteger</a>.ZERO) <= 0)</div><div class="line"> <span class="keywordflow">return</span> result;</div><div class="line"></div><div class="line"> <span class="keywordflow">while</span> (! value.equals (<a class="code" href="classBigInteger.html">BigInteger</a>.ZERO))</div><div class="line"> {</div><div class="line"> result = result.multiply (part2);</div><div class="line"> <a class="code" href="classBigInteger.html">BigInteger</a>[] div = value.divideAndRemainder (part2);</div><div class="line"> value = div[0];</div><div class="line"> result = result.add (div[1].modPow (part1, part2));</div><div class="line"> }</div><div class="line"></div><div class="line"> <span class="keywordflow">return</span> result;</div><div class="line"> }</div><div class="line">}</div></div><!-- fragment --><p>Disclaimer: neither of the code snippets above are tested! Please let me know if you have any corrections for them! </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<p>Creates a null key object. </p>
<p>Initialise a pair of objects for use with the <a class="el" href="classRSAKey.html#a8d69fca3bd9748a5c455f92f6da0dc6a" title="Creates a public/private key-pair. ">createKeyPair()</a> method. </p>
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<td class="memname">RSAKey::RSAKey </td>
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<td class="paramtype">const <a class="el" href="classString.html">String</a> & </td>
<td class="paramname"><em>stringRepresentation</em></td><td>)</td>
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<p>Loads a key from an encoded string representation. </p>
<p>This reloads a key from a string created by the <a class="el" href="classRSAKey.html#ab48f11797337738028daf6e6997c7e22" title="Turns the key into a string representation. ">toString()</a> method. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4ae206fafb656769aaea335383a4ffec">§ </a></span>~RSAKey()</h2>
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<p>Destructor. </p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a55cc9849996cb7b296ddf58f412113e4">§ </a></span>operator==()</h2>
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<p>Turns the key into a string representation. </p>
<p>This can be reloaded using the constructor that takes a string. </p>
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<p>Returns true if the object is a valid key, or false if it was created by the default constructor. </p>
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<p>Encodes or decodes a value. </p>
<p>Call this on the public key object to encode some data, then use the matching private key object to decode it.</p>
<p>Returns false if the operation couldn't be completed, e.g. if this key hasn't been initialised correctly.</p>
<p>NOTE: This method dumbly applies this key to this data. If you encode some data and then try to decode it with a key that doesn't match, this method will still happily do its job and return true, but the result won't be what you were expecting. It's your responsibility to check that the result is what you wanted. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8d69fca3bd9748a5c455f92f6da0dc6a">§ </a></span>createKeyPair()</h2>
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<td class="memname">static void RSAKey::createKeyPair </td>
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<td class="paramtype"><a class="el" href="classRSAKey.html">RSAKey</a> & </td>
<td class="paramname"><em>publicKey</em>, </td>
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<td class="paramtype"><a class="el" href="classRSAKey.html">RSAKey</a> & </td>
<td class="paramname"><em>privateKey</em>, </td>
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<td class="paramtype">int </td>
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<td class="paramtype">const int * </td>
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<td class="paramtype">int </td>
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<p>Creates a public/private key-pair. </p>
<p>Each key will perform one-way encryption that can only be reversed by using the other key.</p>
<p>The numBits parameter specifies the size of key, e.g. 128, 256, 512 bit. Bigger sizes are more secure, but this method will take longer to execute.</p>
<p>The randomSeeds parameter lets you optionally pass it a set of values with which to seed the random number generation, improving the security of the keys generated. If you supply these, make sure you provide more than 2 values, and the more your provide, the better the security. </p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#af9992df31573da04eff2f95b6c215be1">§ </a></span>part1</h2>
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<td class="memname"><a class="el" href="classBigInteger.html">BigInteger</a> RSAKey::part1</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a8f404bb892955099f1495922fe43e0f8">§ </a></span>part2</h2>
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<td class="memname"><a class="el" href="classBigInteger.html">BigInteger</a> RSAKey::part2</td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="juce__RSAKey_8h.html">juce_RSAKey.h</a></li>
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