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| <div class="subTitle">org.apache.pirk.querier.wideskies.encrypt</div> |
| <h2 title="Class EncryptQuery" class="title">Class EncryptQuery</h2> |
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| <li>java.lang.Object</li> |
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| <pre>public class <span class="typeNameLabel">EncryptQuery</span> |
| extends java.lang.Object</pre> |
| <div class="block">Class to perform PIR encryption</div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/pirk/querier/wideskies/encrypt/EncryptQuery.html#EncryptQuery-org.apache.pirk.query.wideskies.QueryInfo-java.util.List-org.apache.pirk.encryption.Paillier-">EncryptQuery</a></span>(<a href="../../../../../../org/apache/pirk/query/wideskies/QueryInfo.html" title="class in org.apache.pirk.query.wideskies">QueryInfo</a> queryInfo, |
| java.util.List<java.lang.String> selectors, |
| <a href="../../../../../../org/apache/pirk/encryption/Paillier.html" title="class in org.apache.pirk.encryption">Paillier</a> paillier)</code> |
| <div class="block">Constructs a query encryptor using the given query information, selectors, and Paillier cryptosystem.</div> |
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| <td class="colFirst"><code><a href="../../../../../../org/apache/pirk/querier/wideskies/Querier.html" title="class in org.apache.pirk.querier.wideskies">Querier</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/pirk/querier/wideskies/encrypt/EncryptQuery.html#encrypt--">encrypt</a></span>()</code> |
| <div class="block">Encrypts the query described by the query information using Paillier encryption.</div> |
| </td> |
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| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/pirk/querier/wideskies/Querier.html" title="class in org.apache.pirk.querier.wideskies">Querier</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/pirk/querier/wideskies/encrypt/EncryptQuery.html#encrypt-int-">encrypt</a></span>(int numThreads)</code> |
| <div class="block">Encrypts the query described by the query information using Paillier encryption using the given number of threads.</div> |
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| <h4>EncryptQuery</h4> |
| <pre>public EncryptQuery(<a href="../../../../../../org/apache/pirk/query/wideskies/QueryInfo.html" title="class in org.apache.pirk.query.wideskies">QueryInfo</a> queryInfo, |
| java.util.List<java.lang.String> selectors, |
| <a href="../../../../../../org/apache/pirk/encryption/Paillier.html" title="class in org.apache.pirk.encryption">Paillier</a> paillier)</pre> |
| <div class="block">Constructs a query encryptor using the given query information, selectors, and Paillier cryptosystem.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>queryInfo</code> - Fundamental information about the query.</dd> |
| <dd><code>selectors</code> - the list of selectors for this query.</dd> |
| <dd><code>paillier</code> - the Paillier cryptosystem to use.</dd> |
| </dl> |
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| <a name="encrypt--"> |
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| <h4>encrypt</h4> |
| <pre>public <a href="../../../../../../org/apache/pirk/querier/wideskies/Querier.html" title="class in org.apache.pirk.querier.wideskies">Querier</a> encrypt() |
| throws java.lang.InterruptedException, |
| <a href="../../../../../../org/apache/pirk/utils/PIRException.html" title="class in org.apache.pirk.utils">PIRException</a></pre> |
| <div class="block">Encrypts the query described by the query information using Paillier encryption. |
| <p> |
| The encryption builds a <code>Querier</code> object, calculating and setting the query vectors. |
| <p> |
| Uses the system configured number of threads to conduct the encryption, or a single thread if the configuration has not been set.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The querier containing the query, and all information required to perform decryption.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.InterruptedException</code> - If the task was interrupted during encryption.</dd> |
| <dd><code><a href="../../../../../../org/apache/pirk/utils/PIRException.html" title="class in org.apache.pirk.utils">PIRException</a></code> - If a problem occurs performing the encryption.</dd> |
| </dl> |
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| <a name="encrypt-int-"> |
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| <h4>encrypt</h4> |
| <pre>public <a href="../../../../../../org/apache/pirk/querier/wideskies/Querier.html" title="class in org.apache.pirk.querier.wideskies">Querier</a> encrypt(int numThreads) |
| throws java.lang.InterruptedException, |
| <a href="../../../../../../org/apache/pirk/utils/PIRException.html" title="class in org.apache.pirk.utils">PIRException</a></pre> |
| <div class="block">Encrypts the query described by the query information using Paillier encryption using the given number of threads. |
| <p> |
| The encryption builds a <code>Querier</code> object, calculating and setting the query vectors. |
| <p> |
| If we have hash collisions over our selector set, we will append integers to the key starting with 0 until we no longer have collisions. |
| <p> |
| For encrypted query vector E = <E_0, ..., E_{(2^hashBitSize)-1}>: |
| <p> |
| E_i = 2^{j*dataPartitionBitSize} if i = H_k(selector_j) 0 otherwise</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>numThreads</code> - the number of threads to use when performing the encryption.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The querier containing the query, and all information required to perform decryption.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.InterruptedException</code> - If the task was interrupted during encryption.</dd> |
| <dd><code><a href="../../../../../../org/apache/pirk/utils/PIRException.html" title="class in org.apache.pirk.utils">PIRException</a></code> - If a problem occurs performing the encryption.</dd> |
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