Transparent Data Encryption

<bean class="org.apache.ignite.configuration.IgniteConfiguration">
    <!-- We need to configure EncryptionSpi to enable encryption feature. -->
    <property name="encryptionSpi">
        <!-- Using EncryptionSpi implementation based on java keystore. -->
        <bean class="org.apache.ignite.spi.encryption.keystore.KeystoreEncryptionSpi">
            <!-- Path to the keystore file. -->
            <property name="keyStorePath" value="ignite_keystore.jks"/>
            <!-- Password for keystore file. -->
            <property name="keyStorePassword" value="mypassw0rd"/>
            <!-- Name of the key in keystore to be used as a master key. -->
            <property name="masterKeyName" value="ignite.master.key"/>
            <!-- Size of the cache encryption keys in bits. Can be 128, 192, or 256 bits.-->
            <property name="keySize" value="256"/>
        </bean>
    </property>
    <property name="cacheConfiguration">
        <bean class="org.apache.ignite.configuration.CacheConfiguration">
            <property name="name" value="encrypted-cache"/>
            <property name="encryptionEnabled" value="true"/>
        </bean>
    </property>
    <property name="dataStorageConfiguration">
        <bean class="org.apache.ignite.configuration.DataStorageConfiguration">
            <property name="encryptionConfiguration">
                <bean class="org.apache.ignite.configuration.EncryptionConfiguration">
                    <!-- Set re-encryption rate limit to 10.3 MB/s. -->
                    <property name="reencryptionRateLimit" value="10.3"/>
                </bean>
            </property>
        </bean>
    </property>
</bean>

IgniteConfiguration cfg = new IgniteConfiguration();

KeystoreEncryptionSpi encSpi = new KeystoreEncryptionSpi();

encSpi.setKeyStorePath("/home/user/ignite-keystore.jks");
encSpi.setKeyStorePassword("secret".toCharArray());

cfg.setEncryptionSpi(encSpi);

This API is not presently available for C++. You can use XML configuration.

<property name="cacheConfiguration">
    <bean class="org.apache.ignite.configuration.CacheConfiguration">
        <property name="name" value="encrypted-cache"/>
        <property name="encryptionEnabled" value="true"/>
    </bean>
</property>

CacheConfiguration<Long, String> ccfg = new CacheConfiguration<Long, String>("encrypted-cache");

ccfg.setEncryptionEnabled(true);

ignite.createCache(ccfg);

CREATE TABLE encrypted(
  ID BIGINT,
  NAME VARCHAR(10),
  PRIMARY KEY (ID))
WITH "ENCRYPTED=true";