This example contains two parts: simple AcraStructs generation, which can be done locally, and decryption using AcraTranslator via HTTP API. For this purpose, AcraConnector and AcraTranslator should be up and running.
See a verbose explanation of what is AcraTranslator and how to run it in AcraTranslator docs.
Please run project from Acra repository. Run MainActivityAcraStructExample.
This example depends on acrawriter library, which is installed via maven. We use bintray to distribute it.
First, update your build.gradle file with URL to our maven repository:
repositories {
// whatever you have here, add maven
maven { url "https://dl.bintray.com/cossacklabs/maven/" }
}
Then link acrawriter from app/build.gradle file:
dependencies {
// ....
implementation 'com.cossacklabs.com:acrawriter:1.0.1'
}
And that's all!
Under the hood, AcraWriter depends on Themis, which depends on OpenSSL, but you don't need to install them separately.
Please update AcraStrorage Public key to yours:
import com.cossacklabs.acrawriter.AcraStruct;
import com.cossacklabs.acrawriter.AcraWriter;
String message = "hello message";
String acraTranslatorPublicKey = "VUVDMgAAAC240mpnAx8FSrZxhVNPsnhhZFYAm0+ARiRDdXPKAW0vI/2AY0QM";
PublicKey publicKey = new PublicKey(Base64.decode(acraTranslatorPublicKey.getBytes(), Base64.NO_WRAP));
AcraWriter aw = new AcraWriter();
AcraStruct acraStruct = aw.createAcraStruct(message.getBytes(), publicKey, null);Please update AcraStrorage Zone Public key to yours:
import com.cossacklabs.acrawriter.AcraStruct;
import com.cossacklabs.acrawriter.AcraWriter;
String message = "zone hello message";
String zoneID = "DDDDDDDDbBnbDdyQhsIKDHmg";
String acraTranslatorZoneKey = "VUVDMgAAAC0a1L6iAj46qMJ7eofpjF2h/+u+uItIvpyvZcNW+5enohvCIY6G";
PublicKey publicKey = new PublicKey(Base64.decode(acraTranslatorZoneKey.getBytes(), Base64.NO_WRAP));
AcraWriter aw = new AcraWriter();
AcraStruct acraStruct = aw.createAcraStruct(message.getBytes(), publicKey, zoneID.getBytes());