SCS supports encryption. With this mechanism you can store your files in SCS with an encryption key that you provide.

Here you are a java example:

package es.jmu.testscsencrypt;
import java.util.UUID;
public class TestEncrypt {
public static void main(String[] args) {
try {
Long t0 = System.currentTimeMillis();
CloudStorageConfig myConfig = new CloudStorageConfig();
// I’m creating a new keypair for each execution for simplification
// keypair should be retrieved from a keystore where it was stored previously, obvoiously!
KeyPairGenerator keyGen = KeyPairGenerator.getInstance(“RSA”);
SecureRandom random = SecureRandom.getInstance(“SHA1PRNG”, “SUN”);
keyGen.initialize(2048, random);
KeyPair kp = keyGen.generateKeyPair();
EncryptedCloudStorage es = CloudStorageFactory.getEncryptedStorage(myConfig);
//open the file
File f = new File(args[0]);
Long mbs = f.length()/1024/1024;
System.out.println(“Subiendo fichero ” + args[0] + ” de tamaño ” + mbs + ” Mbytes”);
FileInputStream fis = new FileInputStream(f);
//store file up there
es.storeObject(“testencrypt”, UUID.randomUUID().toString(), “text/plain”, fis);
Long durasegs = (System.currentTimeMillis() – t0)/1000;
System.out.println(“Ratio transferencia: ” + mbs/durasegs + ” MB/seg”);

// at this point you can take a look to the file stored and you’ll see it is encrypted

//see figure I

// now let’s get the bytes downloaded

StorageInputStream sis = es.retrieveObject(“testencrypt”, f.getName());
byte [] churro = new byte[102400];
int l = 0;
while(l >= 0){
l =;
if( l > 0 )System.out.println(new String(churro));

// as you can see the file is cleartext, see figure II
} catch (Exception e) {

Figure I


Figure II


Enjoy it 😉


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