package civitas.crypto.sharedkey;
   
   import java.security.spec.InvalidKeySpecException;
   
   import javax.crypto.SecretKey;
   import javax.crypto.spec.SecretKeySpec;
   
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.stereotype.Controller;
  
  import civitas.crypto.Constants;
  import civitas.crypto.CryptoBase;
  import civitas.crypto.CryptoError;
  
  @Controller
  public class CreateSharedKeyFromBytes implements Constants {
  
  	@Autowired
  	CryptoBase cryptoBase;
  
  	public SecretKey apply(final byte[] bs) {
  		SecretKeySpec skeySpec = new SecretKeySpec(bs, SHARED_KEY_ALG);
  		try {
  			return cryptoBase.sharedKeyFactory.generateSecret(skeySpec);
  		} catch (InvalidKeySpecException e) {
  			throw new CryptoError(e);
  		}
  	}
  }