Jackson Crypto

Cryptographic utilities for Jackson.

Usage

To use this package from Maven, include the following dependency in your project:

<dependency>
  <groupId>com.meltmedia.jackson</groupId>
  <artifactId>jackson-crypto</artifactId>
  <version>0.2.0</version>
</dpendency>

Then create a new CryptoModule and register it with your ObjectMapper.

EncryptionService service = ...;
ObjectMapper mapper = ...;
mapper.registerModule(new CryptoModule().addSource(service));

Once this is done, you can use the @Encrypted annotation on your @JsonProperty annotated methods to encrypt them during serialization and decrypt them during deserialization. So, a POJO like the following:

public class Pojo {
  protected String secret;

  @JsonProperty
  @Encrypted
  public String getSecret() {
    return this.secret;
  }

  public void setSecret( String secret ) {
    this.secret = secret;
  }
}

will serialize into JSON like:

{
  "secret": {
    "salt": "tKD8wQ==",
    "iv": "s9hTJRaZn6fxxpA4nVfDag==",
    "value": "UZENJOltf+9EZS03AXbmeg==",
    "cipher": "aes-256-cbc",
    "keyDerivation": "pbkdf2",
    "keyLength": 256,
    "iterations": 2000
  }
}

Example

This project does not yet have its own example project, but you can see an example of using this library in the Dropwizard Crypto example project.