hal

Hal is a library for symmetrical encryption. Hal is implemented in Clojure, designed to be used from either Clojure or Java.

Usage

Clojure

[hal "0.1.0"]

For symmetrical encryption needs, see the encrypt and decrypt functions in the hal.core namespace.

For web-tokens, see the hal.token namespace, in particular the mint and decrypt functions.

NOTE: The input data for a token must be a {} with only String keys, and values must be Strings, numbers, java.util.Dates, or org.joda.time.DateTimes.

Example token mint and decrypt at REPL:

(hal.token/mint {"a" 1})
=> "WgSBV2nutwxN0FqVK038Go69YC8Er9UZfwn6HJnwNpU="
(hal.token/decrypt "WgSBV2nutwxN0FqVK038Go69YC8Er9UZfwn6HJnwNpU=")
=> {"a" 1}

Java

Maven dependency information:

<dependency>
  <groupId>org.purefn</groupId>
  <artifactId>hal</artifactId>
  <version>0.1.0</version>
</dependency>

A Java class org.purefn.Token is exposed from the hal.token namespace, it has two static methods: .mint(Map<String, ?>) and .decrypt(String)

NOTE: The input data for a token must be a Map with only String keys, and values must be Strings, numbers, java.util.Dates, or org.joda.time.DateTimes.

import org.purefn.Token;

public class Main {
  public static void main(String[] args) {

      HashMap<String, ?> tokenData = new HashMap<>();
      tokenData.put("id1", "12345");
      tokenData.put("id2", "67890");


      String minted = org.purefn.Token.mint(tokenData); //calling the static method mint

      System.out.println(minted);

      HashMap<String, ?> decrypted = org.purefn.Token.decrypt(minted); //calling the static method decrypt

      System.out.println(decrypted);
  }
}

Development

Specs

Several specs for tokens and the token fns exist in the hal.token namespace.

Tests

Check out the hal.core-test namespace.

Sql UUIDs (type 6 UUID)

import java.util.UUID;
import org.purefn.Type6UUID;

public class HalUUIDTest {

  public static void main(String[] args) {
      UUID uuid = Type6UUID.type6("my_table", 255);
      System.out.println(uuid);

      String table = Type6UUID.table(uuid);
      System.out.println(table);

      Integer id = Type6UUID.id(uuid);
      System.out.println(id);
  }
}