From 13a880cc73d62a8f10ab2d0ecc7c2f641a1b2db9 Mon Sep 17 00:00:00 2001
From: Ugljesa Jovanovic <ugljesa.jovanovic@ionspin.com>
Date: Thu, 6 Oct 2022 10:44:54 +0200
Subject: [PATCH] Bump sample to use latest snapshot and add some
 encryption/decryption to binary

---
 buildSrc/src/main/kotlin/Deps.kt                 |  2 +-
 .../com/ionspin/kotlin/crypto/sample/Sample.kt   | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/buildSrc/src/main/kotlin/Deps.kt b/buildSrc/src/main/kotlin/Deps.kt
index 4ef3b35..608170d 100644
--- a/buildSrc/src/main/kotlin/Deps.kt
+++ b/buildSrc/src/main/kotlin/Deps.kt
@@ -25,7 +25,7 @@ object Versions {
     val kotlinBigNumVersion = "0.3.7"
     val jna = "5.10.0"
     val kotlinPoet = "1.6.0"
-    val sampleLibsodiumBindings = "0.8.5-SNAPSHOT"
+    val sampleLibsodiumBindings = "0.8.8-SNAPSHOT"
     val ktor = "1.3.2"
     val timber = "4.7.1"
     val kodeinVersion = "7.1.0"
diff --git a/sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/Sample.kt b/sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/Sample.kt
index 2e4fb1f..43b38a0 100644
--- a/sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/Sample.kt
+++ b/sample/src/commonMain/kotlin/com/ionspin/kotlin/crypto/sample/Sample.kt
@@ -1,5 +1,7 @@
 package com.ionspin.kotlin.crypto.sample
 
+import com.ionspin.kotlin.crypto.aead.AuthenticatedEncryptionWithAssociatedData
+import com.ionspin.kotlin.crypto.aead.crypto_aead_xchacha20poly1305_ietf_NPUBBYTES
 import com.ionspin.kotlin.crypto.hash.Hash
 import com.ionspin.kotlin.crypto.util.LibsodiumRandom
 import com.ionspin.kotlin.crypto.util.encodeToUByteArray
@@ -10,10 +12,24 @@ object Sample {
     fun runSample() {
         val random = LibsodiumRandom.buf(32)
         println("Random: ${random.toHexString()}")
+        println("Hashed 123 ${hashSomething()}")
+        encryptThenDecrypt()
     }
 
     fun hashSomething() : String {
         val hash = Hash.sha512("123".encodeToUByteArray())
         return "Hash (SHA512) of 123: ${hash.toHexString()}"
     }
+
+    fun encryptThenDecrypt() {
+        val data = LibsodiumRandom.buf(2048)
+        val associatedData = LibsodiumRandom.buf(256)
+        val key = AuthenticatedEncryptionWithAssociatedData.xChaCha20Poly1305IetfKeygen()
+        val nonce = LibsodiumRandom.buf(crypto_aead_xchacha20poly1305_ietf_NPUBBYTES)
+        val encrypted = AuthenticatedEncryptionWithAssociatedData.xChaCha20Poly1305IetfEncrypt(data, associatedData, nonce, key)
+        println("Original data ${data.toHexString()}")
+        println("Encrypted ${encrypted.toHexString()}")
+        val decrypted = AuthenticatedEncryptionWithAssociatedData.xChaCha20Poly1305IetfDecrypt(encrypted, associatedData, nonce, key)
+        println("Decrypted ${decrypted.toHexString()}")
+    }
 }