Added secretbox functions and constants

multiplatform-crypto-libsodium-bindings/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/secretbox/SecretBox.kt

@@ -0,0 +1,82 @@
+package com.ionspin.kotlin.crypto.secretbox
+
+import com.ionspin.kotlin.crypto.LibsodiumInitializer.sodium
+
+actual object SecretBox {
+    actual fun easy(message: UByteArray, nonce: UByteArray, key: UByteArray): UByteArray {
+        val ciphertext = UByteArray(message.size + crypto_secretbox_MACBYTES)
+        sodium.crypto_secretbox_easy(
+            ciphertext.asByteArray(),
+            message.asByteArray(),
+            message.size.toLong(),
+            nonce.asByteArray(),
+            key.asByteArray()
+        )
+        return ciphertext
+    }
+
+    actual fun openEasy(
+        ciphertext: UByteArray,
+        nonce: UByteArray,
+        key: UByteArray
+    ): UByteArray {
+        val decrypted = UByteArray(ciphertext.size - crypto_secretbox_MACBYTES)
+        val validationResult = sodium.crypto_secretbox_open_easy(
+            decrypted.asByteArray(),
+            ciphertext.asByteArray(),
+            ciphertext.size.toLong(),
+            nonce.asByteArray(),
+            key.asByteArray()
+            )
+        if (validationResult != 0) {
+            throw SecretBoxCorruptedOrTamperedDataExceptionOrInvalidKey()
+        }
+        return decrypted
+    }
+
+    actual fun detached(
+        message: UByteArray,
+        nonce: UByteArray,
+        key: UByteArray
+    ): SecretBoxEncryptedDataAndTag {
+        val ciphertext = UByteArray(message.size)
+        val authenticationTag = UByteArray(crypto_secretbox_MACBYTES)
+        sodium.crypto_secretbox_detached(
+            ciphertext.asByteArray(),
+            authenticationTag.asByteArray(),
+            message.asByteArray(),
+            message.size.toLong(),
+            nonce.asByteArray(),
+            key.asByteArray()
+        )
+        return SecretBoxEncryptedDataAndTag(ciphertext, authenticationTag)
+    }
+
+    actual fun openDetached(
+        ciphertext: UByteArray,
+        tag: UByteArray,
+        nonce: UByteArray,
+        key: UByteArray
+    ): UByteArray {
+        val message = UByteArray(ciphertext.size)
+        val validationResult = sodium.crypto_secretbox_open_detached(
+            message.asByteArray(),
+            ciphertext.asByteArray(),
+            tag.asByteArray(),
+            ciphertext.size.toLong(),
+            nonce.asByteArray(),
+            key.asByteArray()
+        )
+        if (validationResult != 0) {
+            throw SecretBoxCorruptedOrTamperedDataExceptionOrInvalidKey()
+        }
+        return message
+    }
+
+    actual fun keygen() : UByteArray {
+        val generatedKey = UByteArray(crypto_secretbox_KEYBYTES)
+        sodium.crypto_secretbox_keygen(generatedKey.asByteArray())
+        return generatedKey
+    }
+
+}

multiplatform-crypto-libsodium-bindings/src/jvmMain/kotlin/com/ionspin/kotlin/crypto/secretstream/SecretStreamJvm.kt

@@ -49,7 +49,7 @@ actual object SecretStream {
     ): DecryptedDataAndTag {
         val result = UByteArray(ciphertext.size - crypto_secretstream_xchacha20poly1305_ABYTES)
         val tagArray = UByteArray(1) { 0U }
-        sodium.crypto_secretstream_xchacha20poly1305_pull(
+        val validationResult = sodium.crypto_secretstream_xchacha20poly1305_pull(
             state,
             result.asByteArray(),
             null,
@@ -59,11 +59,14 @@ actual object SecretStream {
             additionalData.asByteArray(),
             additionalData.size.toLong()
         )
+        if (validationResult != 0) {
+            throw SecretStreamCorrupedOrTamperedDataException()
+        }
         return DecryptedDataAndTag(result, tagArray[0])
     }
 
     actual fun xChaCha20Poly1305Keygen(): UByteArray {
-        val generatedKey = UByteArray(crypto_aead_xchacha20poly1305_ietf_KEYBYTES)
+        val generatedKey = UByteArray(crypto_secretstream_xchacha20poly1305_KEYBYTES)
         sodium.crypto_secretstream_xchacha20poly1305_keygen(generatedKey.asByteArray())
         return generatedKey
     }