From 8e1355cf8b1dab96af720bb48608ac3b77caaeea Mon Sep 17 00:00:00 2001
From: Park JongHun <thesn515@gmail.com>
Date: Sat, 11 Jan 2025 12:47:34 +0900
Subject: [PATCH] feat: add base code for crypto

---
 .../infrastructure/key/KeyPair.kt                         | 3 +++
 .../infrastructure/key/PlatformBinaryData.kt              | 3 +++
 .../infrastructure/key/Cryptor.kt                         | 6 ++++++
 .../infrastructure/key/DigitalSignature.kt                | 8 ++++++++
 .../infrastructure/key/KeyPair.kt                         | 4 ++++
 .../infrastructure/key/KeyPairHandler.kt                  | 7 +++++++
 .../infrastructure/key/PlatformBinaryData.kt              | 4 ++++
 .../infrastructure/key/KeyPair.kt                         | 8 ++++++++
 .../infrastructure/key/PlatformBinaryData.kt              | 3 +++
 9 files changed, 46 insertions(+)
 create mode 100644 lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
 create mode 100644 lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
 create mode 100644 lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/Cryptor.kt
 create mode 100644 lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/DigitalSignature.kt
 create mode 100644 lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
 create mode 100644 lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPairHandler.kt
 create mode 100644 lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
 create mode 100644 lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
 create mode 100644 lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt

diff --git a/lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt b/lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
new file mode 100644
index 0000000..583a4f7
--- /dev/null
+++ b/lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
@@ -0,0 +1,3 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+actual typealias KeyPair = java.security.KeyPair
\ No newline at end of file
diff --git a/lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt b/lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
new file mode 100644
index 0000000..89257de
--- /dev/null
+++ b/lib/infrastructure/src/androidMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
@@ -0,0 +1,3 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+actual typealias PlatformBinaryData = kotlin.ByteArray
\ No newline at end of file
diff --git a/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/Cryptor.kt b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/Cryptor.kt
new file mode 100644
index 0000000..23295cf
--- /dev/null
+++ b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/Cryptor.kt
@@ -0,0 +1,6 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+interface Cryptor {
+    fun encrypt()
+    fun decrypt()
+}
\ No newline at end of file
diff --git a/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/DigitalSignature.kt b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/DigitalSignature.kt
new file mode 100644
index 0000000..3b61e2e
--- /dev/null
+++ b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/DigitalSignature.kt
@@ -0,0 +1,8 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+interface DigitalSignature {
+    fun sign(alias: String, data: ByteArray): PlatformBinaryData
+
+    // When receiving data, it is always received as something like Ktor, so this is sufficient as [ByteArray].
+    fun verify(alias: String, data: ByteArray): Boolean
+}
\ No newline at end of file
diff --git a/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
new file mode 100644
index 0000000..248b20f
--- /dev/null
+++ b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
@@ -0,0 +1,4 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+// TODO: Always catch up and migrate if it can be implemented only with Kotlin libraries.
+expect class KeyPair
\ No newline at end of file
diff --git a/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPairHandler.kt b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPairHandler.kt
new file mode 100644
index 0000000..84d1c30
--- /dev/null
+++ b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPairHandler.kt
@@ -0,0 +1,7 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+interface KeyPairHandler {
+    fun generateKeyPair(alias: String): KeyPair
+    fun obtainKeyPair(alias: String): KeyPair?
+    fun deleteKeyPair(alias: String): Boolean
+}
\ No newline at end of file
diff --git a/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
new file mode 100644
index 0000000..bc9183d
--- /dev/null
+++ b/lib/infrastructure/src/commonMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
@@ -0,0 +1,4 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+// TODO: Always catch up and migrate if it can be implemented only with Kotlin libraries.
+expect class PlatformBinaryData
\ No newline at end of file
diff --git a/lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt b/lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
new file mode 100644
index 0000000..1604a74
--- /dev/null
+++ b/lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/KeyPair.kt
@@ -0,0 +1,8 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+import kotlinx.cinterop.ExperimentalForeignApi
+
+actual typealias KeyPair = IosKeyPair
+
+@OptIn(ExperimentalForeignApi::class)
+class IosKeyPair(val secKeyRef: platform.Security.SecKeyRef)
\ No newline at end of file
diff --git a/lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt b/lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
new file mode 100644
index 0000000..067c7db
--- /dev/null
+++ b/lib/infrastructure/src/iosMain/kotlin/co/kr/parkjonghun/composemultiplatformtestairfield/infrastructure/key/PlatformBinaryData.kt
@@ -0,0 +1,3 @@
+package co.kr.parkjonghun.composemultiplatformtestairfield.infrastructure.key
+
+actual typealias PlatformBinaryData = platform.Foundation.NSData
\ No newline at end of file