Fix decryption issue when key without passphrase set

passKitTests/Crypto/CryptoFrameworkTest.swift

@@ -39,6 +39,7 @@ class CryptoFrameworkTest: XCTestCase {
         try [
             RSA2048,
             RSA2048_SUB,
+            RSA3072_NO_PASSPHRASE,
             RSA4096,
             RSA4096_SUB,
             ED25519,
@@ -55,7 +56,14 @@ class CryptoFrameworkTest: XCTestCase {
             XCTAssert(publicKey.getHexKeyID().hasSuffix(testKeyInfo.fingerprint))
             XCTAssertNil(error)
 
-            let unlockedKey = try privateKey.unlock(testKeyInfo.passphrase.data(using: .utf8))
+            var isLocked: ObjCBool = false
+            try privateKey.isLocked(&isLocked)
+            var unlockedKey: CryptoKey!
+            if isLocked.boolValue {
+                unlockedKey = try privateKey.unlock(testKeyInfo.passphrase.data(using: .utf8))
+            } else {
+                unlockedKey = privateKey
+            }
             let encryptedMessage = try CryptoNewKeyRing(publicKey, &error)?.encrypt(plainMessage, privateKey: nil)
             let decryptedData = try CryptoNewKeyRing(unlockedKey, &error)?.decrypt(messageConverter(encryptedMessage!, &error), verifyKey: nil, verifyTime: 0)
             XCTAssertNil(error)

passKitTests/Crypto/PGPAgentTest.swift

@@ -64,6 +64,7 @@ class PGPAgentTest: XCTestCase {
         try [
             RSA2048,
             RSA2048_SUB,
+            RSA3072_NO_PASSPHRASE,
             RSA4096,
             RSA4096_SUB,
             ED25519,

passKitTests/Testbase/TestPGPKeys.swift

@@ -45,6 +45,13 @@ let RSA2048_SUB = PGPTestSet(
     passphrase: "passforios"
 )
 
+let RSA3072_NO_PASSPHRASE = PGPTestSet(
+    publicKey: PGP_RSA3072_PUBLIC_KEY_NO_PASSPHRASE,
+    privateKey: PGP_RSA3072_PRIVATE_KEY_NO_PASSPHRASE,
+    fingerprint: "be0f9402",
+    passphrase: ""
+)
+
 let RSA4096 = PGPTestSet(
     publicKey: PGP_RSA4096_PUBLIC_KEY,
     privateKey: PGP_RSA4096_PRIVATE_KEY,
@@ -242,6 +249,134 @@ XY0AlWAbvH1ytWboh+CgS493JfZbNRCXTWA/BDE=
 -----END PGP PRIVATE KEY BLOCK-----
 """
 
+let PGP_RSA3072_PUBLIC_KEY_NO_PASSPHRASE = """
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
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+=w+7J
+-----END PGP PUBLIC KEY BLOCK-----
+"""
+
+let PGP_RSA3072_PRIVATE_KEY_NO_PASSPHRASE = """
+-----BEGIN PGP PRIVATE KEY BLOCK-----
+
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+=/IMN
+-----END PGP PRIVATE KEY BLOCK-----
+"""
+
 let PGP_RSA4096_PUBLIC_KEY = """
 -----BEGIN PGP PUBLIC KEY BLOCK-----