Refactor and replace OpenSSL dependencies with Apple-native CryptoKit/CommonCrypto for DTLS-SRTP

- Updated STATUS.md to reflect the transition from OpenSSL to Apple-native CryptoKit/CommonCrypto for DTLS-SRTP backend.
- Removed check_openssl_packaging.sh script and associated validation logic.
- Modified release proof scripts to validate Apple-native crypto DTLS-SRTP instead of OpenSSL XCFramework.
- Updated various scripts to ensure no OpenSSL dependencies remain, including checks for C FFI and XCFramework packaging.
- Adjusted release readiness checks and proof generation to align with the new crypto backend.

Author: MarlonJD

.github/workflows/production-release.yml

@@ -33,7 +33,7 @@ jobs:
       LIVEKIT_NATIVE_RUN_DEVICE_VALIDATION: "1"
       LIVEKIT_NATIVE_RUN_DEVICE_AUDIO_VIDEO: "1"
       LIVEKIT_NATIVE_RUN_DEVICE_SOAK: "1"
-      LIVEKIT_NATIVE_VALIDATE_OPENSSL_XCFRAMEWORK: "1"
+      LIVEKIT_NATIVE_VALIDATE_APPLE_NATIVE_CRYPTO_DTLS_SRTP: "1"
       LIVEKIT_NATIVE_LIVEKIT_URL: ${{ secrets.LIVEKIT_NATIVE_LIVEKIT_URL }}
       LIVEKIT_NATIVE_API_KEY: ${{ secrets.LIVEKIT_NATIVE_API_KEY }}
       LIVEKIT_NATIVE_API_SECRET: ${{ secrets.LIVEKIT_NATIVE_API_SECRET }}
@@ -76,7 +76,7 @@ jobs:
             LIVEKIT_NATIVE_DEVICE_VALIDATION_PROOF
             LIVEKIT_NATIVE_DEVICE_AUDIO_VIDEO_PROOF
             LIVEKIT_NATIVE_DEVICE_SOAK_PROOF
-            LIVEKIT_NATIVE_OPENSSL_XCFRAMEWORK_PROOF
+            LIVEKIT_NATIVE_APPLE_NATIVE_CRYPTO_DTLS_SRTP_PROOF
           )
 
           for variable_name in "${required_proof_variables[@]}"; do

Package.swift

@@ -44,9 +44,7 @@ let package = Package(
         ),
         .target(
             name: "LiveKitNativeWebRTC",
-            dependencies: [
-                "CLiveKitNativeOpenSSL",
-            ],
+            dependencies: [],
             linkerSettings: [
                 .linkedFramework("AVFoundation", .when(platforms: [.iOS, .macOS])),
                 .linkedFramework("AudioToolbox", .when(platforms: [.iOS, .macOS])),
@@ -56,19 +54,6 @@ let package = Package(
                 .linkedFramework("VideoToolbox", .when(platforms: [.iOS, .macOS])),
             ]
         ),
-        .systemLibrary(
-            name: "COpenSSL",
-            pkgConfig: "openssl",
-            providers: [
-                .brew(["openssl@3"]),
-            ]
-        ),
-        .target(
-            name: "CLiveKitNativeOpenSSL",
-            dependencies: [
-                "COpenSSL",
-            ]
-        ),
         .executableTarget(
             name: "LiveKitNativeBenchmarks",
             dependencies: [