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Dear Apple Developer team,We're using CryptoSwift to encrypt password:private func encryptAESCBC(rawText: String, key: String) -> String { let iv = Data(count: 16) do { let keyData = Data(hex: key) print("keyData: \(keyData.bytes)") let aes = try AES(key: keyData.bytes, blockMode: CBC(iv: iv.bytes), padding: .pkcs7) let cipherPassword = try aes.encrypt(Array(rawText.utf8)).toHexString() print("cipherPassword: \(cipherPassword)") return cipherPassword } catch { print(error.localizedDescription) return "" } }Building with Xcode below 11, everything is good. But If we build it with XCode 11 cipherPassword returned an unexpected result in 32-bit devices. Then we tried to convert to use CommonCrypto, It returned unexpected result in 32-bit devices also.- (NSData *)makeCryptedVersionWithKeyData:(const void*)keyData ofLength:(int)keyLength decrypt:(bool)decrypt { // Copy the key data, padding with zeroes if needed char key[kKeySize]; bzero(key, sizeof(key)); memcpy(key, keyData, keyLength > kKeySize ? kKeySize : keyLength); size_t bufferSize = [self length] + kCCBlockSizeAES128; void* buffer = malloc(bufferSize); size_t dataUsed; char cIv[kCCBlockSizeAES128]; bzero(cIv, kCCBlockSizeAES128); CCCryptorStatus status = CCCrypt(decrypt ? kCCDecrypt : kCCEncrypt, kCCAlgorithmAES, kCCOptionPKCS7Padding, key, kKeySize, cIv, [self bytes], [self length], buffer, bufferSize, &dataUsed); return [NSData dataWithBytesNoCopy:buffer length:dataUsed]; }But If we build it using XCode 10.2.1 everything is okay, However, we upload app into AppStore connect and download by TestFlight in 32-bit devices. It returned unexpected result in 32-bit devices also. We guest after Apple update AppStore connect at Sept 10, 12 that using XCode 11 to rebuild binary with uploaded bitcode. So if we upload a build (xcode 10.2.1) without bitcode into AppStore connect and download by TestFlight everything will okay.Just happened on 32-bit iPhone devices, 64-bit iPhone devices are good.
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