We have the below Implementation in Android and the same has to be integrated into Swift.
Key :- "d95acd54b4a821ff32c52825q931c194"
IV :- "687b9509c25a34b8ad076346s8353d67"
Here Both the Key and IV are 32 bits and below is the android code.
public class AESEncryption {
private static final String key = "d95acd54c6a821ff32c52825b931c194";
private static final String initVector = "687b9509c25a14b8ad076346d8353d67";
static byte[] bte = hexToBytes(initVector);
public static String encrypt(String strToEncrypt) {
try {
CommonCode.showLog("log", bte.toString());
IvParameterSpec iv = new IvParameterSpec(bte);
SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes(StandardCharsets.UTF_8), "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
CommonCode.showLog("IV after logs", iv.toString());
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] encrypted = cipher.doFinal(strToEncrypt.getBytes());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
return Base64.getEncoder().encodeToString(encrypted).trim();
} else {
return android.util.Base64.encodeToString(encrypted, android.util.Base64.DEFAULT).trim();
}
} catch (Exception e) {
CommonCode.showLog("Error while encrypting: ", e.toString());
}
return null;
}
public static String decrypt(String strToDecrypt) {
try {
IvParameterSpec iv = new IvParameterSpec(bte);
SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes(StandardCharsets.UTF_8), "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
return new String(cipher.doFinal(Base64.getDecoder().decode(strToDecrypt)));
} else {
return new String(cipher.doFinal(android.util.Base64.decode(strToDecrypt, android.util.Base64.DEFAULT)));
}
} catch (Exception e) {
CommonCode.showLog("Error while decrypting: " , e.toString());
}
return null;
}
}
How can we mimic the above in Swift?
Here in Android they are using static byte[] bte = hexToBytes(initVector); to convert the 32bit IV into 16 bit Bytes Array
I Have Tried the same approach on Swift below are the code snippet
[Contents.swift](https://developer.apple.com/forums/content/attachment/60fab4f2-1496-4003-9f37-c195de95e94a)
