I have an android class which is encoding and decoding my text using a key but I want to create the same class for swift.
“I'm setting up a new server, and want to support UTF-8 fully in my web application. Where do I need to set the encoding/charsets?”
public class EncryptionDecryption { String strResult;
public String Encrypt(String text, String key) throws Exception {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
byte[] keyBytes = new byte[16];
byte[] b = key.getBytes("UTF-8");
int len = b.length;
if (len > keyBytes.length)
len = keyBytes.length;
System.arraycopy(b, 0, keyBytes, 0, len);
SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
IvParameterSpec ivSpec = new IvParameterSpec(keyBytes);
cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
byte[] results = cipher.doFinal(text.getBytes("UTF-8"));
Log.v("GET Result from final:", results.toString());
strResult = Base64.encodeToString(results, 1);
Log.v("Encrypt01:", strResult);
Log.v("Encrypt02:", results.toString());
return strResult;
}
public String Decrypt(String text, String key) throws Exception {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); //this parameters should not be changed
byte[] keyBytes = new byte[16];
byte[] b = key.getBytes("UTF-8");
int len = b.length;
if (len > keyBytes.length)
len = keyBytes.length;
System.arraycopy(b, 0, keyBytes, 0, len);
SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
IvParameterSpec ivSpec = new IvParameterSpec(keyBytes);
cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
byte[] results = new byte[text.length()];
//BASE64Decoder decoder = new BASE64Decoder();
try {
results = cipher.doFinal(Base64.decode(text, Base64.DEFAULT));
} catch (Exception e) {
Log.i("Error in Decryption", e.toString());
}
Log.i("Data", new String(results, "UTF-8"));
//return new String(results, "UTF-8"); // it returns the result as a String
return new String(results, "UTF-8");
}
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