encrypt256Str function
Implementation
String encrypt256Str(String plainText){
var generatedIV = generate16DigitNumber();
final key = encrypt.Key.fromUtf8("5PbpCqeioHQ3MWj6dJVeluXDE7UttN8P"); //32
final iv = encrypt.IV.fromUtf8(generatedIV);
final encrypter = encrypt.Encrypter(encrypt.AES(key,mode:encrypt.AESMode.cbc));
final encrypted = encrypter.encrypt(plainText, iv: iv);
// final decrypted = encrypter.decrypt(encrypted, iv: iv);
return generatedIV + encrypted.base64;
}