Bad state: IV is required

[dushiling]

在encrypt和decrypt方法里，iv是可选参数，即 {IV? iv}，但方法中写到 if (iv == null) { throw StateError('IV is required.'); }，这导致我不传iv这个参数就会抛异常，这就表示，不管哪种加密方式，都必须传 iv，我认为这里逻辑写的有问题。希望能及时修正。

[farukprogrammer]

for the RSA Algorithm, it doesn't require IV, so I guess I understand why the author put it as optional

[dushiling]

for the RSA Algorithm, it doesn't require IV, so I guess I understand why the author put it as optional

My current problem is: in my previous project, AES encryption was used, version 4.0.3 was used, iv was not passed (because iv was optional), there was no null-safe at that time; Now, after I upgrade to 5.0.1, if I do not upload IV, I will pass null exception, which makes me very helpless, so I have to upload IV, but this leads to the encryption method is different from the previous project.

Latest 5.0.1 release: Encrypted encrypt/decrypt (Uint8List bytes, {IV? iv}) { if (iv == null) { throw StateError('IV is required.'); }

xxxxxxxxxxx } (This means that either method will run a null-exception if iv is not passed.)

In version 4.0.3, it looks like this: Encrypted encrypt/decrypt (Uint8List bytes, {IV iv}) {

xxxxxxxxxxx } (IV value is not required)

[yangyxd]

I also think this is a bug

[jack24254029]

You can pass final IV iv = IV.fromLength(0); to skip this bug, if you confirm the mode desn't need IV.