encrypt method
Encrypt the given bytes.
Implementation
@override
int encrypt(
Uint8List inp, int inpOff, int inpLength, Uint8List out, int outOff) {
var iv = generateIv();
out.setAll(outOff, iv);
var len = _cipher.encrypt(iv, inp, 0, inpLength, out, outOff + 16);
return len + 16;
}