encrypt/decrypt a selected text with big issue

[pulsar14]

First time I use your N++ plugin ...

1. select in N++ some Text
2. encrypt selected text with pass = x
3. decrypt selected text with pass = xx
   the text is correctly decrypted! .... What?

TODOOOOOOOO !!!!!!!!!!   ---> encrypt with key "x" ---> 8BD850D30D2346F70383E0674EEF6532CDD4346394A2FC73
8BD850D30D2346F70383E0674EEF6532CDD4346394A2FC73  ---> dencrypted with key "xx" ---> TODOOOOOOOO !!!!!!!!!!

Wow!!!
Idem if I choose any keys like: xxx, xxxx, xxxxx .....

Compliments for the basic security!

[chcg]

Apart from using just x as passphrase is obviously not sufficient, see readme:

though of course it is always advised that you use a reasonably complex password

It is a strange behaviour that multiplying the passphrase is working not just for e.g. 'x' or 'y', but also for e.g. 'abc'.
Probably there should be at least a check of the minimum length of the passphrase and probably also the variance.