[Interest] Qt 5.12 Beta 3 app freezes with Javascript library (RSA encrypt)

[ekke]

Qt 5.12 Beta 3. Android and iOS

in one of my apps I had to encrypt the user password using a JavaScript
library

http://www-cs-students.stanford.edu/%7Etjw/jsbn/

from there I put these .js into resources:

<RCC>
    <qresource prefix="/">
        <file>js/rsbn/base64.js</file>
        <file>js/rsbn/jsbn.js</file>
        <file>js/rsbn/prng4.js</file>
        <file>js/rsbn/rng.js</file>
        <file>js/rsbn/rsa.js</file>
    </qresource>
</RCC>

in QML:

import "../../js/rsbn/jsbn.js" as MyJsbn
import "../../js/rsbn/rsa.js" as MyRsa
import "../../js/rsbn/rng.js" as MyRng
import "../../js/rsbn/prng4.js" as MyPrng4
import "../../js/rsbn/base64.js" as MyBase64

function doEncrypt() {
    var rsa = new MyRsa.RSAKey();
    rsa.setPublic(dataServer.modulusHex(), "10001")
    console.log("5.12 OK")
    var res = rsa.encrypt(pwText.text)
    console.log("5.12 freeze")
    if(res) {
        return MyRsa.linebrk(res, 64)
    } else {
        return ""
    }
}

in 5.10.1 or 5.11.2 this is working fine

in 5.12 Beta 3 it freezes as soon as calling rsa.encrypt()

any idea what could be different in 5.12 ?

thx

ekke