Method _negotiateMSLogonIIAuth

systemvm/agent/noVNC/core/rfb.js:2186–2227

()

    }

    _negotiateMSLogonIIAuth() {
        if (this._sock.rQwait("mslogonii dh param", 24)) { return false; }

        if (this._rfbCredentials.username === undefined ||
            this._rfbCredentials.password === undefined) {
            this.dispatchEvent(new CustomEvent(
                "credentialsrequired",
                { detail: { types: ["username", "password"] } }));
            return false;
        }

        const g = this._sock.rQshiftBytes(8);
        const p = this._sock.rQshiftBytes(8);
        const A = this._sock.rQshiftBytes(8);
        const dhKey = legacyCrypto.generateKey({ name: "DH", g: g, p: p }, true, ["deriveBits"]);
        const B = legacyCrypto.exportKey("raw", dhKey.publicKey);
        const secret = legacyCrypto.deriveBits({ name: "DH", public: A }, dhKey.privateKey, 64);

        const key = legacyCrypto.importKey("raw", secret, { name: "DES-CBC" }, false, ["encrypt"]);
        const username = encodeUTF8(this._rfbCredentials.username).substring(0, 255);
        const password = encodeUTF8(this._rfbCredentials.password).substring(0, 63);
        let usernameBytes = new Uint8Array(256);
        let passwordBytes = new Uint8Array(64);
        window.crypto.getRandomValues(usernameBytes);
        window.crypto.getRandomValues(passwordBytes);
        for (let i = 0; i < username.length; i++) {
            usernameBytes[i] = username.charCodeAt(i);
        }
        usernameBytes[username.length] = 0;
        for (let i = 0; i < password.length; i++) {
            passwordBytes[i] = password.charCodeAt(i);
        }
        passwordBytes[password.length] = 0;
        usernameBytes = legacyCrypto.encrypt({ name: "DES-CBC", iv: secret }, key, usernameBytes);
        passwordBytes = legacyCrypto.encrypt({ name: "DES-CBC", iv: secret }, key, passwordBytes);
        this._sock.sQpushBytes(B);
        this._sock.sQpushBytes(usernameBytes);
        this._sock.sQpushBytes(passwordBytes);
        this._sock.flush();
        this._rfbInitState = "SecurityResult";
        return true;
    }

    _negotiateAuthentication() {
        switch (this._rfbAuthScheme) {