There are two types of JavaScript found so far. The ones with SHA and the ones without. There are only 2 examples of JS with SHA:Both files start with precisely the same string:
var ms="\u062F\u0631\u064A\u0627\u0641\u062A\u06CC",lc="\u062A\u0647\u064A\u0647 \u0645\u062A\u0646",mn="\u0628\u0631\u062F\u0627\u0632\u0634 \u062F\u0631 \u062C\u0631\u064A\u0627\u0646 \u0627\u0633\u062A...\u0644\u0637\u0641\u0627 \u0635\u0628\u0631 \u0643\u0646\u064A\u062F",lt="\u062A\u0647\u064A\u0647 \u0645\u062A\u0646",ne="\u067E\u0627\u0633\u062E",kf="\u062E\u0631\u0648\u062C",mb="\u062D\u0630\u0641",mv="\u062F\u0631\u064A\u0627\u0641\u062A\u06CC",nt="\u0627\u0631\u0633\u0627\u0644",ig="\u062B\u0628\u062A \u063A\u0644\u0637. \u062C\u0647\u062A \u062A\u062C\u062F\u064A\u062F \u062B\u0628\u062A \u0635\u0641\u062D\u0647 \u0631\u0627 \u0628\u0627\u0632\u0622\u0648\u0631\u06CC \u06A9\u0646\u064A\u062F",hs="\u063A\u064A\u0631 \u0642\u0627\u0628\u0644 \u0627\u062C\u0631\u0627. \u062E\u0637\u0627 \u062F\u0631 \u0627\u062A\u0651\u0635\u0627\u0644",ji="\u063A\u064A\u0631 \u0642\u0627\u0628\u0644 \u0627\u062C\u0631\u0627. \u062E\u0637\u0627 \u062F\u0631 \u0627\u062A\u0651\u0635\u0627\u0644",ie="\u063A\u064A\u0631 \u0642\u0627\u0628\u0644 \u0627\u062C\u0631\u0627. \u062E\u0637\u0627 \u062F\u0631 \u0627\u062A\u0651\u0635\u0627\u0644",gc="\u0633\u0648\u0627\u0631 \u06A9\u0631\u062F\u0646 \u062A\u06A9\u0645\u064A\u0644 \u0634\u062F",gz="\u0645\u0637\u0645\u0626\u0646\u064A\u062F \u06A9\u0647 \u0645\u064A\u062E\u0648\u0627\u0647\u064A\u062F \u067E\u064A\u0627\u0645 \u0631\u0627 \u062D\u0630\u0641 \u06A9\u0646\u064A\u062F\u061F"
Good fingerprint present in all of them:
throw new Error("B64 D.1");};if(at[1]==-1){throw new Error("B64 D.2");};if(at[2]==-1){if(f<ay.length){throw new Error("B64 D.3");};dg=2;}else if(at[3]==-1){if(f<ay.length){throw new Error("B64 D.4")
Notably, the password is hardcoded and its hash is stored in the JavaScript itself. The result is then submitted back via a POST request to /cgi-bin/goal.cgi.
TODO: how is the SHA calculated? Appears to be manual.