76 lines
1.7 KiB
JavaScript
76 lines
1.7 KiB
JavaScript
import Connection from "./connection";
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import _sodium from "libsodium-wrappers";
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window.currentConnection = undefined;
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export function setConn(conn) {
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window.currentConnection = conn;
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}
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export function getConn() {
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return window.currentConnection;
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}
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export function close() {
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getConn()?.close();
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setConn(undefined);
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}
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export function newConn() {
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window.currentConnection?.close();
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const conn = new Connection();
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setConn(conn);
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return conn;
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}
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let sodium;
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export async function verify(signed, pk) {
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if (!sodium) {
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await _sodium.ready;
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sodium = _sodium;
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}
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if (typeof pk == 'string') {
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pk = decodeBase64(pk);
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}
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return sodium.crypto_sign_open(signed, pk);
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}
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export function decodeBase64(pk) {
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return sodium.from_base64(pk, sodium.base64_variants.ORIGINAL);
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}
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export function genBoxKeyPair() {
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const pair = sodium.crypto_box_keypair();
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const sk = pair.privateKey;
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const pk = pair.publicKey;
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return [sk, pk];
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}
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export function genSecretKey() {
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return sodium.crypto_secretbox_keygen();
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}
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export function seal(unsigned, theirPk, ourSk) {
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const nonce = Uint8Array.from(Array(24).fill(0));
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return sodium.crypto_box_easy(unsigned, nonce, theirPk, ourSk);
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}
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function makeOnce(value) {
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var byteArray = Array(24).fill(0);
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for (var index = 0; index < byteArray.length && value > 0; index++) {
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var byte = value & 0xff;
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byteArray[index] = byte;
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value = (value - byte) / 256;
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}
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return Uint8Array.from(byteArray);
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};
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export function encrypt(unsigned, nonce, key) {
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return sodium.crypto_secretbox_easy(unsigned, makeOnce(nonce), key);
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}
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export function decrypt(signed, nonce, key) {
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return sodium.crypto_secretbox_open_easy(signed, makeOnce(nonce), key);
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} |