initial commit

server/node_modules/jose/dist/browser/lib/buffer_utils.js

@@ -0,0 +1,51 @@
+import digest from '../runtime/digest.js';
+export const encoder = new TextEncoder();
+export const decoder = new TextDecoder();
+const MAX_INT32 = 2 ** 32;
+export function concat(...buffers) {
+    const size = buffers.reduce((acc, { length }) => acc + length, 0);
+    const buf = new Uint8Array(size);
+    let i = 0;
+    buffers.forEach((buffer) => {
+        buf.set(buffer, i);
+        i += buffer.length;
+    });
+    return buf;
+}
+export function p2s(alg, p2sInput) {
+    return concat(encoder.encode(alg), new Uint8Array([0]), p2sInput);
+}
+function writeUInt32BE(buf, value, offset) {
+    if (value < 0 || value >= MAX_INT32) {
+        throw new RangeError(`value must be >= 0 and <= ${MAX_INT32 - 1}. Received ${value}`);
+    }
+    buf.set([value >>> 24, value >>> 16, value >>> 8, value & 0xff], offset);
+}
+export function uint64be(value) {
+    const high = Math.floor(value / MAX_INT32);
+    const low = value % MAX_INT32;
+    const buf = new Uint8Array(8);
+    writeUInt32BE(buf, high, 0);
+    writeUInt32BE(buf, low, 4);
+    return buf;
+}
+export function uint32be(value) {
+    const buf = new Uint8Array(4);
+    writeUInt32BE(buf, value);
+    return buf;
+}
+export function lengthAndInput(input) {
+    return concat(uint32be(input.length), input);
+}
+export async function concatKdf(secret, bits, value) {
+    const iterations = Math.ceil((bits >> 3) / 32);
+    const res = new Uint8Array(iterations * 32);
+    for (let iter = 0; iter < iterations; iter++) {
+        const buf = new Uint8Array(4 + secret.length + value.length);
+        buf.set(uint32be(iter + 1));
+        buf.set(secret, 4);
+        buf.set(value, 4 + secret.length);
+        res.set(await digest('sha256', buf), iter * 32);
+    }
+    return res.slice(0, bits >> 3);
+}