1 files changed, 47 insertions, 48 deletions

diff --git a/packages/taler-util/src/kdf.js b/packages/taler-util/src/kdf.js
index 32f17beac..6cd3d1ddf 100644
--- a/packages/taler-util/src/kdf.js
+++ b/packages/taler-util/src/kdf.js
@@ -16,61 +16,60 @@
 import * as nacl from "./nacl-fast.js";
 import { sha256 } from "./sha256.js";
 export function sha512(data) {
-    return nacl.hash(data);
+  return nacl.hash(data);
 }
 export function hmac(digest, blockSize, key, message) {
-    if (key.byteLength > blockSize) {
-        key = digest(key);
-    }
-    if (key.byteLength < blockSize) {
-        const k = key;
-        key = new Uint8Array(blockSize);
-        key.set(k, 0);
-    }
-    const okp = new Uint8Array(blockSize);
-    const ikp = new Uint8Array(blockSize);
-    for (let i = 0; i < blockSize; i++) {
-        ikp[i] = key[i] ^ 0x36;
-        okp[i] = key[i] ^ 0x5c;
-    }
-    const b1 = new Uint8Array(blockSize + message.byteLength);
-    b1.set(ikp, 0);
-    b1.set(message, blockSize);
-    const h0 = digest(b1);
-    const b2 = new Uint8Array(blockSize + h0.length);
-    b2.set(okp, 0);
-    b2.set(h0, blockSize);
-    return digest(b2);
+  if (key.byteLength > blockSize) {
+    key = digest(key);
+  }
+  if (key.byteLength < blockSize) {
+    const k = key;
+    key = new Uint8Array(blockSize);
+    key.set(k, 0);
+  }
+  const okp = new Uint8Array(blockSize);
+  const ikp = new Uint8Array(blockSize);
+  for (let i = 0; i < blockSize; i++) {
+    ikp[i] = key[i] ^ 0x36;
+    okp[i] = key[i] ^ 0x5c;
+  }
+  const b1 = new Uint8Array(blockSize + message.byteLength);
+  b1.set(ikp, 0);
+  b1.set(message, blockSize);
+  const h0 = digest(b1);
+  const b2 = new Uint8Array(blockSize + h0.length);
+  b2.set(okp, 0);
+  b2.set(h0, blockSize);
+  return digest(b2);
 }
 export function hmacSha512(key, message) {
-    return hmac(sha512, 128, key, message);
+  return hmac(sha512, 128, key, message);
 }
 export function hmacSha256(key, message) {
-    return hmac(sha256, 64, key, message);
+  return hmac(sha256, 64, key, message);
 }
 export function kdf(outputLength, ikm, salt, info) {
-    // extract
-    const prk = hmacSha512(salt, ikm);
-    // expand
-    const N = Math.ceil(outputLength / 32);
-    const output = new Uint8Array(N * 32);
-    for (let i = 0; i < N; i++) {
-        let buf;
-        if (i == 0) {
-            buf = new Uint8Array(info.byteLength + 1);
-            buf.set(info, 0);
-        }
-        else {
-            buf = new Uint8Array(info.byteLength + 1 + 32);
-            for (let j = 0; j < 32; j++) {
-                buf[j] = output[(i - 1) * 32 + j];
-            }
-            buf.set(info, 32);
-        }
-        buf[buf.length - 1] = i + 1;
-        const chunk = hmacSha256(prk, buf);
-        output.set(chunk, i * 32);
+  // extract
+  const prk = hmacSha512(salt, ikm);
+  // expand
+  const N = Math.ceil(outputLength / 32);
+  const output = new Uint8Array(N * 32);
+  for (let i = 0; i < N; i++) {
+    let buf;
+    if (i == 0) {
+      buf = new Uint8Array(info.byteLength + 1);
+      buf.set(info, 0);
+    } else {
+      buf = new Uint8Array(info.byteLength + 1 + 32);
+      for (let j = 0; j < 32; j++) {
+        buf[j] = output[(i - 1) * 32 + j];
+      }
+      buf.set(info, 32);
     }
-    return output.slice(0, outputLength);
+    buf[buf.length - 1] = i + 1;
+    const chunk = hmacSha256(prk, buf);
+    output.set(chunk, i * 32);
+  }
+  return output.slice(0, outputLength);
 }
-//# sourceMappingURL=kdf.js.map
\ No newline at end of file
+//# sourceMappingURL=kdf.js.map