Bump version

.jshintrc

@@ -1,18 +1,12 @@
-
-
-
-
-
-
 {
   "browser": true,
   "node": true,
   "esversion": 11,
   "curly": true,
   "sub": true,
 
-  
-  "bitwise": true,
+
+  "bitwise": false,
   "eqeqeq": true,
   "forin": true,
   "freeze": true,

README.md

@@ -59,6 +59,28 @@ let parts = await b58c.verify(wif);
       "check": "24aeb2e6"
     }
  */
+
+// Extended Public Key
+let xpub = `xpub6EtdcAi4VMbZRDgSaA1WmrqB8asuswgz1toia3YULccxyJXYqdxwqFgeEexVxr8ytJPHZYTrhbYJjqaFumih45awabyaHwUmCvXbGf7sujG`;
+let parts = await b58c.decode(xpub); // TODO checksum not checked
+/*
+    {
+      "version": "0488b21e",
+      "pubKeyHash": "04832a89a60000000091dbdc89637be3d19851998ba2fac7f85b03b28a65de5c284899e7608f25ee4f0238eddc6cf0b2e8a1bae318affe3661cc071d13c9ad95e77a331a91b58a1b3a7f",
+      "check": "c1edc9ce"
+    }
+ */
+
+// Extended Public Key
+let xprv = `xprvA1WUDWFxdE5UGW1XNTnkZnd3K6bdidZBTtzvtEQziBpS3N8tajC4QKyRLmas7DK4HXK76wSXgMV1uV6RbKyM5f4uu1VmguEhAqvzQwr2mrC`;
+let parts = await b58c.decode(xprv); // TODO checksum not checked
+/*
+    {
+      "version": "0488ade4",
+      "xprv": "04832a89a60000000091dbdc89637be3d19851998ba2fac7f85b03b28a65de5c284899e7608f25ee4f0079842279eca681d40ccc86c6c618f783f4d4339c2431e4ed29e57c7b73be0c69",
+      "check": "e986668d"
+    }
+ */
 ```
 
 ### Options

base58check-test.js

@@ -26,8 +26,38 @@ async function toWif() {
     "XFPxuUn5Epz625e6FXAVXL5W8C87iLc8q8KK8ioexsU8dwj9RidW",
     "XFdqUukoCypRmmSrVWCZm5gFC7DGKNByHr66DmVL6JZTEPzmkoog",
     "XCBPnETeYM3CESgw94wM19u6qR4YWkokHB9MuCD4faTMbVeBRkmT",
-  ].reduce(async function (prev, prv) {
-    await b58c.verify(prv);
+  ].reduce(async function (prev, wif) {
+    await b58c.verify(wif);
+
+    let decoded = await b58c.decode(wif);
+    let check = await b58c.checksum({
+      privateKey: decoded.privateKey,
+    });
+
+    try {
+      await b58c.checksum({
+        pubKeyHash: decoded.privateKey,
+      });
+      throw new Error("allowed checksum of wrong key type");
+    } catch (e) {
+      // ignore, expected
+    }
+
+    if (decoded.check !== check) {
+      throw new Error("checksum({ privateKey }) failed");
+    }
+
+    let encoded = await b58c.encode({
+      version: undefined,
+      privateKey: decoded.privateKey,
+    });
+    let decoded2 = await b58c.decode(encoded);
+    if (decoded.privateKey !== decoded2.privateKey) {
+      throw new Error(`private keys don't match`);
+    }
+    if (decoded.privateKey !== decoded2.privateKey) {
+      throw new Error(`checksums don't match`);
+    }
   }, Promise.resolve());
 }
 
@@ -47,6 +77,22 @@ async function toPubKeyHash() {
   let parts = await b58c.verify(addr);
   console.info(`\t` + JSON.stringify(parts));
 
+  let check = await b58c.checksum({
+    pubKeyHash: parts.pubKeyHash,
+  });
+  if (parts.check !== check) {
+    throw new Error("checksum({ privateKey }) failed");
+  }
+
+  try {
+    await b58c.checksum({
+      privateKey: parts.pubKeyHash,
+    });
+    throw new Error("allowed checksum of pubKeyHash for privateKey");
+  } catch (e) {
+    // ignore, expected
+  }
+
   let full = await b58c.encode(parts);
   console.info(`\t${full}`);