diff --git a/lib/bcoin/keyring.js b/lib/bcoin/keyring.js
index 68b72cb8..ac82b706 100644
--- a/lib/bcoin/keyring.js
+++ b/lib/bcoin/keyring.js
@@ -620,9 +620,9 @@ KeyRing.prototype.toJSON = function toJSON() {
     index: this.index,
     key: utils.toBase58(this.key),
     keys: this.keys.map(utils.toBase58),
-    keyAddress: this.getKeyAddress(),
-    scriptAddress: this.getScriptAddress(),
-    programAddress: this.getProgramAddress()
+    keyAddress: this.getKeyAddress('base58'),
+    scriptAddress: this.getScriptAddress('base58'),
+    programAddress: this.getProgramAddress('base58')
   };
 };
 
@@ -635,6 +635,20 @@ KeyRing.prototype.toJSON = function toJSON() {
 KeyRing.prototype.fromJSON = function fromJSON(json) {
   var i;
 
+  assert(json);
+  assert(typeof json.network === 'string');
+  assert(typeof json.type === 'string');
+  assert(utils.isNumber(json.m));
+  assert(utils.isNumber(json.n));
+  assert(typeof json.witness === 'boolean');
+  assert(!json.id || typeof json.id === 'string');
+  assert(!json.name || typeof json.name === 'string');
+  assert(utils.isNumber(json.account));
+  assert(utils.isNumber(json.change));
+  assert(utils.isNumber(json.index));
+  assert(typeof json.key === 'string');
+  assert(Array.isArray(json.keys));
+
   this.nework = bcoin.network.get(json.network);
   this.type = json.type;
   this.m = json.m;