Fix canonicalized raw secret key export length.

digitalbazaar · Jan 26, 2025 · fba631e · fba631e
1 parent 871ed71
commit fba631e
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # @digitalbazaar/ed25519-multikey ChangeLog
 
+## 1.3.1 - 2025-mm-dd
+
+### Fixed
+- Fix canonicalized raw secret key export length.
+
 ## 1.3.0 - 2024-10-02
 
 ### Added

diff --git a/lib/index.js b/lib/index.js
@@ -120,8 +120,9 @@ async function _createKeyPairInterface({keyPair}) {
         if(secretKey) {
           if(canonicalize && secretKey.length > SECRET_KEY_SIZE) {
             result.secretKey = secretKey.subarray(0, SECRET_KEY_SIZE).slice();
+          } else {
+            result.secretKey = secretKey;
           }
-          result.secretKey = secretKey;
         }
         return result;
       }

diff --git a/test/Ed25519Multikey.spec.js b/test/Ed25519Multikey.spec.js
@@ -111,6 +111,17 @@ describe('Ed25519Multikey', () => {
       expect(exported).to.have.property('id', 'did:ex:123#test-id');
       expect(exported).to.have.property('type', 'Multikey');
     });
+
+    it('should export raw private key w/canonical length', async () => {
+      const keyPair = await Ed25519Multikey.generate({
+        id: 'did:ex:123#test-id'
+      });
+      const exported = await keyPair.export({
+        raw: true, secretKey: true, canonicalize: true
+      });
+      expect(exported).to.have.property('secretKey');
+      expect(exported.secretKey.length).to.equal(32);
+    });
   });
 
   describe('from', () => {