check the checksum (#9)

jshawl · Feb 4, 2024 · e5af882 · e5af882
1 parent 3d7e167
commit e5af882
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/spec/minisign/private_key_spec.rb b/spec/minisign/private_key_spec.rb
@@ -60,6 +60,17 @@
     it 'parses the checksum' do
       expect(@private_key.checksum).to eq([19, 146, 239, 121, 33, 164, 216, 219, 8, 104, 111, 52, 198, 78, 21, 236,
                                            113, 255, 174, 47, 39, 216, 61, 198, 233, 161, 233, 143, 84, 246, 255, 150])
+
+      key_data = [
+        [69, 100],
+        @private_key.key_id,
+        @private_key.secret_key,
+        @private_key.public_key
+      ].inject(&:+).pack('C*')
+
+      computed_checksum = RbNaCl::Hash::Blake2b.digest(key_data, { digest_size: 32 }).bytes
+
+      expect(@private_key.checksum).to eq(computed_checksum)
     end
   end