1 files changed, 29 insertions, 0 deletions
diff --git a/library/sodium-plus/lib/keytypes/ed25519sk.js b/library/sodium-plus/lib/keytypes/ed25519sk.js
new file mode 100644
index 000000000..3c67286c2
--- /dev/null
+++ b/library/sodium-plus/lib/keytypes/ed25519sk.js
@@ -0,0 +1,29 @@
+const CryptographyKey = require('../cryptography-key');
+
+class Ed25519SecretKey extends CryptographyKey {
+    constructor(buf) {
+        if (buf.length !== 64) {
+            throw new Error('Ed25519 secret keys must be 64 bytes long');
+        }
+        super(buf);
+        this.keyType = 'ed25519';
+        this.publicKey = false;
+    }
+
+    /**
+     * @return {Ed25519SecretKey}
+     */
+    static from() {
+        return new Ed25519SecretKey(Buffer.from(...arguments));
+    }
+
+    isEd25519Key() {
+        return true;
+    }
+
+    isPublicKey() {
+        return false;
+    }
+}
+
+module.exports = Ed25519SecretKey;
+\ No newline at end of file