Fix regular expression anchoring.

diff --git a/src/lib/nano25519.ts b/src/lib/nano25519.ts
index 32a7eb41c60b6f9d0663bba4e0b02778c7440304..c9d6fca22dfb6ebefe7635dc5b15d5756dbfb71a 100644 (file)
--- a/src/lib/nano25519.ts
+++ b/src/lib/nano25519.ts
@@ -150,7 +150,7 @@ const nano25519_init = (bytes: number[]): { derive: typeof derive, sign: typeof
                        throw new TypeError(`Invalid byte length for ${name}`)
                }
                if (typeof value === 'string') {
-                       const regex = RegExp(`[A-Fa-f0-9]{${byteLengthMin << 1},${byteLengthMax << 1}}`)
+                       const regex = RegExp(`^[A-Fa-f0-9]{${byteLengthMin << 1},${byteLengthMax << 1}}$`)
                        if (!regex.test(value)) {
                                throw new TypeError(`Invalid ${name} ${value}`)
                        }