diff --git a/utils/ECC/crypto.spec.js b/utils/ECC/crypto.spec.js
index 5e18abf7..9b9904a0 100644
--- a/utils/ECC/crypto.spec.js
+++ b/utils/ECC/crypto.spec.js
@@ -4,7 +4,11 @@
 // @ts-check
 const expect = require('expect')
 
-const { generateRandomString } = require('./crypto')
+const {
+  generateRandomString,
+  convertBase64ToBuffer,
+  convertBufferToBase64
+} = require('./crypto')
 
 describe('generateRandomString()', () => {
   it('creates a random string of the specified length', async () => {
@@ -15,3 +19,15 @@ describe('generateRandomString()', () => {
     expect(result.length).toEqual(len)
   })
 })
+
+describe('Buffer <> String <> Buffer', () => {
+  it('preserves values', async () => {
+    const rnd = await generateRandomString(24)
+
+    const asBuffer = convertBase64ToBuffer(rnd)
+
+    const asStringAgain = convertBufferToBase64(asBuffer)
+
+    expect(asStringAgain).toEqual(rnd)
+  })
+})