fix lowercase keys

bellstrand · Jul 8, 2024 · 139f25d · 139f25d
1 parent c38623d
commit 139f25d
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Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/src/index.spec.ts b/src/index.spec.ts
@@ -4,6 +4,11 @@ describe("totp generation", () => {
 	beforeEach(() => jest.useFakeTimers())
 	afterEach(() => jest.resetAllMocks())
 
+	test("should generate token with lowercase key characters", async () => {
+		jest.setSystemTime(0)
+		await expect(TOTP.generate("jbswY3dpehpk3pxp")).resolves.toEqual(expect.objectContaining({ otp: "282760" }))
+	})
+
 	test("should generate token with date now = 1971", async () => {
 		jest.setSystemTime(0)
 		await expect(TOTP.generate("JBSWY3DPEHPK3PXP")).resolves.toEqual(expect.objectContaining({ otp: "282760" }))

diff --git a/src/index.ts b/src/index.ts
@@ -77,6 +77,7 @@ export class TOTP {
 	 * @returns {ArrayBuffer} The ArrayBuffer representation of the base32 encoded string.
 	 */
 	private static base32ToBuffer(str: string): ArrayBuffer {
+		str = str.toUpperCase()
 		let length = str.length
 		while (str.charCodeAt(length - 1) === 61) length-- // Remove pads