Question
How are Verify PIN codes generated?
Applies To
- Verify API
- PIN Code
Answer
Vonage Verify generates Time-Based One-Time PIN codes according to RFC 6238.
- PIN default length is 4 digits and can be set per API call to 6
- PIN expiry time is 5 minutes by default
If a PIN code expires during a workflow in progress, a new PIN will be generated for this verification request for the next attempt. This means that the old PIN is no longer valid. Any future verification checks for this request will need to use the new PIN.
Articles in this section
- How do I know whether TTS or SMS will be used for a verification?
- What happens if the line is busy when receiving a Verify call?
- What happens if the Verify TTS call goes to voicemail?
- What is the maximum number of Verify attempts a user will receive?
- How much time is there between Verify attempts?
- What is the maximum amount of concurrent Verify requests per account?
- How many times can I send a Verify request to a single number?
- How many times can a user enter a PIN code?
- Why was a Verify SMS not sent to my number?
- Why is my Verify SMS or TTS call not in the primary language of my destination country?