The Time-based One-Time Password Algorithm (TOTP) is an algorithm that computes a one-time password from a shared secret key and the current time. It combines a secret key with the current timestamp using a cryptographic hash function to generate a one-time password, changing every 30 seconds.
How to set Google authenticator?
1. Enter https://www.viabtc.com, then go to [Settings]>[Account Settings].
2. Click "Set Up" under [Google Authenticator].
Please note: withdrawal service will be prohibited within 24 hours after changing GA.
3. Download the Google Authenticator app and click [Next].
4. Click [+] in the Google Authenticator app to scan QR code or enter the 16-digit Secret Key, and fill in the blank with a 6-digit GA code generated. Enter GA code and click [Next].
5. Back up the 16-digit Secret Key on the screen to and click [Confirm] complete the binding.
How to reset the Google Authenticator?
Method 1: Use the backed up 16-digit Secret Key and reset it by yourself.
Open Google Authenticator app on your phone, and click [+] in the app to scan QR code on a website or enter Secret Key to reset the Google Authenticator.
Method 2: If you have bound both the mobile and Google Authenticator, you can reset it by yourself.
1. Enter https://www.viabtc.com, then go to [Settings]>[Account Settings].
2. Click "Change" under [Google Authenticator].
3. Enter GA code or the SMS code and click [next].
4. Click [+] in the Google Authenticator app to scan QR code or enter the 16-digit Secret Key, and fill in the blank with a 6-digit GA code generated. Back up the Secret Key on the screen to complete the resetting. Enter the GA code and click [Confirm].
Method 3: Submit the documents and let ViaBTC reset Google Authenticator for you.
1. Enter https://www.viabtc.com, then go to [Settings]>[Account Settings].
2. Click "Change" under [Google Authenticator].
3. Click“Lost Google Authenticator?”
4. Read the instructions carefully and click [Got it and proceed].
5. Enter the email verification code and click [Confirm].
6. Select the Country/Region and ID type, enter the ID number.
7. Upload the front and backside of your ID document and the selfie in which you hold the ID and the hand-written paper. Tick the note "Please submit the application as required. You may try again if the application fails to meet our requirement" and click the [Confirm] to complete the process.
Method 4: If you cannot log in to your account, please submit a ticket and let ViaBTC help you reset the Google Authenticator.
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