> For the complete documentation index, see [llms.txt](https://authenticator.hideez.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://authenticator.hideez.com/user-guide/ios-guide/otp-generation.md).
# OTP generation
Hideez Authenticator allows user to generate One-Time Passwords for [a Two-Factor Authentication](https://fidoalliance.org/specs/u2f-specs-master/fido-u2f-overview.html) mechanism.
To use the the OTP generation feature first you have to [enroll your Hideez Authenticator on HES](/user-guide/ios-guide/software-key-enrollment/sso-enrollment.md).
### Add OTP account
You can add an OTP secret either by scanning a QR code or manually.
1. Open the "Accounts" section.\
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2. Tap the "+" button.\
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#### Scan a QR code
1. Scan a QR code from the setup page of your account provider (for example, Google 2FA).\
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#### Add secret manually
1. Tap the "Add manually" button.\
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2. Type the account name and secret key in the corresponding fields.\
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3. You also can provide advanced parameters such as an OTP length, Hash Algorithm, and valid period. Just switch the "Advanced options" trigger to set them up.\
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4. Tap the "Add" button.\
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And there you have it - OTP password generated automatically, you can now confirm it in your service account (for example, Google) and use it for subsequent authorizations.\
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The validity timer of the OTP code is displayed next to the code.\
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### Copy OTP
To copy OTP just tap the OTP code.
### Edit OTP account
1. To edit the OTP account title or name just tap its name and the edit menu will open.\
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2. Make all changes needed and then tap the "Save" button.\
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### Delete OTP account
1. To delete the OTP account [open the edit menu](#edit-otp-account).
2. Then tap the "Delete" button.\
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3. Confirm operation.\
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