Username:
Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.

HMAC secret key:
Key string used for generating HMAC message signatures. Keep this private!

Password:

• Your password can’t be too similar to your other personal information.
• Your password must contain at least 8 characters.
• Your password can’t be a commonly used password.
• Your password can’t be entirely numeric.

Password confirmation:
Enter the same password as before, for verification.