Rare card
HMAC-based one-time password
- Value
- 50 W
- Attack
- 780
- Defence
- 624
- Players
- 0
HMAC-based one-time password (HOTP) is a one-time password (OTP) algorithm based on the hash-based message authentication code (HMAC) cryptographic algorithm and is a basis for the commonly used Time-based one-time password (TOTP) algorithm which extends upon it.
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