Generate test TOTP (Time-based One-Time Password) secrets and sample codes using the SHA-512 algorithm. Perfect for testing 2FA implementations, QA workflows, and authentication system development without needing real user accounts.
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Open 2FA/TOTP Generator →SHA-512 TOTP uses HMAC-SHA512 for maximum cryptographic strength in time-based one-time passwords. While rarely used in consumer applications due to limited authenticator app support, SHA-512 TOTP is available in enterprise security tools and is specified in RFC 6238 as a valid algorithm option alongside SHA-1 and SHA-256. TOTP works by computing HMAC(secret, time_step) where the time step changes every 30 seconds. The resulting hash is truncated to a 6-digit code. Our generator creates realistic test secrets in Base32 format (compatible with QR code provisioning URIs) and sample codes for testing purposes only.
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