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<script src="pkgdown.js"></script><meta property="og:title" content="One Time Password Generation and Verification">
<meta property="og:description" content="Generating and validating One-time Password based on 
    Hash-based Message Authentication Code (HOTP) 
    and Time Based One-time Password (TOTP)
    according to RFC 4226 &lt;https://datatracker.ietf.org/doc/html/rfc4226&gt; an