totp.cpp File Reference

HMAC-SHA1 HOTP/TOTP (RFC 4226 / 6238) + base32 decode (pure). More...

#include "services/totp/totp.h"

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Detailed Description

HMAC-SHA1 HOTP/TOTP (RFC 4226 / 6238) + base32 decode (pure).

HMAC-SHA1 is built on the existing one-shot software SHA-1; the TOTP message is the 8-byte counter, so all working buffers are fixed and stack-local.

Definition in file totp.cpp.