oathtool

OATH one-time password tool.

More information.

• Generate TOTP token (behaves like Google Authenticator):

oathtool --totp --base32 "{secret}"

• Generate a TOTP token for a specific time:

oathtool --totp --now "{2004-02-29 16:21:42}" --base32 "{secret}"

• Validate a TOTP token:

oathtool --totp --base32 "{secret}" "{token}"

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