`totp`

TOTP/HOTP 2FA, authenticator apps, backup codes.

Load with: use totp

Quick example

use totp

result = totps("hello")
prn(result)

Functions

Secret generation

totps()

Performs the operation.

totps(str_input)

Performs the operation. Takes str_input.

TOTP generation

totpn(secret, digits, period)

Performs the operation. Takes secret, digits, period.

totp(secret, counter)

Performs the operation. Takes secret, counter.

totpv(secret, code, window)

Performs the operation. Takes secret, code, window.

HOTP

hotpg(secret, counter, digits)

Performs the operation. Takes secret, counter, digits.

hotpv(secret, code, counter, window)

Performs the operation. Takes secret, code, counter, window.

QR code generation

totpq(issuer, account, secret, digits, period)

Performs the operation. Takes issuer, account, secret, digits, period.

hotpq(issuer, account, secret, counter)

Performs the operation. Takes issuer, account, secret, counter.

Backup codes

totpb(count)

Performs the operation. Takes count.

Time sync

totpt(ntp_server)

Performs the operation. Takes ntp_server.

Drift handling

totpc(secret, code, expected_step)

Performs the operation. Takes secret, code, expected_step.

Steam Guard

steam(shared_secret, time_offset)

Performs the operation. Takes shared_secret, time_offset.

Google Authenticator format

gauth(qr_data)

Performs the operation. Takes qr_data.

Authy import

authy(backup_file)

Performs the operation. Takes backup_file.

Multi-factor enrollment

mfaen(user_id, methods)

Encodes. Takes user_id, methods.

Verify MFA

verif(user_record, provided_codes)

Performs the operation. Takes user_record, provided_codes.

Rate limiting

mfara(attempts, max_attempts, window_secs)

Performs the operation. Takes attempts, max_attempts, window_secs.

Notes

TOTP/HOTP one-time password generation and verification.