PHP Class Google2FA, TeamPass

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Public Methods

Method	Description
base32_decode ( $b32 )	Decodes a base32 string into a binary string.
generate_secret_key ( $length = 16 ) : string	Generates a 16 digit secret key in base32 format
get_qr_code ( $username, $secret )
get_qr_code_url ( $username, $secret )
get_timestamp ( ) : integer	Returns the current Unix Timestamp devided by the KEYREGENERATION period.
oath_hotp ( binary $key, integer $counter ) : string	Takes the secret key and the timestamp and returns the one time password.
oath_truncate ( binary $hash ) : integer	Extracts the OTP from the SHA1 hash.
verify_key ( string $b32seed, string $key, integer $window = 4, boolean $useTimeStamp = true ) : boolean	Verifys a user inputted key against the current timestamp. Checks $window keys either side of the timestamp.

Decodes a base32 string into a binary string.

public base32_decode ( $b32 )

Generates a 16 digit secret key in base32 format

public generate_secret_key ( $length = 16 ) : string
return	string

public get_qr_code ( $username, $secret )

public get_qr_code_url ( $username, $secret )

Returns the current Unix Timestamp devided by the KEYREGENERATION period.

public get_timestamp ( ) : integer
return	integer

Takes the secret key and the timestamp and returns the one time password.

public oath_hotp ( binary $key, integer $counter ) : string
$key	binary	- Secret key in binary form.
$counter	integer	- Timestamp as returned by get_timestamp.
return	string

Extracts the OTP from the SHA1 hash.

public oath_truncate ( binary $hash ) : integer
$hash	binary
return	integer

Verifys a user inputted key against the current timestamp. Checks $window keys either side of the timestamp.

public verify_key ( string $b32seed, string $key, integer $window = 4, boolean $useTimeStamp = true ) : boolean
$b32seed	string
$key	string	- User specified key
$window	integer
$useTimeStamp	boolean
return	boolean