totp

A CFML Implementation of Time-based One-time Passwords

Inspiration

• Java TOTP
• totp-generator
• Base32

Installation

Install via CommandBox and ForgeBox: box install totp

If you install manually, you need to download the CFzxing library to /modules/CFzxing.

Usage

Obtain a new instance of TOTP using WireBox or simplying by creating a new instance (new TOTP()).

WireBox/ColdBox is NOT required to use this module.

You can view an example of using this library by viewing the index.cfm file in the root of this module.

generate

Generates a secret, authenticator url, and a QR code for a given email and issuer. The secret should be stored securely and associated to the user who created it. It is also recommended that you have the user verify a code using the secret before saving the secret.

Name	Type	Required	Default	Description
email	string	true		The email address of the user associated with this secret.
issuer	string	true		The name of the issuer of this secret.
length	numeric	false	32	The length of the secret key.
width	numeric	false	128	The width of the QR code.
height	numeric	false	128	The height of the QR code.

generateSecret

Generates a Base32 string to use as a secret key when generating and verifying TOTPs. This key should be stored securely and associated to the user who created it. It is also recommended that you have the user verify a code using the secret before saving the secret.

Name	Type	Required	Default	Description
length	numeric	false	32	The length of the secret key.

generateUrl

Generates a URL to use with authenticator apps containing the email, issuer, and generated secret key.

Name	Type	Required	Default	Description
email	string	true		The email address of the user associated with this secret.
issuer	string	true		The name of the issuer of this secret.
length	numeric	false	32	The length of the secret key.

generateQRCode

Generates a QR Code to use with authenticator apps containing the authenticator url.

Name	Type	Required	Default	Description
authenticatorUrl	string	true		The authenticator url to encode in a QR code, usually from calling generateUrl.
width	numeric	false	128	The width of the QR code.
height	numeric	false	128	The height of the QR code.

generateRecoveryCodes

Generates an array of recovery codes.

Each code composed of numbers and lower case characters from latin alphabet (36 possible characters). The code is split in groups separated with dash for better readability. For example: 4ckn-xspn-et8t-xgr0

Name	Type	Required	Default	Description
amount	numeric	true		The amount of codes to generate.

generateCode

Generates a Time-based One-time Password (TOTP) for a given secret.

Name	Type	Required	Default	Description
secret	string	true		The Base32 string to use when generating the code.
digits	numeric	false	6	The number of digits of the code to return.
algorithm	string	false	"SHA1"	The algorithm to use when generating the code. Valid algorithms are: MD5, SHA1, SHA256, SHA384, SHA512.
time	numeric	false	now	The current time (expressed as seconds since January 1, 1970).
timePeriod	numeric	false	30	The time period the code is valid, in seconds.

verifyCode

Verifies a given TOTP for a given secret.

Name	Type	Required	Default	Description
secret	string	true		The Base32 string to use when verifying the code. (This needs to be the same secret used to generate the code.)
code	string	true		The code to verify.
algorithm	string	false	"SHA1"	The algorithm to use when verifying the code. (This needs to be the same algorithm used to generate the code.) Valid algorithms are: MD5, SHA1, SHA256, SHA384, SHA512.
time	numeric	false	now	The current time (expressed as seconds since January 1, 1970).
timePeriod	numeric	false	30	The time period the code is valid, in seconds.
allowedTimePeriodDiscrepancy	numeric	false	1	The number of periods, before and after, a code is considered valid. By default, a code is valid for 30 seconds before to 30 seconds after its valid period for a total of 90 seconds.