A command line interface to manage and generate Time-based One Time Password (TOTP).
gotp <command> <parameters...>
add <LABEL> <HASH>:<BASE32-SECRET>[:DIGITS][:TIME-STEP][:ISSUER] Add a TOTP secret identified by unique LABEL. HASH is one of the valid hash function: SHA1, SHA256, or SHA512. BASE32-SECRET is the secret to generate one-time password encoded in base32. The DIGITS field is optional, define the number digits generated for password, default to 6. The TIME-STEP field is optional, its define the interval in seconds, default to 30 seconds. The ISSUER field is also optional, its define the name of provider that generate the secret. gen <LABEL> [N] Generate N number passwords using the secret identified by LABEL. import <PROVIDER> <FILE> Import the TOTP configuration from other provider. Currently, the only supported PROVIDER is Aegis and the supported file is .txt. list List all labels stored in the configuration. remove <LABEL> Remove LABEL from configuration. remove-private-key Decrypt the issuer's value (hash:secret...) using previous private key and store it back to file as plain text. rename <LABEL> <NEW-LABEL> Rename a LABEL into NEW-LABEL. set-private-key <PRIVATE-KEY-FILE> Encrypt the issuer's value (hash:secret...) in the file using private key. The supported private key is RSA.
On the first run, the gotp command will ask for path of private key. If the key exist, all the OTP values (excluding the label) will be encrypted. The private key must be RSA based.
One can skip inputting the private key by pressing enter, and the OTP configuration will be stored as plain text.
$USER_CONFIG_DIR/gotp/gotp.conf:: Path to file where the configuration and secret are stored.
Add "my-totp" to configuration using SHA1 as hash function, "GEZDGNBVGY3TQOJQ" as the secret, with 6 digits passwords, and 30 seconds as time step.
$ gotp add my-totp SHA1:GEZDGNBVGY3TQOJQ:6:30
Generate 3 recents passwords from "my-totp",
$ gotp gen my-totp 3 gotp: reading configuration from /home/$USER/.config/gotp/gotp.conf 847945 326823 767317
Import the exported Aegis TOTP from file,
$ gotp import aegis aegis-export-uri.txt gotp: reading configuration from /home/$USER/.config/gotp/gotp.conf OK
List all labels stored in the configuration,
$ gotp list gotp: reading configuration from /home/$USER/.config/gotp/gotp.conf my-totp
Remove a label "my-totp",
$ gotp remove my-totp gotp: reading configuration from /home/$USER/.config/gotp/gotp.conf OK
Rename a label "my-totp" to "my-otp",
$ gotp rename my-totp my-otp gotp: reading configuration from /home/$USER/.config/gotp/gotp.conf OK