(ROTP) Rust One Time Passwords

A simple HOTP and TOTP generator.

``` rotp 0.1.1 acheronfail acheronfail@gmail.com

USAGE: rotp

FLAGS: -h, --help Prints help information -V, --version Prints version information

SUBCOMMANDS: help Prints this message or the help of the given subcommand(s) hotp Generate a HOTP code totp Generate a TOTP code

```

Installation

bash cargo install rotp

Examples

```bash

Your OTP base32 encoded secret

export BASE32_SECRET="ALLYOURBASEAREBELONGTOUS"

HOTP

rotp hotp --secret "$BASE32SECRET" --counter 0 # 173468 rotp hotp --secret "$BASE32SECRET" --counter 1 # 676177 rotp hotp --secret "$BASE32_SECRET" --counter 1729 # 102510

TOTP

rotp totp --secret "$BASE32SECRET" --time 30 --skew 0 # 173468 rotp totp --secret "$BASE32SECRET" --time 3600 --skew 0 # 173468 rotp totp --secret "$BASE32SECRET" --time 30 --skew 0 # 676177 rotp totp --secret "$BASE32SECRET" --time 1 --skew -2 # 102510

Alternatively, arguments may be passed via STDIN:

echo hotp --secret "$BASE32SECRET" --counter 1729 | rotp # 102510 echo totp --secret "$BASE32SECRET" --time 1 --skew -2 | rotp # 102510 ```