https://github.com/randy3k/otp

One Time Password Generation and Verification
https://github.com/randy3k/otp

Last synced: 11 days ago
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One Time Password Generation and Verification

• Host: GitHub
• URL: https://github.com/randy3k/otp
• Owner: randy3k
• License: other
• Created: 2020-04-24T03:31:19.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-01-23T06:12:33.000Z (10 months ago)
• Last Synced: 2024-10-19T05:57:30.955Z (20 days ago)
• Language: R
• Homepage: https://randy3k.github.io/otp
• Size: 205 KB
• Stars: 16
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.Rmd
  • License: LICENSE

Awesome Lists containing this project

• awesome-shiny-extensions - otp - One-Time Password generation and verification. (Backend / Authentication)
• jimsghstars - randy3k/otp - One Time Password Generation and Verification (R)

README

        
---

output: github_document

---

```{r, include = FALSE}

knitr::opts_knit$set(upload.fun = knitr::imgur_upload)

```

```{r results='asis', echo = FALSE, eval = TRUE}

d <- read.dcf("DESCRIPTION")

```

```{r results="asis", echo = FALSE, eval = TRUE}

title <- d[colnames(d) == "Title"]

cat(c("# ", paste(trimws(strsplit(title, "\n")[[1]]), collapse = " ")))

```

[![check](https://github.com/randy3k/otp/actions/workflows/check.yaml/badge.svg)](https://github.com/randy3k/otp/actions/workflows/check.yaml)

[![codecov](https://codecov.io/gh/randy3k/otp/branch/master/graph/badge.svg)](https://app.codecov.io/gh/randy3k/otp)

[![CRAN\_Status\_Badge](http://www.r-pkg.org/badges/version/otp)](https://cran.r-project.org/package=otp)

[![](http://cranlogs.r-pkg.org/badges/grand-total/otp)](https://cran.r-project.org/package=otp)

Github: [https://github.com/randy3k/otp](https://github.com/randy3k/otp)

Documentation: [https://randy3k.github.io/otp](https://randy3k.github.io/otp/)

```{r results="asis", echo = FALSE, eval = TRUE}

cat(d[colnames(d) == "Description"])

```

## Installation

You can install the released version of otp from [CRAN](https://CRAN.R-project.org) with:

``` r

install.packages("otp")

```

And the development version from [GitHub](https://github.com/) with:

``` r

# install.packages("devtools")

devtools::install_github("randy3k/otp")

```

## Example

```{r}

library(otp)

```

### HMAC based One Time Password (HOTP)

```{r}

p <- HOTP$new("JBSWY3DPEHPK3PXP")

p$at(8)

p$verify("964230", 8)

```

### Time based One Time Password (TOTP)

```{r}

p <- TOTP$new("JBSWY3DPEHPK3PXP")

(code <- p$now())

p$verify(code)

```

```{r, out.width = "20%"}

raster::image(

  qrencoder::qrencode_raster(p$provisioning_uri("otp")),

  asp = 1, col = c("white", "black"), axes = FALSE,

  xlab = "", ylab = ""

)

```

## Related projects

- Ruby's [rotp](https://github.com/mdp/rotp).

- Python's [pyotp](https://github.com/pyauth/pyotp).

- [ropt](https://github.com/wrathematics/rotp), an R library for client side one time password management.