dgoogauth | Google Authenticator for Go | Authentication library

by dgryski Go Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | dgoogauth Summary

dgoogauth is a Go library typically used in Security, Authentication applications. dgoogauth has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This is a Go implementation of the Google Authenticator library. Copyright (c) 2012 Damian Gryski damian@gryski.com This code is licensed under the Apache License, version 2.0.

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dgoogauth has a low active ecosystem.

It has 364 star(s) with 48 fork(s). There are 13 watchers for this library.

It had no major release in the last 6 months.

There are 2 open issues and 2 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of dgoogauth is current.

Quality

dgoogauth has 0 bugs and 0 code smells.

Security

dgoogauth has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

dgoogauth code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

dgoogauth does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

dgoogauth releases are not available. You will need to build from source code and install.

It has 335 lines of code, 13 functions and 2 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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dgoogauth Key Features

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dgoogauth Examples and Code Snippets

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Community Discussions

Trending Discussions on dgoogauth

How to Handle 26-Byte Secret for Time-based One Time Password?

QUESTION

How to Handle 26-Byte Secret for Time-based One Time Password?

Asked 2022-Apr-02 at 04:15

Secret of Time-based One Time Password are usually 16-byte base32 encoded string. e.g. GitHub 2FA.

But for some scenario, it has 26 bytes long. e.g. Tutanota OTP. Often in lower case with whitespaces, like: vev2 qjea un45 3sr4 q4h3 ais4 ci

I tried with the TOTP algorithm implemented in dgryski/dgoogauth and tilaklodha/google-authenticator. Both can handle 16-byte secret well, but got error for 26-byte secret.

e.g. for 16-byte secret VEV2QJEAUN453SR4:

...

ANSWER

Answered 2022-Apr-02 at 04:15

A base32 encodes every 5 bits of input bytes into base32 character, go base32 use The RFC 4648 Base 32 alphabet (A-Z, 2-7). When decode a string to bytes, each base32 character input will be mapped to a 5 bit index then recompose to bytes.

In your example "VEV2QJEAUN453SR4Q4H3AIS4CI", the previous "VEV2QJEAUN453SR4" was already valid input, it is a 16 char input, and 5 bit * 16 is 80 bit so it can be resolved into 10 bytes output. Now let us just look at the rest "Q4H3AIS4CI", 10 char -> 5 * 10 = 50 bits, the previous 40 bits can be decode to 5 bytes, but the last 2 char "CI" leads 2 bit remainder

Source https://stackoverflow.com/questions/70389299

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install dgoogauth

You can download it from GitHub.

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