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MIT License | ||
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Copyright (c) 2018 M. Moldabekov | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy | ||
of this software and associated documentation files (the "Software"), to deal | ||
in the Software without restriction, including without limitation the rights | ||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
copies of the Software, and to permit persons to whom the Software is | ||
furnished to do so, subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
SOFTWARE. |
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## gauth is a two-factor authentication agent. | ||
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### Usage: | ||
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gauth -add [-hotp] name | ||
gauth -list | ||
gauth name | ||
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To add a new key to keychain use "gauth -add name", where name is a given name. | ||
It'll prompt a 2fa key from stdin | ||
2fa keys are case-insensitive strings [A-Za-z2-7]. | ||
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Default generation algorithm is time based auth codes | ||
(TOTP - the same as Google Authenticator) | ||
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There is also *EXPERIMENTAL* support of counter based auth codes (HOTP). | ||
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To list all names in the keychain use `gauth -list` | ||
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To print certain 2fa auth code use `gauth name` | ||
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If no arguments are provided, gauth prints all 2fa TOTP auth codes. | ||
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**IMPORTANT NOTE:** | ||
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TOTP auth codes are derived from key hash and current time. | ||
Please ensure that system clock are adjusted via NTP. | ||
Acceptable fault threshold is about ~1 min. | ||
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The keychain itself is stored UNENCRYPTED in `$HOME/.gauth`. | ||
Take measures to encrypt your partitions (haven't you done this yet?) | ||
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### Example | ||
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While Google 2fa setup select "enter this text code instead" bypassing QR code scanning. You will get your 2fa secret - short string. | ||
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Add it to 2fa under the name google, typing the secret at the prompt: | ||
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$ gauth -add google | ||
gauth key for google: <secret> | ||
$ | ||
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Whenever Google prompts for a 2fa code, run gauth to obtain one: | ||
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$ gauth google | ||
438163 | ||
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### Greetings | ||
- Golang team | ||
- Russ C. | ||
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### Contributing | ||
All PR and Issues are welcome | ||
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### License | ||
(C) MIT License |
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