mirror of
https://github.com/wneessen/apg-go.git
synced 2024-11-25 15:20:50 +01:00
Winni Neessen
9277e83fd4
To address issue #13, the password length behaviour of the original APG has been reproduced. Previously, when a minLength of 5 and a maxLength of 10 was given, apg-go se the pwLength to the preferred maxLength. With v0.3.1 it will choose a random length between minLength and maxLength instead, same as the original C-lang apg did. For this the minLength has been defaulted to a sane value of 12 (instead of the 8 of the original apg). The default for maxLength stayed at 20. Also the default number of generated passwords has been changed from 1 to 6, to replicate the behaviour of the original apg.
101 lines
4.2 KiB
Markdown
101 lines
4.2 KiB
Markdown
# A "Automated Password Generator"-clone
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_apg-go_ is a simple APG-like password generator written in Go. It tries to replicate the
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functionality of the
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"[Automated Password Generator](https://web.archive.org/web/20130313042424/http://www.adel.nursat.kz:80/apg)",
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which hasn't been maintained since 2003. Since more and more Unix distributions are abondoning the tool, I was
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looking for an alternative. FreeBSD for example recommends "security/makepasswd", which is written in Perl
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but requires a lot of dependency packages and doesn't offer the feature-set/flexibility of APG.
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Since FIPS-181 (pronouncable passwords) has been withdrawn in 2015, I didn't see any use in replicating that
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feature. Therfore apg-go does not support pronouncable passwords.
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## Installation
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### Binary releases
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#### Linux/BSD/MacOS
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* Download release
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```sh
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$ curl -LO https://github.com/wneessen/apg.go/releases/download/v<version>/apg-v<version>-<os>-<architecture>.tar.gz
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$ curl -LO https://github.com/wneessen/apg.go/releases/download/v<version>/apg-v<version>-<os>-<architecture>.tar.gz.sha256
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```
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* Verify the checksum
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```sh
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$ sha256 apg-v<version>-<os>-<architecture>.tar.gz
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$ cat apg-v<version>-<os>-<architecture>.tar.gz.sha256
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```
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**Make sure the checksum of the downloaded file and the checksum in the .sha256 match**
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* Extract archive
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```sh
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$ tar xzf apg-v<version>-<os>-<architecture>.tar.gz
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```
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* Execute
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```sh
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$ ./apg
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```
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#### Windows
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* Download release
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```PowerShell
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PS> Invoke-RestMethod -Uri https://github.com/wneessen/apg.go/releases/download/v<version>/apg-v<version>-windows-<architecture>.zip -OutFile apg-v<version>-windows-<architecure>.zip
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PS> Invoke-RestMethod -Uri https://github.com/wneessen/apg.go/releases/download/v<version>/apg-v<version>-windows-<architecture>.zip.sha256 -OutFile apg-v<version>-windows-<architecure>.zip.sha256
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```
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* Verify the checksum
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```PowerShell
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PS> Get-FileHash apg-v<version>-windows-<architecture>.zip | Format-List
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PS> type apg-v<version>-windows-<architecture>.zip.sha256
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```
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**Make sure the checksum of the downloaded file and the checksum in the .sha256 match**
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* Extract archive
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```PowerShell
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PS> Expand-Archive -LiteralPath apg-v<version>-windows-<architecture>
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```
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* Execute
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```PowerShell
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PS> cd apg-v<version>-windows-<architecture>
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PS> apg.exe
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```
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### Sources
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* Download sources
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```sh
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$ curl -LO https://github.com/wneessen/apg.go/archive/refs/tags/v<version>.tar.gz
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```
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* Extract source
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```sh
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$ tar xzf v<version>.tar.gz
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```
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* Build binary
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```sh
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$ cd apg.go-<version>
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$ go build -o apg ./...
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```
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* Execute the brand new binary
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```sh
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$ ./apg
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```
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### Systemwide installation
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It is recommed to install apg in a directory of your ```$PATH``` environment. To do so run:
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(In this example we use ```/usr/local/bin``` as system-wide binary path. YMMV)
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```sh
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$ sudo cp apg /usr/local/bin/apg
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```
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## CLI parameters
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_apg.go_ replicates some of the parameters of the original APG. Some parameters are different though:
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- ```-m <length>```: The minimum length of the password to be generated (Default: 12)
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- ```-x <length>```: The maximum length of the password to be generated (Default: 20)
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- ```-n <number of passwords>```: The amount of passwords to be generated (Default: 6)
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- ```-E <list of characters>```: Do not use the specified characters in generated passwords
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- ```-M <[LUNSHClunshc]>```: New style password parameters (upper-case enables, lower-case disables)
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- ```-L```: Use lower-case characters in passwords (Default: on)
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- ```-U```: Use upper-case characters in passwords (Default: on)
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- ```-N```: Use numeric characters in passwords (Default: on)
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- ```-S```: Use special characters in passwords (Default: off)
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- ```-H```: Avoid ambiguous characters in passwords (i. e.: 1, l, I, o, O, 0) (Default: off)
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- ```-C```: Generate complex passwords (implies -L -U -N -S and disables -H) (Default: off)
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- ```-l```: Spell generated passwords (Default: off)
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- ```-h```: Show a CLI help text
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- ```-v```: Show the version number
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