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39
README.md
39
README.md
@ -1,9 +1,38 @@
|
|||||||
# GoPass
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# GoPass
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||||||
An easy to use command-line password generator that creates secure passwords (Version 1.1 adds proper cryptographic seeding of math/rand)
|
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||||||
|
An easy to use command-line password generator that creates secure passwords
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||||||
|
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||||||
# Usage:
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# Usage:
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<code>./gopass [number of characters]</code><br>
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||||||
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`./gopass [number of characters]`<br>
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or <br>
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`./gopass [number of characters] -r=[excluded characters] [-s to remove all symbols]`
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<hr>
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<hr>
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eg:
|
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<code>./gopass 32</code><br>
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eg: `./gopass 32` <br>
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||||||
output: <code>E$bGOiiPASS*,ISl{!MJ&<\[COOL0eVw</code>
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output: `E$bGOiiPASS*,ISl{!MJ&<\[COOL0eVw` <br>
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eg: (with excluded characters): `./gopass 32 -r=$,!` <br>
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output: `EYbGOiiPASS*2ISl{?MJ&<\[COOL0eVw` <- note the excluded characters are not present in the output <br>
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eg: `./gopass 32 -s` <br>
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output: `LEYbGOiiPASS2ISlMJCOOL0eRt3KPOVw` <- note the symbols are not present in the output <br>
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eg: `./gopass 32 -r=$,! -s` the -r and -s flags can be combined <br>
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||||||
|
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||||||
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# How to install/use for Windows:
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||||||
|
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||||||
|
1. Download Windows binary, it may be helpful to simply rename it to "gopass.exe" (make sure to add .exe, this won't
|
||||||
|
need to
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be typed to execute the file from the CLI, but it is required for Windows to recognize the binary) to keep
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commands shorter.
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2. Move the file to your `C:\Users\[Username]` directory
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3. Opening the console *without* Administrator privileges will put you in the directory mentioned above by default
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4. Now type `gopass [number of characters]` (Ex. `gopass 64`) to generate a new password!
|
||||||
|
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||||||
|
# How to install/use for Linux:
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||||||
|
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1. Download Linux binary, it may be helpful to simply rename it to "gopass" to keep commands shorter.
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|
2. Move the file to your home directory.
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3. `chmod +x gopass` if necessary
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3. Opening your terminal should put you in your home directory by default, if not, just type `cd` to get sent back to
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|
home.
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||||||
|
4. Now type `./gopass [number of characters]` (Ex. `./gopass 64`) to generate a new password!
|
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BIN
bin/gopass-darwin-amd64-1.3.1
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BIN
bin/gopass-darwin-amd64-1.3.1
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bin/gopass-freebsd-386-1.3.1
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bin/gopass-freebsd-386-1.3.1
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bin/gopass-freebsd-amd64-1.3.1
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bin/gopass-freebsd-amd64-1.3.1
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bin/gopass-freebsd-arm-1.3.1
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bin/gopass-freebsd-arm-1.3.1
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bin/gopass-linux-386-1.3.1
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bin/gopass-linux-386-1.3.1
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bin/gopass-linux-amd64-1.3.1
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bin/gopass-linux-amd64-1.3.1
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bin/gopass-linux-arm-1.3.1
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bin/gopass-linux-arm-1.3.1
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bin/gopass-plan9-386-1.3.1
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bin/gopass-plan9-386-1.3.1
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bin/gopass-plan9-amd64-1.3.1
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bin/gopass-plan9-amd64-1.3.1
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bin/gopass-plan9-arm-1.3.1
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bin/gopass-plan9-arm-1.3.1
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bin/gopass-windows-386-1.3.1
Normal file
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bin/gopass-windows-386-1.3.1
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bin/gopass-windows-amd64-1.3.1
Normal file
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bin/gopass-windows-amd64-1.3.1
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bin/gopass-windows-arm-1.3.1
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bin/gopass-windows-arm-1.3.1
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134
main.go
134
main.go
@ -1,45 +1,131 @@
|
|||||||
// GoPass
|
// GoPass
|
||||||
// Author: Maximilian Patterson
|
// Author: Maximilian Patterson
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||||||
// Version: 1.1
|
|
||||||
package main
|
package main
|
||||||
|
|
||||||
import (
|
import (
|
||||||
cryptorand "crypto/rand"
|
"crypto/rand"
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"encoding/binary"
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"fmt"
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"fmt"
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mathrand "math/rand"
|
"math/big"
|
||||||
"os"
|
"os"
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||||||
|
"runtime"
|
||||||
"strconv"
|
"strconv"
|
||||||
|
"strings"
|
||||||
)
|
)
|
||||||
|
|
||||||
var runes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890`~!@#$%^&*()_+[]\\{}|;':,./<>?")
|
var allowedCharacters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890`~!@#$%^&*()_+[]\\{}|;':,./<>?")
|
||||||
|
|
||||||
func main() {
|
const (
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||||||
// Take OS arg (only accepts one arg)
|
Version = "1.3.1"
|
||||||
arg := os.Args[1]
|
symbols = "`~!@#$%^&*()_+[]\\{}|;':,./<>?"
|
||||||
|
chunkSize = 16 // The size of each chunk of the password to be generated by the worker goroutines
|
||||||
|
)
|
||||||
|
|
||||||
// Convert String arg to int
|
func matchArguments(args []string) string {
|
||||||
size, err := strconv.Atoi(arg)
|
// If there are no arguments
|
||||||
if err != nil {
|
if len(args) == 0 {
|
||||||
panic(err)
|
return "No password length specified! (ex: gopass 16)"
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// First argument is special, must be an integer, -v, or -h
|
||||||
|
var size = 0 // Password length
|
||||||
|
switch args[0] {
|
||||||
|
case "-v":
|
||||||
|
return "GoPass version " + Version
|
||||||
|
case "-h":
|
||||||
|
return "GoPass - A simple password generator written in Go\n" +
|
||||||
|
"Usage: gopass [length] [disallowed characters] [optional remove symbols -s]\n" +
|
||||||
|
" Example: gopass 16\n" +
|
||||||
|
" Example: gopass 16 -r=abc123!@#\n" +
|
||||||
|
" Example: gopass 16 -s\n" +
|
||||||
|
"\nFor help (this output): gopass -h\n" +
|
||||||
|
"For version: gopass -v\n"
|
||||||
|
default:
|
||||||
|
err := error(nil)
|
||||||
|
size, err = strconv.Atoi(args[0])
|
||||||
|
if err != nil {
|
||||||
|
return "Invalid first argument (\"" + args[0] + "\") supplied! (Type gopass -h for help)"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
for i := 1; i < len(args); i++ {
|
||||||
|
v := args[i]
|
||||||
|
switch {
|
||||||
|
case v == "-s":
|
||||||
|
removeDisallowed([]rune(symbols))
|
||||||
|
case strings.HasPrefix(v, "-r="):
|
||||||
|
// Remove all characters after the = until next whitespace
|
||||||
|
removeDisallowed([]rune(v[2:]))
|
||||||
|
default:
|
||||||
|
return "Invalid argument (\"" + v + "\") supplied! (Type gopass -h for help)"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if size <= 0 {
|
||||||
|
return "No/invalid password length specified! (ex: gopass 16)"
|
||||||
|
} else {
|
||||||
|
return generatePassword(size)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Remove all disallowed characters from the allowedCharacters slice
|
||||||
|
func removeDisallowed(disallowed []rune) {
|
||||||
|
disallowedMap := make(map[rune]bool, len(disallowed))
|
||||||
|
for _, r := range disallowed {
|
||||||
|
disallowedMap[r] = true
|
||||||
|
}
|
||||||
|
|
||||||
|
i := 0
|
||||||
|
for _, v := range allowedCharacters {
|
||||||
|
if !disallowedMap[v] {
|
||||||
|
allowedCharacters[i] = v
|
||||||
|
i++
|
||||||
|
}
|
||||||
|
}
|
||||||
|
allowedCharacters = allowedCharacters[:i]
|
||||||
|
}
|
||||||
|
|
||||||
|
func generatePassword(size int) string {
|
||||||
// Make empty array of runes with size of size
|
// Make empty array of runes with size of size
|
||||||
pass := make([]rune, size)
|
pass := make([]rune, size)
|
||||||
|
|
||||||
// Seed rand with time
|
// Create a channel to receive chunks of the password
|
||||||
var b [8]byte
|
passChan := make(chan []rune)
|
||||||
_, err = cryptorand.Read(b[:])
|
|
||||||
if err != nil {
|
|
||||||
panic("Error securely seeding rand!")
|
|
||||||
}
|
|
||||||
mathrand.Seed(int64(binary.LittleEndian.Uint64(b[:])))
|
|
||||||
|
|
||||||
// Assign every slot of pass to a random rune (generate rand int of length runes to select)
|
// Determine the number of worker goroutines to use
|
||||||
for i := range pass {
|
numWorkers := runtime.NumCPU()
|
||||||
pass[i] = runes[mathrand.Intn(len(runes))]
|
|
||||||
|
// Launch the worker goroutines
|
||||||
|
for i := 0; i < numWorkers; i++ {
|
||||||
|
go func() {
|
||||||
|
allowedLen := len(allowedCharacters)
|
||||||
|
for {
|
||||||
|
// Generate a chunk of the password
|
||||||
|
chunk := make([]rune, chunkSize)
|
||||||
|
for i := range chunk {
|
||||||
|
index, err := rand.Int(rand.Reader, big.NewInt(int64(allowedLen)))
|
||||||
|
if err != nil {
|
||||||
|
println("Error securely generating random character chunk!")
|
||||||
|
return
|
||||||
|
}
|
||||||
|
chunk[i] = allowedCharacters[index.Int64()]
|
||||||
|
}
|
||||||
|
|
||||||
|
// Send the chunk of the password to the main goroutine
|
||||||
|
passChan <- chunk
|
||||||
|
}
|
||||||
|
}()
|
||||||
}
|
}
|
||||||
|
|
||||||
// Print the pass :D
|
// Collect the chunks of the password from the channel
|
||||||
fmt.Println(string(pass))
|
for i := 0; i < size; i += chunkSize {
|
||||||
|
chunk := <-passChan
|
||||||
|
copy(pass[i:], chunk)
|
||||||
|
}
|
||||||
|
|
||||||
|
return string(pass)
|
||||||
|
}
|
||||||
|
|
||||||
|
func main() {
|
||||||
|
// Process arguments
|
||||||
|
fmt.Println(matchArguments(os.Args[1:]))
|
||||||
}
|
}
|
||||||
|
87
makefile
Normal file
87
makefile
Normal file
@ -0,0 +1,87 @@
|
|||||||
|
# The current version number of the program
|
||||||
|
VERSION := 1.3.1
|
||||||
|
|
||||||
|
# List of OS and architecture combinations to build
|
||||||
|
BUILD_OS_ARCH := \
|
||||||
|
darwin/amd64 \
|
||||||
|
freebsd/386 \
|
||||||
|
freebsd/amd64 \
|
||||||
|
freebsd/arm \
|
||||||
|
linux/386 \
|
||||||
|
linux/amd64 \
|
||||||
|
linux/arm \
|
||||||
|
plan9/386 \
|
||||||
|
plan9/amd64 \
|
||||||
|
plan9/arm \
|
||||||
|
windows/386 \
|
||||||
|
windows/amd64 \
|
||||||
|
windows/arm
|
||||||
|
|
||||||
|
# Build all targets
|
||||||
|
all: $(BUILD_OS_ARCH)
|
||||||
|
|
||||||
|
# Build targets in the form of `OS/ARCH`
|
||||||
|
darwin/amd64:
|
||||||
|
GOOS=darwin \
|
||||||
|
GOARCH=amd64 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-darwin-amd64-$(VERSION)" main.go
|
||||||
|
|
||||||
|
freebsd/386:
|
||||||
|
GOOS=freebsd \
|
||||||
|
GOARCH=386 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-freebsd-386-$(VERSION)" main.go
|
||||||
|
|
||||||
|
freebsd/amd64:
|
||||||
|
GOOS=freebsd \
|
||||||
|
GOARCH=amd64 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-freebsd-amd64-$(VERSION)" main.go
|
||||||
|
|
||||||
|
freebsd/arm:
|
||||||
|
GOOS=freebsd \
|
||||||
|
GOARCH=arm \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-freebsd-arm-$(VERSION)" main.go
|
||||||
|
|
||||||
|
linux/386:
|
||||||
|
GOOS=linux \
|
||||||
|
GOARCH=386 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-linux-386-$(VERSION)" main.go
|
||||||
|
|
||||||
|
linux/amd64:
|
||||||
|
GOOS=linux \
|
||||||
|
GOARCH=amd64 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-linux-amd64-$(VERSION)" main.go
|
||||||
|
|
||||||
|
linux/arm:
|
||||||
|
GOOS=linux \
|
||||||
|
GOARCH=arm \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-linux-arm-$(VERSION)" main.go
|
||||||
|
|
||||||
|
plan9/386:
|
||||||
|
GOOS=plan9 \
|
||||||
|
GOARCH=386 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-plan9-386-$(VERSION)" main.go
|
||||||
|
|
||||||
|
plan9/amd64:
|
||||||
|
GOOS=plan9 \
|
||||||
|
GOARCH=amd64 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-plan9-amd64-$(VERSION)" main.go
|
||||||
|
|
||||||
|
plan9/arm:
|
||||||
|
GOOS=plan9 \
|
||||||
|
GOARCH=arm \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-plan9-arm-$(VERSION)" main.go
|
||||||
|
|
||||||
|
windows/386:
|
||||||
|
GOOS=windows \
|
||||||
|
GOARCH=386 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-windows-386-$(VERSION)" main.go
|
||||||
|
|
||||||
|
windows/amd64:
|
||||||
|
GOOS=windows \
|
||||||
|
GOARCH=amd64 \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-windows-amd64-$(VERSION)" main.go
|
||||||
|
|
||||||
|
windows/arm:
|
||||||
|
GOOS=windows \
|
||||||
|
GOARCH=arm \
|
||||||
|
go build -ldflags="-s -w" -o "gopass-windows-arm-$(VERSION)" main.go
|
Loading…
Reference in New Issue
Block a user