如何使用 powershell 重新排序字符串以混淆隐藏的消息?
How to use powershell to reorder a string to obfuscate a hidden message?
只是为了好玩,一个朋友和我正在尝试寻找一种创造性的方式来使用 steganography.I 向彼此发送编码消息,偶然发现了如下所示的事情,我一直在努力尝试编写一个函数来使流程自动化。
this is a secret message
can be turned into:
("{2}{1}{0}{3}"-f'ecret m','is a s','this ','essage')
拆分字符串并使用重新排序似乎是可行的方法。
因此字符串需要在 5-10 个字符之间随机拆分
.
需要保存的原仓位索引
拆分需要调换
并且新索引排序为正确地重新排序消息
我真的很挣扎
感谢帮助
纯属娱乐....
$InputMessage = 'this is a secret message'
$SplittedString = $InputMessage -split '' | Select-Object -Skip 1 | Select-Object -SkipLast 1
[array]::Reverse($SplittedString)
foreach ($Character in $SplittedString) {
if ($Character -notin $CharacterList) {
[array]$CharacterList += $Character
}
}
foreach ($Character in ($InputMessage -split '' | Select-Object -Skip 1 | Select-Object -SkipLast 1)) {
$Index = [array]::indexof($CharacterList, $Character)
$Output += "{$Index}"
}
$Result = "'$Output' -f $(($CharacterList | ForEach-Object {"'$_'"}) -join ',')"
$Result
输出为:
'{6}{10}{9}{3}{5}{9}{3}{5}{2}{5}{3}{0}{8}{7}{0}{6}{5}{4}{0}{3}{3}{2}{1}{0}' -f 'e','g','a','s','m',' ','t','r','c','i','h'
输出为:
this is a secret message
现在,如果您想使用它,您可以删除花括号、引号、逗号和 -f
,只向数据添加数字和字符。 ;-)
不完全是你要找的东西,但这可能会给你一些开始的东西:
class Encode {
[string] $EncodedMessage
[int[]] $Map
[int] $EncodingComplexity = 3
Encode ([string] $Value) {
$this.Shuffle($Value)
}
Encode ([string] $Value, [int] $Complexity) {
$this.EncodingComplexity = $Complexity
$this.Shuffle($Value)
}
[void] Shuffle([string] $Value) {
$set = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!@#$%^&*()_-+=[{]};:<>|./?'
$ref = [Collections.Generic.HashSet[int]]::new()
$ran = [random]::new()
$enc = [char[]]::new($Value.Length * $this.EncodingComplexity)
for($i = 0; $i -lt $enc.Length; $i++) {
$enc[$i] = $set[$ran.Next($set.Length)]
}
for($i = 0; $i -lt $Value.Length; $i++) {
do {
$x = $ran.Next($enc.Length)
} until($ref.Add($x))
$enc[$x] = $Value[$i]
}
$this.EncodedMessage = [string]::new($enc)
$this.Map = $ref
}
}
class Decode {
static [string] DecodeMessage ([Encode] $Object) {
return [Decode]::DecodeMessage($Object.EncodedMessage, $Object.Map, $Object.EncodingComplexity)
}
static [string] DecodeMessage ([string] $EncodedMessage, [int[]] $Map) {
return [Decode]::DecodeMessage($EncodedMessage, $Map, 3)
}
static [string] DecodeMessage ([string] $EncodedMessage, [int[]] $Map, [int] $Complexity) {
$decoded = [char[]]::new($EncodedMessage.Length / $Complexity)
for($i = 0; $i -lt $decoded.Length; $i++) {
$decoded[$i] = $EncodedMessage[$Map[$i]]
}
return [string]::new($decoded)
}
}
编码消息:
PS /> $message = 'this is a secret message'
PS /> $encoded = [Encode] $message
PS /> $encoded
EncodingComplexity EncodedMessage Map
------------------ -------------- ---
3 B$h^elu2w#CeeHH^qa siQJ)t}es:.a3 ema=eN(GiIcsO;tst1 .fsg}eSUk7ms4 N>rfe# {49, 2, 41, 27…}
要解码消息,您可以使用 Encode
类型的对象,或者您可以将 Encoded Message 和 Map 给您的朋友对其进行解码 ;)
PS /> [Decode]::DecodeMessage($encoded)
this is a secret message
PS /> [Decode]::DecodeMessage('B$h^elu2w#CeeHH^qa siQJ)t}es:.a3 ema=eN(GiIcsO;tst1 .fsg}eSUk7ms4 N>rfe#', $encoded.Map)
this is a secret message
只是为了好玩,一个朋友和我正在尝试寻找一种创造性的方式来使用 steganography.I 向彼此发送编码消息,偶然发现了如下所示的事情,我一直在努力尝试编写一个函数来使流程自动化。
this is a secret message
can be turned into:
("{2}{1}{0}{3}"-f'ecret m','is a s','this ','essage')
拆分字符串并使用重新排序似乎是可行的方法。
因此字符串需要在 5-10 个字符之间随机拆分 .
需要保存的原仓位索引
拆分需要调换
并且新索引排序为正确地重新排序消息
我真的很挣扎 感谢帮助
纯属娱乐....
$InputMessage = 'this is a secret message'
$SplittedString = $InputMessage -split '' | Select-Object -Skip 1 | Select-Object -SkipLast 1
[array]::Reverse($SplittedString)
foreach ($Character in $SplittedString) {
if ($Character -notin $CharacterList) {
[array]$CharacterList += $Character
}
}
foreach ($Character in ($InputMessage -split '' | Select-Object -Skip 1 | Select-Object -SkipLast 1)) {
$Index = [array]::indexof($CharacterList, $Character)
$Output += "{$Index}"
}
$Result = "'$Output' -f $(($CharacterList | ForEach-Object {"'$_'"}) -join ',')"
$Result
输出为:
'{6}{10}{9}{3}{5}{9}{3}{5}{2}{5}{3}{0}{8}{7}{0}{6}{5}{4}{0}{3}{3}{2}{1}{0}' -f 'e','g','a','s','m',' ','t','r','c','i','h'
输出为:
this is a secret message
现在,如果您想使用它,您可以删除花括号、引号、逗号和 -f
,只向数据添加数字和字符。 ;-)
不完全是你要找的东西,但这可能会给你一些开始的东西:
class Encode {
[string] $EncodedMessage
[int[]] $Map
[int] $EncodingComplexity = 3
Encode ([string] $Value) {
$this.Shuffle($Value)
}
Encode ([string] $Value, [int] $Complexity) {
$this.EncodingComplexity = $Complexity
$this.Shuffle($Value)
}
[void] Shuffle([string] $Value) {
$set = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!@#$%^&*()_-+=[{]};:<>|./?'
$ref = [Collections.Generic.HashSet[int]]::new()
$ran = [random]::new()
$enc = [char[]]::new($Value.Length * $this.EncodingComplexity)
for($i = 0; $i -lt $enc.Length; $i++) {
$enc[$i] = $set[$ran.Next($set.Length)]
}
for($i = 0; $i -lt $Value.Length; $i++) {
do {
$x = $ran.Next($enc.Length)
} until($ref.Add($x))
$enc[$x] = $Value[$i]
}
$this.EncodedMessage = [string]::new($enc)
$this.Map = $ref
}
}
class Decode {
static [string] DecodeMessage ([Encode] $Object) {
return [Decode]::DecodeMessage($Object.EncodedMessage, $Object.Map, $Object.EncodingComplexity)
}
static [string] DecodeMessage ([string] $EncodedMessage, [int[]] $Map) {
return [Decode]::DecodeMessage($EncodedMessage, $Map, 3)
}
static [string] DecodeMessage ([string] $EncodedMessage, [int[]] $Map, [int] $Complexity) {
$decoded = [char[]]::new($EncodedMessage.Length / $Complexity)
for($i = 0; $i -lt $decoded.Length; $i++) {
$decoded[$i] = $EncodedMessage[$Map[$i]]
}
return [string]::new($decoded)
}
}
编码消息:
PS /> $message = 'this is a secret message'
PS /> $encoded = [Encode] $message
PS /> $encoded
EncodingComplexity EncodedMessage Map
------------------ -------------- ---
3 B$h^elu2w#CeeHH^qa siQJ)t}es:.a3 ema=eN(GiIcsO;tst1 .fsg}eSUk7ms4 N>rfe# {49, 2, 41, 27…}
要解码消息,您可以使用 Encode
类型的对象,或者您可以将 Encoded Message 和 Map 给您的朋友对其进行解码 ;)
PS /> [Decode]::DecodeMessage($encoded)
this is a secret message
PS /> [Decode]::DecodeMessage('B$h^elu2w#CeeHH^qa siQJ)t}es:.a3 ema=eN(GiIcsO;tst1 .fsg}eSUk7ms4 N>rfe#', $encoded.Map)
this is a secret message