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ConvertTo-SecureString
Convert an encrypted standard string into a secure string, can also convert plain text into a secure string.
Syntax
ConvertTo-SecureString [-String] String
[[-secureKey] SecureString]
[CommonParameters]
ConvertTo-SecureString [-String] String
[-key Byte[]]
[CommonParameters]
ConvertTo-SecureString [-String] String
[[-asPlainText] [-force]]
[CommonParameters]
key
-String SecureString
The string to convert to a secure string
-secureKey SecureString
The encryption key as a secure string,
this is converted to a byte array before being used as the key.
Valid key lengths are 16, 24, and 32 bytes
-key Byte
The encryption key as a byte array.
Valid key lengths are 16, 24, and 32 bytes
-asPlainText
A plain text string to convert to a secure string.
The text is not encrypted so the input is not protected/confidential
To use this option, you must also specify -Force
-force
Set this to confirm that you understand the security risks of using PlainText
CommonParameters:
-Verbose, -Debug, -ErrorAction, -ErrorVariable, -WarningAction, -WarningVariable,
-OutBuffer -OutVariable.
If the standard string being converted was encrypted with ConvertFrom-SecureString using a specified key, that same key must be provided as the value of the Key or SecureKey parameter of the ConvertTo-SecureString cmdlet.
To store the data in a file for later use, the secure string can be converted back to an encrypted, standard string using ConvertFrom-SecureString
Examples
Create a secure string from plain text:
PS C:\> $my_secure_password = convertto-securestring "P@ssW0rD!" -asplaintext -force
Create a secure string using the Read-Host cmdlet:
PS C:\> $my_secure_password = read-host -assecurestring
Save an encrypted string to disc:
PS C:\> $my_encrypted_string = convertfrom-securestring $my_secure_password -key (1..16)
PS C:\> $my_encrypted_string > password.txt
Read an encrypted string from disc and convert back to a secure string:
PS C:\> $my_secure_password = convertto-securestring (get-content password.txt) -key (1..16)
“The great strength of the totalitarian state is that it forces those who fear it to imitate it” - Adolf Hitler
原文出處:ConvertTo-SecureString | PowerShell | SS64.com