$pass = Get-Content c:\ps\passwordfile.txt | ConvertTo-SecureString -Key $keyĪs you can see, the password is not empty, so it has been successfully decrypted and may be used on other computers. $Cred.Password| ConvertFrom-SecureString –Key $key| Set-Content c:\ps\passwordfile.txt Then use the following instead of the key in both cases: Define clear text string for username and password string userName MyUserName string userPassword MySuperSecurePassword Convert to SecureString securestring secStringPassword ConvertTo-SecureString userPassword -AsPlainText -Force. If you don’t want to take the trouble of a separate file with the AES key, you can integrate the encryption key directly into the script. To create the SecureString object the following syntax is used. $pass = Get-Content c:\ps\passwordfile.txt | ConvertTo-SecureString -Key (get-content \\srv1\Shared\password_aes.key) You can transfer them to another computer and try to get the password from the file (you can store the file with the key in your shared network folder). So, you have got two files: a file containing the encrypted password (passwordfile.txt) and another one with the encryption key (password_aes.key). Save this key to the text file password_aes.key.ĭon’t forget that if you specify a domain account in your PowerShell script and your domain has a regular password change policy, you will have to update this file after each password change (you can create a separate password policy for the specific accounts using fine-grained password policies). From Plain Text String From Host Input Get Encrypted String From SecureString Get Plaintext String from SecureString Generate Random. You can specify the external encryption key using –Key or –SecureKey parameters.įor example, you can generate a 256-bit AES key in PowerShell and use it to decrypt the file. If the script is started under another user (service) account or on another computer, you will have to use another encryption method different from DPAPI. Change the value of argument "password" to a non-null value." "Cannot process argument because the value of argument "password" is null. ConvertTo-SecureString : Key not valid for use in specified state. You won’t be able to decrypt the password file without key. ![]() The -Persist flag turns it into a traditionally mapped drive and the name specifies the letter assigned. New-PSDrive -Persist -Name 'P' -Credential (Get-Credential) -PSProvider FileSystem -Root '\\server\share'. Get monthly updates about new articles, cheatsheets, and tricks. You could just keep it native Powershell and not bother with decrypting: Powershell. Read-Host -AsSecureString deploypassword ConvertTo-PlainText pwd pw. GetNetworkCredential() ) only exists on PSCredential objects. The matter is that DPAPI encryption uses the private keys stored in the user profile. How do I get the credentials (token) and pass it to the commands something. However, if you try and copy the passwordfile.txt to another computer or use for another user (not for the one who created the password), you will see that $creds.password variable is empty and doesn’t contain a password. Creating a PowerShell PSCredential object with username/password using secure/encrypted strings. This way you got a PSCredential object with user credentials in the $creds variable. ![]() $creds = New-Object -TypeName -ArgumentList $username, $pass SecurePassword Get-Content C:UserstmarshDocumentssecurePassword.txt ConvertTo-SecureString UnsecurePassword (New-Object PSCredential user. Next Topic: xo-credential - Convert a String to a PSCredential Object. This is kind of nice because it makes it a little harder for folks to get your password even if they can read your script file but comes with the nuisance that each time you move your script to a new machine or user you have to recreate your credential file.$pass = Get-Content c:\ps\passwordfile.txt | ConvertTo-SecureString I ran this once to create the XML file with the encrypted password string, and this is not part of the mail script. This command converts a plain text CVS file to a secured XML file. If you attempt to decrypt running as a different user, or from a different machine, it will fail to decrypt. ![]() "Username": we did not specify a key as an argument on ConvertFrom-SecureString, it has used the Windows Data Protection API (DPAPI) to encrypt the value to both the user and the machine it was running as/on when created.
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