![]() $encStr | ConvertFrom-SecureString -Key $key Securely store passwords on a cross-platform diskīecause the method of storing passwords covered in the last section is dependent on the Windows Data Protection API, it is Windows specific. To read the string, use the ConvertFrom-SecureString key: $encStr = Get-Content. You should store the key separately from the plaintext encrypted password. This string can only be decrypted by the same user on the same machine.Ĭhoose to specify a custom encryption key with the -Key parameter: $key = 0.255 | Get-Random -Count 32 | % ![]() If the -Key parameter is not specified, then the Windows Data Protection API secures the string. You can pipe this output directly into a file and know it is encrypted. The chances are low, but the privileges assigned to a service account running an automated script could be devastating in the wrong hands. This means that anything running on your system could potentially access any string variables in your PowerShell session. It might feel more secure because it is difficult to read PowerShell's memory indirectly, but PowerShell stores string variables in its memory in plain text. Once a password is committed and pushed to Git, it becomes part of Git's version history, and removing it can be complex.īesides writing plaintext passwords to a disk, an easy and innocent blunder is to store a password as a regular string in PowerShell. ![]() Dangers of plaintext passwordsĪll IT professionals know not to store passwords in plain text, but this especially applies to passwords in a version-controlled repository. ![]() Fortunately, the problems that we must solve in PowerShell are straightforward, but equally as important: We must store and handle passwords in a way that limits their exposure.
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