A simple Powershell credentials store

credential-store-examples.ps1

# See also: http://lets-share.senktas.net/2017/06/powershell-simple-credentials-store.html
# See also: https://www.powershellgallery.com/packages/sitecore-automation/1.3.0.0

# Uncomment two below lines for a first use
#Install-Module Sitecore-Automation -Force -Verbose 
#Import-Module Sitecore-Automation -Force -Verbose

# Create a new credentials 
New-StoredCredential -Key "SMTP-Server" -Username "SMTP-User" -Password ( "password" | ConvertTo-SecureString -AsPlainText -Force)
New-StoredCredential -Key "SQL-Server" -Username "SQL-User" -Password ( "password" | ConvertTo-SecureString -AsPlainText -Force)

$file = Join-Path "C:\Temp" -ChildPath 'credentials.csv'
		
#Export credentials to the CSV file
Export-CredentialStore -Path $file

# reset credential store
$script:credentialsStore = @()
		
# Read credentials from a CSV file
Import-CredentialStore -Path $file

$item1 = Get-StoredCredential -Key "SMTP-Server" 
$item2 = Get-StoredCredential -Key "SQL-Server"

# Decrypt data
ConvertTo-PlainText -Secret $item1.Username | Write-Output
ConvertTo-PlainText -Secret $item1.Password | Write-Output
ConvertTo-PlainText -Secret $item2.Username | Write-Output
ConvertTo-PlainText -Secret $item2.Password | Write-Output