internal/ConvertFrom-SecureStringAsPlainText.ps1

<#
.SYNOPSIS
    Convert/Decrypt SecureString to Plain Text String.
.EXAMPLE
    PS C:\>ConvertFrom-SecureStringAsPlainText (ConvertTo-SecureString 'SuperSecretString' -AsPlainText -Force) -Force
    Convert plain text to SecureString and then convert it back.
.INPUTS
    System.Security.SecureString
#>

function ConvertFrom-SecureStringAsPlainText {
    [CmdletBinding()]
    [OutputType([string])]
    param (
        # Secure String Value
        [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true)]
        [securestring] $SecureString,
        # Confirms that you understand the implications of using the AsPlainText parameter and still want to use it.
        [Parameter(Mandatory = $true)]
        [switch] $Force
    )

    try {
        [IntPtr] $BSTR = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($SecureString)
        Write-Output ([System.Runtime.InteropServices.Marshal]::PtrToStringBSTR($BSTR))
    }
    finally {
        [System.Runtime.InteropServices.Marshal]::ZeroFreeBSTR($BSTR)
    }
}

# SIG # Begin signature block
# MIIZrAYJKoZIhvcNAQcCoIIZnTCCGZkCAQExDzANBglghkgBZQMEAgEFADB5Bgor
# BgEEAYI3AgEEoGswaTA0BgorBgEEAYI3AgEeMCYCAwEAAAQQH8w7YFlLCE63JNLG
# KX7zUQIBAAIBAAIBAAIBAAIBADAxMA0GCWCGSAFlAwQCAQUABCCtuhG7TuCIrN6m
# nVbOp5aEJlA1NkH96lAJf+HnUS/P56CCFJUwggT+MIID5qADAgECAhANQkrgvjqI
# /2BAIc4UAPDdMA0GCSqGSIb3DQEBCwUAMHIxCzAJBgNVBAYTAlVTMRUwEwYDVQQK
# EwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xMTAvBgNV
# BAMTKERpZ2lDZXJ0IFNIQTIgQXNzdXJlZCBJRCBUaW1lc3RhbXBpbmcgQ0EwHhcN
# MjEwMTAxMDAwMDAwWhcNMzEwMTA2MDAwMDAwWjBIMQswCQYDVQQGEwJVUzEXMBUG
# A1UEChMORGlnaUNlcnQsIEluYy4xIDAeBgNVBAMTF0RpZ2lDZXJ0IFRpbWVzdGFt
# cCAyMDIxMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwuZhhGfFivUN
# CKRFymNrUdc6EUK9CnV1TZS0DFC1JhD+HchvkWsMlucaXEjvROW/m2HNFZFiWrj/
# ZwucY/02aoH6KfjdK3CF3gIY83htvH35x20JPb5qdofpir34hF0edsnkxnZ2OlPR
# 0dNaNo/Go+EvGzq3YdZz7E5tM4p8XUUtS7FQ5kE6N1aG3JMjjfdQJehk5t3Tjy9X
# tYcg6w6OLNUj2vRNeEbjA4MxKUpcDDGKSoyIxfcwWvkUrxVfbENJCf0mI1P2jWPo
# GqtbsR0wwptpgrTb/FZUvB+hh6u+elsKIC9LCcmVp42y+tZji06lchzun3oBc/gZ
# 1v4NSYS9AQIDAQABo4IBuDCCAbQwDgYDVR0PAQH/BAQDAgeAMAwGA1UdEwEB/wQC
# MAAwFgYDVR0lAQH/BAwwCgYIKwYBBQUHAwgwQQYDVR0gBDowODA2BglghkgBhv1s
# BwEwKTAnBggrBgEFBQcCARYbaHR0cDovL3d3dy5kaWdpY2VydC5jb20vQ1BTMB8G
# A1UdIwQYMBaAFPS24SAd/imu0uRhpbKiJbLIFzVuMB0GA1UdDgQWBBQ2RIaOpLqw
# Zr68KC0dRDbd42p6vDBxBgNVHR8EajBoMDKgMKAuhixodHRwOi8vY3JsMy5kaWdp
# Y2VydC5jb20vc2hhMi1hc3N1cmVkLXRzLmNybDAyoDCgLoYsaHR0cDovL2NybDQu
# ZGlnaWNlcnQuY29tL3NoYTItYXNzdXJlZC10cy5jcmwwgYUGCCsGAQUFBwEBBHkw
# dzAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tME8GCCsGAQUF
# BzAChkNodHRwOi8vY2FjZXJ0cy5kaWdpY2VydC5jb20vRGlnaUNlcnRTSEEyQXNz
# dXJlZElEVGltZXN0YW1waW5nQ0EuY3J0MA0GCSqGSIb3DQEBCwUAA4IBAQBIHNy1
# 6ZojvOca5yAOjmdG/UJyUXQKI0ejq5LSJcRwWb4UoOUngaVNFBUZB3nw0QTDhtk7
# vf5EAmZN7WmkD/a4cM9i6PVRSnh5Nnont/PnUp+Tp+1DnnvntN1BIon7h6JGA078
# 9P63ZHdjXyNSaYOC+hpT7ZDMjaEXcw3082U5cEvznNZ6e9oMvD0y0BvL9WH8dQgA
# dryBDvjA4VzPxBFy5xtkSdgimnUVQvUtMjiB2vRgorq0Uvtc4GEkJU+y38kpqHND
# Udq9Y9YfW5v3LhtPEx33Sg1xfpe39D+E68Hjo0mh+s6nv1bPull2YYlffqe0jmd4
# +TaY4cso2luHpoovMIIFJjCCBA6gAwIBAgIQCm8Gpkn9Nk686mPMJKDEczANBgkq
# hkiG9w0BAQsFADByMQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5j
# MRkwFwYDVQQLExB3d3cuZGlnaWNlcnQuY29tMTEwLwYDVQQDEyhEaWdpQ2VydCBT
# SEEyIEFzc3VyZWQgSUQgQ29kZSBTaWduaW5nIENBMB4XDTIwMDMzMTAwMDAwMFoX
# DTIzMDQwNTEyMDAwMFowYzELMAkGA1UEBhMCVVMxDTALBgNVBAgTBE9oaW8xEzAR
# BgNVBAcTCkNpbmNpbm5hdGkxFzAVBgNVBAoTDkphc29uIFRob21wc29uMRcwFQYD
# VQQDEw5KYXNvbiBUaG9tcHNvbjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC
# ggEBAMVnygZO0wvpQ3NjGpEREqp0r/FN5C0X0Gn6HxrhPXAyGZaBlEjV0eO6bz8N
# BVFwyHsQ0BFxT7CrGvCCwvekm7bqIZaIJe9kFYAvOVBDK+S042dGaT8cUSxU6QIk
# gXL2IZKZu8R8H0+26rehGpadj+onbqzFshaS8C18/1oFv27W/3FeOwAkXbE8Mbpu
# c9ntR/6PUV4biw3AYUITVps0PmfTB1f06DmrbWa3orHVDO1yEL/E1hoe0jpXPAHz
# vtNlLMtZg5LeRrGdkfasq8V94XicNWU8XFy6D5cFlIg0RPcSzMJRJb78nfpQInrp
# DAagviDCUVR5ZwLsvDk096h8kCUCAwEAAaOCAcUwggHBMB8GA1UdIwQYMBaAFFrE
# uXsqCqOl6nEDwGD5LfZldQ5YMB0GA1UdDgQWBBS+5845JPvDWenjXahLo4XUCcTn
# MjAOBgNVHQ8BAf8EBAMCB4AwEwYDVR0lBAwwCgYIKwYBBQUHAwMwdwYDVR0fBHAw
# bjA1oDOgMYYvaHR0cDovL2NybDMuZGlnaWNlcnQuY29tL3NoYTItYXNzdXJlZC1j
# cy1nMS5jcmwwNaAzoDGGL2h0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9zaGEyLWFz
# c3VyZWQtY3MtZzEuY3JsMEwGA1UdIARFMEMwNwYJYIZIAYb9bAMBMCowKAYIKwYB
# BQUHAgEWHGh0dHBzOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwCAYGZ4EMAQQBMIGE
# BggrBgEFBQcBAQR4MHYwJAYIKwYBBQUHMAGGGGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0
# LmNvbTBOBggrBgEFBQcwAoZCaHR0cDovL2NhY2VydHMuZGlnaWNlcnQuY29tL0Rp
# Z2lDZXJ0U0hBMkFzc3VyZWRJRENvZGVTaWduaW5nQ0EuY3J0MAwGA1UdEwEB/wQC
# MAAwDQYJKoZIhvcNAQELBQADggEBAER9rMHu+w+qJrQmh6at6GrAPYuHi2zuU04n
# dRRzTSmHUKvzS1DvEYxLp6cO//3gHEqBV1S0YV58Rn5idMii7fmANSfO1Og4x77/
# CmmnpwB8aoSCpbRxqcIBE+pUm7r7JBT4xNEKT3FkgcpVymE4VuIscBgnekEmmaVf
# Doh1Xm4cQ+hvtyZ8+3+bNQ/Oe008RSk5zmiWiS++eGeB1D5v6yLs2bHAHldKKCp8
# Mg322VqRB2C9bFlQSxS97FB/s4J4jGxjSSl6MmcYLzkw+Copc5/9c1QEzBe+9rZM
# aAPwb6e977tkFtFOCfiekESAjku2NPqjj83EtLOOllrv3r81oWcwggUwMIIEGKAD
# AgECAhAECRgbX9W7ZnVTQ7VvlVAIMA0GCSqGSIb3DQEBCwUAMGUxCzAJBgNVBAYT
# AlVTMRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2Vy
# dC5jb20xJDAiBgNVBAMTG0RpZ2lDZXJ0IEFzc3VyZWQgSUQgUm9vdCBDQTAeFw0x
# MzEwMjIxMjAwMDBaFw0yODEwMjIxMjAwMDBaMHIxCzAJBgNVBAYTAlVTMRUwEwYD
# VQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xMTAv
# BgNVBAMTKERpZ2lDZXJ0IFNIQTIgQXNzdXJlZCBJRCBDb2RlIFNpZ25pbmcgQ0Ew
# ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQD407Mcfw4Rr2d3B9MLMUkZ
# z9D7RZmxOttE9X/lqJ3bMtdx6nadBS63j/qSQ8Cl+YnUNxnXtqrwnIal2CWsDnko
# On7p0WfTxvspJ8fTeyOU5JEjlpB3gvmhhCNmElQzUHSxKCa7JGnCwlLyFGeKiUXU
# LaGj6YgsIJWuHEqHCN8M9eJNYBi+qsSyrnAxZjNxPqxwoqvOf+l8y5Kh5TsxHM/q
# 8grkV7tKtel05iv+bMt+dDk2DZDv5LVOpKnqagqrhPOsZ061xPeM0SAlI+sIZD5S
# lsHyDxL0xY4PwaLoLFH3c7y9hbFig3NBggfkOItqcyDQD2RzPJ6fpjOp/RnfJZPR
# AgMBAAGjggHNMIIByTASBgNVHRMBAf8ECDAGAQH/AgEAMA4GA1UdDwEB/wQEAwIB
# hjATBgNVHSUEDDAKBggrBgEFBQcDAzB5BggrBgEFBQcBAQRtMGswJAYIKwYBBQUH
# MAGGGGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBDBggrBgEFBQcwAoY3aHR0cDov
# L2NhY2VydHMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0QXNzdXJlZElEUm9vdENBLmNy
# dDCBgQYDVR0fBHoweDA6oDigNoY0aHR0cDovL2NybDQuZGlnaWNlcnQuY29tL0Rp
# Z2lDZXJ0QXNzdXJlZElEUm9vdENBLmNybDA6oDigNoY0aHR0cDovL2NybDMuZGln
# aWNlcnQuY29tL0RpZ2lDZXJ0QXNzdXJlZElEUm9vdENBLmNybDBPBgNVHSAESDBG
# MDgGCmCGSAGG/WwAAgQwKjAoBggrBgEFBQcCARYcaHR0cHM6Ly93d3cuZGlnaWNl
# cnQuY29tL0NQUzAKBghghkgBhv1sAzAdBgNVHQ4EFgQUWsS5eyoKo6XqcQPAYPkt
# 9mV1DlgwHwYDVR0jBBgwFoAUReuir/SSy4IxLVGLp6chnfNtyA8wDQYJKoZIhvcN
# AQELBQADggEBAD7sDVoks/Mi0RXILHwlKXaoHV0cLToaxO8wYdd+C2D9wz0PxK+L
# /e8q3yBVN7Dh9tGSdQ9RtG6ljlriXiSBThCk7j9xjmMOE0ut119EefM2FAaK95xG
# Tlz/kLEbBw6RFfu6r7VRwo0kriTGxycqoSkoGjpxKAI8LpGjwCUR4pwUR6F6aGiv
# m6dcIFzZcbEMj7uo+MUSaJ/PQMtARKUT8OZkDCUIQjKyNookAv4vcn4c10lFluhZ
# Hen6dGRrsutmQ9qzsIzV6Q3d9gEgzpkxYz0IGhizgZtPxpMQBvwHgfqL2vmCSfdi
# bqFT+hKUGIUukpHqaGxEMrJmoecYpJpkUe8wggUxMIIEGaADAgECAhAKoSXW1jIb
# fkHkBdo2l8IVMA0GCSqGSIb3DQEBCwUAMGUxCzAJBgNVBAYTAlVTMRUwEwYDVQQK
# EwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xJDAiBgNV
# BAMTG0RpZ2lDZXJ0IEFzc3VyZWQgSUQgUm9vdCBDQTAeFw0xNjAxMDcxMjAwMDBa
# Fw0zMTAxMDcxMjAwMDBaMHIxCzAJBgNVBAYTAlVTMRUwEwYDVQQKEwxEaWdpQ2Vy
# dCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xMTAvBgNVBAMTKERpZ2lD
# ZXJ0IFNIQTIgQXNzdXJlZCBJRCBUaW1lc3RhbXBpbmcgQ0EwggEiMA0GCSqGSIb3
# DQEBAQUAA4IBDwAwggEKAoIBAQC90DLuS82Pf92puoKZxTlUKFe2I0rEDgdFM1EQ
# fdD5fU1ofue2oPSNs4jkl79jIZCYvxO8V9PD4X4I1moUADj3Lh477sym9jJZ/l9l
# P+Cb6+NGRwYaVX4LJ37AovWg4N4iPw7/fpX786O6Ij4YrBHk8JkDbTuFfAnT7l3I
# mgtU46gJcWvgzyIQD3XPcXJOCq3fQDpct1HhoXkUxk0kIzBdvOw8YGqsLwfM/fDq
# R9mIUF79Zm5WYScpiYRR5oLnRlD9lCosp+R1PrqYD4R/nzEU1q3V8mTLex4F0IQZ
# chfxFwbvPc3WTe8GQv2iUypPhR3EHTyvz9qsEPXdrKzpVv+TAgMBAAGjggHOMIIB
# yjAdBgNVHQ4EFgQU9LbhIB3+Ka7S5GGlsqIlssgXNW4wHwYDVR0jBBgwFoAUReui
# r/SSy4IxLVGLp6chnfNtyA8wEgYDVR0TAQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8E
# BAMCAYYwEwYDVR0lBAwwCgYIKwYBBQUHAwgweQYIKwYBBQUHAQEEbTBrMCQGCCsG
# AQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5jb20wQwYIKwYBBQUHMAKGN2h0
# dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEFzc3VyZWRJRFJvb3RD
# QS5jcnQwgYEGA1UdHwR6MHgwOqA4oDaGNGh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNv
# bS9EaWdpQ2VydEFzc3VyZWRJRFJvb3RDQS5jcmwwOqA4oDaGNGh0dHA6Ly9jcmwz
# LmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEFzc3VyZWRJRFJvb3RDQS5jcmwwUAYDVR0g
# BEkwRzA4BgpghkgBhv1sAAIEMCowKAYIKwYBBQUHAgEWHGh0dHBzOi8vd3d3LmRp
# Z2ljZXJ0LmNvbS9DUFMwCwYJYIZIAYb9bAcBMA0GCSqGSIb3DQEBCwUAA4IBAQBx
# lRLpUYdWac3v3dp8qmN6s3jPBjdAhO9LhL/KzwMC/cWnww4gQiyvd/MrHwwhWiq3
# BTQdaq6Z+CeiZr8JqmDfdqQ6kw/4stHYfBli6F6CJR7Euhx7LCHi1lssFDVDBGiy
# 23UC4HLHmNY8ZOUfSBAYX4k4YU1iRiSHY4yRUiyvKYnleB/WCxSlgNcSR3CzddWT
# hZN+tpJn+1Nhiaj1a5bA9FhpDXzIAbG5KHW3mWOFIoxhynmUfln8jA/jb7UBJrZs
# pe6HUSHkWGCbugwtK22ixH67xCUrRwIIfEmuE7bhfEJCKMYYVs9BNLZmXbZ0e/VW
# MyIvIjayS6JKldj1po5SMYIEbTCCBGkCAQEwgYYwcjELMAkGA1UEBhMCVVMxFTAT
# BgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcGA1UECxMQd3d3LmRpZ2ljZXJ0LmNvbTEx
# MC8GA1UEAxMoRGlnaUNlcnQgU0hBMiBBc3N1cmVkIElEIENvZGUgU2lnbmluZyBD
# QQIQCm8Gpkn9Nk686mPMJKDEczANBglghkgBZQMEAgEFAKCBhDAYBgorBgEEAYI3
# AgEMMQowCKACgAChAoAAMBkGCSqGSIb3DQEJAzEMBgorBgEEAYI3AgEEMBwGCisG
# AQQBgjcCAQsxDjAMBgorBgEEAYI3AgEVMC8GCSqGSIb3DQEJBDEiBCAuvjlzNCSd
# T+jJ+i3jjDuo1uMnbT0xyRHbIIQmUEdd/TANBgkqhkiG9w0BAQEFAASCAQAvmKDX
# 0pUJ/6NkHdBtLfAVl3QSyYfJ659CvUNXs30F1UzZLiiVRwM8UGR0xLL0Jae/yAbn
# WuSFMxZp49hXeSo9sy9/1tO1tFvz0ozvUspX0nRaqIyOma4V2qYvqFhA5Tljv4TO
# 9cITPyNt/2QmfgvS9ER4m7uFVn8RikFEDlGjCK57BDF47rqTMseR8dbBmvMl2PsU
# 98kZ6WlNly/ekR96T7d0CKepoZs9tYwMbbkzCeMmM7ojicTUm0cb4I9Y/8ffYH+D
# QG0PjkLoDy/GujALMXj8J/V189gjv8DnOnu+V+zw3u285EaGjHiFKoXKb/dFWFQk
# cp1supTX8epjkTu7oYICMDCCAiwGCSqGSIb3DQEJBjGCAh0wggIZAgEBMIGGMHIx
# CzAJBgNVBAYTAlVTMRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3
# dy5kaWdpY2VydC5jb20xMTAvBgNVBAMTKERpZ2lDZXJ0IFNIQTIgQXNzdXJlZCBJ
# RCBUaW1lc3RhbXBpbmcgQ0ECEA1CSuC+Ooj/YEAhzhQA8N0wDQYJYIZIAWUDBAIB
# BQCgaTAYBgkqhkiG9w0BCQMxCwYJKoZIhvcNAQcBMBwGCSqGSIb3DQEJBTEPFw0y
# MTA5MjExMzI3NTNaMC8GCSqGSIb3DQEJBDEiBCAsJo53chksEBkOs/hjquAiZp2r
# q0+5L89XnoH1lN/FBTANBgkqhkiG9w0BAQEFAASCAQCrSnbaP+enrQjepj01t1nF
# CCTPkGiRZq20cASk88c+rv5cyX4Y+LyoMilOdtjJhp/89hffNhPrD54ck6MQrAwF
# SBR27+n2oYBP76S4YOfXUki573L3qlBujCxY+x8sQlU2oCgBmt631DBbfSAUDOSD
# 73eqjkls+G1W8tSdb/hAuI2NRUK8X6Bf06rkxZcTx2yL8loBH9HgD/7TuxCeFf4r
# jo2y4RfEU6so25nyIIAIr+Xj4+S5C/bxQl6EAKl08H0sfGAUNgL4krnqWVjeXJB8
# NjIjD7Kw3YYgT+hjHZTg8DT69+s/4mS2V1Bn243VH4fcDG5iX4HDzRvBs/Mr1ToM
# SIG # End signature block