Make x509 certificate script from azure-sdk-for-net common to repos (A…

…zure#2614)

Co-authored-by: Ben Broderick Phillips <bebroder@microsoft.com>

eng/common/TestResources/README.md

@@ -89,6 +89,7 @@ Below is an example of how `$templateFileParameters` can be used to pass data fr
 
 **Snippet from `test-resources-pre.ps1`**
 ```powershell
+Import-Module -Name ./eng/common/scripts/X509Certificate2
 $cert = New-X509Certificate2 -SubjectName 'E=opensource@microsoft.com, CN=Azure SDK, OU=Azure SDK, O=Microsoft, L=Frisco, S=TX, C=US' -ValidDays 3652
 # Create new entries in $templateFileParameters
 $templateFileParameters['ConfidentialLedgerPrincipalPEM'] = Format-X509Certificate2 -Certificate $cert

eng/common/scripts/X509Certificate2/README.md

@@ -0,0 +1,24 @@
+Powershell module for generating self-signed x509 certificates
+
+Usage:
+
+```powershell
+Import-Module -Name ./eng/common/scripts/X509Certificate2 # assumes $PWD is repo root
+
+$cert1 = New-X509Certificate2 -SubjectName 'E=opensource@microsoft.com, CN=Azure SDK, OU=Azure SDK, O=Microsoft, L=Redmond, S=WA, C=US' -ValidDays 3652
+
+$CaPublicKeyBase64 = $cert1 | Format-X509Certificate2 -Type CertificateBase64
+$CaPrivateKeyPem = $cert1 | Format-X509Certificate2 -Type Pkcs1
+$CaKeyPairPkcs12Base64 = $cert1 | Format-X509Certificate2 -Type Pkcs12Base64
+```
+
+With V3 extensions
+
+```powershell
+Import-Module -Name eng/scripts/X509Certificate2.psm1 # assumes $PWD is repo root
+
+$cert2 = New-X509Certificate2 -SubjectName 'CN=Azure SDK' -SubjectAlternativeNames (New-X509Certificate2SubjectAlternativeNames -EmailAddress azuresdk@microsoft.com) -KeyUsageFlags KeyEncipherment, NonRepudiation, DigitalSignature -CA -TLS -ValidDays 3652
+
+$PemCertificateWithV3Extensions = ($cert2 | Format-X509Certificate2 -Type Certificate) + "`n" + ($cert2 | Format-X509Certificate2 -Type Pkcs8)
+$CertificateWithV3ExtensionsBase64 = $cert2 | Format-X509Certificate2 -Type CertificateBase64
+ ```

eng/common/scripts/X509Certificate2/X509Certificate2.psm1

@@ -0,0 +1,339 @@
+#Requires -Version 6.0
+
+using namespace System.Security.Cryptography
+using namespace System.Security.Cryptography.X509Certificates
+using namespace System.Text
+
+<#
+.Synopsis
+Generate an X509 v3 certificate.
+
+.Description
+Generates an [X509Certificate2] from either a subject name, or individual X500 distinguished names.
+
+.Parameter SubjectName
+The entire X500 subject name.
+
+.Parameter Country
+The country e.g., "US".
+
+.Parameter State
+The state or province e.g., "WA".
+
+.Parameter City
+The city or locality e.g., "Redmond".
+
+.Parameter Organization
+The organization e.g., "Microsoft".
+
+.Parameter Department
+The department e.g., "Azure SDK".
+
+.Parameter CommonName
+A common name e.g., "www.microsoft.com".
+
+.Parameter SubjectAlternativeNames
+Additional subject names from New-X509Certificate2SubjectAlternativeNames.
+
+.Parameter KeySize
+Size of the RSA key.
+
+.Parameter KeyUsageFlags
+Additional key usage flags.
+
+.Parameter CA
+Create self-signed certificate authority.
+
+.Parameter TLS
+Create self-signed certificate suitable for TLS.
+
+.Parameter NotBefore
+The start date when the certificate is valid. The default is the current time.
+
+.Parameter ValidDays
+How many days from NotBefore until the certificate expires.
+
+.Example
+New-X509Certificate2 -SubjectName 'E=opensource@microsoft.com, CN=Azure SDK, OU=Azure SDK, O=Microsoft, L=Redmond, S=WA, C=US' -ValidDays 3652
+
+Create a self-signed certificate valid for 10 years from now.
+
+.Example
+New-X509Certificate2 -SubjectName 'CN=Azure SDK' -SubjectAlternativeNames (New-X509Certificate2SubjectAlternativeNames -EmailAddress azuresdk@microsoft.com) -KeyUsageFlags KeyEncipherment, NonRepudiation, DigitalSignature -CA -TLS -ValidDays 3652
+
+Create a self-signed certificate valid for 10 years from now with an alternative name, additional key usages including TLS connections, and that can sign other certificate requests.
+#>
+function New-X509Certificate2 {
+    [CmdletBinding(DefaultParameterSetName='SubjectName')]
+    [OutputType([System.Security.Cryptography.X509Certificates.X509Certificate2])]
+    param (
+        [Parameter(ParameterSetName='SubjectName', Mandatory=$true, Position=0)]
+        [string] $SubjectName,
+
+        [Parameter(ParameterSetName='Builder', HelpMessage='Country Name (2 letter code)')]
+        [Alias('C')]
+        [string] $Country,
+
+        [Parameter(ParameterSetName='Builder', HelpMessage='State or Province Name (full name)')]
+        [Alias('S', 'Province')]
+        [string] $State,
+
+        [Parameter(ParameterSetName='Builder', HelpMessage='Locality Name (eg, city)')]
+        [Alias('L', 'Locality')]
+        [string] $City,
+
+        [Parameter(ParameterSetName='Builder', HelpMessage='Organization Name (eg, company)')]
+        [Alias('O')]
+        [string] $Organization,
+
+        [Parameter(ParameterSetName='Builder', HelpMessage='Organizational Unit Name (eg, section)')]
+        [Alias('OU')]
+        [string] $Department,
+
+        [Parameter(ParameterSetName='Builder', HelpMessage='Common Name (e.g. server FQDN or YOUR name)')]
+        [Alias('CN')]
+        [string] $CommonName,
+
+        [Parameter()]
+        [ValidateNotNull()]
+        [SubjectAlternativeNameBuilder] $SubjectAlternativeNames,
+
+        [Parameter()]
+        [ValidateSet(1024, 2048, 4096)]
+        [int] $KeySize = 2048,
+
+        [Parameter()]
+        [X509KeyUsageFlags] $KeyUsageFlags,
+
+        [Parameter()]
+        [switch] $CA,
+
+        [Parameter()]
+        [switch] $TLS,
+
+        [Parameter()]
+        [ValidateNotNullOrEmpty()]
+        [DateTimeOffset] $NotBefore = [DateTimeOffset]::Now,
+
+        [Parameter()]
+        [ValidateRange(1, [int]::MaxValue)]
+        [int] $ValidDays = 365
+    )
+
+    if ($PSCmdlet.ParameterSetName -eq 'Builder') {
+        $sb = [StringBuilder]::new()
+        if ($Country) { $null = $sb.Append("C=$Country,") }
+        if ($State) { $null = $sb.Append("S=$State, ") }
+        if ($City) { $null = $sb.Append("L=$City, ") }
+        if ($Organization) { $null = $sb.Append("O=$Organization, ") }
+        if ($Department) { $null = $sb.Append("OU=$Department, ") }
+        if ($CommonName) { $null = $sb.Append("CN=$CommonName, ") }
+
+        $SubjectName = [X500DistinguishedName]::new($sb.ToString()).Format($false)
+    }
+
+    $rsa = [RSA]::Create($KeySize)
+    try {
+        $req = [CertificateRequest]::new(
+            [string] $SubjectName,
+            $rsa,
+            [HashAlgorithmName]::SHA256,
+            [RSASignaturePadding]::Pkcs1
+        )
+
+        $req.CertificateExtensions.Add(
+            [X509BasicConstraintsExtension]::new(
+                $CA,
+                $false,
+                0,
+                $true
+            )
+        )
+
+        if ($SubjectAlternativeNames) {
+            $req.CertificateExtensions.Add(
+                $SubjectAlternativeNames.Build($false)
+            )
+        }
+
+        if ($KeyUsageFlags) {
+            $req.CertificateExtensions.Add(
+                [X509KeyUsageExtension]::new(
+                    $KeyUsageFlags,
+                    $true
+                )
+            )
+        }
+
+        if ($TLS) {
+            $oids = [OidCollection]::new()
+            $null = $oids.Add([Oid]::new('1.3.6.1.5.5.7.3.1'))
+
+            $req.CertificateExtensions.Add(
+                [X509EnhancedKeyUsageExtension]::new(
+                    $oids,
+                    $false
+                )
+            )
+        }
+
+        $req.CreateSelfSigned($NotBefore, $NotBefore.AddDays($ValidDays))
+    }
+    finally {
+        $rsa.Dispose()
+    }
+}
+
+<#
+.Synopsis
+Create subject alternative names for New-X509Certificate2.
+
+.Description
+Subject alternative names include DNS names, email addresses, and IP addresses for which a certificate may also authenticate connections.
+
+.Parameter DnsName
+One or more DNS names e.g., "www.microsoft.com".
+
+.Parameter EmailAddress
+One or more email addresses e.g., "opensource@microsoft.com".
+
+.Parameter IpAddress
+One or more IP addresses.
+
+.Parameter Uri
+Additional URIs not covered by other options.
+
+.Parameter UserPrincipalName
+Additional user names not covered by other options.
+#>
+function New-X509Certificate2SubjectAlternativeNames {
+    [CmdletBinding()]
+    [OutputType([System.Security.Cryptography.X509Certificates.SubjectAlternativeNameBuilder])]
+    param (
+        [Parameter()]
+        [ValidateNotNullOrEmpty()]
+        [string[]] $DnsName,
+
+        [Parameter()]
+        [ValidateNotNullOrEmpty()]
+        [string[]] $EmailAddress,
+
+        [Parameter()]
+        [ValidateScript({[System.Net.IPAddress]::TryParse($_, [ref] $null)})]
+        [string[]] $IpAddress,
+
+        [Parameter()]
+        [ValidateScript({[System.Uri]::TryParse($_, [ref] $null)})]
+        [string[]] $Uri,
+
+        [Parameter()]
+        [ValidateNotNullOrEmpty()]
+        [string[]] $UserPrincipalName
+    )
+
+    $subjectAlternativeNames = [SubjectAlternativeNameBuilder]::new()
+
+    foreach ($value in $DnsName) {
+        $subjectAlternativeNames.AddDnsName($value)
+    }
+
+    foreach ($value in $EmailAddress) {
+        $subjectAlternativeNames.AddEmailAddress($value)
+    }
+
+    foreach ($value in $IpAddress) {
+        $subjectAlternativeNames.AddIpAddress($value)
+    }
+
+    foreach ($value in $Uri) {
+        $subjectAlternativeNames.AddUri($value)
+    }
+
+    foreach ($value in $UserPrincipalName) {
+        $subjectAlternativeNames.AddUserPrincipalName($value)
+    }
+
+    $subjectAlternativeNames
+}
+
+<#
+.Synopsis
+Exports a certificate to a file.
+
+.Description
+Exports an X509Certificate2 to a file in one of the given formats.
+
+.Parameter Path
+The path to the file to save.
+
+.Parameter Type
+The type of encoding for the file to save.
+
+.Parameter Certificate
+The certificate to save.
+#>
+function Export-X509Certificate2 {
+    [CmdletBinding()]
+    param (
+        [Parameter(Mandatory=$true, Position=0)]
+        [string] $Path,
+
+        [Parameter(Position=1)]
+        [ValidateSet('Certificate', 'CertificateBase64', 'Pfx', 'Pkcs1', 'Pkcs12', 'Pkcs12Base64', 'Pkcs8', 'PrivateKey')]
+        [string] $Type = 'Pfx',
+
+        [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
+        [X509Certificate2] $Certificate
+    )
+
+    if ($Type -in 'Pfx', 'Pkcs12') {
+        $Certificate.Export([X509ContentType]::Pfx) | Set-Content $Path -AsByteStream
+    } else {
+        Format-X509Certificate2 -Type $Type -Certificate $Certificate | Set-Content $Path -Encoding ASCII
+    }
+}
+
+<#
+.Synopsis
+Formats a certificate.
+
+.Description
+Formats a certificate and prints it to the output buffer e.g., console. Useful for piping to clip.exe in Windows and pasting into code (additional formatting may be required).
+
+.Parameter Type
+The type of encoding for the output.
+
+.Parameter Certificate
+The certificate to format.
+#>
+function Format-X509Certificate2 {
+    [CmdletBinding()]
+    param (
+        [Parameter(Position=0)]
+        [ValidateSet('Certificate', 'CertificateBase64', 'Pkcs1', 'Pkcs12Base64', 'Pkcs8', 'PrivateKey')]
+        [string] $Type = 'Certificate',
+
+        [Parameter(Mandatory=$true, ValueFromPipeline=$true)]
+        [X509Certificate2] $Certificate
+    )
+
+    function ConvertTo-Pem($tag, $data) {
+        @"
+-----BEGIN $tag-----
+$([Convert]::ToBase64String($data, 'InsertLineBreaks'))
+-----END $tag-----
+"@
+    }
+
+    if ($Type -eq 'Certificate') {
+        ConvertTo-Pem 'CERTIFICATE' $Certificate.RawData
+    } elseif ($Type -eq 'CertificateBase64') {
+        [Convert]::ToBase64String($Certificate.RawData, 'InsertLineBreaks')
+    } elseif ($Type -eq 'Pkcs1') {
+        ConvertTo-Pem 'RSA PRIVATE KEY' $Certificate.PrivateKey.ExportRSAPrivateKey()
+    } elseif ($Type -eq 'Pkcs12Base64') {
+        [Convert]::ToBase64String($Certificate.Export([X509ContentType]::Pfx), 'InsertLineBreaks')
+    } elseif ($Type -in 'Pkcs8', 'PrivateKey') {
+        ConvertTo-Pem 'PRIVATE KEY' $Certificate.PrivateKey.ExportPkcs8PrivateKey()
+    }
+}