azure - PowerShell 使用 Az.KeyVault 从 Azure Key Vault 导出 Pfx

Question

我正在 Azure Key Vault 中创建证书，然后尝试使用私钥将其导出为 PFX。

# Create new Certificate in Key Vault
$policy = New-AzKeyVaultCertificatePolicy -SecretContentType "application/x-pkcs12" -SubjectName "CN=contoso" -IssuerName "Self" -ValidityInMonths 12 -ReuseKeyOnRenewal -KeySize 4096 -KeyType 'RSA-HSM';
Add-AzKeyVaultCertificate -VaultName $VaultName -Name $ADServicePrincipalCertificateName -CertificatePolicy $policy;

# From https://learn.microsoft.com/en-us/powershell/module/az.keyvault/get-azkeyvaultcertificate?view=azps-5.8.0
# Export new Key Vault Certificate as PFX
$securePassword = "fBoFXYD%dg^Q" | ConvertTo-SecureString -AsPlainText -Force; # This is a throwaway password
$certificate = Get-AzKeyVaultCertificate -VaultName $VaultName -Name $ADServicePrincipalCertificateName;
$secret = Get-AzKeyVaultSecret -VaultName $vaultName -Name $certificate.Name -AsPlainText;
$secretByte = [Convert]::FromBase64String($secret)
$x509Cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2($secretByte, "", "Exportable,PersistKeySet")
$type = [System.Security.Cryptography.X509Certificates.X509ContentType]::Pfx
$pfxFileByte = $x509Cert.Export($type, $securePassword);
[System.IO.File]::WriteAllBytes("C:\Repos\Certificate.pfx", $pfxFileByte)
Get-PnPAzureCertificate -Path "C:\Repos\Certificate.pfx" -Password $securePassword

但是，PFX 文件无效

Get-PnPAzureCertificate 出错

证书导入错误

有什么想法吗？使用 Import-AzKeyVaultCertificate 不是一个选项，因为在具有强制 key 长度的策略的环境中存在错误

此外，可能值得一提的是我正在使用 PowerShell 7

Answer 1

根据我的测试，我们在创建证书策略时需要将 key 类型更改为RSA。

例如

$VaultName=""
$ADServicePrincipalCertificateName=""
$policy = New-AzKeyVaultCertificatePolicy -SecretContentType "application/x-pkcs12" `
   -SubjectName "CN=contoso.com" -IssuerName "Self" `
   -ValidityInMonths 12 -ReuseKeyOnRenewal `
   -KeySize 4096 -KeyType 'RSA';
Add-AzKeyVaultCertificate -VaultName $VaultName -Name $ADServicePrincipalCertificateName -CertificatePolicy $policy;

Start-Sleep -Seconds 30
# From https://learn.microsoft.com/en-us/powershell/module/az.keyvault/get-azkeyvaultcertificate?view=azps-5.8.0
# Export new Key Vault Certificate as PFX
$securePassword = "fBoFXYD%dg^Q" | ConvertTo-SecureString -AsPlainText -Force; # This is a throwaway password
$certificate = Get-AzKeyVaultCertificate -VaultName $VaultName -Name $ADServicePrincipalCertificateName;
$secret = Get-AzKeyVaultSecret -VaultName $vaultName -Name $certificate.Name -AsPlainText;
$secretByte = [Convert]::FromBase64String($secret)
$x509Cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2($secretByte, "", "Exportable,PersistKeySet")
$type = [System.Security.Cryptography.X509Certificates.X509ContentType]::Pfx
$pfxFileByte = $x509Cert.Export($type, $securePassword);
[System.IO.File]::WriteAllBytes("E:\Certificate.pfx", $pfxFileByte)
Get-PnPAzureCertificate -Path "E:\Certificate.pfx" -Password $securePassword