Enable post-quantum key agreement for WebRTC
Verified with Google Chrome — updated on July 10, 2026
Supported on: Microsoft Windows 7 or later
Path in the GPO console
Computer Configuration\Administrative Templates\Google\Google Chrome\WebRtc settings User Configuration\Administrative Templates\Google\Google Chrome\WebRtc settings Description
This policy allows controlling post-quantum key agreement for WebRTC. If this policy is set to Enabled, post-quantum key agreement would be offered for WebRTC. If this policy is set to Disabled, post-quantum key agreement would not be offered for WebRTC. If this policy is not set, the value would be set by the default rollout process for post-quantum key agreement offered for WebRTC. Offering a post-quantum key agreement is backwards-compatible. Existing DTLS peers and networking middleware are expected to ignore the new option and continue selecting previous options. However, devices that do not correctly implement DTLS may malfunction when offered the new option. For example, they may disconnect in response to unrecognized options or the resulting larger messages. Such devices are not post-quantum-ready and will interfere with an enterprise's post-quantum transition. If encountered, administrators should contact the vendor for a fix. This policy is a temporary measure and will be removed after some milestones.
Registry
Software\Policies\Google\Chrome Software\Policies\Google\Chrome Value name: WebRtcPostQuantumKeyAgreement
Enabled: WebRtcPostQuantumKeyAgreement = 1
Disabled: WebRtcPostQuantumKeyAgreement = 0
Export Builder
BETAConfigure the state, scope and options, then generate .reg, PowerShell, Intune and SCCM outputs — or add the setting to a multi-setting collection.
These exports write the registry — this is not a managed GPO. ⓘ
Applying both scopes creates an ambiguous configuration (computer takes precedence over user). Only do this intentionally.
.reg file
Windows Registry Editor Version 5.00
; Exported from gporais.com
; Policy: Enable post-quantum key agreement for WebRTC
; State: Enabled
; Scope: Computer (HKLM)
; Supported on: Microsoft Windows 7 or later
[HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome]
"WebRtcPostQuantumKeyAgreement"=dword:00000001More formats (PowerShell, Intune, SCCM)
PowerShell
# Exported from gporais.com
# Policy: Enable post-quantum key agreement for WebRTC
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Windows 7 or later
$path = 'HKLM:\Software\Policies\Google\Chrome'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'WebRtcPostQuantumKeyAgreement' -Value 1 -Type DWordIntune XML
No direct Policy CSP / OMA-URI mapping for this policy. Use the Intune Remediation tab, or ingest the ADMX in Intune.Intune Remediation
# === Detection script ===
# Exported from gporais.com
# Policy: Enable post-quantum key agreement for WebRTC
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Google\Chrome' -Name 'WebRtcPostQuantumKeyAgreement' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Enable post-quantum key agreement for WebRTC
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Windows 7 or later
$path = 'HKLM:\Software\Policies\Google\Chrome'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'WebRtcPostQuantumKeyAgreement' -Value 1 -Type DWordSCCM scripts
# Exported from gporais.com
# Policy: Enable post-quantum key agreement for WebRTC
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Windows 7 or later
# SCCM Configuration Item guidance:
# Create a Configuration Item of type "Setting: Script".
# Discovery script: use the Detection script below.
# Remediation script: use the Remediation script below.
# Compliance rule: the Discovery script output equals 'Compliant'.
# === Detection script ===
# Exported from gporais.com
# Policy: Enable post-quantum key agreement for WebRTC
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Windows 7 or later
function Test-RegistryValue {
param(
[Parameter(Mandatory = $true)][string]$Path,
[Parameter(Mandatory = $true)][string]$Name,
[object]$Expected,
[ValidateSet('String', 'DWord', 'MultiString')][string]$Kind = 'String',
[switch]$Absent
)
try {
$item = Get-ItemProperty -LiteralPath $Path -Name $Name -ErrorAction Stop
} catch {
return $Absent.IsPresent
}
if ($Absent.IsPresent) { return $false }
$actual = $item.$Name
if ($Kind -eq 'DWord') { return ([int64]$actual) -eq ([int64]$Expected) }
if ($Kind -eq 'MultiString') {
$actualValues = @($actual)
$expectedValues = @($Expected)
if ($actualValues.Count -ne $expectedValues.Count) { return $false }
for ($i = 0; $i -lt $expectedValues.Count; $i++) {
if ([string]$actualValues[$i] -ne [string]$expectedValues[$i]) { return $false }
}
return $true
}
return [string]$actual -eq [string]$Expected
}
$checks = @(
(Test-RegistryValue -Path 'HKLM:\Software\Policies\Google\Chrome' -Name 'WebRtcPostQuantumKeyAgreement' -Expected 1 -Kind DWord)
)
if ($checks -notcontains $false) {
Write-Output 'Compliant'
exit 0
}
Write-Output 'Non-compliant'
exit 1
# === Remediation script ===
# Exported from gporais.com
# Policy: Enable post-quantum key agreement for WebRTC
# State: Enabled
# Scope: Computer (HKLM)
# Supported on: Microsoft Windows 7 or later
$path = 'HKLM:\Software\Policies\Google\Chrome'
New-Item -Path $path -Force | Out-Null
Set-ItemProperty -Path $path -Name 'WebRtcPostQuantumKeyAgreement' -Value 1 -Type DWordBuilding a multi-setting collection? Add this setting and generate combined .reg / PowerShell / GPO scripts.