Prefer specific encryption cipher algorithms for TLS: registry value PreferSlowCiphers (Chrome)UserHKCU\Software\Policies\Google\Chrome

Policy ID
PreferSlowCiphers
Scope
Computer Configuration, User Configuration
Supported on
Microsoft Windows 7 or later
Source
Google Chrome Policy Templates (version 156.0.8078.80)
Category
Google › Google Chrome › Cryptography compliance policies

Registry

PreferSlowCiphers

REG_SZUserComputer
Enabled value
Depends on the option value
Element
Prefer specific encryption cipher algorithms for TLS
Options
ItemStored value
Prefer ciphers satisfying the requirements of CNSA 1.0 and 2.0cnsa
Use Google Chrome's default cipher orderdefault
Apply with .reg · CMD · PowerShell
UserPer-account setting
.reg
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Policies\Google\Chrome]

; Options (use only one)
; Prefer ciphers satisfying the requirements of CNSA 1.0 and 2.0
"PreferSlowCiphers"="cnsa"
; Use Google Chrome's default cipher order
"PreferSlowCiphers"="default"
CMD
:: Options (use only one)

:: Prefer ciphers satisfying the requirements of CNSA 1.0 and 2.0
reg add "HKCU\Software\Policies\Google\Chrome" /v "PreferSlowCiphers" /t REG_SZ /d "cnsa" /f
:: Use Google Chrome's default cipher order
reg add "HKCU\Software\Policies\Google\Chrome" /v "PreferSlowCiphers" /t REG_SZ /d "default" /f
PowerShell
# Common: create the key
New-Item -Path 'HKCU:\Software\Policies\Google\Chrome' -Force | Out-Null

# Options (use only one)
# Prefer ciphers satisfying the requirements of CNSA 1.0 and 2.0
New-ItemProperty -Path 'HKCU:\Software\Policies\Google\Chrome' -Name 'PreferSlowCiphers' -PropertyType String -Value 'cnsa' -Force | Out-Null
# Use Google Chrome's default cipher order
New-ItemProperty -Path 'HKCU:\Software\Policies\Google\Chrome' -Name 'PreferSlowCiphers' -PropertyType String -Value 'default' -Force | Out-Null
ComputerMachine-wide setting
.reg
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome]

; Options (use only one)
; Prefer ciphers satisfying the requirements of CNSA 1.0 and 2.0
"PreferSlowCiphers"="cnsa"
; Use Google Chrome's default cipher order
"PreferSlowCiphers"="default"
CMD
:: Options (use only one)

:: Prefer ciphers satisfying the requirements of CNSA 1.0 and 2.0
reg add "HKLM\Software\Policies\Google\Chrome" /v "PreferSlowCiphers" /t REG_SZ /d "cnsa" /f
:: Use Google Chrome's default cipher order
reg add "HKLM\Software\Policies\Google\Chrome" /v "PreferSlowCiphers" /t REG_SZ /d "default" /f
PowerShell
# Common: create the key
New-Item -Path 'HKLM:\Software\Policies\Google\Chrome' -Force | Out-Null

# Options (use only one)
# Prefer ciphers satisfying the requirements of CNSA 1.0 and 2.0
New-ItemProperty -Path 'HKLM:\Software\Policies\Google\Chrome' -Name 'PreferSlowCiphers' -PropertyType String -Value 'cnsa' -Force | Out-Null
# Use Google Chrome's default cipher order
New-ItemProperty -Path 'HKLM:\Software\Policies\Google\Chrome' -Name 'PreferSlowCiphers' -PropertyType String -Value 'default' -Force | Out-Null