Set-ItemProperty -Path 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\.NetFramework\v9' -Name 'SchUseStrongCrypto' -Value '1' -Type DWord Net, below 4.6.2.Īnyway, if you want to make sure strong cryptography is enabled, just run the following PowerShell script with elevated privileges. The opposite happens for all version 4 of. NET Framework installer and It tells me I already have the latest version. Contact your application publisher for instructions about obtaining appropriate versions of the.
Net 4.6.1 and do not change strong cryptography Windows registry property, SSL 3.0 will be disabled and TLS 1.0, TLS 1.1 and TLS 1.2 will be used. To run this application you first must install one of the following versions of. Kemudian kalian ganti file mscoree.dll yang lama dengan file mscoree.dll yang baru dengan version 4XXXX.Rename file mscoree.dll yang lama menjadi download file mscoree.dll versinya lebih dari v9 disini.Kemudian klik menu alternative version lalu download mscoree.dll yang versi 4.0.4XXX. Net 4.6.1 and above will be set to 'False'.
Net version 4.5.2 and below the value will be set to 'True', while in. If this registry setting does not exist, in. Protocols = SslProtocols.Tls | SslProtocols.Ssl3 įollowing ServicePointManager.DisableStrongCrypto implementation we can see how this flag gets his value from 'SchUseStrongCrypto' property set in the Windows registry ('HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v9: SchUseStrongCrypto'). If (ServicePointManager.DisableStrongCrypto) SslProtocols protocols = SslProtocols.Tls12 | SslProtocols.Tls11 | SslProtocols.Tls Net source code.Īs you can see, when strong cryptography is disabled, the default protocols used for SslStreams are SSL 3.0 and TLS 1.0. To verify how this registry setting is being used, just dig into. Otherwise TLS 1.0, TLS 1.1 and TLS 1.2 will be used. If strong cryptography is disabled, only SSL 3.0 and TLS 1.0 will be used for secure connections. Net applications (versions 4 and above), just enable 'strong cryptography' on the Windows registry. To globally modify the available cryptographic protocols for all. Depending on the use case, this might not be ideal.
Net based applications.Īs seen in my previous post, ServicePointManager changes are applied per AppDomain, so if you have multiple applications hosted in different domains, you will have to manage ServicePointManager for each one of them. On this post, I'm going to demonstrate another possible solution for this problem by modifying strong cryptography settings of all.
Along with it, I also mentioned how to tweak ServicePointManager security settings to modify what cryptographic protocols shall be used for outgoing connections. On my previous post 'Disabling cryptographic protocols for PCI compliance (focused on SSL 3.0 and TLS 1.0)' I mentioned how can you disable incoming SSL 3.0 and TLS 1.0 connections, by tweaking schannel settings in the Windows registry.