windows-server-2012-r2.md

Default enabled cipher suite order

• Windows 8.1 / Windows Server 2012 R2

Recommended cipher suite order

Cipher suite string	Allowed by SCH_USE_STRONG_CRYPTO	TLS/SSL Protocol Versions
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384	Yes	TLS 1.2
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256	Yes	TLS 1.2
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384	Yes	TLS 1.2
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P521	Yes	TLS 1.2
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P521	Yes	TLS 1.2
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384	Yes	TLS 1.2
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256	Yes	TLS 1.2
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384	Yes	TLS 1.2
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256	Yes	TLS 1.2
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384	Yes	TLS 1.2
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256	Yes	TLS 1.2
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384	Yes	TLS 1.2
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256	Yes	TLS 1.2
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P384	Yes	TLS 1.2

Configuring Strong Ciphers

Method 1: Using GPO

Computer Configuration\Administrative Templates\Network\SSL Configuration Settings\SSL Cipher Suite Order

TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P521,TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P384

Method 2: Using Registry Editor

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Cryptography\Configuration\Local\SSL\00010002

References

• Windows SSL/TLS Cipher Suites