Golang : Use TLS version 1.2 and enforce server security configuration over client
Problem:
You want to force your Golang program to use TLS(Transport Layer Security) protocol version 1.2 only and use server TLS configuration instead of client. How to do that?
Solution:
Set the MinVersion, MaxVersion parameters to tls.VersionTLS12
and PreferServerCipherSuites to true
. Setting PreferServerCipherSuites will force client to use server TLS configuration.
config.MinVersion = tls.VersionTLS12
config.MaxVersion = tls.VersionTLS12
config.PreferServerCipherSuites = true
For example:
config := tls.Config{Certificates : []tls.Certificate{certificate}, ClientAuth: tls.RequireAnyClientCert}
config.CipherSuites = []uint16{
tls.TLS_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256}
config.MinVersion = tls.VersionTLS12
config.MaxVersion = tls.VersionTLS12
config.PreferServerCipherSuites = true
References:
See also : Golang : Use modern ciphers only in secure connection
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+29.8k Golang : Convert an image file to []byte
+7.9k Golang : How to use Gorilla webtoolkit context package properly
+8.7k Golang : Detect number of faces or vehicles in a photo
+10.3k Golang : Fuzzy string search or approximate string matching example
+18.6k Golang : Set or Add HTTP Request Headers
+9.2k Golang : Convert file unix timestamp to UTC time example
+8.2k Mac OSX : Get a process/daemon status information
+5.7k Unix/Linux : How to fix CentOS yum duplicate glibc or device-mapper-libs dependency error?
+6.5k Golang : Command line ticker to show work in progress
+9.2k Golang : How to get quoted string into another string?
+4.6k PHP : Convert string to timestamp or datestamp before storing to database(MariaDB/MySQL)