If you’ve ever seen a dialog like this, then you’ve probably used OAuth before: Let’s take a brief look at the OAuth protocol before we jump into implementation. If you just want to see the code, you can view the full example on Github How OAuth2 Works We will create a working website that can allow a user to sign in using Github authentication. In this post we will see how we can implement OAuth2 authentication in a Go web application. Dial( "tcp", "127.0.0.Creating an OAuth2 Client in Golang (With Full Examples) Updated on December 16, 2021 Panic( "failed to parse root certificate") RootPEM := `-BEGIN CERTIFICATE- MIIEBDCCAuygAwIBAgIDAjppMA0GCSqGSIb3DQEBBQUAMEIxCzAJBgNVBAYTAlVT MRYwFAYDVQQKEw1HZW9UcnVzdCBJbmMuMRswGQYDVQQDExJHZW9UcnVzdCBHbG9i YWwgQ0EwHhcNMTMwNDA1MTUxNTU1WhcNMTUwNDA0MTUxNTU1WjBJMQswCQYDVQQG EwJVUzETMBEGA1UEChMKR29vZ2xlIEluYzElMCMGA1UEAxMcR29vZ2xlIEludGVy bmV0IEF1dGhvcml0eSBHMjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB AJwqBHdc2FCROgajguDYUEi8iT/xGXAaiEZ+4I/F8YnOIe5a/mENtzJEiaB0C1NP VaTOgmKV7utZX8bhBYASxF6UP7xbSDj0U/ck5vuR6RXEz/RTDfRK/J9U3n2+oGtv h8DQUB8oMANA2ghzUWx//zo8pzcGjr1LEQTrfSTe5vn8MXH7lNVg8y5Kr0LSy+rE ahqyzFPdFUuLH8gZYR/Nnag+YyuENWllhMgZxUYi+FOVvuOAShDGKuy6lyARxzmZ EASg8GF6lSWMTlJ14rbtCMoU/M4iarNOz0YDl5cDfsCx3nuvRTPPuj5xt970JSXC DTWJnZ37DhF5iR43xa+OcmkCAwEAAaOB+zCB+DAfBgNVHSMEGDAWgBTAephojYn7 qwVkDBF9qn1luMrMTjAdBgNVHQ4EFgQUSt0GFhu89mi1dvWBtrtiGrpagS8wEgYD VR0TAQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAQYwOgYDVR0fBDMwMTAvoC2g K4YpaHR0cDovL2NybC5nZW90cnVzdC5jb20vY3Jscy9ndGdsb2JhbC5jcmwwPQYI KwYBBQUHAQEEMTAvMC0GCCsGAQUFBzABhiFodHRwOi8vZ3RnbG9iYWwtb2NzcC5n ZW90cnVzdC5jb20wFwYDVR0gBBAwDjAMBgorBgEEAdZ5AgUBMA0GCSqGSIb3DQEB BQUAA4IBAQA21waAESetKhSbOHezI6B1WLuxfoNCunLaHtiONgaX4PCVOzf9G0JY /iLIa704XtE7JW4S615ndkZAkNoUyHgN7ZVm2o6Gb4ChulYylYbc3GrKBIxbf/a/ zG+FA1jDaFETzf3I93k9mTXwVqO94FntT0QJo544evZG0R0SnU++0ED8Vf4GXjza HFa9llF7b1cq26KqltyMdMKVvvBulRP/F/A8rLIQjcxz++iPAsbw+zOzlTvjwsto WHPbqCRiOwY1nQ2pM714A5AuTHhdUDqB1O6gyHA43LL5Z/qHQF1hwFGPa4NrzQU6 yuGnBXj8ytqU0CwIPX4WecigUCAkVDNx -END CERTIFICATE-` roots := x509. - dashboard written in JavaScript & HTML to check the remaining time before a TLS certificate expires.- minimal TLS 1.3 Implementation in Go.Package tcplisten provides customizable TCP net.Listener with various performance-related options.How to redirect HTTP to HTTPS with a golang webserver –.The complete guide to Go net/http timeouts –.Creating Self-Signed ECDSA SSL Certificate using OpenSSL –.Echo, a fast and unfancy micro web framework for Go - /guide.OpenSSL without prompt – (Stack Exchange).Achieving a Perfect SSL Labs Score with Go –."EC" parameters and a private key -genkeyĭefault cURL CA bunde path (without -with-ca-bundle option).Conversion form to compressed "ECDSA" -conv_form compressed.Encoding to explicit "ECDSA" -param_enc explicit. List "ECDSA" the supported curves openssl ecparam -list_curves.Validate the elliptic curve parameters -check.Openssl x509 -req -sha256 -in server.csr -signkey server.key -out server.crt -days 3650 Generating the Certficate Signing Request openssl req -new -sha256 -key server.key -out server.csr der - The DER extension is used for binary DER encoded certificates. These files may also bear the cer or the crt extension. pem = The PEM extension is used for different types of X.509v3 files which contain ASCII (Base64) armored data prefixed with a «-– BEGIN …» line. csr - Certficate Signing Requests (synonymous most common among *nix systems). crt - Alternate synonymous most common among *nix systems. Openssl req -x509 -nodes -newkey rsa:2048 -keyout -out -days 3650 # openssl req -x509 -nodes -newkey ec:<(openssl ecparam -name secp384r1) -keyout -out -days 3650 # -pkeyopt ec_paramgen_curve:… / ec:<(openssl ecparam -name …) / -newkey ec:… Openssl req -x509 -nodes -newkey ec:secp384r1 -keyout -out -days 3650 # ECDSA recommendation key ≥ secp384r1 # List ECDSA the supported curves (openssl ecparam -list_curves)
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