Print connection information
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README.md
80
README.md
@ -7,7 +7,85 @@
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Example:
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```
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./tlshandshake www.fbi.com:443 -cipher X25519:P256:CECPQ2
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> go run cmd/tlshandshake/tlshandshake.go -tls_min 1.2 -tls_max 1.3 -groups X25519-SIDHp503 pqcrypto.uk
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| TLS-Session:
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-----------------------------------------------------------------
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Protocol : 1.3
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Cipher : TLS_AES_128_GCM_SHA256
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Negotiated Group : X25519-SIDHp503
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Connection ID : d0129f4dea986b72
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SCTs : []
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Connection resumed : FALSE
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EMS used : FALSE
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Stapled OCSP response : 308201350a0100a082012e3082012a06092b0601...
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| Connection:
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-----------------------------------------------------------------
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Local address : 10.0.1.242:51536
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Remote address : 198.41.214.162:443
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| Server Certificates:
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-----------------------------------------------------------------
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Depth : 0
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Issuer : CN=DigiCert ECC Extended Validation Server CA,OU=www.digicert.com,O=DigiCert Inc,C=US
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Certificate:
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Data:
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Version: 3 (0x2)
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Serial Number: 13836083707412516537413894398330316720 (0xa68bb984a507399f4716e809a44a7b0)
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Signature Algorithm: ECDSA-SHA256
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Issuer: C=US,O=DigiCert Inc,OU=www.digicert.com,CN=DigiCert ECC Extended Validation Server CA
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Validity
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Not Before: Oct 30 00:00:00 2018 UTC
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Not After : Nov 3 12:00:00 2020 UTC
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Subject: UnknownOID=2.5.4.15,UnknownOID=1.3.6.1.4.1.311.60.2.1.3,UnknownOID=1.3.6.1.4.1.311.60.2.1.2,UnknownOID=2.5.4.5,C=US,ST=California,UnknownOID=2.5.4.7,O=Cloudflare, Inc.,CN=cloudflare.com
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Subject Public Key Info:
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Public Key Algorithm: ECDSA
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Public-Key: (256 bit)
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X:
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ce:d7:61:49:49:fd:4b:35:8b:1b:86:bc:a3:c5:bc:
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d8:20:6e:31:17:2d:92:8a:b7:34:f4:db:11:70:4e:
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49:16
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Y:
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61:fc:ae:fa:7f:ba:6f:0c:05:53:74:c6:79:7f:81:
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12:8a:f7:e2:5e:6c:f5:fa:10:69:6b:67:d9:d5:96:
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51:b0
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Curve: P-256
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X509v3 extensions:
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X509v3 Authority Key Identifier:
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keyid:F8:25:D9:A6:39:C7:C3:81:87:25:3E:30:54:91:18:21:40:9B:17:9D
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X509v3 Subject Key Identifier:
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DE:7F:7F:E6:7C:ED:ED:61:43:60:47:67:5D:86:2F:84:FD:A6:78:AD
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X509v3 Subject Alternative Name:
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DNS:cloudflare.com, DNS:www.cloudflare.com
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X509v3 Key Usage: critical
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Digital Signature
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X509v3 Extended Key Usage:
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TLS Web Server Authentication, TLS Web Client Authentication
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X509v3 CRL Distribution Points:
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Full Name:
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URI:http://crl3.digicert.com/DigiCertECCExtendedValidationServerCA.crl, URI:http://crl4.digicert.com/DigiCertECCExtendedValidationServerCA.crl
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X509v3 Certificate Policies:
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Policy: 2.16.840.1.114412.2.1
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Policy: 2.23.140.1.1
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Authority Information Access:
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OCSP - URI:http://ocsp.digicert.com
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CA Issuers - URI:http://cacerts.digicert.com/DigiCertECCExtendedValidationServerCA.crt
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X509v3 Basic Constraints: critical
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CA:FALSE
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Unknown extension 1.3.6.1.4.1.11129.2.4.2
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Signature Algorithm: ECDSA-SHA256
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30:65:02:30:1e:1b:3d:10:9a:50:23:2e:e6:86:11:13:46:a8:
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1d:e8:63:f8:2f:60:96:43:49:0a:49:30:73:55:f8:25:63:1d:
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46:59:da:a9:4b:98:68:99:3d:50:a8:c4:fc:52:0f:e3:02:31:
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00:d2:64:cc:ad:f8:92:b6:6b:fe:b7:a9:4e:8c:06:3b:fb:d3:
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08:9f:d9:04:10:80:b9:52:97:0a:14:24:a4:5a:8a:d7:27:3c:
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1e:86:cb:b7:a8:be:c3:c0:98:fa:4a:91:ae
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```
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# Installation
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@ -3,13 +3,27 @@ package main
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import (
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"errors"
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"flag"
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"fmt"
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"os"
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"path"
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"strings"
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hs "github.com/henrydcase/tlshandshake"
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trs "github.com/henrydcase/trs"
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"github.com/henrydcase/trs"
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)
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var tls_min, tls_max, named_groups, named_ciphers string
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var dst_port string
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// Parse flags
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func init() {
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flag.StringVar(&tls_min, "tls_min", "1.0", "TLS version to use - minimal")
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flag.StringVar(&tls_max, "tls_max", "1.3", "TLS version to use - maximal")
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flag.StringVar(&named_groups, "groups", "", "ECDH group name to use for KEX")
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flag.StringVar(&named_ciphers, "ciphers", "", "Named cipher IDs to use")
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flag.StringVar(&dst_port, "port", "443", "Destination port number")
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}
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func getIDByName(m map[uint16]string, name string) (uint16, error) {
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for key, value := range m {
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if value == name {
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@ -19,51 +33,68 @@ func getIDByName(m map[uint16]string, name string) (uint16, error) {
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return 0, errors.New("Unknown value")
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}
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func usage() {
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fmt.Fprintf(os.Stderr, "usage: %s [options] server:port\n", path.Base(os.Args[0]))
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fmt.Fprintf(os.Stderr, "Flags:\n")
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flag.PrintDefaults()
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os.Exit(2)
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}
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// Usage client args host:port
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func main() {
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var tls_version, named_groups, named_ciphers string
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flag.StringVar(&tls_version, "tls_version", "1.3", "TLS version to use")
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flag.StringVar(&named_groups, "groups", "X25519:P-256:P-384:P-521", "NamedGroups IDs to use")
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flag.StringVar(&named_ciphers, "ciphers", "TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384", "Named cipher IDs to use")
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// parse flags
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flag.Parse()
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if flag.NArg() != 1 {
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flag.Usage()
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os.Exit(1)
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usage()
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}
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client := hs.NewClient()
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client.Addr = flag.Arg(0)
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if !strings.Contains(client.Addr, ":") {
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client.Addr += ":443"
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client.Addr += ":" + dst_port
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}
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// Set requested DH groups
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client.TLS.CurvePreferences = []trs.CurveID{}
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for _, ng := range strings.Split(named_groups, ":") {
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id, err := getIDByName(hs.NamedGroupsToName, ng)
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if err != nil {
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panic("Wrong group name provided")
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if len(named_groups) != 0 {
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for _, ng := range strings.Split(named_groups, ":") {
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id, err := getIDByName(hs.NamedGroupsToName, ng)
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if err != nil {
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panic("Wrong group name provided")
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}
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client.TLS.CurvePreferences = append(client.TLS.CurvePreferences, trs.CurveID(id))
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}
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client.TLS.CurvePreferences = append(client.TLS.CurvePreferences, trs.CurveID(id))
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}
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// Perform TLS handshake with each each requested CipherSuite
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tlsID, err := getIDByName(hs.TlsVersionToName, tls_version)
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// TLS min
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tlsID, err := getIDByName(hs.TlsVersionToName, tls_min)
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if err != nil {
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panic("Unknown TLS version")
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}
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client.TLS.MinVersion = tlsID
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// TLS max
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tlsID, err = getIDByName(hs.TlsVersionToName, tls_max)
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if err != nil {
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panic("Unknown TLS version")
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}
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client.TLS.MaxVersion = tlsID
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cn := strings.Split(named_ciphers, ":")
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if len(cn) == 0 {
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panic("Cipher can't be null")
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}
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id, err := getIDByName(hs.CipherSuiteIdToName, cn[0])
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if err != nil {
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panic("Wrong cipher name provided")
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if len(named_ciphers) != 0 {
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id, err := getIDByName(hs.CipherSuiteIdToName, cn[0])
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if err != nil {
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panic("Wrong cipher name provided")
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}
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client.TLS.CipherSuites = []uint16{id}
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}
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client.SetMinMaxTLS(tlsID)
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client.TLS.CipherSuites = []uint16{id}
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client.TLS.InsecureSkipVerify = true
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// Let's go
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client.Run()
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}
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53
lib.go
53
lib.go
@ -2,10 +2,16 @@ package tlshandshake
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import (
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"fmt"
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"os"
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trs "github.com/henrydcase/trs"
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"github.com/henrydcase/trs"
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)
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type Client struct {
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TLS trs.Config
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Addr string
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}
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var TlsVersionToName = map[uint16]string{
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trs.VersionTLS10: "1.0",
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trs.VersionTLS11: "1.1",
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@ -14,11 +20,31 @@ var TlsVersionToName = map[uint16]string{
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}
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var CipherSuiteIdToName = map[uint16]string{
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trs.TLS_RSA_WITH_AES_128_CBC_SHA: "TLS_RSA_WITH_AES_128_CBC_SHA",
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trs.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
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trs.TLS_AES_128_GCM_SHA256: "TLS_AES_128_GCM_SHA256",
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trs.TLS_AES_256_GCM_SHA384: "TLS_AES_256_GCM_SHA384",
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trs.TLS_CHACHA20_POLY1305_SHA256: "TLS_CHACHA20_POLY1305_SHA256",
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trs.TLS_RSA_WITH_RC4_128_SHA: "TLS_RSA_WITH_RC4_128_SHA",
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trs.TLS_RSA_WITH_3DES_EDE_CBC_SHA: "TLS_RSA_WITH_3DES_EDE_CBC_SHA",
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trs.TLS_RSA_WITH_AES_128_CBC_SHA: "TLS_RSA_WITH_AES_128_CBC_SHA",
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trs.TLS_RSA_WITH_AES_256_CBC_SHA: "TLS_RSA_WITH_AES_256_CBC_SHA",
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trs.TLS_RSA_WITH_AES_128_CBC_SHA256: "TLS_RSA_WITH_AES_128_CBC_SHA256",
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trs.TLS_RSA_WITH_AES_128_GCM_SHA256: "TLS_RSA_WITH_AES_128_GCM_SHA256",
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trs.TLS_RSA_WITH_AES_256_GCM_SHA384: "TLS_RSA_WITH_AES_256_GCM_SHA384",
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trs.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA: "TLS_ECDHE_ECDSA_WITH_RC4_128_SHA",
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trs.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA: "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA",
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trs.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: "TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA",
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trs.TLS_ECDHE_RSA_WITH_RC4_128_SHA: "TLS_ECDHE_RSA_WITH_RC4_128_SHA",
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trs.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA: "TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA",
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trs.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA: "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA",
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trs.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA: "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA",
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trs.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256: "TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256",
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trs.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256: "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256",
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trs.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256: "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
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trs.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
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trs.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384: "TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
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trs.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384: "TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
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trs.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305: "TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305",
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trs.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305: "TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305",
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}
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var NamedGroupsToName = map[uint16]string{
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@ -30,13 +56,6 @@ var NamedGroupsToName = map[uint16]string{
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uint16(trs.CurveP521): "P-521",
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}
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var failed uint
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type Client struct {
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TLS trs.Config
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Addr string
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}
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func NewClient() *Client {
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var c Client
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c.TLS.InsecureSkipVerify = true
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@ -44,18 +63,13 @@ func NewClient() *Client {
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}
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func (c *Client) Run() {
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fmt.Printf("TLS %s with %s\n", TlsVersionToName[c.TLS.MinVersion], CipherSuiteIdToName[c.TLS.CipherSuites[0]])
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con, err := trs.Dial("tcp", c.Addr, &c.TLS)
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if err != nil {
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fmt.Printf("handshake failed: %v\n\n", err)
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failed++
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return
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os.Exit(1)
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}
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defer con.Close()
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fmt.Printf("[TLS: %s]\n", TlsVersionToName[con.ConnectionState().Version])
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fmt.Println("OK\n")
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printTlsState(con)
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}
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func (c *Client) Clone() *Client {
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@ -64,8 +78,3 @@ func (c *Client) Clone() *Client {
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clone.Addr = c.Addr
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return &clone
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}
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func (c *Client) SetMinMaxTLS(ver uint16) {
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c.TLS.MinVersion = ver
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c.TLS.MaxVersion = ver
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}
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53
utils.go
Normal file
53
utils.go
Normal file
@ -0,0 +1,53 @@
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package tlshandshake
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import (
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"encoding/hex"
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"fmt"
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"github.com/grantae/certinfo"
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trs "github.com/henrydcase/trs"
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)
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var tf = map[bool]string{
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true: "TRUE",
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false: "FALSE",
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}
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func toHex(b []byte) string {
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str := make([]byte, hex.EncodedLen(len(b)))
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hex.Encode(str, b[:])
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return string(str)
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}
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func printTlsState(con *trs.Conn) {
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state := con.ConnectionState()
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fmt.Println("| TLS-Session:")
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fmt.Println("-----------------------------------------------------------------")
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fmt.Printf("\tProtocol\t\t: %s\n", TlsVersionToName[state.Version])
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fmt.Printf("\tCipher\t\t\t: %s\n", CipherSuiteIdToName[state.CipherSuite])
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fmt.Printf("\tNegotiated Group\t: %s\n", NamedGroupsToName[uint16(state.Group)])
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fmt.Printf("\tConnection ID\t\t: %s\n", toHex(state.ConnectionID))
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fmt.Printf("\tSCTs\t\t\t: %s\n", state.SignedCertificateTimestamps)
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fmt.Printf("\tConnection resumed\t: %s\n", tf[state.DidResume])
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//fmt.Printf("\tNext protocol\t\t: %s\n", state.NegotiatedProtocol)
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fmt.Printf("\tEMS used\t\t: %s\n", tf[con.UsedEMS()])
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fmt.Printf("\tStapled OCSP response\t: %s\n", toHex(state.OCSPResponse))
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fmt.Println("\n| Connection:")
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fmt.Println("-----------------------------------------------------------------")
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fmt.Printf("\tLocal address\t\t: %s\n", con.LocalAddr())
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fmt.Printf("\tRemote address\t\t: %s\n", con.RemoteAddr())
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fmt.Println("\n| Server Certificates:")
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fmt.Println("-----------------------------------------------------------------")
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for i, cert := range state.PeerCertificates {
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fmt.Printf("Depth : %d\n", i)
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fmt.Printf("Issuer : %s\n", cert.Issuer)
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res, err := certinfo.CertificateText(cert)
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if err != nil {
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panic("Error parsing received server certificate")
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}
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fmt.Println(res)
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}
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}
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