go-tls-key-exchange

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Published: May 24, 2019 License: BSD-3-Clause

README

go1.12.5_private_key_exchanges

Build Status

This fork of Go 1.12.5 supports custom key encapsulation mechanisms (KEMs) in crypto/tls for TLS 1.3 (only). Users of this fork may include researchers experimenting with quantum-resistant algorithms, such as those being assessed by NIST.

To see the changes introduced in this fork, please review https://github.com/golang/go/compare/go1.12.5...thales-e-security:go1.12.5_private_key_exchanges.

Building

Please follow the standard instructions for building Go from source: https://golang.org/doc/install/source.

Example post-quantum key exchange

See the example directory for an example application that uses post-quantum crypto in a TLS 1.3 handshake.

Adding new KEMs

This fork introduces a new interface: tls.PrivateKeyExchange:

// A PrivateKeyExchange implements a TLS 1.3 key exchange mechanism.
type PrivateKeyExchange interface {

	// ClientShare initiates the key exchange and returns the client key
	// share.
	ClientShare() ([]byte, error)

	// SecretFromClientShare is called by the server to process the share from
	// the client. It generates (or deduces) the TLS secret and returns this, along with
	// its own share, which is sent to the client.
	SecretFromClientShare(clientShare []byte) (secret, serverShare []byte, err error)

	// SecretFromServerShare uses the server key share to deduce the TLS secret,
	// which is returned.
	SecretFromServerShare(serverShare []byte) ([]byte, error)
}

This interface should be familiar to anyone working with KEMs from the NIST competition.

The tls.Config struct has been extended with the following field:

type Config struct {
	//...
	
    // PrivateKeyExchanges are TLS 1.3 key exchange implementations
    // for private named groups. The CurveIDs must be from the ecdhe_private_use range
    // (see RFC 8446 section 4.2.7). To enable these private groups, include their
    // CurveID in the CurvePreferences field.
    PrivateKeyExchanges map[CurveID]PrivateKeyExchange
}

The CurveID chosen must be from the ecdhe_private_use range, i.e. 0xFE00..0xFEFF. The curve IDs must also be added to Config.CurvePreferences otherwise they will be ignored.

See the example directory for a sample TLS server and client that use a dummy KEM to negotiate their connection.

Enabling TLS 1.3 Support

In Go v1.12.x, TLS 1.3 support is optional and disabled by default. Quoting from their documentation:

TLS 1.3 is available only on an opt-in basis in Go 1.12. To enable it, set the GODEBUG environment variable (comma-separated key=value options) such that it includes "tls13=1". To enable it from within the process, set the environment variable before any use of TLS:

func init() {
    os.Setenv("GODEBUG", os.Getenv("GODEBUG")+",tls13=1")
} 

Support in Go proper

A proposal has been opened to add similar functionality into Go. Please see https://github.com/golang/go/issues/31520.

goliboqs provides quantum-resistant key exchange mechanisms for Go. The example code in this project uses goliboqs to demonstrate quantum-resistant TLS.

Directories

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Package fmtsort provides a general stable ordering mechanism for maps, on behalf of the fmt and text/template packages.
Package fmtsort provides a general stable ordering mechanism for maps, on behalf of the fmt and text/template packages.
internal/nettrace
Package nettrace contains internal hooks for tracing activity in the net package.
Package nettrace contains internal hooks for tracing activity in the net package.
internal/poll
Package poll supports non-blocking I/O on file descriptors with polling.
Package poll supports non-blocking I/O on file descriptors with polling.
internal/race
Package race contains helper functions for manually instrumenting code for the race detector.
Package race contains helper functions for manually instrumenting code for the race detector.
internal/singleflight
Package singleflight provides a duplicate function call suppression mechanism.
Package singleflight provides a duplicate function call suppression mechanism.
internal/syscall/windows/sysdll
Package sysdll is an internal leaf package that records and reports which Windows DLL names are used by Go itself.
Package sysdll is an internal leaf package that records and reports which Windows DLL names are used by Go itself.
internal/testenv
Package testenv provides information about what functionality is available in different testing environments run by the Go team.
Package testenv provides information about what functionality is available in different testing environments run by the Go team.
internal/testlog
Package testlog provides a back-channel communication path between tests and package os, so that cmd/go can see which environment variables and files a test consults.
Package testlog provides a back-channel communication path between tests and package os, so that cmd/go can see which environment variables and files a test consults.
internal/x/crypto/chacha20poly1305
Package chacha20poly1305 implements the ChaCha20-Poly1305 AEAD as specified in RFC 7539.
Package chacha20poly1305 implements the ChaCha20-Poly1305 AEAD as specified in RFC 7539.
internal/x/crypto/cryptobyte
Package cryptobyte contains types that help with parsing and constructing length-prefixed, binary messages, including ASN.1 DER.
Package cryptobyte contains types that help with parsing and constructing length-prefixed, binary messages, including ASN.1 DER.
internal/x/crypto/cryptobyte/asn1
Package asn1 contains supporting types for parsing and building ASN.1 messages with the cryptobyte package.
Package asn1 contains supporting types for parsing and building ASN.1 messages with the cryptobyte package.
internal/x/crypto/curve25519
Package curve25519 provides an implementation of scalar multiplication on the elliptic curve known as curve25519.
Package curve25519 provides an implementation of scalar multiplication on the elliptic curve known as curve25519.
internal/x/crypto/hkdf
Package hkdf implements the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) as defined in RFC 5869.
Package hkdf implements the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) as defined in RFC 5869.
internal/x/crypto/internal/chacha20
Package ChaCha20 implements the core ChaCha20 function as specified in https://tools.ietf.org/html/rfc7539#section-2.3.
Package ChaCha20 implements the core ChaCha20 function as specified in https://tools.ietf.org/html/rfc7539#section-2.3.
internal/x/crypto/poly1305
Package poly1305 implements Poly1305 one-time message authentication code as specified in https://cr.yp.to/mac/poly1305-20050329.pdf.
Package poly1305 implements Poly1305 one-time message authentication code as specified in https://cr.yp.to/mac/poly1305-20050329.pdf.
internal/x/net/dns/dnsmessage
Package dnsmessage provides a mostly RFC 1035 compliant implementation of DNS message packing and unpacking.
Package dnsmessage provides a mostly RFC 1035 compliant implementation of DNS message packing and unpacking.
internal/x/net/http/httpguts
Package httpguts provides functions implementing various details of the HTTP specification.
Package httpguts provides functions implementing various details of the HTTP specification.
internal/x/net/http/httpproxy
Package httpproxy provides support for HTTP proxy determination based on environment variables, as provided by net/http's ProxyFromEnvironment function.
Package httpproxy provides support for HTTP proxy determination based on environment variables, as provided by net/http's ProxyFromEnvironment function.
internal/x/net/http2/hpack
Package hpack implements HPACK, a compression format for efficiently representing HTTP header fields in the context of HTTP/2.
Package hpack implements HPACK, a compression format for efficiently representing HTTP header fields in the context of HTTP/2.
internal/x/net/idna
Package idna implements IDNA2008 using the compatibility processing defined by UTS (Unicode Technical Standard) #46, which defines a standard to deal with the transition from IDNA2003.
Package idna implements IDNA2008 using the compatibility processing defined by UTS (Unicode Technical Standard) #46, which defines a standard to deal with the transition from IDNA2003.
internal/x/net/internal/nettest
Package nettest provides utilities for network testing.
Package nettest provides utilities for network testing.
internal/x/net/nettest
Package nettest provides utilities for network testing.
Package nettest provides utilities for network testing.
internal/x/net/route
Package route provides basic functions for the manipulation of packet routing facilities on BSD variants.
Package route provides basic functions for the manipulation of packet routing facilities on BSD variants.
internal/x/text/secure
secure is a repository of text security related packages.
secure is a repository of text security related packages.
internal/x/text/secure/bidirule
Package bidirule implements the Bidi Rule defined by RFC 5893.
Package bidirule implements the Bidi Rule defined by RFC 5893.
internal/x/text/transform
Package transform provides reader and writer wrappers that transform the bytes passing through as well as various transformations.
Package transform provides reader and writer wrappers that transform the bytes passing through as well as various transformations.
internal/x/text/unicode
unicode holds packages with implementations of Unicode standards that are mostly used as building blocks for other packages in internal/x/text, layout engines, or are otherwise more low-level in nature.
unicode holds packages with implementations of Unicode standards that are mostly used as building blocks for other packages in internal/x/text, layout engines, or are otherwise more low-level in nature.
internal/x/text/unicode/bidi
Package bidi contains functionality for bidirectional text support.
Package bidi contains functionality for bidirectional text support.
internal/x/text/unicode/norm
Package norm contains types and functions for normalizing Unicode strings.
Package norm contains types and functions for normalizing Unicode strings.
internal/xcoff
Package xcoff implements access to XCOFF (Extended Common Object File Format) files.
Package xcoff implements access to XCOFF (Extended Common Object File Format) files.
io
Package io provides basic interfaces to I/O primitives.
Package io provides basic interfaces to I/O primitives.
io/ioutil
Package ioutil implements some I/O utility functions.
Package ioutil implements some I/O utility functions.
log
Package log implements a simple logging package.
Package log implements a simple logging package.
log/syslog
Package syslog provides a simple interface to the system log service.
Package syslog provides a simple interface to the system log service.
math
Package math provides basic constants and mathematical functions.
Package math provides basic constants and mathematical functions.
math/big
Package big implements arbitrary-precision arithmetic (big numbers).
Package big implements arbitrary-precision arithmetic (big numbers).
math/bits
Package bits implements bit counting and manipulation functions for the predeclared unsigned integer types.
Package bits implements bit counting and manipulation functions for the predeclared unsigned integer types.
math/cmplx
Package cmplx provides basic constants and mathematical functions for complex numbers.
Package cmplx provides basic constants and mathematical functions for complex numbers.
math/rand
Package rand implements pseudo-random number generators.
Package rand implements pseudo-random number generators.
mime
Package mime implements parts of the MIME spec.
Package mime implements parts of the MIME spec.
mime/multipart
Package multipart implements MIME multipart parsing, as defined in RFC 2046.
Package multipart implements MIME multipart parsing, as defined in RFC 2046.
mime/quotedprintable
Package quotedprintable implements quoted-printable encoding as specified by RFC 2045.
Package quotedprintable implements quoted-printable encoding as specified by RFC 2045.
net
Package net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets.
Package net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets.
net/http
Package http provides HTTP client and server implementations.
Package http provides HTTP client and server implementations.
net/http/cgi
Package cgi implements CGI (Common Gateway Interface) as specified in RFC 3875.
Package cgi implements CGI (Common Gateway Interface) as specified in RFC 3875.
net/http/cookiejar
Package cookiejar implements an in-memory RFC 6265-compliant http.CookieJar.
Package cookiejar implements an in-memory RFC 6265-compliant http.CookieJar.
net/http/fcgi
Package fcgi implements the FastCGI protocol.
Package fcgi implements the FastCGI protocol.
net/http/httptest
Package httptest provides utilities for HTTP testing.
Package httptest provides utilities for HTTP testing.
net/http/httptrace
Package httptrace provides mechanisms to trace the events within HTTP client requests.
Package httptrace provides mechanisms to trace the events within HTTP client requests.
net/http/httputil
Package httputil provides HTTP utility functions, complementing the more common ones in the net/http package.
Package httputil provides HTTP utility functions, complementing the more common ones in the net/http package.
net/http/internal
Package internal contains HTTP internals shared by net/http and net/http/httputil.
Package internal contains HTTP internals shared by net/http and net/http/httputil.
net/http/pprof
Package pprof serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool.
Package pprof serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool.
net/internal/socktest
Package socktest provides utilities for socket testing.
Package socktest provides utilities for socket testing.
net/mail
Package mail implements parsing of mail messages.
Package mail implements parsing of mail messages.
net/rpc
Package rpc provides access to the exported methods of an object across a network or other I/O connection.
Package rpc provides access to the exported methods of an object across a network or other I/O connection.
net/rpc/jsonrpc
Package jsonrpc implements a JSON-RPC 1.0 ClientCodec and ServerCodec for the rpc package.
Package jsonrpc implements a JSON-RPC 1.0 ClientCodec and ServerCodec for the rpc package.
net/smtp
Package smtp implements the Simple Mail Transfer Protocol as defined in RFC 5321.
Package smtp implements the Simple Mail Transfer Protocol as defined in RFC 5321.
net/textproto
Package textproto implements generic support for text-based request/response protocols in the style of HTTP, NNTP, and SMTP.
Package textproto implements generic support for text-based request/response protocols in the style of HTTP, NNTP, and SMTP.
net/url
Package url parses URLs and implements query escaping.
Package url parses URLs and implements query escaping.
os
Package os provides a platform-independent interface to operating system functionality.
Package os provides a platform-independent interface to operating system functionality.
os/exec
Package exec runs external commands.
Package exec runs external commands.
os/signal
Package signal implements access to incoming signals.
Package signal implements access to incoming signals.
os/signal/internal/pty
Package pty is a simple pseudo-terminal package for Unix systems, implemented by calling C functions via cgo.
Package pty is a simple pseudo-terminal package for Unix systems, implemented by calling C functions via cgo.
os/user
Package user allows user account lookups by name or id.
Package user allows user account lookups by name or id.
path
Package path implements utility routines for manipulating slash-separated paths.
Package path implements utility routines for manipulating slash-separated paths.
path/filepath
Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.
plugin
Package plugin implements loading and symbol resolution of Go plugins.
Package plugin implements loading and symbol resolution of Go plugins.
reflect
Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types.
Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types.
regexp
Package regexp implements regular expression search.
Package regexp implements regular expression search.
regexp/syntax
Package syntax parses regular expressions into parse trees and compiles parse trees into programs.
Package syntax parses regular expressions into parse trees and compiles parse trees into programs.
runtime
Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines.
runtime/cgo
Package cgo contains runtime support for code generated by the cgo tool.
Package cgo contains runtime support for code generated by the cgo tool.
runtime/debug
Package debug contains facilities for programs to debug themselves while they are running.
Package debug contains facilities for programs to debug themselves while they are running.
runtime/internal/sys
package sys contains system- and configuration- and architecture-specific constants used by the runtime.
package sys contains system- and configuration- and architecture-specific constants used by the runtime.
runtime/pprof
Package pprof writes runtime profiling data in the format expected by the pprof visualization tool.
Package pprof writes runtime profiling data in the format expected by the pprof visualization tool.
runtime/pprof/internal/profile
Package profile provides a representation of profile.proto and methods to encode/decode profiles in this format.
Package profile provides a representation of profile.proto and methods to encode/decode profiles in this format.
runtime/race
Package race implements data race detection logic.
Package race implements data race detection logic.
runtime/trace
Package trace contains facilities for programs to generate traces for the Go execution tracer.
Package trace contains facilities for programs to generate traces for the Go execution tracer.
sort
Package sort provides primitives for sorting slices and user-defined collections.
Package sort provides primitives for sorting slices and user-defined collections.
strconv
Package strconv implements conversions to and from string representations of basic data types.
Package strconv implements conversions to and from string representations of basic data types.
strings
Package strings implements simple functions to manipulate UTF-8 encoded strings.
Package strings implements simple functions to manipulate UTF-8 encoded strings.
sync
Package sync provides basic synchronization primitives such as mutual exclusion locks.
Package sync provides basic synchronization primitives such as mutual exclusion locks.
sync/atomic
Package atomic provides low-level atomic memory primitives useful for implementing synchronization algorithms.
Package atomic provides low-level atomic memory primitives useful for implementing synchronization algorithms.
syscall
Package syscall contains an interface to the low-level operating system primitives.
Package syscall contains an interface to the low-level operating system primitives.
syscall/js
Package js gives access to the WebAssembly host environment when using the js/wasm architecture.
Package js gives access to the WebAssembly host environment when using the js/wasm architecture.
testing
Package testing provides support for automated testing of Go packages.
Package testing provides support for automated testing of Go packages.
testing/internal/testdeps
Package testdeps provides access to dependencies needed by test execution.
Package testdeps provides access to dependencies needed by test execution.
testing/iotest
Package iotest implements Readers and Writers useful mainly for testing.
Package iotest implements Readers and Writers useful mainly for testing.
testing/quick
Package quick implements utility functions to help with black box testing.
Package quick implements utility functions to help with black box testing.
text/scanner
Package scanner provides a scanner and tokenizer for UTF-8-encoded text.
Package scanner provides a scanner and tokenizer for UTF-8-encoded text.
text/tabwriter
Package tabwriter implements a write filter (tabwriter.Writer) that translates tabbed columns in input into properly aligned text.
Package tabwriter implements a write filter (tabwriter.Writer) that translates tabbed columns in input into properly aligned text.
text/template
Package template implements data-driven templates for generating textual output.
Package template implements data-driven templates for generating textual output.
text/template/parse
Package parse builds parse trees for templates as defined by text/template and html/template.
Package parse builds parse trees for templates as defined by text/template and html/template.
time
Package time provides functionality for measuring and displaying time.
Package time provides functionality for measuring and displaying time.
unicode
Package unicode provides data and functions to test some properties of Unicode code points.
Package unicode provides data and functions to test some properties of Unicode code points.
unicode/utf16
Package utf16 implements encoding and decoding of UTF-16 sequences.
Package utf16 implements encoding and decoding of UTF-16 sequences.
unicode/utf8
Package utf8 implements functions and constants to support text encoded in UTF-8.
Package utf8 implements functions and constants to support text encoded in UTF-8.
unsafe
Package unsafe contains operations that step around the type safety of Go programs.
Package unsafe contains operations that step around the type safety of Go programs.
test
ken
stress
The runstress tool stresses the runtime.
The runstress tool stresses the runtime.

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