alts

package
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Published: Nov 2, 2020 License: MIT, Apache-2.0 Imports: 20 Imported by: 0

Documentation

Overview

Package alts implements the ALTS credential support by gRPC library, which encapsulates all the state needed by a client to authenticate with a server using ALTS and make various assertions, e.g., about the client's identity, role, or whether it is authorized to make a particular call. This package is experimental.

Index

Constants

This section is empty.

Variables

View Source
var (

	// ErrUntrustedPlatform is returned from ClientHandshake and
	// ServerHandshake is running on a platform where the trustworthiness of
	// the handshaker service is not guaranteed.
	ErrUntrustedPlatform = errors.New("untrusted platform")
)

Functions

func NewClientCreds

func NewClientCreds(opts *ClientOptions) credentials.TransportCredentials

NewClientCreds constructs a client-side ALTS TransportCredentials object.

func NewServerCreds

func NewServerCreds(opts *ServerOptions) credentials.TransportCredentials

NewServerCreds constructs a server-side ALTS TransportCredentials object.

Types

type AuthInfo

type AuthInfo interface {
	// ApplicationProtocol returns application protocol negotiated for the
	// ALTS connection.
	ApplicationProtocol() string
	// RecordProtocol returns the record protocol negotiated for the ALTS
	// connection.
	RecordProtocol() string
	// SecurityLevel returns the security level of the created ALTS secure
	// channel.
	SecurityLevel() altspb.SecurityLevel
	// PeerServiceAccount returns the peer service account.
	PeerServiceAccount() string
	// LocalServiceAccount returns the local service account.
	LocalServiceAccount() string
	// PeerRPCVersions returns the RPC version supported by the peer.
	PeerRPCVersions() *altspb.RpcProtocolVersions
}

AuthInfo exposes security information from the ALTS handshake to the application. This interface is to be implemented by ALTS. Users should not need a brand new implementation of this interface. For situations like testing, any new implementation should embed this interface. This allows ALTS to add new methods to this interface.

type ClientOptions

type ClientOptions struct {
	// TargetServiceAccounts contains a list of expected target service
	// accounts.
	TargetServiceAccounts []string
	// HandshakerServiceAddress represents the ALTS handshaker gRPC service
	// address to connect to.
	HandshakerServiceAddress string
}

ClientOptions contains the client-side options of an ALTS channel. These options will be passed to the underlying ALTS handshaker.

func DefaultClientOptions

func DefaultClientOptions() *ClientOptions

DefaultClientOptions creates a new ClientOptions object with the default values.

type ServerOptions

type ServerOptions struct {
	// HandshakerServiceAddress represents the ALTS handshaker gRPC service
	// address to connect to.
	HandshakerServiceAddress string
}

ServerOptions contains the server-side options of an ALTS channel. These options will be passed to the underlying ALTS handshaker.

func DefaultServerOptions

func DefaultServerOptions() *ServerOptions

DefaultServerOptions creates a new ServerOptions object with the default values.

Directories

Path Synopsis
Package core contains common core functionality for ALTS.
Package core contains common core functionality for ALTS.
authinfo
Package authinfo provide authentication information returned by handshakers.
Package authinfo provide authentication information returned by handshakers.
conn
Package conn contains an implementation of a secure channel created by gRPC handshakers.
Package conn contains an implementation of a secure channel created by gRPC handshakers.
handshaker
Package handshaker provides ALTS handshaking functionality for GCP.
Package handshaker provides ALTS handshaking functionality for GCP.
handshaker/service
Package service manages connections between the VM application and the ALTS handshaker service.
Package service manages connections between the VM application and the ALTS handshaker service.
proto/grpc_gcp
Package grpc_gcp is a generated protocol buffer package.
Package grpc_gcp is a generated protocol buffer package.
testutil
Package testutil include useful test utilities for the handshaker.
Package testutil include useful test utilities for the handshaker.

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