client

package
v1.1.1 Latest Latest
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 Go to latest Published: May 8, 2018 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation

Overview

Package client verifies responses from the Trillian log.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CreateAndInitTree added in v1.0.7 

func CreateAndInitTree(
	ctx context.Context,
	req *trillian.CreateTreeRequest,
	adminClient trillian.TrillianAdminClient,
	mapClient trillian.TrillianMapClient,
	logClient trillian.TrillianLogClient) (*trillian.Tree, error)

CreateAndInitTree uses the adminClient and mapClient to create the tree described by req. If req describes a MAP tree, then this function will also call the InitMap function using mapClient. Internally, the function will continue to retry failed requests until either the tree is created (and if necessary, initialised) successfully, or ctx is cancelled.

func InitLog added in v1.0.7 

func InitLog(ctx context.Context, tree *trillian.Tree, logClient trillian.TrillianLogClient) error

InitLog initialises a freshly created Log tree.

func InitMap added in v1.0.7 

func InitMap(ctx context.Context, tree *trillian.Tree, mapClient trillian.TrillianMapClient) error

InitMap initialises a freshly created Map tree.

Types

type LogClient 

type LogClient struct {
	*LogVerifier
	LogID int64
	// contains filtered or unexported fields
}

LogClient represents a client for a given Trillian log instance.

func New 

func New(logID int64, client trillian.TrillianLogClient, verifier *LogVerifier) *LogClient

New returns a new LogClient.

func NewFromTree added in v1.0.7 

func NewFromTree(client trillian.TrillianLogClient, config *trillian.Tree) (*LogClient, error)

NewFromTree creates a new LogClient given a tree config.

func (*LogClient) AddLeaf 

func (c *LogClient) AddLeaf(ctx context.Context, data []byte) error

AddLeaf adds leaf to the append only log. Blocks until it gets a verifiable response.

func (*LogClient) GetAndVerifyInclusionAtIndex added in v1.0.7 

func (c *LogClient) GetAndVerifyInclusionAtIndex(ctx context.Context, data []byte, index int64) error

GetAndVerifyInclusionAtIndex updates the log root and ensures that the given leaf data has been included in the log at a particular index.

func (*LogClient) GetByIndex 

func (c *LogClient) GetByIndex(ctx context.Context, index int64) (*trillian.LogLeaf, error)

GetByIndex returns a single leaf at the requested index.

func (*LogClient) ListByIndex 

func (c *LogClient) ListByIndex(ctx context.Context, start, count int64) ([]*trillian.LogLeaf, error)

ListByIndex returns the requested leaves by index.

func (*LogClient) QueueLeaf 

func (c *LogClient) QueueLeaf(ctx context.Context, data []byte) error

QueueLeaf adds a leaf to a Trillian log without blocking. AlreadyExists is considered a success case by this function.

func (*LogClient) UpdateRoot 

func (c *LogClient) UpdateRoot(ctx context.Context) (*types.LogRootV1, error)

UpdateRoot retrieves the current SignedLogRoot, verifying it against roots this client has seen in the past, and updating the currently trusted root if the new root verifies.

func (*LogClient) VerifyInclusion 

func (c *LogClient) VerifyInclusion(ctx context.Context, data []byte) error

VerifyInclusion updates the log root and ensures that the given leaf data has been included in the log.

func (*LogClient) WaitForInclusion 

func (c *LogClient) WaitForInclusion(ctx context.Context, data []byte) error

WaitForInclusion blocks until the requested data has been verified with an inclusion proof. This assumes that the data has already been submitted. Best practice is to call this method with a context that will timeout.

func (*LogClient) WaitForRootUpdate added in v1.0.7 

func (c *LogClient) WaitForRootUpdate(ctx context.Context, waitForTreeSize uint64) (*types.LogRootV1, error)

WaitForRootUpdate repeatedly fetches the Root until the fetched tree size >= waitForTreeSize or until ctx times out.

type LogVerifier 

type LogVerifier struct {
	// Hasher is the hash strategy used to compute nodes in the Merkle tree.
	Hasher hashers.LogHasher
	// PubKey verifies the signature on the digest of LogRoot.
	PubKey crypto.PublicKey
	// SigHash computes the digest of LogRoot for signing.
	SigHash crypto.Hash
	// contains filtered or unexported fields
}

LogVerifier contains state needed to verify output from Trillian Logs.

func NewLogVerifier 

func NewLogVerifier(hasher hashers.LogHasher, pubKey crypto.PublicKey, sigHash crypto.Hash) *LogVerifier

NewLogVerifier returns an object that can verify output from Trillian Logs.

func NewLogVerifierFromTree added in v1.0.7 

func NewLogVerifierFromTree(config *trillian.Tree) (*LogVerifier, error)

NewLogVerifierFromTree creates a new LogVerifier using the algorithms specified by *trillian.Tree.

func (*LogVerifier) BuildLeaf added in v1.0.7 

func (c *LogVerifier) BuildLeaf(data []byte) (*trillian.LogLeaf, error)

BuildLeaf runs the leaf hasher over data and builds a leaf.

func (*LogVerifier) VerifyInclusionAtIndex 

func (c *LogVerifier) VerifyInclusionAtIndex(trusted *types.LogRootV1, data []byte, leafIndex int64, proof [][]byte) error

VerifyInclusionAtIndex verifies that the inclusion proof for data at index matches the currently trusted root. The inclusion proof must be requested for Root().TreeSize.

func (*LogVerifier) VerifyInclusionByHash 

func (c *LogVerifier) VerifyInclusionByHash(trusted *types.LogRootV1, leafHash []byte, proof *trillian.Proof) error

VerifyInclusionByHash verifies the inclusion proof for data

func (*LogVerifier) VerifyRoot 

func (c *LogVerifier) VerifyRoot(trusted *types.LogRootV1, newRoot *trillian.SignedLogRoot,
	consistency [][]byte) (*types.LogRootV1, error)

VerifyRoot verifies that newRoot is a valid append-only operation from trusted. If trusted.TreeSize is zero, a consistency proof is not needed.

type MapVerifier added in v1.0.7 

type MapVerifier struct {
	MapID int64
	// Hasher is the hash strategy used to compute nodes in the Merkle tree.
	Hasher hashers.MapHasher
	// PubKey verifies the signature on the digest of MapRoot.
	PubKey crypto.PublicKey
	// SigHash computes the digest of MapRoot for signing.
	SigHash crypto.Hash
}

MapVerifier verifies protos produced by the Trillian Map.

func NewMapVerifierFromTree added in v1.0.7 

func NewMapVerifierFromTree(config *trillian.Tree) (*MapVerifier, error)

NewMapVerifierFromTree creates a new MapVerifier.

func (*MapVerifier) VerifyMapLeafInclusion added in v1.0.7 

func (m *MapVerifier) VerifyMapLeafInclusion(smr *trillian.SignedMapRoot, leafProof *trillian.MapLeafInclusion) error

VerifyMapLeafInclusion verifies a MapLeafInclusion response against a signed map root.

func (*MapVerifier) VerifyMapLeafInclusionHash added in v1.1.1 

func (m *MapVerifier) VerifyMapLeafInclusionHash(rootHash []byte, leafProof *trillian.MapLeafInclusion) error

VerifyMapLeafInclusionHash verifies a MapLeafInclusion response against a root hash.

func (*MapVerifier) VerifySignedMapRoot added in v1.0.7 

func (m *MapVerifier) VerifySignedMapRoot(smr *trillian.SignedMapRoot) (*types.MapRootV1, error)

VerifySignedMapRoot verifies the signature on the SignedMapRoot.

type MockLogClient 

type MockLogClient struct {
	// contains filtered or unexported fields
}

MockLogClient supports applying mutations to the return values of the TrillianLogClient

func (*MockLogClient) AddSequencedLeaf added in v1.0.7 

func (c *MockLogClient) AddSequencedLeaf(ctx context.Context, in *trillian.AddSequencedLeafRequest, opts ...grpc.CallOption) (*trillian.AddSequencedLeafResponse, error)

AddSequencedLeaf forwards requests.

func (*MockLogClient) AddSequencedLeaves added in v1.0.7 

func (c *MockLogClient) AddSequencedLeaves(ctx context.Context, in *trillian.AddSequencedLeavesRequest, opts ...grpc.CallOption) (*trillian.AddSequencedLeavesResponse, error)

AddSequencedLeaves forwards requests.

func (*MockLogClient) GetConsistencyProof 

func (c *MockLogClient) GetConsistencyProof(ctx context.Context, in *trillian.GetConsistencyProofRequest, opts ...grpc.CallOption) (*trillian.GetConsistencyProofResponse, error)

GetConsistencyProof forwards requests and optionally corrupts responses.

func (*MockLogClient) GetEntryAndProof 

func (c *MockLogClient) GetEntryAndProof(ctx context.Context, in *trillian.GetEntryAndProofRequest, opts ...grpc.CallOption) (*trillian.GetEntryAndProofResponse, error)

GetEntryAndProof forwards requests.

func (*MockLogClient) GetInclusionProof 

func (c *MockLogClient) GetInclusionProof(ctx context.Context, in *trillian.GetInclusionProofRequest, opts ...grpc.CallOption) (*trillian.GetInclusionProofResponse, error)

GetInclusionProof forwards requests and optionally corrupts the response.

func (*MockLogClient) GetInclusionProofByHash 

func (c *MockLogClient) GetInclusionProofByHash(ctx context.Context, in *trillian.GetInclusionProofByHashRequest, opts ...grpc.CallOption) (*trillian.GetInclusionProofByHashResponse, error)

GetInclusionProofByHash forwards requests and optionaly corrupts responses.

func (*MockLogClient) GetLatestSignedLogRoot 

func (c *MockLogClient) GetLatestSignedLogRoot(ctx context.Context, in *trillian.GetLatestSignedLogRootRequest, opts ...grpc.CallOption) (*trillian.GetLatestSignedLogRootResponse, error)

GetLatestSignedLogRoot forwards requests.

func (*MockLogClient) GetLeavesByHash 

func (c *MockLogClient) GetLeavesByHash(ctx context.Context, in *trillian.GetLeavesByHashRequest, opts ...grpc.CallOption) (*trillian.GetLeavesByHashResponse, error)

GetLeavesByHash forwards requests.

func (*MockLogClient) GetLeavesByIndex 

func (c *MockLogClient) GetLeavesByIndex(ctx context.Context, in *trillian.GetLeavesByIndexRequest, opts ...grpc.CallOption) (*trillian.GetLeavesByIndexResponse, error)

GetLeavesByIndex forwards requests.

func (*MockLogClient) GetLeavesByRange added in v1.0.6 

func (c *MockLogClient) GetLeavesByRange(ctx context.Context, in *trillian.GetLeavesByRangeRequest, opts ...grpc.CallOption) (*trillian.GetLeavesByRangeResponse, error)

GetLeavesByRange forwards requests.

func (*MockLogClient) GetSequencedLeafCount 

func (c *MockLogClient) GetSequencedLeafCount(ctx context.Context, in *trillian.GetSequencedLeafCountRequest, opts ...grpc.CallOption) (*trillian.GetSequencedLeafCountResponse, error)

GetSequencedLeafCount forwards requests.

func (*MockLogClient) InitLog added in v1.0.7 

func (c *MockLogClient) InitLog(ctx context.Context, in *trillian.InitLogRequest, opts ...grpc.CallOption) (*trillian.InitLogResponse, error)

InitLog forwards requests.

func (*MockLogClient) QueueLeaf 

func (c *MockLogClient) QueueLeaf(ctx context.Context, in *trillian.QueueLeafRequest, opts ...grpc.CallOption) (*trillian.QueueLeafResponse, error)

QueueLeaf forwards requests.

func (*MockLogClient) QueueLeaves 

func (c *MockLogClient) QueueLeaves(ctx context.Context, in *trillian.QueueLeavesRequest, opts ...grpc.CallOption) (*trillian.QueueLeavesResponse, error)

QueueLeaves forwards requests.

Source Files

View all Source files

Directories

Path Synopsis
Package backoff allows retrying an operation with backoff.
 Package backoff allows retrying an operation with backoff.

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