utils

package
v0.0.0-...-cfcde66 Latest Latest
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 Go to latest Published: Jan 25, 2019 License: Apache-2.0 Imports: 23 Imported by: 4

Documentation

Index

Constants

View Source 
const (
	// NonceSize is the default NonceSize
	NonceSize = 24
)

Variables

This section is empty.

Functions

func ComputeProposalTxID 

func ComputeProposalTxID(nonce, creator []byte) (string, error)

ComputeProposalTxID computes TxID as the Hash computed over the concatenation of nonce and creator.

func ComputeProposalTxIDByGenerator 

func ComputeProposalTxIDByGenerator(generator []byte) (string, error)

func ComputeSHA256 

func ComputeSHA256(data []byte) (hash []byte)

ComputeSHA256 returns SHA2-256 on data

func CreateChaincodeProposal 

func CreateChaincodeProposal(typ cb.HeaderType, chainID string, cis *peer.ChaincodeInvocationSpec, creator []byte) (*peer.Proposal, string, error)

CreateChaincodeProposal creates a proposal from given input. It returns the proposal and the transaction id associated to the proposal

func CreateChaincodeProposalWithTransient 

func CreateChaincodeProposalWithTransient(typ cb.HeaderType, chainID string, cis *peer.ChaincodeInvocationSpec, creator []byte, transientMap map[string][]byte) (*peer.Proposal, string, error)

CreateChaincodeProposalWithTransient creates a proposal from given input It returns the proposal and the transaction id associated to the proposal

func CreateChaincodeProposalWithTxIDGeneratorAndTransient 

func CreateChaincodeProposalWithTxIDGeneratorAndTransient(typ cb.HeaderType, chainID string, cis *peer.ChaincodeInvocationSpec, creator []byte, generator []byte, transientMap map[string][]byte) (*peer.Proposal, string, error)

CreateChaincodeProposalWithTransient creates a proposal from given input It returns the proposal and the transaction id associated to the proposal

func CreateChaincodeProposalWithTxIDNonceAndTransient 

func CreateChaincodeProposalWithTxIDNonceAndTransient(txid string, typ cb.HeaderType, chainID string, cis *peer.ChaincodeInvocationSpec, nonce, creator []byte, transientMap map[string][]byte) (*peer.Proposal, string, error)

CreateChaincodeProposalWithTxIDNonceAndTransient creates a proposal from given input

func CreateProposalFromCIS 

func CreateProposalFromCIS(typ cb.HeaderType, chainID string, cis *peer.ChaincodeInvocationSpec, creator []byte) (*peer.Proposal, string, error)

CreateProposalFromCIS returns a proposal given a serialized identity and a ChaincodeInvocationSpec

func CreateSignedTx 

func CreateSignedTx(proposal *peer.Proposal, signer *ecdsa.PrivateKey, creator []byte, resps ...*peer.ProposalResponse) (*cb.Envelope, error)

CreateSignedTx assembles an Envelope message from proposal, endorsements, and a signer. This function should be called by a client when it has collected enough endorsements for a proposal to create a transaction and submit it to peers for ordering

func CreateUtcTimestamp 

func CreateUtcTimestamp() *timestamp.Timestamp

CreateUtcTimestamp returns a google/protobuf/Timestamp in UTC

func DERToPrivateKey 

func DERToPrivateKey(der []byte) (key interface{}, err error)

DERToPrivateKey unmarshals a der to private key

func GetBytesChaincodeActionPayload 

func GetBytesChaincodeActionPayload(cap *peer.ChaincodeActionPayload) ([]byte, error)

GetBytesChaincodeActionPayload get the bytes of ChaincodeActionPayload from the message

func GetBytesChaincodeProposalPayload 

func GetBytesChaincodeProposalPayload(cpp *peer.ChaincodeProposalPayload) ([]byte, error)

GetBytesChaincodeProposalPayload gets the chaincode proposal payload

func GetBytesPayload 

func GetBytesPayload(payl *cb.Payload) ([]byte, error)

GetBytesPayload get the bytes of Payload from the message

func GetBytesProposal 

func GetBytesProposal(prop *peer.Proposal) ([]byte, error)

GetBytesProposal returns the bytes of a proposal message

func GetBytesProposalPayloadForTx 

func GetBytesProposalPayloadForTx(payload *peer.ChaincodeProposalPayload, visibility []byte) ([]byte, error)

GetBytesProposalPayloadForTx takes a ChaincodeProposalPayload and returns its serialized version according to the visibility field

func GetBytesTransaction 

func GetBytesTransaction(tx *peer.Transaction) ([]byte, error)

GetBytesTransaction get the bytes of Transaction from the message

func GetChaincodeAction 

func GetChaincodeAction(caBytes []byte) (*peer.ChaincodeAction, error)

GetChaincodeAction gets the ChaincodeAction given chaicnode action bytes

func GetChaincodeActionPayload 

func GetChaincodeActionPayload(capBytes []byte) (*peer.ChaincodeActionPayload, error)

GetChaincodeActionPayload Get ChaincodeActionPayload from bytes

func GetChaincodeEvents 

func GetChaincodeEvents(eBytes []byte) (*peer.ChaincodeEvent, error)

GetChaincodeEvents gets the ChaincodeEvents given chaincode event bytes

func GetChaincodeHeaderExtension 

func GetChaincodeHeaderExtension(hdr *cb.Header) (*peer.ChaincodeHeaderExtension, error)

GetChaincodeHeaderExtension get chaincode header extension given header

func GetChaincodeProposalPayload 

func GetChaincodeProposalPayload(bytes []byte) (*peer.ChaincodeProposalPayload, error)

GetChaincodeProposalPayload Get ChaincodeProposalPayload from bytes

func GetChaincodeSpecification 

func GetChaincodeSpecification(chaincodeName string, chaincodeVersion string, funcName string, inputArgs ...string) (*peer.ChaincodeSpec, error)

func GetCurveHalfOrdersAt 

func GetCurveHalfOrdersAt(c elliptic.Curve) *big.Int

func GetEnvelopeFromBlock 

func GetEnvelopeFromBlock(data []byte) (*cb.Envelope, error)

GetEnvelopeFromBlock gets an envelope from a block's Data field.

func GetHash 

func GetHash() hash.Hash

func GetHeader 

func GetHeader(bytes []byte) (*cb.Header, error)

GetHeader Get Header from bytes

func GetPayload 

func GetPayload(e *cb.Envelope) (*cb.Payload, error)

GetPayload Get Payload from Envelope message

func GetProposalResponsePayload 

func GetProposalResponsePayload(prpBytes []byte) (*peer.ProposalResponsePayload, error)

GetProposalResponsePayload gets the proposal response payload

func GetRandomBytes 

func GetRandomBytes(len int) ([]byte, error)

GetRandomBytes returns len random looking bytes

func GetRandomNonce 

func GetRandomNonce() ([]byte, error)

GetRandomNonce returns a random byte array of length NonceSize

func GetSignatureHeader 

func GetSignatureHeader(bytes []byte) (*cb.SignatureHeader, error)

GetSignatureHeader Get SignatureHeader from bytes

func GetSignedEvent 

func GetSignedEvent(evt *peer.Event, signer *ecdsa.PrivateKey) (*peer.SignedEvent, error)

GetSignedEvent returns a signed event given an Event message and a signing identity

func GetSignedProposal 

func GetSignedProposal(prop *peer.Proposal, signer *ecdsa.PrivateKey) (*peer.SignedProposal, error)

GetSignedProposal returns a signed proposal given a Proposal message and a signing identity

func GetTransaction 

func GetTransaction(txBytes []byte) (*peer.Transaction, error)

GetTransaction Get Transaction from bytes

func IsLowS 

func IsLowS(k *ecdsa.PublicKey, s *big.Int) (bool, error)

IsLow checks that s is a low-S

func MarshalECDSASignature 

func MarshalECDSASignature(r, s *big.Int) ([]byte, error)

func MarshalOrPanic 

func MarshalOrPanic(pb proto.Message) []byte

MarshalOrPanic serializes a protobuf message and panics if this operation fails.

func PEMtoPrivateKey 

func PEMtoPrivateKey(raw []byte, pwd []byte) (interface{}, error)

PEMtoPrivateKey unmarshals a pem to private key

func ReadCertFile 

func ReadCertFile(filepath string) ([]byte, error)

func ReadPrivateKey 

func ReadPrivateKey(filename string, pwd []byte) (interface{}, error)

func SerializeCert 

func SerializeCert(certPEM []byte) ([]byte, error)

Serialize returns a byte array representation of this identity

func Sign 

func Sign(k *ecdsa.PrivateKey, message []byte) (signature []byte, err error)

func ToChaincodeArgs 

func ToChaincodeArgs(args ...string) [][]byte

ToChaincodeArgs converts string args to []byte args

func ToLowS 

func ToLowS(k *ecdsa.PublicKey, s *big.Int) (*big.Int, bool, error)

func UnmarshalChannelHeader 

func UnmarshalChannelHeader(bytes []byte) (*cb.ChannelHeader, error)

UnmarshalChannelHeader returns a ChannelHeader from bytes

func UnmarshalECDSASignature 

func UnmarshalECDSASignature(raw []byte) (*big.Int, *big.Int, error)

func UnmarshalValidateCodeFromProposalResponse 

func UnmarshalValidateCodeFromProposalResponse(response *peer.ProposalResponse) (string, error)

func Verify 

func Verify(k *ecdsa.PublicKey, signature, message []byte) (valid bool, err error)

Types

type ECDSASignature 

type ECDSASignature struct {
	R, S *big.Int
}

type SerializedIdentity 

type SerializedIdentity struct {
	// The identifier of the associated membership service provider
	Mspid string `protobuf:"bytes,1,opt,name=mspid" json:"mspid,omitempty"`
	// the Identity, serialized according to the rules of its MPS
	IdBytes []byte `protobuf:"bytes,2,opt,name=id_bytes,json=idBytes,proto3" json:"id_bytes,omitempty"`
}

This struct represents an Identity (with its MSP identifier) to be used to serialize it and deserialize it

func (*SerializedIdentity) GetIdBytes 

func (m *SerializedIdentity) GetIdBytes() []byte

func (*SerializedIdentity) GetMspid 

func (m *SerializedIdentity) GetMspid() string

func (*SerializedIdentity) ProtoMessage 

func (*SerializedIdentity) ProtoMessage()

func (*SerializedIdentity) Reset 

func (m *SerializedIdentity) Reset()

func (*SerializedIdentity) String 

func (m *SerializedIdentity) String() string

type TxValidationFlags 

type TxValidationFlags []uint8

TxValidationFlags is array of transaction validation codes. It is used when committer validates block.

func NewTxValidationFlags 

func NewTxValidationFlags(size int) TxValidationFlags

NewTxValidationFlags Create new object-array of validation codes with target size. Default values: valid.

func (TxValidationFlags) Flag 

func (obj TxValidationFlags) Flag(txIndex int) peer.TxValidationCode

Flag returns validation code at specified transaction

func (TxValidationFlags) IsInvalid 

func (obj TxValidationFlags) IsInvalid(txIndex int) bool

IsInvalid checks if specified transaction is invalid

func (TxValidationFlags) IsSetTo 

func (obj TxValidationFlags) IsSetTo(txIndex int, flag peer.TxValidationCode) bool

IsSetTo returns true if the specified transaction equals flag; false otherwise.

func (TxValidationFlags) IsValid 

func (obj TxValidationFlags) IsValid(txIndex int) bool

IsValid checks if specified transaction is valid

func (TxValidationFlags) SetFlag 

func (obj TxValidationFlags) SetFlag(txIndex int, flag peer.TxValidationCode)

SetFlag assigns validation code to specified transaction

Source Files

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