protocol

package
v0.0.0-...-363963d Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Mar 21, 2020 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	HASH_LEN   = 32
	HEIGHT_LEN = 4
	//All fixed sizes form the Block struct are 254
	MIN_BLOCKSIZE           = 393 + crypto.COMM_PROOF_LENGTH + 1 // = 650 bytes
	MIN_BLOCKHEADER_SIZE    = 104
	BLOOM_FILTER_ERROR_RATE = 0.1
)
View Source 
const (
	CONFIGTX_SIZE = 83

	BLOCK_SIZE_ID           = 1
	DIFF_INTERVAL_ID        = 2
	FEE_MINIMUM_ID          = 3
	BLOCK_INTERVAL_ID       = 4
	BLOCK_REWARD_ID         = 5
	STAKING_MINIMUM_ID      = 6
	WAITING_MINIMUM_ID      = 7
	ACCEPTANCE_TIME_DIFF_ID = 8
	SLASHING_WINDOW_SIZE_ID = 9
	SLASHING_REWARD_ID      = 10

	MIN_BLOCK_SIZE = 1000      //1KB
	MAX_BLOCK_SIZE = 100000000 //100MB

	MIN_DIFF_INTERVAL = 3 //amount in seconds
	MAX_DIFF_INTERVAL = 9223372036854775807

	MIN_FEE_MINIMUM = 0
	MAX_FEE_MINIMUM = 9223372036854775807

	MIN_BLOCK_INTERVAL = 3     //30 seconds
	MAX_BLOCK_INTERVAL = 86400 //24 hours

	MIN_BLOCK_REWARD = 0
	MAX_BLOCK_REWARD = 1152921504606846976 //2^60

	MIN_STAKING_MINIMUM = 5                   //minimum number of coins for staking
	MAX_STAKING_MINIMUM = 9223372036854775807 //2^60

	MIN_WAITING_TIME = 0 //number of blocks that must a new validator must wait before it can start validating
	MAX_WAITING_TIME = 100000

	MIN_ACCEPTANCE_TIME_DIFF = 0  //semi-synchronous time difference between local clock of validators
	MAX_ACCEPTANCE_TIME_DIFF = 60 //1min

	MIN_SLASHING_WINDOW_SIZE = 0     //window size where a node has to commit itself to a competing branch in case of a fork
	MAX_SLASHING_WINDOW_SIZE = 10000 //1000 Blocks (totally random)

	MIN_SLASHING_REWARD = 0                   // reward for providing a valid slashing proof
	MAX_SLASHING_REWARD = 1152921504606846976 //2^60
)
View Source 
const (
	ACCTX_SIZE = 169
)
View Source 
const (
	//TODO recalculate
	AGGDATATX_SIZE = 0 //Only constant Values --> Without To, From & AggregatedTxSlice
)
View Source 
const (
	AGGTX_SIZE = 85 //Only constant Values --> Without To, From & AggregatedTxSlice
)
View Source 
const (
	//TODO Recalculate
	COMMITTEETX_SIZE = 0
)
View Source 
const (
	CONTRACTTX_SIZE = 201
)
View Source 
const (
	//TODO calculate
	DATATX_SIZE = 0
)
View Source 
const (
	FINETX_SIZE = 246 //Todo recalculate
)
View Source 
const (
	FUNDSTX_SIZE = 246
)
View Source 
const (
	STAKETX_SIZE = 106 + crypto.COMM_KEY_LENGTH
)

Variables

This section is empty.

Functions

func CheckForHeightBlock 

func CheckForHeightBlock(blockStash *BlockStash, height uint32) int

This function counts how many blocks in the stash have some predefined height

func CheckForHeightCommitteeCheck 

func CheckForHeightCommitteeCheck(committeeCheckStash *CommitteeCheckStash, height uint32) int

This function counts how many state transisitions in the stash have some predefined height

func CheckForHeightStateTransition 

func CheckForHeightStateTransition(statestash *StateStash, height uint32) int

This function counts how many state transisitions in the stash have some predefined height

func CheckForHeightTransactionAssignment 

func CheckForHeightTransactionAssignment(transactionAssignmentStash *TransactionAssignmentStash, height uint32) int

This function counts how many transaction assignments in the stash have some predefined height

func Decode 

func Decode(encodedData []byte, sliceSize int) (data [][]byte)

func Encode 

func Encode(data [][]byte, sliceSize int) []byte

func RandomBytes 

func RandomBytes() []byte

func RandomBytesWithLength 

func RandomBytesWithLength(length int) []byte

func ReturnBlockHashesForHeight 

func ReturnBlockHashesForHeight(blockStash *BlockStash, height uint32) [][32]byte

func SerializeHashContent 

func SerializeHashContent(data interface{}) (hash [32]byte)

Serializes the input and returns the sha3 hash function applied on ths input

Types

type AccTx 

type AccTx struct {
	Header            byte
	Issuer            [32]byte
	Fee               uint64
	PubKey            [64]byte
	Sig               [64]byte
	Contract          []byte
	ContractVariables []ByteArray
}

func ConstrAccTx 

func ConstrAccTx(header byte, fee uint64, address [64]byte, rootPrivKey *ecdsa.PrivateKey, contract []byte, contractVariables []ByteArray) (tx *AccTx, newAccAddress *ecdsa.PrivateKey, err error)

func (*AccTx) Decode 

func (*AccTx) Decode(encoded []byte) (tx *AccTx)

func (*AccTx) Encode 

func (tx *AccTx) Encode() []byte

func (*AccTx) Hash 

func (tx *AccTx) Hash() [32]byte

func (*AccTx) Receiver 

func (tx *AccTx) Receiver() [32]byte

func (*AccTx) Sender 

func (tx *AccTx) Sender() [32]byte

func (*AccTx) Size 

func (tx *AccTx) Size() uint64

func (AccTx) String 

func (tx AccTx) String() string

func (*AccTx) TxFee 

func (tx *AccTx) TxFee() uint64

type Account 

type Account struct {
	Address            [64]byte                     // 64 Byte
	Issuer             [32]byte                     // 32 Byte
	Balance            uint64                       // 8 Byte
	TxCnt              uint32                       // 4 Byte
	IsStaking          bool                         // 1 Byte
	IsCommittee        bool                         // 1 Byte
	CommitmentKey      [crypto.COMM_KEY_LENGTH]byte // represents the modulus N of the RSA public key
	CommitteeKey       [crypto.COMM_KEY_LENGTH]byte // represents the modulus N of the RSA public key
	StakingBlockHeight uint32                       // 4 Byte
	Contract           []byte                       // Arbitrary length
	ContractVariables  []ByteArray                  // Arbitrary length
}

func NewAccount 

func NewAccount(address [64]byte,
	issuer [32]byte,
	balance uint64,
	isStaking bool,
	isCommittee bool,
	commitmentKey [crypto.COMM_KEY_LENGTH]byte,
	committeeKey [crypto.COMM_KEY_LENGTH]byte,
	contract []byte,
	contractVariables []ByteArray) Account

func (*Account) Decode 

func (*Account) Decode(encoded []byte) (acc *Account)

func (*Account) Encode 

func (acc *Account) Encode() []byte

func (*Account) Hash 

func (acc *Account) Hash() [32]byte

func (Account) String 

func (acc Account) String() string

type AggDataTx 

type AggDataTx struct {
	Fee uint64
	//only one sender for each aggregated data transaction
	From             [32]byte
	To               [][32]byte
	AggregatedDataTx [][32]byte
	Data             [][]byte
}

func ConstrAggDataTx 

func ConstrAggDataTx(data [][]byte, fee uint64, from [32]byte, to [][32]byte, transactions [][32]byte) (tx *AggDataTx, err error)

func (*AggDataTx) Decode 

func (*AggDataTx) Decode(encodedTx []byte) *AggDataTx

func (*AggDataTx) Encode 

func (tx *AggDataTx) Encode() (encodedTx []byte)

when we serialize the struct with binary.Write, unexported field get serialized as well, undesired behavior. Therefore, writing own encoder/decoder

func (*AggDataTx) Hash 

func (tx *AggDataTx) Hash() (hash [32]byte)

func (*AggDataTx) Receiver 

func (tx *AggDataTx) Receiver() [32]byte

func (*AggDataTx) Sender 

func (tx *AggDataTx) Sender() [32]byte

func (*AggDataTx) Size 

func (tx *AggDataTx) Size() uint64

func (AggDataTx) String 

func (tx AggDataTx) String() string

func (*AggDataTx) TxFee 

func (tx *AggDataTx) TxFee() uint64

type AggTx 

type AggTx struct {
	Amount            uint64
	Fee               uint64
	From              [][32]byte
	To                [][32]byte
	AggregatedTxSlice [][32]byte
	//says if the AggTx has been aggregated into another AggTx. not needed anymore.
	Aggregated bool
	Block      [32]byte //This saves the blockHashWithoutTransactions into which the transaction was usually validated. Needed for rollback.
	MerkleRoot [32]byte
}

func ConstrAggTx 

func ConstrAggTx(amount uint64, fee uint64, from [][32]byte, to [][32]byte, transactions [][32]byte) (tx *AggTx, err error)

func (*AggTx) Decode 

func (*AggTx) Decode(encodedTx []byte) *AggTx

func (*AggTx) Encode 

func (tx *AggTx) Encode() (encodedTx []byte)

when we serialize the struct with binary.Write, unexported field get serialized as well, undesired behavior. Therefore, writing own encoder/decoder

func (*AggTx) Hash 

func (tx *AggTx) Hash() (hash [32]byte)

func (*AggTx) Receiver 

func (tx *AggTx) Receiver() [32]byte

func (*AggTx) Sender 

func (tx *AggTx) Sender() [32]byte

func (*AggTx) Size 

func (tx *AggTx) Size() uint64

func (AggTx) String 

func (tx AggTx) String() string

func (*AggTx) TxFee 

func (tx *AggTx) TxFee() uint64

type Block 

type Block struct {
	//Header
	Header   byte
	ShardId  int
	Hash     [32]byte
	PrevHash [32]byte
	//	HashWithoutTx   	[32]byte 			//valid hash once all tx are aggregated
	//	PrevHashWithoutTx  	[32]byte			//valid hash of ancestor once all tx are aggregated
	NrConfigTx   uint8
	NrElementsBF uint16
	BloomFilter  *bloom.BloomFilter //8 byte
	Height       uint32
	Beneficiary  [32]byte

	//Body
	Nonce                 [8]byte
	Timestamp             int64
	MerkleRoot            [32]byte
	NrAccTx               uint16
	NrFundsTx             uint16
	NrStakeTx             uint16
	NrCommitteeTx         uint16
	NrAggTx               uint16
	NrDataTx              uint16
	NrAggDataTx           uint16
	NrFineTx              uint16
	SlashedAddress        [32]byte
	CommitmentProof       [crypto.COMM_PROOF_LENGTH]byte
	ConflictingBlockHash1 [32]byte
	ConflictingBlockHash2 [32]byte
	//	ConflictingBlockHashWithoutTx1 [32]byte
	//	ConflictingBlockHashWithoutTx2 [32]byte
	StateCopy map[[32]byte]*Account //won't be serialized, just keeping track of local state changes

	ContractTxData  [][32]byte
	AccTxData       [][32]byte
	FundsTxData     [][32]byte
	DataTxData      [][32]byte
	ConfigTxData    [][32]byte
	StakeTxData     [][32]byte
	CommitteeTxData [][32]byte
	AggTxData       [][32]byte
	AggDataTxData   [][32]byte
	FineTxData      [][32]byte
}

func NewBlock 

func NewBlock(prevHash [32]byte, height uint32) *Block

func ReturnBlockForPosition 

func ReturnBlockForPosition(blockStash *BlockStash, position int) (stateHash [32]byte, block *Block)

func ReturnBlockStashForHeight 

func ReturnBlockStashForHeight(blockStash *BlockStash, height uint32) []*Block

func (*Block) Decode 

func (block *Block) Decode(encoded []byte) (b *Block)

func (*Block) Encode 

func (block *Block) Encode() []byte

func (*Block) EncodeHeader 

func (block *Block) EncodeHeader() []byte

func (*Block) GetBloomFilterSize 

func (block *Block) GetBloomFilterSize() uint64

func (*Block) GetBodySize 

func (block *Block) GetBodySize() uint64

func (*Block) GetHeaderSize 

func (block *Block) GetHeaderSize() uint64

func (*Block) GetSize 

func (block *Block) GetSize() uint64

func (*Block) GetTxDataSize 

func (block *Block) GetTxDataSize() uint64

func (*Block) HashBlock 

func (block *Block) HashBlock() [32]byte

func (*Block) HashBlockWithoutMerkleRoot 

func (block *Block) HashBlockWithoutMerkleRoot() [32]byte

func (*Block) InitBloomFilter 

func (block *Block) InitBloomFilter(txPubKeys [][32]byte)

func (Block) String 

func (block Block) String() string

type BlockStash 

type BlockStash struct {
	M    map[KeyBlock]ValueBlock
	Keys []KeyBlock
}

func NewShardBlockStash 

func NewShardBlockStash() *BlockStash

func (*BlockStash) BlockIncluded 

func (m *BlockStash) BlockIncluded(k KeyBlock) bool

func (*BlockStash) DeleteFirstEntry 

func (m *BlockStash) DeleteFirstEntry()

This function includes a key and tracks its order in the slice. No need to put the lock because it is used from the calling function

func (*BlockStash) Set 

func (m *BlockStash) Set(k KeyBlock, v ValueBlock)

This function includes a key and tracks its order in the slice

type ByteArray 

type ByteArray []byte

type Change 

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

func NewChange 

func NewChange(index int, value []byte) Change

func (*Change) GetChange 

func (c *Change) GetChange() (int, []byte)

type CommitteeCheck 

type CommitteeCheck struct {
	Height                    int
	Sender                    [32]byte
	CommitteeProof            [crypto.COMM_PROOF_LENGTH]byte
	SlashedAddressesCommittee [][32]byte
	SlashedAddressesShards    [][32]byte
}

func NewCommitteeCheck 

func NewCommitteeCheck(height int, sender [32]byte, committeeProof [crypto.COMM_PROOF_LENGTH]byte, slashedAddressesCommittee [][32]byte, slashedAddressesShards [][32]byte) *CommitteeCheck

func ReturnCommitteeCheckForHeight 

func ReturnCommitteeCheckForHeight(committeeCheckStash *CommitteeCheckStash, height uint32) []*CommitteeCheck

func ReturnCommitteeCheckForPosition 

func ReturnCommitteeCheckForPosition(committeeCheckStash *CommitteeCheckStash, position int) (committeeCheckHash [32]byte, committeeCheck *CommitteeCheck)

func (*CommitteeCheck) DecodeCommitteeCheck 

func (*CommitteeCheck) DecodeCommitteeCheck(encoded []byte) (ta *CommitteeCheck)

func (*CommitteeCheck) EncodeCommitteeCheck 

func (cc *CommitteeCheck) EncodeCommitteeCheck() []byte

func (*CommitteeCheck) HashCommitteCheck 

func (cc *CommitteeCheck) HashCommitteCheck() [32]byte

type CommitteeCheckStash 

type CommitteeCheckStash struct {
	M    map[KeyCheck]ValueCheck
	Keys []KeyCheck
}

func NewCommitteeCheckStash 

func NewCommitteeCheckStash() *CommitteeCheckStash

func (*CommitteeCheckStash) CommitteeCheckIncluded 

func (m *CommitteeCheckStash) CommitteeCheckIncluded(k KeyCheck) bool

func (*CommitteeCheckStash) DeleteFirstEntry 

func (m *CommitteeCheckStash) DeleteFirstEntry()

This function includes a key and tracks its order in the slice. No need to put the lock because it is used from the calling function

func (*CommitteeCheckStash) Set 

func (m *CommitteeCheckStash) Set(k KeyCheck, v ValueCheck)

This function includes a key and tracks its order in the slice

type CommitteeTx 

type CommitteeTx struct {
	Header       byte                         // 1 Byte
	Fee          uint64                       // 8 Byte
	IsCommittee  bool                         // 1 Byte
	Account      [64]byte                     // 64 Byte
	Issuer       [32]byte                     // 32 Byte
	Sig          [64]byte                     // 64 Byte
	CommitteeKey [crypto.COMM_KEY_LENGTH]byte // the modulus N of the RSA public key
}

func ConstrCommitteeTx 

func ConstrCommitteeTx(header byte, fee uint64, isCommittee bool, account [64]byte, signKey *ecdsa.PrivateKey, commPubKey *rsa.PublicKey) (tx *CommitteeTx, err error)

func (*CommitteeTx) Decode 

func (*CommitteeTx) Decode(encoded []byte) (tx *CommitteeTx)

func (*CommitteeTx) Encode 

func (tx *CommitteeTx) Encode() (encodedTx []byte)

func (*CommitteeTx) Hash 

func (tx *CommitteeTx) Hash() (hash [32]byte)

func (*CommitteeTx) Receiver 

func (tx *CommitteeTx) Receiver() [32]byte

func (*CommitteeTx) Sender 

func (tx *CommitteeTx) Sender() [32]byte

func (*CommitteeTx) Size 

func (tx *CommitteeTx) Size() uint64

func (CommitteeTx) String 

func (tx CommitteeTx) String() string

func (*CommitteeTx) TxFee 

func (tx *CommitteeTx) TxFee() uint64

type ConfigTx 

type ConfigTx struct {
	Header  byte
	Id      uint8
	Payload uint64
	Fee     uint64
	TxCnt   uint8
	Sig     [64]byte
}

func ConstrConfigTx 

func ConstrConfigTx(header byte, id uint8, payload uint64, fee uint64, txCnt uint8, rootPrivKey *ecdsa.PrivateKey) (tx *ConfigTx, err error)

func (*ConfigTx) Decode 

func (*ConfigTx) Decode(encodedTx []byte) (tx *ConfigTx)

func (*ConfigTx) Encode 

func (tx *ConfigTx) Encode() (encodedTx []byte)

func (*ConfigTx) Hash 

func (tx *ConfigTx) Hash() (hash [32]byte)

func (*ConfigTx) Receiver 

func (tx *ConfigTx) Receiver() [32]byte

func (*ConfigTx) Sender 

func (tx *ConfigTx) Sender() [32]byte

func (*ConfigTx) Size 

func (tx *ConfigTx) Size() uint64

func (ConfigTx) String 

func (tx ConfigTx) String() string

func (*ConfigTx) TxFee 

func (tx *ConfigTx) TxFee() uint64

type Context 

type Context struct {
	Account

	FundsTx
	// contains filtered or unexported fields
}

func NewContext 

func NewContext(account Account, fundsTx FundsTx) *Context

func (*Context) GetAddress 

func (c *Context) GetAddress() [64]byte

func (*Context) GetAmount 

func (c *Context) GetAmount() uint64

func (*Context) GetBalance 

func (c *Context) GetBalance() uint64

func (*Context) GetContract 

func (c *Context) GetContract() []byte

func (*Context) GetContractVariable 

func (c *Context) GetContractVariable(index int) ([]byte, error)

func (*Context) GetFee 

func (c *Context) GetFee() uint64

func (*Context) GetIssuer 

func (c *Context) GetIssuer() [32]byte

func (*Context) GetSender 

func (c *Context) GetSender() [32]byte

func (*Context) GetSig1 

func (c *Context) GetSig1() [64]byte

func (*Context) GetTransactionData 

func (c *Context) GetTransactionData() []byte

func (*Context) PersistChanges 

func (c *Context) PersistChanges()

func (*Context) SetContractVariable 

func (c *Context) SetContractVariable(index int, value []byte) error

type ContractTx 

type ContractTx struct {
	Header            byte
	Issuer            [64]byte
	Fee               uint64
	PubKey            [64]byte
	Sig               [64]byte
	Contract          []byte
	ContractVariables []ByteArray
}

func ConstrContractTx 

func ConstrContractTx(header byte, fee uint64, issuerSigKey *ecdsa.PrivateKey, contract []byte, contractVariables []ByteArray) (tx *ContractTx, newContractKey *ecdsa.PrivateKey, err error)

func (*ContractTx) Decode 

func (*ContractTx) Decode(encoded []byte) (tx *ContractTx)

func (*ContractTx) Encode 

func (tx *ContractTx) Encode() []byte

func (*ContractTx) Hash 

func (tx *ContractTx) Hash() [32]byte

func (*ContractTx) Size 

func (tx *ContractTx) Size() uint64

func (ContractTx) String 

func (tx ContractTx) String() string

func (*ContractTx) TxFee 

func (tx *ContractTx) TxFee() uint64

type DataSummary 

type DataSummary struct {
	Address [32]byte
	Data    [][]byte
}

Seperate data type to keep it more expandable Data summary data type stores information about all data that has been sent from a particular address

func NewDataSummary 

func NewDataSummary(address [32]byte) *DataSummary

func (*DataSummary) Decode 

func (*DataSummary) Decode(encoded []byte) (ds *DataSummary)

func (*DataSummary) Encode 

func (ds *DataSummary) Encode() []byte

func (*DataSummary) Hash 

func (ds *DataSummary) Hash() [32]byte

Address is the unique identifier of a data summary

func (DataSummary) String 

func (ds DataSummary) String() string

type DataTx 

type DataTx struct {
	Header    byte
	Fee       uint64
	TxCnt     uint32
	TimeStamp int64
	From      [32]byte
	To        [32]byte
	Sig1      [64]byte
	Sig2      [64]byte
	Data      []byte
}

func ConstrDataTx 

func ConstrDataTx(header byte, fee uint64, txCnt uint32, from, to [32]byte, sig1Key *ecdsa.PrivateKey, sig2Key *ecdsa.PrivateKey, data []byte) (tx *DataTx, err error)

func (*DataTx) Decode 

func (*DataTx) Decode(encodedTx []byte) *DataTx

func (*DataTx) Encode 

func (tx *DataTx) Encode() (encodedTx []byte)

when we serialize the struct with binary.Write, unexported field get serialized as well, undesired behavior. Therefore, writing own encoder/decoder

func (*DataTx) Hash 

func (tx *DataTx) Hash() (hash [32]byte)

func (*DataTx) Receiver 

func (tx *DataTx) Receiver() [32]byte

func (*DataTx) Sender 

func (tx *DataTx) Sender() [32]byte

func (*DataTx) Size 

func (tx *DataTx) Size() uint64

func (DataTx) String 

func (tx DataTx) String() string

func (*DataTx) TxFee 

func (tx *DataTx) TxFee() uint64

type EpochBlock 

type EpochBlock struct {
	//Header
	Header          byte
	Hash            [32]byte
	PrevShardHashes [][32]byte
	Height          uint32

	//Body
	Timestamp          int64
	MerkleRoot         [32]byte
	MerklePatriciaRoot [32]byte
	CommitmentProof    [crypto.COMM_PROOF_LENGTH]byte
	State              map[[32]byte]*Account
	ValMapping         *ValShardMapping
	CommitteeLeader    [32]byte //hash of the wallet of the chosen committee leader
	NofShards          int
	Beneficiary        [32]byte
}

func NewEpochBlock 

func NewEpochBlock(prevShardHashes [][32]byte, height uint32) *EpochBlock

func (*EpochBlock) Decode 

func (epochBlock *EpochBlock) Decode(encoded []byte) (b *EpochBlock)

func (*EpochBlock) Encode 

func (epochBlock *EpochBlock) Encode() []byte

func (*EpochBlock) EncodeHeader 

func (epochBlock *EpochBlock) EncodeHeader() []byte

func (*EpochBlock) HashEpochBlock 

func (epochBlock *EpochBlock) HashEpochBlock() [32]byte

func (EpochBlock) String 

func (epochBlock EpochBlock) String() string

func (EpochBlock) StringPrevHashes 

func (epochBlock EpochBlock) StringPrevHashes() (prevHashes string)

func (EpochBlock) StringState 

func (epochBlock EpochBlock) StringState() (state string)

type FineTx 

type FineTx struct {
	Header    byte
	Amount    uint64
	Fee       uint64
	From      [32]byte
	To        [32]byte
	Sig       [64]byte
	TimeStamp int64
}

func ConstrFineTx 

func ConstrFineTx(header byte, amount uint64, fee uint64, from [32]byte, to [32]byte, sigKey *ecdsa.PrivateKey) (tx *FineTx, err error)

func (*FineTx) Decode 

func (*FineTx) Decode(encodedTx []byte) *FineTx

func (*FineTx) Encode 

func (tx *FineTx) Encode() (encodedTx []byte)

when we serialize the struct with binary.Write, unexported field get serialized as well, undesired behavior. Therefore, writing own encoder/decoder

func (*FineTx) Hash 

func (tx *FineTx) Hash() (hash [32]byte)

func (*FineTx) Receiver 

func (tx *FineTx) Receiver() [32]byte

func (*FineTx) Sender 

func (tx *FineTx) Sender() [32]byte

func (*FineTx) Size 

func (tx *FineTx) Size() uint64

func (FineTx) String 

func (tx FineTx) String() string

func (*FineTx) TxFee 

func (tx *FineTx) TxFee() uint64

type FundsTx 

type FundsTx struct {
	Header    byte
	Amount    uint64
	Fee       uint64
	TxCnt     uint32
	TimeStamp int64
	From      [32]byte
	To        [32]byte
	Sig1      [64]byte
	Sig2      [64]byte
	//says if the fundsTx has been aggregated into an aggtx. This boolean isn't needed in the current version
	Aggregated bool
	Block      [32]byte //This saves the blockHashWithoutTransactions into which the transaction was usually validated. Needed for rollback.
	Data       []byte
}

func ConstrFundsTx 

func ConstrFundsTx(header byte, amount uint64, fee uint64, txCnt uint32, from, to [32]byte, sig1Key *ecdsa.PrivateKey, sig2Key *ecdsa.PrivateKey, data []byte) (tx *FundsTx, err error)

func (*FundsTx) Copy 

func (tx *FundsTx) Copy() (newTx *FundsTx)

func (*FundsTx) Decode 

func (*FundsTx) Decode(encodedTx []byte) *FundsTx

func (*FundsTx) Encode 

func (tx *FundsTx) Encode() (encodedTx []byte)

when we serialize the struct with binary.Write, unexported field get serialized as well, undesired behavior. Therefore, writing own encoder/decoder

func (*FundsTx) Hash 

func (tx *FundsTx) Hash() (hash [32]byte)

func (*FundsTx) Receiver 

func (tx *FundsTx) Receiver() [32]byte

func (*FundsTx) Sender 

func (tx *FundsTx) Sender() [32]byte

func (*FundsTx) Size 

func (tx *FundsTx) Size() uint64

func (FundsTx) String 

func (tx FundsTx) String() string

func (*FundsTx) TxFee 

func (tx *FundsTx) TxFee() uint64

type Genesis 

type Genesis struct {
	RootAddress           [64]byte
	RootCommitment        [crypto.COMM_KEY_LENGTH]byte
	FirstCommitteeAddress [64]byte
	FirstCommitteeKey     [crypto.COMM_KEY_LENGTH]byte
}

func NewGenesis 

func NewGenesis(rootAddress [64]byte,
	rootCommitment [crypto.COMM_KEY_LENGTH]byte,
	firstCommitteeAddress [64]byte,
	firstCommitteeKey [crypto.COMM_KEY_LENGTH]byte) Genesis

func (*Genesis) Decode 

func (*Genesis) Decode(encoded []byte) (acc *Genesis)

func (*Genesis) Encode 

func (genesis *Genesis) Encode() []byte

func (*Genesis) Hash 

func (genesis *Genesis) Hash() [32]byte

func (*Genesis) String 

func (genesis *Genesis) String() string

type KeyAssignment 

type KeyAssignment [32]byte // Key: Hash of the committee check

This datastructe maintains a map of the form int - *TransactionAssignment. It stores the committee checks received from other committee members. This datastructure will be queried at every blockheight to check if every one played according to the rules. Because we need to remove the first element of this datastructure and map access is random in Go, we additionally have a slice datastructure which keeps track of the order of the included transaction assignment. Such that, using the slice structure, we can remove the first received block once this stash gets full

type KeyBlock 

type KeyBlock [32]byte // Key: Hash of the block

This datastructe maintains a map of the form [32]byte - *Block. It stores the blcoks received from the shards. This datastructure will be queried after every epoch block to check if we can continue to the next epoch. Because we need to remove the first element of this datastructure and map access is random in Go, we additionally have a slice datastructure which keeps track of the order of the included state transition. Such that, using the slice structure, we can remove the first received block once this stash gets full

type KeyCheck 

type KeyCheck [32]byte // Key: Hash of the committee check

This datastructe maintains a map of the form [32]byte - *CommitteeCheck. It stores the committee checks received from other committee members. This datastructure will be queried at every blockheight to check if every one played according to the rules. Because we need to remove the first element of this datastructure and map access is random in Go, we additionally have a slice datastructure which keeps track of the order of the included commitee check. Such that, using the slice structure, we can remove the first received block once this stash gets full

type KeyState 

type KeyState [32]byte // Key: Hash of the block

This datastructe maintains a map of the form [32]byte - *StateTransition. It stores the state transitions received from other shards. This datastructure will be queried at every blockheight to check if we can continue mining the next block. Because we need to remove the first element of this datastructure and map access is random in Go, we additionally have a slice datastructure which keeps track of the order of the included state transition. Such that, using the slice structure, we can remove the first received block once this stash gets full

type MerkleTree 

type MerkleTree struct {
	Root *Node

	Leafs []*Node
	// contains filtered or unexported fields
}

MerkleTree is the container for the tree. It holds a pointer to the root of the tree, a list of pointers to the leaf nodes, and the merkle root.

func BuildAggTxMerkleTree 

func BuildAggTxMerkleTree(txHashes [][32]byte) *MerkleTree

func BuildMerkleTree 

func BuildMerkleTree(b *Block) *MerkleTree

func (*MerkleTree) MerkleRoot 

func (m *MerkleTree) MerkleRoot() [32]byte

MerkleRoot returns the unverified Merkle Root (hash of the root node) of the tree.

func (*MerkleTree) String 

func (m *MerkleTree) String() string

String returns a string representation of the tree. Only leaf nodes are included in the output.

func (*MerkleTree) VerifyTree 

func (m *MerkleTree) VerifyTree() bool

VerifyTree verify tree validates the hashes at each level of the tree and returns true if the resulting hash at the root of the tree matches the resulting root hash; returns false otherwise.

type Node 

type Node struct {
	Parent *Node
	Left   *Node
	Right  *Node

	Hash [32]byte
	// contains filtered or unexported fields
}

Node represents a node, root, or leaf in the tree. It stores pointers to its immediate relationships, a hash, the content stored if it is a leaf, and other metadata.

func GetIntermediate 

func GetIntermediate(leaf *Node) (intermediate []*Node, err error)

VerifyContent indicates whether a given content is in the tree and the hashes are valid for that content. Returns true if the expected Merkle Root is equivalent to the Merkle root calculated on the critical path for a given content. Returns true if valid and false otherwise.

func GetLeaf 

func GetLeaf(merkleTree *MerkleTree, leafHash [32]byte) *Node

type RelativeAccount 

type RelativeAccount struct {
	Address            [64]byte // 64 Byte
	Issuer             [32]byte // 32 Byte Changed to streamline
	Balance            int64    // 8 Byte
	TxCnt              int32    // 4 Byte
	IsStaking          bool     // 1 Byte
	IsCommittee        bool
	CommitmentKey      [crypto.COMM_KEY_LENGTH]byte // represents the modulus N of the RSA public key
	CommitteeKey       [crypto.COMM_KEY_LENGTH]byte // represents the modulus N of the RSA public key
	StakingBlockHeight int32                        // 4 Byte
	Contract           []byte                       // Arbitrary length
	ContractVariables  []ByteArray                  // Arbitrary length
}

* 

This datastructure keeps track of relative change in the account information during the creation of a block

func NewRelativeAccount 

func NewRelativeAccount(address [64]byte,
	issuer [32]byte,
	balance int64,
	isStaking bool,
	isCommittee bool,
	commitmentKey [crypto.COMM_KEY_LENGTH]byte,
	committeeKey [crypto.COMM_KEY_LENGTH]byte,
	contract []byte,
	contractVariables []ByteArray) RelativeAccount

func (*RelativeAccount) Decode 

func (*RelativeAccount) Decode(encoded []byte) (acc *RelativeAccount)

func (*RelativeAccount) Encode 

func (acc *RelativeAccount) Encode() []byte

func (*RelativeAccount) Hash 

func (acc *RelativeAccount) Hash() [32]byte

func (RelativeAccount) String 

func (acc RelativeAccount) String() string

type RelativeState 

type RelativeState struct {
	RelativeState map[[32]byte]*RelativeAccount
	ShardID       int
	//The beneficiary is the beneficiary of the block which was used as the basis to create this relative state
	Beneficiary [32]byte
}

This structure is very similar to the state transition. However, it only serves as a validation element. Therefore, it does not require a hash, serializer, deserializer or Commitment Proof.

func NewRelativeState 

func NewRelativeState(stateChange map[[32]byte]*RelativeAccount, shardid int, beneficiary [32]byte) *RelativeState

type StakeTx 

type StakeTx struct {
	Header        byte                         // 1 Byte
	Fee           uint64                       // 8 Byte
	IsStaking     bool                         // 1 Byte
	Account       [32]byte                     // 32 Byte
	Sig           [64]byte                     // 64 Byte
	CommitmentKey [crypto.COMM_KEY_LENGTH]byte // the modulus N of the RSA public key
}

func ConstrStakeTx 

func ConstrStakeTx(header byte, fee uint64, isStaking bool, account [32]byte, signKey *ecdsa.PrivateKey, commPubKey *rsa.PublicKey) (tx *StakeTx, err error)

func (*StakeTx) Decode 

func (*StakeTx) Decode(encodedTx []byte) (tx *StakeTx)

func (*StakeTx) Encode 

func (tx *StakeTx) Encode() (encodedTx []byte)

when we serialize the struct with binary.Write, unexported field get serialized as well, undesired behavior. Therefore, writing own encoder/decoder

func (*StakeTx) Hash 

func (tx *StakeTx) Hash() (hash [32]byte)

func (*StakeTx) Receiver 

func (tx *StakeTx) Receiver() [32]byte

func (*StakeTx) Sender 

func (tx *StakeTx) Sender() [32]byte

func (*StakeTx) Size 

func (tx *StakeTx) Size() uint64

func (StakeTx) String 

func (tx StakeTx) String() string

func (*StakeTx) TxFee 

func (tx *StakeTx) TxFee() uint64

type StateStash 

type StateStash struct {
	M    map[KeyState]ValueState
	Keys []KeyState
}

func NewStateStash 

func NewStateStash() *StateStash

func (*StateStash) DeleteFirstEntry 

func (m *StateStash) DeleteFirstEntry()

This function includes a key and tracks its order in the slice. No need to put the lock because it is used from the calling function

func (*StateStash) Set 

func (m *StateStash) Set(k KeyState, v ValueState)

This function includes a key and tracks its order in the slice

func (*StateStash) StateTransitionIncluded 

func (m *StateStash) StateTransitionIncluded(k KeyState) bool

type StateTransition 

type StateTransition struct {
	RelativeStateChange map[[32]byte]*RelativeAccount //changed to 32 Byte for streamlining
	Height              int
	ShardID             int
	CommitmentProof     [crypto.COMM_KEY_LENGTH]byte
}

* 

The State Transition is the main data type needed in the synchronisation mechnism. It contains all data needed to update the local
state with the state of the other shards and free the Mempool from already validated transactions.

func NewStateTransition 

func NewStateTransition(stateChange map[[32]byte]*RelativeAccount, height int, shardid int, commProof [crypto.COMM_KEY_LENGTH]byte) *StateTransition

func ReturnStateTransitionForHeight 

func ReturnStateTransitionForHeight(statestash *StateStash, height uint32) []*StateTransition

func ReturnStateTransitionForPosition 

func ReturnStateTransitionForPosition(stateStash *StateStash, position int) (stateHash [32]byte, stateTransition *StateTransition)

func (*StateTransition) DecodeTransition 

func (*StateTransition) DecodeTransition(encoded []byte) (st *StateTransition)

func (*StateTransition) EncodeTransition 

func (st *StateTransition) EncodeTransition() []byte

func (*StateTransition) HashTransition 

func (st *StateTransition) HashTransition() [32]byte

type Transaction 

type Transaction interface {
	Hash() [32]byte
	Encode() []byte
	//Decoding is not listed here, because it returns a different type for each tx (return value Transaction itself
	//is apparently not allowed)
	TxFee() uint64
	Size() uint64
	Sender() [32]byte
	Receiver() [32]byte
}

type TransactionAssignment 

type TransactionAssignment struct {
	Height         int
	ShardID        int
	CommitteeProof [crypto.COMM_PROOF_LENGTH]byte
	AccTxs         []*AccTx
	StakeTxs       []*StakeTx
	CommitteeTxs   []*CommitteeTx
	FundsTxs       []*FundsTx
	DataTxs        []*DataTx
	FineTxs        []*FineTx
}

func NewTransactionAssignment 

func NewTransactionAssignment(height int, shardid int, committeeProof [crypto.COMM_PROOF_LENGTH]byte, accTxs []*AccTx, stakeTxs []*StakeTx, committeeTxs []*CommitteeTx, fundsTxs []*FundsTx, dataTxs []*DataTx, fineTxs []*FineTx) *TransactionAssignment

func ReturnTransactionAssignmentForHeight 

func ReturnTransactionAssignmentForHeight(transactionAssignmentStash *TransactionAssignmentStash, height uint32) []*TransactionAssignment

func (*TransactionAssignment) DecodeTransactionAssignment 

func (*TransactionAssignment) DecodeTransactionAssignment(encoded []byte) (ta *TransactionAssignment)

func (*TransactionAssignment) EncodeTransactionAssignment 

func (ta *TransactionAssignment) EncodeTransactionAssignment() []byte

func (*TransactionAssignment) HashTransactionAssignment 

func (ta *TransactionAssignment) HashTransactionAssignment() [32]byte

type TransactionAssignmentStash 

type TransactionAssignmentStash struct {
	M    map[KeyAssignment]ValueAssignment
	Keys []KeyAssignment
}

func NewTransactionAssignmentStash 

func NewTransactionAssignmentStash() *TransactionAssignmentStash

func (*TransactionAssignmentStash) DeleteFirstEntry 

func (m *TransactionAssignmentStash) DeleteFirstEntry()

This function includes a key and tracks its order in the slice. No need to put the lock because it is used from the calling function

func (*TransactionAssignmentStash) Set 

func (m *TransactionAssignmentStash) Set(k KeyAssignment, v ValueAssignment)

This function includes a key and tracks its order in the slice

func (*TransactionAssignmentStash) TransactionAssignmentIncluded 

func (m *TransactionAssignmentStash) TransactionAssignmentIncluded(k KeyAssignment) bool

type ValShardMapping 

type ValShardMapping struct {
	//Header
	ValMapping  map[[64]byte]int
	EpochHeight int
}

func NewMapping 

func NewMapping() *ValShardMapping

func (*ValShardMapping) Decode 

func (valMapping *ValShardMapping) Decode(encoded []byte) (valMappingDecoded *ValShardMapping)

func (*ValShardMapping) Encode 

func (valMapping *ValShardMapping) Encode() []byte

func (*ValShardMapping) GetSize 

func (valMapping *ValShardMapping) GetSize() int

func (*ValShardMapping) HashMapping 

func (valMapping *ValShardMapping) HashMapping() [32]byte

func (ValShardMapping) String 

func (valMapping ValShardMapping) String() string

type ValueAssignment 

type ValueAssignment *TransactionAssignment // Value: Transaction Assignment

type ValueBlock 

type ValueBlock *Block // Value: Block

type ValueCheck 

type ValueCheck *CommitteeCheck // Value: CommitteeCheck

type ValueState 

type ValueState *StateTransition // Value: Block

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