* crypto: add bls12-381 elliptic curve wrapper * params: add bls12-381 precompile gas parameters * core/vm: add bls12-381 precompiles * core/vm: add bls12-381 precompile tests * go.mod, go.sum: use latest bls12381 lib * core/vm: move point encode/decode functions to base library * crypto/bls12381: introduce bls12-381 library init function * crypto/bls12381: import bls12381 elliptic curve implementation * go.mod, go.sum: remove bls12-381 library * remove unsued frobenious coeffs supress warning for inp that used in asm * add mappings tests for zero inputs fix swu g2 minus z inverse constant * crypto/bls12381: fix typo * crypto/bls12381: better comments for bls12381 constants * crypto/bls12381: swu, use single conditional for e2 * crypto/bls12381: utils, delete empty line * crypto/bls12381: utils, use FromHex for string to big * crypto/bls12381: g1, g2, strict length check for FromBytes * crypto/bls12381: field_element, comparision changes * crypto/bls12381: change swu, isogeny constants with hex values * core/vm: fix point multiplication comments * core/vm: fix multiexp gas calculation and lookup for g1 and g2 * core/vm: simpler imput length check for multiexp and pairing precompiles * core/vm: rm empty multiexp result declarations * crypto/bls12381: remove modulus type definition * crypto/bls12381: use proper init function * crypto/bls12381: get rid of new lines at fatal desciprtions * crypto/bls12-381: fix no-adx assembly multiplication * crypto/bls12-381: remove old config function * crypto/bls12381: update multiplication backend this commit changes mul backend to 6limb eip1962 backend mul assign operations are dropped * core/vm/contracts_tests: externalize test vectors for precompiles * core/vm/contracts_test: externalize failure-cases for precompiles * core/vm: linting * go.mod: tiny up sum file * core/vm: fix goimports linter issues * crypto/bls12381: build tags for plain ASM or ADX implementation Co-authored-by: Martin Holst Swende <martin@swende.se> Co-authored-by: Péter Szilágyi <peterke@gmail.com>
		
			
				
	
	
		
			153 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			153 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package params
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import "math/big"
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const (
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	GasLimitBoundDivisor uint64 = 1024    // The bound divisor of the gas limit, used in update calculations.
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	MinGasLimit          uint64 = 5000    // Minimum the gas limit may ever be.
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	GenesisGasLimit      uint64 = 4712388 // Gas limit of the Genesis block.
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	MaximumExtraDataSize  uint64 = 32    // Maximum size extra data may be after Genesis.
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	ExpByteGas            uint64 = 10    // Times ceil(log256(exponent)) for the EXP instruction.
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	SloadGas              uint64 = 50    // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.
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	CallValueTransferGas  uint64 = 9000  // Paid for CALL when the value transfer is non-zero.
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	CallNewAccountGas     uint64 = 25000 // Paid for CALL when the destination address didn't exist prior.
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	TxGas                 uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions.
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	TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions.
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	TxDataZeroGas         uint64 = 4     // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions.
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	QuadCoeffDiv          uint64 = 512   // Divisor for the quadratic particle of the memory cost equation.
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	LogDataGas            uint64 = 8     // Per byte in a LOG* operation's data.
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	CallStipend           uint64 = 2300  // Free gas given at beginning of call.
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	Sha3Gas     uint64 = 30 // Once per SHA3 operation.
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	Sha3WordGas uint64 = 6  // Once per word of the SHA3 operation's data.
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	SstoreSetGas    uint64 = 20000 // Once per SLOAD operation.
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	SstoreResetGas  uint64 = 5000  // Once per SSTORE operation if the zeroness changes from zero.
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	SstoreClearGas  uint64 = 5000  // Once per SSTORE operation if the zeroness doesn't change.
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	SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero.
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	NetSstoreNoopGas  uint64 = 200   // Once per SSTORE operation if the value doesn't change.
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	NetSstoreInitGas  uint64 = 20000 // Once per SSTORE operation from clean zero.
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	NetSstoreCleanGas uint64 = 5000  // Once per SSTORE operation from clean non-zero.
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	NetSstoreDirtyGas uint64 = 200   // Once per SSTORE operation from dirty.
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	NetSstoreClearRefund      uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
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	NetSstoreResetRefund      uint64 = 4800  // Once per SSTORE operation for resetting to the original non-zero value
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	NetSstoreResetClearRefund uint64 = 19800 // Once per SSTORE operation for resetting to the original zero value
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	SstoreSentryGasEIP2200   uint64 = 2300  // Minimum gas required to be present for an SSTORE call, not consumed
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	SstoreNoopGasEIP2200     uint64 = 800   // Once per SSTORE operation if the value doesn't change.
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	SstoreDirtyGasEIP2200    uint64 = 800   // Once per SSTORE operation if a dirty value is changed.
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	SstoreInitGasEIP2200     uint64 = 20000 // Once per SSTORE operation from clean zero to non-zero
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	SstoreInitRefundEIP2200  uint64 = 19200 // Once per SSTORE operation for resetting to the original zero value
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	SstoreCleanGasEIP2200    uint64 = 5000  // Once per SSTORE operation from clean non-zero to something else
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	SstoreCleanRefundEIP2200 uint64 = 4200  // Once per SSTORE operation for resetting to the original non-zero value
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	SstoreClearRefundEIP2200 uint64 = 15000 // Once per SSTORE operation for clearing an originally existing storage slot
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	JumpdestGas   uint64 = 1     // Once per JUMPDEST operation.
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	EpochDuration uint64 = 30000 // Duration between proof-of-work epochs.
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	CreateDataGas            uint64 = 200   //
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	CallCreateDepth          uint64 = 1024  // Maximum depth of call/create stack.
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	ExpGas                   uint64 = 10    // Once per EXP instruction
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	LogGas                   uint64 = 375   // Per LOG* operation.
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	CopyGas                  uint64 = 3     //
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	StackLimit               uint64 = 1024  // Maximum size of VM stack allowed.
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	TierStepGas              uint64 = 0     // Once per operation, for a selection of them.
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	LogTopicGas              uint64 = 375   // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas.
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	CreateGas                uint64 = 32000 // Once per CREATE operation & contract-creation transaction.
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	Create2Gas               uint64 = 32000 // Once per CREATE2 operation
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	SelfdestructRefundGas    uint64 = 24000 // Refunded following a selfdestruct operation.
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	MemoryGas                uint64 = 3     // Times the address of the (highest referenced byte in memory + 1). NOTE: referencing happens on read, write and in instructions such as RETURN and CALL.
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	TxDataNonZeroGasFrontier uint64 = 68    // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions.
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	TxDataNonZeroGasEIP2028  uint64 = 16    // Per byte of non zero data attached to a transaction after EIP 2028 (part in Istanbul)
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	// These have been changed during the course of the chain
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	CallGasFrontier              uint64 = 40  // Once per CALL operation & message call transaction.
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	CallGasEIP150                uint64 = 700 // Static portion of gas for CALL-derivates after EIP 150 (Tangerine)
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	BalanceGasFrontier           uint64 = 20  // The cost of a BALANCE operation
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	BalanceGasEIP150             uint64 = 400 // The cost of a BALANCE operation after Tangerine
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	BalanceGasEIP1884            uint64 = 700 // The cost of a BALANCE operation after EIP 1884 (part of Istanbul)
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	ExtcodeSizeGasFrontier       uint64 = 20  // Cost of EXTCODESIZE before EIP 150 (Tangerine)
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	ExtcodeSizeGasEIP150         uint64 = 700 // Cost of EXTCODESIZE after EIP 150 (Tangerine)
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	SloadGasFrontier             uint64 = 50
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	SloadGasEIP150               uint64 = 200
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	SloadGasEIP1884              uint64 = 800  // Cost of SLOAD after EIP 1884 (part of Istanbul)
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	SloadGasEIP2200              uint64 = 800  // Cost of SLOAD after EIP 2200 (part of Istanbul)
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	ExtcodeHashGasConstantinople uint64 = 400  // Cost of EXTCODEHASH (introduced in Constantinople)
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	ExtcodeHashGasEIP1884        uint64 = 700  // Cost of EXTCODEHASH after EIP 1884 (part in Istanbul)
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	SelfdestructGasEIP150        uint64 = 5000 // Cost of SELFDESTRUCT post EIP 150 (Tangerine)
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	// EXP has a dynamic portion depending on the size of the exponent
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	ExpByteFrontier uint64 = 10 // was set to 10 in Frontier
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	ExpByteEIP158   uint64 = 50 // was raised to 50 during Eip158 (Spurious Dragon)
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	// Extcodecopy has a dynamic AND a static cost. This represents only the
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	// static portion of the gas. It was changed during EIP 150 (Tangerine)
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	ExtcodeCopyBaseFrontier uint64 = 20
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	ExtcodeCopyBaseEIP150   uint64 = 700
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	// CreateBySelfdestructGas is used when the refunded account is one that does
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	// not exist. This logic is similar to call.
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	// Introduced in Tangerine Whistle (Eip 150)
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	CreateBySelfdestructGas uint64 = 25000
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	MaxCodeSize = 24576 // Maximum bytecode to permit for a contract
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	// Precompiled contract gas prices
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	EcrecoverGas        uint64 = 3000 // Elliptic curve sender recovery gas price
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	Sha256BaseGas       uint64 = 60   // Base price for a SHA256 operation
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	Sha256PerWordGas    uint64 = 12   // Per-word price for a SHA256 operation
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	Ripemd160BaseGas    uint64 = 600  // Base price for a RIPEMD160 operation
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	Ripemd160PerWordGas uint64 = 120  // Per-word price for a RIPEMD160 operation
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	IdentityBaseGas     uint64 = 15   // Base price for a data copy operation
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	IdentityPerWordGas  uint64 = 3    // Per-work price for a data copy operation
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	ModExpQuadCoeffDiv  uint64 = 20   // Divisor for the quadratic particle of the big int modular exponentiation
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	Bn256AddGasByzantium             uint64 = 500    // Byzantium gas needed for an elliptic curve addition
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	Bn256AddGasIstanbul              uint64 = 150    // Gas needed for an elliptic curve addition
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	Bn256ScalarMulGasByzantium       uint64 = 40000  // Byzantium gas needed for an elliptic curve scalar multiplication
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	Bn256ScalarMulGasIstanbul        uint64 = 6000   // Gas needed for an elliptic curve scalar multiplication
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	Bn256PairingBaseGasByzantium     uint64 = 100000 // Byzantium base price for an elliptic curve pairing check
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	Bn256PairingBaseGasIstanbul      uint64 = 45000  // Base price for an elliptic curve pairing check
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	Bn256PairingPerPointGasByzantium uint64 = 80000  // Byzantium per-point price for an elliptic curve pairing check
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	Bn256PairingPerPointGasIstanbul  uint64 = 34000  // Per-point price for an elliptic curve pairing check
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	Bls12381G1AddGas          uint64 = 600    // Price for BLS12-381 elliptic curve G1 point addition
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	Bls12381G1MulGas          uint64 = 12000  // Price for BLS12-381 elliptic curve G1 point scalar multiplication
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	Bls12381G2AddGas          uint64 = 4500   // Price for BLS12-381 elliptic curve G2 point addition
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	Bls12381G2MulGas          uint64 = 55000  // Price for BLS12-381 elliptic curve G2 point scalar multiplication
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	Bls12381PairingBaseGas    uint64 = 115000 // Base gas price for BLS12-381 elliptic curve pairing check
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	Bls12381PairingPerPairGas uint64 = 23000  // Per-point pair gas price for BLS12-381 elliptic curve pairing check
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	Bls12381MapG1Gas          uint64 = 5500   // Gas price for BLS12-381 mapping field element to G1 operation
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	Bls12381MapG2Gas          uint64 = 110000 // Gas price for BLS12-381 mapping field element to G2 operation
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)
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// Gas discount table for BLS12-381 G1 and G2 multi exponentiation operations
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var Bls12381MultiExpDiscountTable = [128]uint64{1200, 888, 764, 641, 594, 547, 500, 453, 438, 423, 408, 394, 379, 364, 349, 334, 330, 326, 322, 318, 314, 310, 306, 302, 298, 294, 289, 285, 281, 277, 273, 269, 268, 266, 265, 263, 262, 260, 259, 257, 256, 254, 253, 251, 250, 248, 247, 245, 244, 242, 241, 239, 238, 236, 235, 233, 232, 231, 229, 228, 226, 225, 223, 222, 221, 220, 219, 219, 218, 217, 216, 216, 215, 214, 213, 213, 212, 211, 211, 210, 209, 208, 208, 207, 206, 205, 205, 204, 203, 202, 202, 201, 200, 199, 199, 198, 197, 196, 196, 195, 194, 193, 193, 192, 191, 191, 190, 189, 188, 188, 187, 186, 185, 185, 184, 183, 182, 182, 181, 180, 179, 179, 178, 177, 176, 176, 175, 174}
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var (
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	DifficultyBoundDivisor = big.NewInt(2048)   // The bound divisor of the difficulty, used in the update calculations.
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	GenesisDifficulty      = big.NewInt(131072) // Difficulty of the Genesis block.
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	MinimumDifficulty      = big.NewInt(131072) // The minimum that the difficulty may ever be.
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	DurationLimit          = big.NewInt(13)     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
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)
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