Official Go implementation of the Ethereum protocol
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core/vm, crypto/bls12381, params: add bls12-381 elliptic curve precompiles (#21018)
* 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>
5 years ago
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package bls12381
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import (
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"crypto/rand"
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"math/big"
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)
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var fuz int = 10
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func randScalar(max *big.Int) *big.Int {
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a, _ := rand.Int(rand.Reader, max)
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return a
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}
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