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utils.go
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utils.go
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package core
import (
cryptoRand "crypto/rand"
"fmt"
"math/rand"
"github.com/cometbft/cometbft/crypto"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/prysmaticlabs/prysm/crypto/bls"
"sigs.k8s.io/yaml"
"github.com/bnb-chain/greenfield/sdk/keys"
gnfdtypes "github.com/bnb-chain/greenfield/types"
)
func GenRandomAddr() sdk.AccAddress {
// #nosec
return sdk.AccAddress(crypto.AddressHash([]byte(fmt.Sprintf("%d", rand.Int()))))
}
func GenRandomHexString(len int) string {
b := make([]byte, len)
// #nosec
_, err := cryptoRand.Read(b)
if err != nil {
panic(err)
}
return fmt.Sprintf("%x", b)
}
func GenRandomKeyManager() keys.KeyManager {
keyManager, err := keys.NewPrivateKeyManager(GenRandomHexString(32))
if err != nil {
panic(err)
}
return keyManager
}
func YamlString(data interface{}) string {
bz, err := yaml.Marshal(data)
if err != nil {
panic(err)
}
return string(bz)
}
// RandInt64 generate random int64 between min and max
func RandInt64(min, max int64) int64 {
return min + rand.Int63n(max-min)
}
func BlsSignAndVerify(sp *StorageProvider, signBz [32]byte) ([]byte, error) {
secondarySig, err := sp.BlsKey.Sign(signBz[:])
if err != nil {
return nil, err
}
pubKey, err := bls.PublicKeyFromBytes(sp.BlsKey.PubKey().Bytes())
if err != nil {
return nil, err
}
err = gnfdtypes.VerifyBlsSignature(pubKey, signBz, secondarySig)
if err != nil {
return nil, err
}
return secondarySig, nil
}
func BlsAggregateAndVerify(secondarySPBlsPubKeys []bls.PublicKey, signBz [32]byte, secondarySigs [][]byte) ([]byte, error) {
blsSigs, err := bls.MultipleSignaturesFromBytes(secondarySigs)
if err != nil {
return nil, err
}
aggBlsSig := bls.AggregateSignatures(blsSigs).Marshal()
err = gnfdtypes.VerifyBlsAggSignature(secondarySPBlsPubKeys, signBz, aggBlsSig)
if err != nil {
return nil, err
}
return aggBlsSig, nil
}