code.vegaprotocol.io/vega@v0.79.0/libs/crypto/nonce.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package crypto
    17  
    18  import (
    19  	"crypto/rand"
    20  	"math/big"
    21  )
    22  
    23  func NewNonce() uint64 {
    24  	max := &big.Int{}
    25  	// set it to the max value of the uint64
    26  	max.SetUint64(^uint64(0))
    27  	nonce, _ := rand.Int(rand.Reader, max)
    28  	return nonce.Uint64()
    29  }