code.vegaprotocol.io/vega@v0.79.0/libs/crypto/hash.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  	"bytes"
    20  	"crypto/rand"
    21  	"encoding/hex"
    22  	"fmt"
    23  
    24  	"golang.org/x/crypto/sha3"
    25  )
    26  
    27  func Hash(key []byte) []byte {
    28  	hashFunc := sha3.New256()
    29  	hashFunc.Write(key)
    30  	return hashFunc.Sum(nil)
    31  }
    32  
    33  func HashBytesBuffer(key bytes.Buffer) []byte {
    34  	hashFunc := sha3.New256()
    35  	key.WriteTo(hashFunc)
    36  	return hashFunc.Sum(nil)
    37  }
    38  
    39  // HashToHex hash the input bytes and returns a hex encoded string of the result.
    40  func HashToHex(data []byte) string {
    41  	return hex.EncodeToString(Hash(data))
    42  }
    43  
    44  // HashStrToHex hash a string returns a hex encoded string of the result.
    45  func HashStrToHex(s string) string {
    46  	return hex.EncodeToString(Hash([]byte(s)))
    47  }
    48  
    49  func RandomHash() string {
    50  	data := make([]byte, 10)
    51  	if _, err := rand.Read(data); err != nil {
    52  		panic(fmt.Errorf("couldn't generate random string: %w", err))
    53  	}
    54  	return hex.EncodeToString(Hash(data))
    55  }