github.com/incognitochain/go-incognito-sdk@v1.0.1/privacy/curve25519/keccak.go (about)

     1  // Copyright 2017-2018 DERO Project. All rights reserved.
     2  // Use of this source code in any form is governed by RESEARCH license.
     3  // license can be found in the LICENSE file.
     4  // GPG: 0F39 E425 8C65 3947 702A  8234 08B2 0360 A03A 9DE8
     5  //
     6  //
     7  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
     8  // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     9  // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
    10  // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    11  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    12  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    13  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    14  // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
    15  // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    16  
    17  package curve25519
    18  
    19  import "github.com/ebfe/keccak"
    20  
    21  // quick keccak wrapper
    22  func Keccak256(data ...[]byte) (result Hash) {
    23  	h := keccak.New256()
    24  	for _, b := range data {
    25  		h.Write(b)
    26  	}
    27  	r := h.Sum(nil)
    28  	copy(result[:], r)
    29  	return
    30  }
    31  
    32  func Keccak512(data ...[]byte) (result Hash) {
    33  	h := keccak.New512()
    34  	for _, b := range data {
    35  		h.Write(b)
    36  	}
    37  	r := h.Sum(nil)
    38  	copy(result[:], r)
    39  	return
    40  }