cast.mx raw

   1  // Copyright 2024 The Go Authors. All rights reserved.
   2  // Use of this source code is governed by a BSD-style
   3  // license that can be found in the LICENSE file.
   4  
   5  package sha3
   6  
   7  import (
   8  	"bytes"
   9  	"crypto/internal/fips140"
  10  	"errors"
  11  )
  12  
  13  func init() {
  14  	fips140.CAST("cSHAKE128", func() error {
  15  		input := []byte{
  16  			0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
  17  			0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
  18  		}
  19  		want := []byte{
  20  			0xd2, 0x17, 0x37, 0x39, 0xf6, 0xa1, 0xe4, 0x6e,
  21  			0x81, 0xe5, 0x70, 0xe3, 0x1b, 0x10, 0x4c, 0x82,
  22  			0xc5, 0x48, 0xee, 0xe6, 0x09, 0xf5, 0x89, 0x52,
  23  			0x52, 0xa4, 0x69, 0xd4, 0xd0, 0x76, 0x68, 0x6b,
  24  		}
  25  		h := NewCShake128(input, input)
  26  		h.Write(input)
  27  		if got := h.Sum(nil); !bytes.Equal(got, want) {
  28  			return errors.New("unexpected result")
  29  		}
  30  		return nil
  31  	})
  32  }
  33