example_test.go

Documentation: crypto/sha1

		 1  // Copyright 2009 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 sha1_test
		 6  
		 7  import (
		 8  	"crypto/sha1"
		 9  	"fmt"
		10  	"io"
		11  	"log"
		12  	"os"
		13  )
		14  
		15  func ExampleNew() {
		16  	h := sha1.New()
		17  	io.WriteString(h, "His money is twice tainted:")
		18  	io.WriteString(h, " 'taint yours and 'taint mine.")
		19  	fmt.Printf("% x", h.Sum(nil))
		20  	// Output: 59 7f 6a 54 00 10 f9 4c 15 d7 18 06 a9 9a 2c 87 10 e7 47 bd
		21  }
		22  
		23  func ExampleSum() {
		24  	data := []byte("This page intentionally left blank.")
		25  	fmt.Printf("% x", sha1.Sum(data))
		26  	// Output: af 06 49 23 bb f2 30 15 96 aa c4 c2 73 ba 32 17 8e bc 4a 96
		27  }
		28  
		29  func ExampleNew_file() {
		30  	f, err := os.Open("file.txt")
		31  	if err != nil {
		32  		log.Fatal(err)
		33  	}
		34  	defer f.Close()
		35  
		36  	h := sha1.New()
		37  	if _, err := io.Copy(h, f); err != nil {
		38  		log.Fatal(err)
		39  	}
		40  
		41  	fmt.Printf("% x", h.Sum(nil))
		42  }
		43
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