sha1

原文:https://pkg.go.dev/crypto/sha1@go1.23.0

Package sha1 implements the SHA-1 hash algorithm as defined in RFC 3174.

​ sha1 包实现了 RFC 3174 中定义的 SHA-1 哈希算法。

SHA-1 is cryptographically broken and should not be used for secure applications.

​ SHA-1 在密码学上已遭破解,不应将其用于安全应用程序。

常量

View Source

1
const BlockSize = 64

The blocksize of SHA-1 in bytes.

​ SHA-1 以字节为单位的块大小。

View Source

1
const Size = 20

The size of a SHA-1 checksum in bytes.

​ SHA-1 校验和的字节大小。

变量

This section is empty.

函数

func New

1
func New() hash.Hash

New returns a new hash.Hash computing the SHA1 checksum. The Hash also implements encoding.BinaryMarshaler and encoding.BinaryUnmarshaler to marshal and unmarshal the internal state of the hash.

​ New 返回一个新的哈希。Hash 计算 SHA1 校验和。Hash 还实现了 encoding.BinaryMarshaler 和 encoding.BinaryUnmarshaler 来编组和取消编组哈希的内部状态。

New Example

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
package main

import (
	"crypto/sha1"
	"fmt"
	"io"
)

func main() {
	h := sha1.New()
	io.WriteString(h, "His money is twice tainted:")
	io.WriteString(h, " 'taint yours and 'taint mine.")
	fmt.Printf("% x", h.Sum(nil))
}
Output:

59 7f 6a 54 00 10 f9 4c 15 d7 18 06 a9 9a 2c 87 10 e7 47 bd

New Example (File)

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
package main

import (
	"crypto/sha1"
	"fmt"
	"io"
	"log"
	"os"
)

func main() {
	f, err := os.Open("file.txt")
	if err != nil {
		log.Fatal(err)
	}
	defer f.Close()

	h := sha1.New()
	if _, err := io.Copy(h, f); err != nil {
		log.Fatal(err)
	}

	fmt.Printf("% x", h.Sum(nil))
}

Output:

2009/11/10 23:00:00 open file.txt: no such file or directory

func Sum <- go1.2

1
func Sum(data []byte) [Size]byte

Sum returns the SHA-1 checksum of the data.

​ Sum 返回数据的 SHA-1 校验和。

Sum Example

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
package main

import (
	"crypto/sha1"
	"fmt"
)

func main() {
	data := []byte("This page intentionally left blank.")
	fmt.Printf("% x", sha1.Sum(data))
}
Output:

af 06 49 23 bb f2 30 15 96 aa c4 c2 73 ba 32 17 8e bc 4a 96

类型

This section is empty.