golang crypto/md5包

---

md5包实现 MD5哈希算法
import "crypto/md5"
md5包实现了MD5哈希算法 参见RFC 1321
Constants常量
const BlockSize = 64//MD5字节块大小
const Size = 16//MD5校验和字节数
func Sum(data []byte) [Size]byte//返回数据data的MD5校验和

---

package main
import (
"fmt"
"crypto/md5"
)
func main() {
data := []byte("The fog is getting thicker!And Leon's getting laaarger!")
fmt.Printf("%x\n", md5.Sum(data)) //e2c569be17396eca2a2e3c11578123ed
}

---

func New() hash.Hash
返回一个新的使用MD5校验的hash.Hash接口
package main
import (
"fmt"
"crypto/md5"
"io"
)
func main() {
h := md5.New()
io.WriteString(h, "The fog is getting thicker!")
io.WriteString(h, "And Leon's getting laaarger!")
fmt.Printf("%x\n", h.Sum(nil)) //e2c569be17396eca2a2e3c11578123ed
}