Golang 实现的加密算法

//import "crypto/sha256"

h := sha256.New()
io.WriteString(h, "His moed: 'taint yours and 'taint mine.")
fmt.Printf("% x", h.Sum(nil))

//import "crypto/sha1"

h := sha1.New()
io.WriteString(h, "Hisainted: 'taint yours and 'taint mine.")
fmt.Printf("% x", h.Sum(nil))

//import "crypto/md5"

h := md5.New()
io.WriteString(h, "需要加密的密码")
fmt.Printf("%x", h.Sum(nil))

scrypt方案

http://code.google.com/p/go/source/browse?repo=crypto#hg%2Fscrypt

dk := scrypt.Key([]byte("some password"), []byte(salt), 16384, 8, 1, 32)

base64加解密

func base64Encode(src []byte) []byte {
     return []byte(base64.StdEncoding.EncodeToString(src))
 }
 func base64Decode(src []byte) ([]byte, error) {
     return base64.StdEncoding.DecodeString(string(src))
 }

crypto里面支持对称加密的高级加解密

var commonIV = []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}
 func main() {
     //需要去加密的字符串
     plaintext := []byte("My name is Astaxie")
     //如果传入加密串的话，plaint就是传入的字符串
     if len(os.Args) > 1 {
         plaintext = []byte(os.Args[1])
     }
//aes的加密字符串
key_text := "astaxie12798akljzmknm.ahkjkljl;k" 
if len(os.Args) > 2 {     
  key_text = os.Args[2] 
} 
fmt.Println(len(key_text)) 
// 创建加密算法aes 
c, err := aes.NewCipher([]byte(key_text)) 
if err != nil {    
  fmt.Printf("Error: NewCipher(%d bytes) = %s", len(key_text), err)
 os.Exit(-1) 
} 
//加密字符串 
cfb := cipher.NewCFBEncrypter(c, commonIV) 
ciphertext := make([]byte, len(plaintext)) 
cfb.XORKeyStream(ciphertext, plaintext) 
fmt.Printf("%s=>%x\n", plaintext, ciphertext)

// 解密字符串 
cfbdec := cipher.NewCFBDecrypter(c, commonIV) 
plaintextCopy := make([]byte, len(plaintext)) cfbdec.XORKeyStream(plaintextCopy, ciphertext) 
fmt.Printf("%x=>%s\n", ciphertext, plaintextCopy)
 }