Golang 解密数组 Byte Xtea ECB 算法

Question

我有一个输入字节数组：

60614e680e705d0fefcf7ac8102c4452

ecb0c85768f2f2dc52415c43a36712f0

31c9037dafd31f01ecb0c85768f2f2dc

7b00be7e5a15fee1e78c63c58c2c6861

fef9a1c4130a354c846448512e6a97ce

4a9005690d1e3808f065c957538e1bac

87e7228322ab39a6900146786840dc0b

c536ad6afb6e4e3267fb045dd9c7e670

f1c2d2ac1fcc71ad06b7b194de4031f4

046744610aafa7b92fd3f392c3a5eeb1

474ffa60c0587e68ecb0c85768f2f2dc

2a88827461b41c99b2539b6bfdcd4325

be3ced59be7b594addb3366e076f6e47

0cc41df1eb3a8d93c99eb7bdad5a474c

33659653762910d0ecb0c85768f2f2dc

ecb0c85768f2f2dc82e715e7952a79c4

660074ccc50741cab5eabb873ae706b4

c8b008128df0af80fece91741fc5f641

1145aab35ac9f6e0f8a937baed012d00

c3be705a5e8c3440ddc1cd4e0051cccc

它们被加密的算法 XTEA ECB。我尝试使用该库进行解密“golang.org/x/crypto/xtea”。

package main

import (

    "golang.org/x/crypto/xtea"

    "fmt"

)

func main() {

    // encripte data

    test :=[]byte{

            0x60, 0x61, 0x4e, 0x68, 0x0e, 0x70, 0x5d, 0x0f, 0xef, 0xcf, 0x7a, 0xc8, 0x10, 0x2c, 0x44, 0x52,

            0xec, 0xb0, 0xc8, 0x57, 0x68, 0xf2, 0xf2, 0xdc, 0x52, 0x41, 0x5c, 0x43, 0xa3, 0x67, 0x12, 0xf0,

            0x31, 0xc9, 0x03, 0x7d, 0xaf, 0xd3, 0x1f, 0x01, 0xec, 0xb0, 0xc8, 0x57, 0x68, 0xf2, 0xf2, 0xdc,

            0x7b, 0x00, 0xbe, 0x7e, 0x5a, 0x15, 0xfe, 0xe1, 0xe7, 0x8c, 0x63, 0xc5, 0x8c, 0x2c, 0x68, 0x61,

            0xfe, 0xf9, 0xa1, 0xc4, 0x13, 0x0a, 0x35, 0x4c, 0x84, 0x64, 0x48, 0x51, 0x2e, 0x6a, 0x97, 0xce,

            0x4a, 0x90, 0x05, 0x69, 0x0d, 0x1e, 0x38, 0x08, 0xf0, 0x65, 0xc9, 0x57, 0x53, 0x8e, 0x1b, 0xac,

            }

    // key

    key := []byte("yuyuyuyuopopopop")

    c, _ := xtea.NewCipher(key)

    myout := make([]byte, len(test))

    // decrypte

    c.Decrypt(myout, test)

    fmt.Println(myout)

}

我的结果与应有的结果不一致。也许我没有正确使用图书馆？还是数据类型有问题？我是golang的新手。

Answer 1

也许有人会派上用场。库“golang.org/x/crypto/xtea”由于其不安全性，不包含带有 ECB 模型的 XTEA 算法，因此我编写了自己的版本：package mainimport (&nbsp; &nbsp; "fmt"&nbsp; &nbsp; "encoding/hex"&nbsp; &nbsp; "encoding/binary")func main() {&nbsp; &nbsp; original := []byte{&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x60, 0x61, 0x4e, 0x68, 0x0e, 0x70, 0x5d, 0x0f, 0xef, 0xcf, 0x7a, 0xc8, 0x10, 0x2c, 0x44, 0x52,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xec, 0xb0, 0xc8, 0x57, 0x68, 0xf2, 0xf2, 0xdc, 0x52, 0x41, 0x5c, 0x43, 0xa3, 0x67, 0x12, 0xf0,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x31, 0xc9, 0x03, 0x7d, 0xaf, 0xd3, 0x1f, 0x01, 0xec, 0xb0, 0xc8, 0x57, 0x68, 0xf2, 0xf2, 0xdc,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x7b, 0x00, 0xbe, 0x7e, 0x5a, 0x15, 0xfe, 0xe1, 0xe7, 0x8c, 0x63, 0xc5, 0x8c, 0x2c, 0x68, 0x61,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xfe, 0xf9, 0xa1, 0xc4, 0x13, 0x0a, 0x35, 0x4c, 0x84, 0x64, 0x48, 0x51, 0x2e, 0x6a, 0x97, 0xce,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x4a, 0x90, 0x05, 0x69, 0x0d, 0x1e, 0x38, 0x08, 0xf0, 0x65, 0xc9, 0x57, 0x53, 0x8e, 0x1b, 0xac,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x87, 0xe7, 0x22, 0x83, 0x22, 0xab, 0x39, 0xa6, 0x90, 0x01, 0x46, 0x78, 0x68, 0x40, 0xdc, 0x0b,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xc5, 0x36, 0xad, 0x6a, 0xfb, 0x6e, 0x4e, 0x32, 0x67, 0xfb, 0x04, 0x5d, 0xd9, 0xc7, 0xe6, 0x70,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xf1, 0xc2, 0xd2, 0xac, 0x1f, 0xcc, 0x71, 0xad, 0x06, 0xb7, 0xb1, 0x94, 0xde, 0x40, 0x31, 0xf4,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x04, 0x67, 0x44, 0x61, 0x0a, 0xaf, 0xa7, 0xb9, 0x2f, 0xd3, 0xf3, 0x92, 0xc3, 0xa5, 0xee, 0xb1,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x47, 0x4f, 0xfa, 0x60, 0xc0, 0x58, 0x7e, 0x68, 0xec, 0xb0, 0xc8, 0x57, 0x68, 0xf2, 0xf2, 0xdc,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x2a, 0x88, 0x82, 0x74, 0x61, 0xb4, 0x1c, 0x99, 0xb2, 0x53, 0x9b, 0x6b, 0xfd, 0xcd, 0x43, 0x25,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xbe, 0x3c, 0xed, 0x59, 0xbe, 0x7b, 0x59, 0x4a, 0xdd, 0xb3, 0x36, 0x6e, 0x07, 0x6f, 0x6e, 0x47,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x0c, 0xc4, 0x1d, 0xf1, 0xeb, 0x3a, 0x8d, 0x93, 0xc9, 0x9e, 0xb7, 0xbd, 0xad, 0x5a, 0x47, 0x4c,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x33, 0x65, 0x96, 0x53, 0x76, 0x29, 0x10, 0xd0, 0xec, 0xb0, 0xc8, 0x57, 0x68, 0xf2, 0xf2, 0xdc,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xec, 0xb0, 0xc8, 0x57, 0x68, 0xf2, 0xf2, 0xdc, 0x82, 0xe7, 0x15, 0xe7, 0x95, 0x2a, 0x79, 0xc4,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x66, 0x00, 0x74, 0xcc, 0xc5, 0x07, 0x41, 0xca, 0xb5, 0xea, 0xbb, 0x87, 0x3a, 0xe7, 0x06, 0xb4,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xc8, 0xb0, 0x08, 0x12, 0x8d, 0xf0, 0xaf, 0x80, 0xfe, 0xce, 0x91, 0x74, 0x1f, 0xc5, 0xf6, 0x41,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0x11, 0x45, 0xaa, 0xb3, 0x5a, 0xc9, 0xf6, 0xe0, 0xf8, 0xa9, 0x37, 0xba, 0xed, 0x01, 0x2d, 0x00,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 0xc3, 0xbe, 0x70, 0x5a, 0x5e, 0x8c, 0x34, 0x40, 0xdd, 0xc1, 0xcd, 0x4e, 0x00, 0x51, 0xcc, 0xcc}&nbsp; &nbsp; testKey := []byte("yuyuyuyuopopopop")&nbsp; &nbsp; block := make([]byte, 8)&nbsp; &nbsp; for i := 0; i< len(original)/8; i++ {&nbsp; &nbsp; &nbsp; &nbsp; block = decrypt(testKey , original[(i*8):((i+1)*8)], 32)&nbsp; &nbsp; &nbsp; &nbsp; fmt.Println(hex.Dump(block))&nbsp; &nbsp; }}func decrypt(key []byte, block []byte, rounds uint32) ([]byte){&nbsp; &nbsp; var k [4]uint32&nbsp; &nbsp; var i uint32&nbsp; &nbsp; end := make([]byte, 8)&nbsp; &nbsp; v0 := binary.LittleEndian.Uint32(block[:4])&nbsp; &nbsp; v1 := binary.LittleEndian.Uint32(block[4:])&nbsp; &nbsp; k[0] = binary.LittleEndian.Uint32(key[:4])&nbsp; &nbsp; k[1] = binary.LittleEndian.Uint32(key[4:8])&nbsp; &nbsp; k[2] = binary.LittleEndian.Uint32(key[8:12])&nbsp; &nbsp; k[3] = binary.LittleEndian.Uint32(key[12:])&nbsp; &nbsp; delta := binary.LittleEndian.Uint32([]byte{0xb9, 0x79, 0x37, 0x9e})&nbsp; &nbsp; mask := binary.LittleEndian.Uint32([]byte{0xff, 0xff, 0xff, 0xff})&nbsp; &nbsp; sum := (delta * rounds) & mask&nbsp; &nbsp; for i=0; i<rounds; i++ {&nbsp; &nbsp; &nbsp; &nbsp; v1 = (v1 - (((v0<<4 ^ v0>>5) + v0) ^ (sum + k[sum>>11 & 3]))) & mask&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; sum = (sum - delta) & mask&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; v0 = (v0 - (((v1<<4 ^ v1>>5) + v1) ^ (sum + k[sum & 3]))) & mask&nbsp; &nbsp; }&nbsp; &nbsp; binary.LittleEndian.PutUint32(end[:4], v0)&nbsp; &nbsp; binary.LittleEndian.PutUint32(end[4:], v1)&nbsp; &nbsp; return end}