Java 如何输出DES中每一轮的E函数、XOR进程和F进程？
//初始置换表Java 如何输出DES中每一轮的E函数、XOR进程和F进程？,java,encryption,cryptography,output,des,Java,Encryption,Cryptography,Output,Des,//初始置换表 import java.util.*; class Main { private static class DES { // CONSTANTS int[] IP = { 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62, 54, 46, 38,
import java.util.*;
class Main {
private static class DES {
// CONSTANTS
int[] IP = { 58, 50, 42, 34, 26, 18,
10, 2, 60, 52, 44, 36, 28, 20,
12, 4, 62, 54, 46, 38,
30, 22, 14, 6, 64, 56,
48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17,
9, 1, 59, 51, 43, 35, 27,
19, 11, 3, 61, 53, 45,
37, 29, 21, 13, 5, 63, 55,
47, 39, 31, 23, 15, 7 };
int[] IP1 = { 40, 8, 48, 16, 56, 24, 64,
32, 39, 7, 47, 15, 55,
23, 63, 31, 38, 6, 46,
14, 54, 22, 62, 30, 37,
5, 45, 13, 53, 21, 61,
29, 36, 4, 44, 12, 52,
20, 60, 28, 35, 3, 43,
11, 51, 19, 59, 27, 34,
2, 42, 10, 50, 18, 58,
26, 33, 1, 41, 9, 49,
17, 57, 25 };
int[] PC1 = { 57, 49, 41, 33, 25,
17, 9, 1, 58, 50, 42, 34, 26,
18, 10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36, 63,
55, 47, 39, 31, 23, 15, 7, 62,
54, 46, 38, 30, 22, 14, 6, 61,
53, 45, 37, 29, 21, 13, 5, 28,
20, 12, 4 };
int[] EP = { 32, 1, 2, 3, 4, 5, 4,
5, 6, 7, 8, 9, 8, 9, 10,
11, 12, 13, 12, 13, 14, 15,
16, 17, 16, 17, 18, 19, 20,
21, 20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29, 28,
29, 30, 31, 32, 1 };
import java.util.*;
class Main {
private static class DES {
// CONSTANTS
int[] IP = { 58, 50, 42, 34, 26, 18,
10, 2, 60, 52, 44, 36, 28, 20,
12, 4, 62, 54, 46, 38,
30, 22, 14, 6, 64, 56,
48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17,
9, 1, 59, 51, 43, 35, 27,
19, 11, 3, 61, 53, 45,
37, 29, 21, 13, 5, 63, 55,
47, 39, 31, 23, 15, 7 };
int[] IP1 = { 40, 8, 48, 16, 56, 24, 64,
32, 39, 7, 47, 15, 55,
23, 63, 31, 38, 6, 46,
14, 54, 22, 62, 30, 37,
5, 45, 13, 53, 21, 61,
29, 36, 4, 44, 12, 52,
20, 60, 28, 35, 3, 43,
11, 51, 19, 59, 27, 34,
2, 42, 10, 50, 18, 58,
26, 33, 1, 41, 9, 49,
17, 57, 25 };
int[] PC1 = { 57, 49, 41, 33, 25,
17, 9, 1, 58, 50, 42, 34, 26,
18, 10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36, 63,
55, 47, 39, 31, 23, 15, 7, 62,
54, 46, 38, 30, 22, 14, 6, 61,
53, 45, 37, 29, 21, 13, 5, 28,
20, 12, 4 };
int[] EP = { 32, 1, 2, 3, 4, 5, 4,
5, 6, 7, 8, 9, 8, 9, 10,
11, 12, 13, 12, 13, 14, 15,
16, 17, 16, 17, 18, 19, 20,
21, 20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29, 28,
29, 30, 31, 32, 1 };
import java.util.*;
class Main {
private static class DES {
// CONSTANTS
int[] IP = { 58, 50, 42, 34, 26, 18,
10, 2, 60, 52, 44, 36, 28, 20,
12, 4, 62, 54, 46, 38,
30, 22, 14, 6, 64, 56,
48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17,
9, 1, 59, 51, 43, 35, 27,
19, 11, 3, 61, 53, 45,
37, 29, 21, 13, 5, 63, 55,
47, 39, 31, 23, 15, 7 };
int[] IP1 = { 40, 8, 48, 16, 56, 24, 64,
32, 39, 7, 47, 15, 55,
23, 63, 31, 38, 6, 46,
14, 54, 22, 62, 30, 37,
5, 45, 13, 53, 21, 61,
29, 36, 4, 44, 12, 52,
20, 60, 28, 35, 3, 43,
11, 51, 19, 59, 27, 34,
2, 42, 10, 50, 18, 58,
26, 33, 1, 41, 9, 49,
17, 57, 25 };
int[] PC1 = { 57, 49, 41, 33, 25,
17, 9, 1, 58, 50, 42, 34, 26,
18, 10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36, 63,
55, 47, 39, 31, 23, 15, 7, 62,
54, 46, 38, 30, 22, 14, 6, 61,
53, 45, 37, 29, 21, 13, 5, 28,
20, 12, 4 };
int[] EP = { 32, 1, 2, 3, 4, 5, 4,
5, 6, 7, 8, 9, 8, 9, 10,
11, 12, 13, 12, 13, 14, 15,
16, 17, 16, 17, 18, 19, 20,
21, 20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29, 28,
29, 30, 31, 32, 1 };
import java.util.*;
class Main {
private static class DES {
// CONSTANTS
int[] IP = { 58, 50, 42, 34, 26, 18,
10, 2, 60, 52, 44, 36, 28, 20,
12, 4, 62, 54, 46, 38,
30, 22, 14, 6, 64, 56,
48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17,
9, 1, 59, 51, 43, 35, 27,
19, 11, 3, 61, 53, 45,
37, 29, 21, 13, 5, 63, 55,
47, 39, 31, 23, 15, 7 };
int[] IP1 = { 40, 8, 48, 16, 56, 24, 64,
32, 39, 7, 47, 15, 55,
23, 63, 31, 38, 6, 46,
14, 54, 22, 62, 30, 37,
5, 45, 13, 53, 21, 61,
29, 36, 4, 44, 12, 52,
20, 60, 28, 35, 3, 43,
11, 51, 19, 59, 27, 34,
2, 42, 10, 50, 18, 58,
26, 33, 1, 41, 9, 49,
17, 57, 25 };
int[] PC1 = { 57, 49, 41, 33, 25,
17, 9, 1, 58, 50, 42, 34, 26,
18, 10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36, 63,
55, 47, 39, 31, 23, 15, 7, 62,
54, 46, 38, 30, 22, 14, 6, 61,
53, 45, 37, 29, 21, 13, 5, 28,
20, 12, 4 };
int[] EP = { 32, 1, 2, 3, 4, 5, 4,
5, 6, 7, 8, 9, 8, 9, 10,
11, 12, 13, 12, 13, 14, 15,
16, 17, 16, 17, 18, 19, 20,
21, 20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29, 28,
29, 30, 31, 32, 1 };
int[] PC2 = { 14, 17, 11, 24, 1, 5, 3,
28, 15, 6, 21, 10, 23, 19, 12,
4, 26, 8, 16, 7, 27, 20, 13, 2,
41, 52, 31, 37, 47, 55, 30, 40,
51, 45, 33, 48, 44, 49, 39, 56,
34, 53, 46, 42, 50, 36, 29, 32 };
int[] P = { 16, 7, 20, 21, 29, 12, 28,
17, 1, 15, 23, 26, 5, 18,
31, 10, 2, 8, 24, 14, 32,
27, 3, 9, 19, 13, 30, 6,
22, 11, 4, 25 };
import java.util.*;
class Main {
private static class DES {
// CONSTANTS
int[] IP = { 58, 50, 42, 34, 26, 18,
10, 2, 60, 52, 44, 36, 28, 20,
12, 4, 62, 54, 46, 38,
30, 22, 14, 6, 64, 56,
48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17,
9, 1, 59, 51, 43, 35, 27,
19, 11, 3, 61, 53, 45,
37, 29, 21, 13, 5, 63, 55,
47, 39, 31, 23, 15, 7 };
int[] IP1 = { 40, 8, 48, 16, 56, 24, 64,
32, 39, 7, 47, 15, 55,
23, 63, 31, 38, 6, 46,
14, 54, 22, 62, 30, 37,
5, 45, 13, 53, 21, 61,
29, 36, 4, 44, 12, 52,
20, 60, 28, 35, 3, 43,
11, 51, 19, 59, 27, 34,
2, 42, 10, 50, 18, 58,
26, 33, 1, 41, 9, 49,
17, 57, 25 };
int[] PC1 = { 57, 49, 41, 33, 25,
17, 9, 1, 58, 50, 42, 34, 26,
18, 10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36, 63,
55, 47, 39, 31, 23, 15, 7, 62,
54, 46, 38, 30, 22, 14, 6, 61,
53, 45, 37, 29, 21, 13, 5, 28,
20, 12, 4 };
int[] EP = { 32, 1, 2, 3, 4, 5, 4,
5, 6, 7, 8, 9, 8, 9, 10,
11, 12, 13, 12, 13, 14, 15,
16, 17, 16, 17, 18, 19, 20,
21, 20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29, 28,
29, 30, 31, 32, 1 };
int[] PC2 = { 14, 17, 11, 24, 1, 5, 3,
28, 15, 6, 21, 10, 23, 19, 12,
4, 26, 8, 16, 7, 27, 20, 13, 2,
41, 52, 31, 37, 47, 55, 30, 40,
51, 45, 33, 48, 44, 49, 39, 56,
34, 53, 46, 42, 50, 36, 29, 32 };
int[] P = { 16, 7, 20, 21, 29, 12, 28,
17, 1, 15, 23, 26, 5, 18,
31, 10, 2, 8, 24, 14, 32,
27, 3, 9, 19, 13, 30, 6,
22, 11, 4, 25 };
int[][][] sbox = {
{ { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } },
{ { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } },
{ { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } },
{ { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } },
{ { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } },
{ { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } },
{ { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } },
{ { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } }
};
int[] shiftBits = { 1, 1, 2, 2, 2, 2, 2, 2,
1, 2, 2, 2, 2, 2, 2, 1 };
String hextoBin(String input)
{
int n = input.length() * 4;
input = Long.toBinaryString(
Long.parseUnsignedLong(input, 16));
while (input.length() < n)
input = "0" + input;
return input;
}
String-hextoBin（字符串输入）
{
int n=input.length（）*4；
输入=长。toBinaryString（
Long.parseUnsignedLong（输入，16））；
while（input.length（） int[][][] sbox = {
{ { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } },
{ { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } },
{ { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } },
{ { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } },
{ { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } },
{ { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } },
{ { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } },
{ { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } }
};
int[] shiftBits = { 1, 1, 2, 2, 2, 2, 2, 2,
1, 2, 2, 2, 2, 2, 2, 1 };
String hextoBin(String input)
{
int n = input.length() * 4;
input = Long.toBinaryString(
Long.parseUnsignedLong(input, 16));
while (input.length() < n)
input = "0" + input;
return input;
}
String binToHex（字符串输入）
{
int n=（int）input.length（）/4；
输入=长.toHexString（
Long.parseUnsignedLong（输入，2））；
while（input.length（） String binToHex(String input)
{
int n = (int)input.length() / 4;
input = Long.toHexString(
Long.parseUnsignedLong(input, 2));
while (input.length() < n)
input = "0" + input;
return input;
}
字符串置换（int[]序列，字符串输入）
{
字符串输出=”；
输入=hextoBin（输入）；
for（int i=0；i String permutation(int[] sequence, String input)
{
String output = "";
input = hextoBin(input);
for (int i = 0; i < sequence.length; i++)
output += input.charAt(sequence[i] - 1);
output = binToHex(output);
return output;
}
字符串异或（字符串a、字符串b）
{
//十六进制到十进制（以10为基数）
long t_a=long.parseUnsignedLong（a，16）；
//十六进制到十进制（以10为基数）
long t_b=long.parseUnsignedLong（b，16）；
//异或
t_a=t_a^t_b；
//十进制到十六进制
a=长的tohextstring（t_a）；
//预加0以保持长度
而（a.length（） String xor(String a, String b)
{
// hexadecimal to decimal(base 10)
long t_a = Long.parseUnsignedLong(a, 16);
// hexadecimal to decimal(base 10)
long t_b = Long.parseUnsignedLong(b, 16);
// xor
t_a = t_a ^ t_b;
// decimal to hexadecimal
a = Long.toHexString(t_a);
// prepend 0's to maintain length
while (a.length() < b.length())
a = "0" + a;
return a;
}
String leftCircularShift（字符串输入，int numBits）
{
int n=input.length（）*4；
int perm[]=新的int[n]；
对于（int i=0；i0）
输入=置换（置换，输入）；
返回输入；
}
String leftCircularShift(String input, int numBits)
{
int n = input.length() * 4;
int perm[] = new int[n];
for (int i = 0; i < n - 1; i++)
perm[i] = (i + 2);
perm[n - 1] = 1;
while (numBits-- > 0)
input = permutation(perm, input);
return input;
}
String[]getKeys（字符串键）
{
字符串键[]=新字符串[16]；
//第一密钥置换
key=置换（PC1，key）；
对于（inti=0；i<16；i++）{
键=左循环换档（
键.子串（0,7），移位位[i]）
+左循环换档（键。子串（7，14），
移位位[i]）；
//第二密钥置换
密钥[i]=置换（PC2，密钥）；
}
返回键；
}
String[] getKeys(String key)
{
String keys[] = new String[16];
// first key permutation
key = permutation(PC1, key);
for (int i = 0; i < 16; i++) {
key = leftCircularShift(
key.substring(0, 7), shiftBits[i])
+ leftCircularShift(key.substring(7, 14),
shiftBits[i]);
// second key permutation
keys[i] = permutation(PC2, key);
}
return keys;
}
stringsbox（字符串输入）
{
字符串输出=”；
输入=hextoBin（输入）；
对于（inti=0；i<48；i+=6）{
字符串温度=输入子字符串（i，i+6）；
int num=i/6；
int行=整数。parseInt（
温度特征（0）+“温度特征”（5），2）；
int col=Integer.parseInt（
温度子串（1,5,2）；
输出+=整数。toHexString（
sbox[num][row][col]；
}
返回输出；
}
字符串舍入（字符串输入、字符串键、整数）
{
//fk
字符串left=input.substring（0,8）；
字符串温度=输入子字符串（8,16）；
字符串右=温度；
//展开置换
temp=置换（EP，temp）；
//xor温度和圆键
温度=异或（温度，键）；
//在s-box表中查找
温度=sBox（温度）；
//直D盒
temp=置换（P，temp）；
//异或
左=异或（左，温度）；
System.out.println（“圆形”
+（数字+1）+“
+对,toUpperCase()
+“”+左。toUpperCase（）+“”
+key.toUpperCase（））；
//交换者
返回右+左；
}
字符串加密（字符串明文、字符串密钥）
{
int i；
//拿到圆钥匙
字符串键[]=getKeys（键）；
//初始排列
明文=置换（IP，明文）；
System.out.println（
“初始排列后：”
+明文.toUpperCase（））；
System.out.println（
“拆分后：L0=”
+明文.substring（0,8）.toUpperCase（）
+“R0=”
+明文.substring（8,16）.toUpperCase（）+“\n”）；
//16轮
对于（i=0；i<16；i++）{
纯文本=圆形（纯文本，键[i]，i）；
}
//32位交换
明文=明文。子字符串（8，16）
+明文子串（0,8）；
//最终置换
明文=置换（IP1，明文）；
返回纯文本；
}
}
公共静态void main（字符串参数[]）
{
String text=“0123456789ABCDEF”；
String key=“133457799BBCDFF1”；
DES密码=新DES（）；
System.out.println（“加密：\n”）；
text=cipher.encrypt（文本，密钥）；
System.out.println（
“\n提示文字：”+t