md5加密c程序
㈠ 求 Oracle MD5加密，及java程序端的处理步骤
今天刚做了个加密的程序:分享一下:
你可以这样做:你在新建的密码的时候 去调用下面的方法 把密码带进去加密 此时向数据库中插入这个加密的字段。 登录的时候 输入密码 当然这个密码要转为加密的密文,这个密文去与你一开始新增加的密文进行匹配 如果匹配上啦 那么就可以登录进去啦。
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] b = md.digest(这里是你加密的密码.getBytes("utf8"));
StringBuilder ret=new StringBuilder(b.length<<1);
for(int i=0;i<b.length;i++){
ret.append(Character.forDigit((b[i]>>4)&0xf,16));
ret.append(Character.forDigit(b[i]&0xf,16));
}
ret.toString();
System.out.println(ret.toString());
String result = "";
for (int i = 0; i < b.length; i++) {
String tmp = Integer.toHexString(b[i] & 0xFF);
if (tmp.length() == 1) {
result += "0" + tmp;
} else {
result += tmp;
}
}
System.out.println(new String(result));
}
㈡ 求一个简单的md5加密程序C或C++代码
C语言实现MD5算法
#include<stdio.h>
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
#define H(x, y, z) ((x) ^ (y) ^ (z))
#define I(x, y, z) ((y) ^ ((x) | (~z)))
#define RL(x, y) (((x) << (y)) | ((x) >> (32 - (y)))) //x向左循环移y位
#define PP(x) (x<<24)|((x<<8)&0xff0000)|((x>>8)&0xff00)|(x>>24) //将x高低位互换,例如PP(aabbccdd)=ddccbbaa
#define FF(a, b, c, d, x, s, ac) a = b + (RL((a + F(b,c,d) + x + ac),s))
#define GG(a, b, c, d, x, s, ac) a = b + (RL((a + G(b,c,d) + x + ac),s))
#define HH(a, b, c, d, x, s, ac) a = b + (RL((a + H(b,c,d) + x + ac),s))
#define II(a, b, c, d, x, s, ac) a = b + (RL((a + I(b,c,d) + x + ac),s))
unsigned A,B,C,D,a,b,c,d,i,len,flen[2],x[16]; //i临时变量,len文件长,flen[2]为64位二进制表示的文件初始长度
char filename[200]; //文件名
FILE *fp;
void md5(){ //MD5核心算法,供64轮
a=A,b=B,c=C,d=D;
/**//* Round 1 */
FF (a, b, c, d, x[ 0], 7, 0xd76aa478); /**//* 1 */
FF (d, a, b, c, x[ 1], 12, 0xe8c7b756); /**//* 2 */
FF (c, d, a, b, x[ 2], 17, 0x242070db); /**//* 3 */
FF (b, c, d, a, x[ 3], 22, 0xc1bdceee); /**//* 4 */
FF (a, b, c, d, x[ 4], 7, 0xf57c0faf); /**//* 5 */
FF (d, a, b, c, x[ 5], 12, 0x4787c62a); /**//* 6 */
FF (c, d, a, b, x[ 6], 17, 0xa8304613); /**//* 7 */
FF (b, c, d, a, x[ 7], 22, 0xfd469501); /**//* 8 */
FF (a, b, c, d, x[ 8], 7, 0x698098d8); /**//* 9 */
FF (d, a, b, c, x[ 9], 12, 0x8b44f7af); /**//* 10 */
FF (c, d, a, b, x[10], 17, 0xffff5bb1); /**//* 11 */
FF (b, c, d, a, x[11], 22, 0x895cd7be); /**//* 12 */
FF (a, b, c, d, x[12], 7, 0x6b901122); /**//* 13 */
FF (d, a, b, c, x[13], 12, 0xfd987193); /**//* 14 */
FF (c, d, a, b, x[14], 17, 0xa679438e); /**//* 15 */
FF (b, c, d, a, x[15], 22, 0x49b40821); /**//* 16 */
/**//* Round 2 */
GG (a, b, c, d, x[ 1], 5, 0xf61e2562); /**//* 17 */
GG (d, a, b, c, x[ 6], 9, 0xc040b340); /**//* 18 */
GG (c, d, a, b, x[11], 14, 0x265e5a51); /**//* 19 */
GG (b, c, d, a, x[ 0], 20, 0xe9b6c7aa); /**//* 20 */
GG (a, b, c, d, x[ 5], 5, 0xd62f105d); /**//* 21 */
GG (d, a, b, c, x[10], 9, 0x02441453); /**//* 22 */
GG (c, d, a, b, x[15], 14, 0xd8a1e681); /**//* 23 */
GG (b, c, d, a, x[ 4], 20, 0xe7d3fbc8); /**//* 24 */
GG (a, b, c, d, x[ 9], 5, 0x21e1cde6); /**//* 25 */
GG (d, a, b, c, x[14], 9, 0xc33707d6); /**//* 26 */
GG (c, d, a, b, x[ 3], 14, 0xf4d50d87); /**//* 27 */
GG (b, c, d, a, x[ 8], 20, 0x455a14ed); /**//* 28 */
GG (a, b, c, d, x[13], 5, 0xa9e3e905); /**//* 29 */
GG (d, a, b, c, x[ 2], 9, 0xfcefa3f8); /**//* 30 */
GG (c, d, a, b, x[ 7], 14, 0x676f02d9); /**//* 31 */
GG (b, c, d, a, x[12], 20, 0x8d2a4c8a); /**//* 32 */
/**//* Round 3 */
HH (a, b, c, d, x[ 5], 4, 0xfffa3942); /**//* 33 */
HH (d, a, b, c, x[ 8], 11, 0x8771f681); /**//* 34 */
HH (c, d, a, b, x[11], 16, 0x6d9d6122); /**//* 35 */
HH (b, c, d, a, x[14], 23, 0xfde5380c); /**//* 36 */
HH (a, b, c, d, x[ 1], 4, 0xa4beea44); /**//* 37 */
HH (d, a, b, c, x[ 4], 11, 0x4bdecfa9); /**//* 38 */
HH (c, d, a, b, x[ 7], 16, 0xf6bb4b60); /**//* 39 */
HH (b, c, d, a, x[10], 23, 0xbebfbc70); /**//* 40 */
HH (a, b, c, d, x[13], 4, 0x289b7ec6); /**//* 41 */
HH (d, a, b, c, x[ 0], 11, 0xeaa127fa); /**//* 42 */
HH (c, d, a, b, x[ 3], 16, 0xd4ef3085); /**//* 43 */
HH (b, c, d, a, x[ 6], 23, 0x04881d05); /**//* 44 */
HH (a, b, c, d, x[ 9], 4, 0xd9d4d039); /**//* 45 */
HH (d, a, b, c, x[12], 11, 0xe6db99e5); /**//* 46 */
HH (c, d, a, b, x[15], 16, 0x1fa27cf8); /**//* 47 */
HH (b, c, d, a, x[ 2], 23, 0xc4ac5665); /**//* 48 */
/**//* Round 4 */
II (a, b, c, d, x[ 0], 6, 0xf4292244); /**//* 49 */
II (d, a, b, c, x[ 7], 10, 0x432aff97); /**//* 50 */
II (c, d, a, b, x[14], 15, 0xab9423a7); /**//* 51 */
II (b, c, d, a, x[ 5], 21, 0xfc93a039); /**//* 52 */
II (a, b, c, d, x[12], 6, 0x655b59c3); /**//* 53 */
II (d, a, b, c, x[ 3], 10, 0x8f0ccc92); /**//* 54 */
II (c, d, a, b, x[10], 15, 0xffeff47d); /**//* 55 */
II (b, c, d, a, x[ 1], 21, 0x85845dd1); /**//* 56 */
II (a, b, c, d, x[ 8], 6, 0x6fa87e4f); /**//* 57 */
II (d, a, b, c, x[15], 10, 0xfe2ce6e0); /**//* 58 */
II (c, d, a, b, x[ 6], 15, 0xa3014314); /**//* 59 */
II (b, c, d, a, x[13], 21, 0x4e0811a1); /**//* 60 */
II (a, b, c, d, x[ 4], 6, 0xf7537e82); /**//* 61 */
II (d, a, b, c, x[11], 10, 0xbd3af235); /**//* 62 */
II (c, d, a, b, x[ 2], 15, 0x2ad7d2bb); /**//* 63 */
II (b, c, d, a, x[ 9], 21, 0xeb86d391); /**//* 64 */
A += a;
B += b;
C += c;
D += d;
}
main(){
while(1){
printf("Input file:");
gets(filename); //用get函数,避免scanf以空格分割数据,
if (filename[0]==34) filename[strlen(filename)-1]=0,strcpy(filename,filename+1); //支持文件拖曳,但会多出双引号,这里是处理多余的双引号
if (!strcmp(filename,"exit")) exit(0); //输入exit退出
if (!(fp=fopen(filename,"rb"))) {printf("Can not open this file!\n");continue;} //以二进制打开文件
fseek(fp, 0, SEEK_END); //文件指针转到文件末尾
if((len=ftell(fp))==-1) {printf("Sorry! Can not calculate files which larger than 2 GB!\n");fclose(fp);continue;} //ftell函数返回long,最大为2GB,超出返回-1
rewind(fp); //文件指针复位到文件头
A=0x67452301,B=0xefcdab89,C=0x98badcfe,D=0x10325476; //初始化链接变量
flen[1]=len/0x20000000; //flen单位是bit
flen[0]=(len%0x20000000)*8;
memset(x,0,64); //初始化x数组为0
fread(&x,4,16,fp); //以4字节为一组,读取16组数据
for(i=0;i<len/64;i++){ //循环运算直至文件结束
md5();
memset(x,0,64);
fread(&x,4,16,fp);
}
((char*)x)[len%64]=128; //文件结束补1,补0操作,128二进制即10000000
if(len%64>55) md5(),memset(x,0,64);
memcpy(x+14,flen,8); //文件末尾加入原文件的bit长度
md5();
fclose(fp);
printf("MD5 Code:%08x%08x%08x%08x\n",PP(A),PP(B),PP(C),PP(D)); //高低位逆反输出
}
}
㈢ 怎样可以把微信的小程序加密
1、下载MD5源文件(JS);
2、在小程序模块中使用require引入外部模块；也可以在index.html中直接全局引入md5.js文件。
因为源md5.js中没有队模块因为输出，如果使用require需要export，所以在md5.js中需要加入以下代码：
mole.exports = {
hexMD5: hex_md5, //需要输出的加密算法，我这边只写了我需要得两种
b64Md5: b64_md5,
}
在js文件中使用require引入md5:
const md5 = require('../../assets/js/md5/md5.js');
使用：
let b64 = md5.b64Md5(code); //code需要加密的数据
下面是我的文件结构：
md5.js 代码如下;
/*
* A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
* Digest Algorithm, as defined in RFC 1321.
* Version 2.1 Copyright (C) Paul Johnston 1999 - 2002.
* Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
* Distributed under the BSD License
* See http://pajhome.org.uk/crypt/md5 for more info.
*/
/*
* Configurable variables. You may need to tweak these to be compatible with
* the server-side, but the defaults work in most cases.
*/
var hexcase =
0;
/* hex output format. 0 - lowercase; 1 - uppercase */
var b64pad =
"";
/* base-64 pad character. "=" for strict RFC compliance */
var chrsz =
8;
/* bits per input character. 8 - ASCII; 16 - Unicode */
/*
* These are the functions you'll usually want to call
* They take string arguments and return either hex or base-64 encoded strings
*/
function hex_md5(s){
return binl2hex(core_md5(str2binl(s), s.length * chrsz));}
function b64_md5(s){
return binl2b64(core_md5(str2binl(s), s.length * chrsz));}
function str_md5(s){
return binl2str(core_md5(str2binl(s), s.length * chrsz));}
function hex_hmac_md5(key, data) {
return binl2hex(core_hmac_md5(key, data)); }
function b64_hmac_md5(key, data) {
return binl2b64(core_hmac_md5(key, data)); }
function str_hmac_md5(key, data) {
return binl2str(core_hmac_md5(key, data)); }
/*
* Perform a simple self-test to see if the VM is working
*/
function md5_vm_test()
{
return hex_md5( "abc") ==
"";
}
/*
* Calculate the MD5 of an array of little-endian words, and a bit length
*/
function core_md5(x, len)
{
/* append padding */
x[len >>
5] |=
0x80 << ((len) %
32);
x[(((len +
64) >>>
9) <<
4) +
14] = len;
var a =
1732584193;
var b = - 271733879;
var c = - 1732584194;
var d =
271733878;
for( var i =
0; i < x.length; i +=
16)
{
var olda = a;
var oldb = b;
var oldc = c;
var oldd = d;
a = md5_ff(a, b, c, d, x[i+
0],
7 , - 680876936);
d = md5_ff(d, a, b, c, x[i+
1],
12, - 389564586);
c = md5_ff(c, d, a, b, x[i+
2],
17,
606105819);
b = md5_ff(b, c, d, a, x[i+
3],
22, - 1044525330);
a = md5_ff(a, b, c, d, x[i+
4],
7 , - 176418897);
d = md5_ff(d, a, b, c, x[i+
5],
12,
1200080426);
c = md5_ff(c, d, a, b, x[i+
6],
17, - 1473231341);
b = md5_ff(b, c, d, a, x[i+
7],
22, - 45705983);
a = md5_ff(a, b, c, d, x[i+
8],
7 ,
1770035416);
d = md5_ff(d, a, b, c, x[i+
9],
12, - 1958414417);
c = md5_ff(c, d, a, b, x[i+ 10],
17, - 42063);
b = md5_ff(b, c, d, a, x[i+ 11],
22, - 1990404162);
a = md5_ff(a, b, c, d, x[i+ 12],
7 ,
1804603682);
d = md5_ff(d, a, b, c, x[i+ 13],
12, - 40341101);
c = md5_ff(c, d, a, b, x[i+ 14],
17, - 1502002290);
b = md5_ff(b, c, d, a, x[i+ 15],
22,
1236535329);
a = md5_gg(a, b, c, d, x[i+
1],
5 , - 165796510);
d = md5_gg(d, a, b, c, x[i+
6],
9 , - 1069501632);
c = md5_gg(c, d, a, b, x[i+ 11],
14,
643717713);
b = md5_gg(b, c, d, a, x[i+
0],
20, - 373897302);
a = md5_gg(a, b, c, d, x[i+
5],
5 , - 701558691);
d = md5_gg(d, a, b, c, x[i+ 10],
9 ,
38016083);
c = md5_gg(c, d, a, b, x[i+ 15],
14, - 660478335);
b = md5_gg(b, c, d, a, x[i+
4],
20, - 405537848);
a = md5_gg(a, b, c, d, x[i+
9],
5 ,
568446438);
d = md5_gg(d, a, b, c, x[i+ 14],
9 , - 1019803690);
c = md5_gg(c, d, a, b, x[i+
3],
14, - 187363961);
b = md5_gg(b, c, d, a, x[i+
8],
20,
1163531501);
a = md5_gg(a, b, c, d, x[i+ 13],
5 , - 1444681467);
d = md5_gg(d, a, b, c, x[i+
2],
9 , - 51403784);
c = md5_gg(c, d, a, b, x[i+
7],
14,
1735328473);
b = md5_gg(b, c, d, a, x[i+ 12],
20, - 1926607734);
a = md5_hh(a, b, c, d, x[i+
5],
4 , - 378558);
d = md5_hh(d, a, b, c, x[i+
8],
11, - 2022574463);
c = md5_hh(c, d, a, b, x[i+ 11],
16,
1839030562);
b = md5_hh(b, c, d, a, x[i+ 14],
23, - 35309556);
a = md5_hh(a, b, c, d, x[i+
1],
4 , - 1530992060);
d = md5_hh(d, a, b, c, x[i+
4],
11,
1272893353);
c = md5_hh(c, d, a, b, x[i+
7],
16, - 155497632);
b = md5_hh(b, c, d, a, x[i+ 10],
23, - 1094730640);
a = md5_hh(a, b, c, d, x[i+ 13],
4 ,
681279174);
d = md5_hh(d, a, b, c, x[i+
0],
11, - 358537222);
c = md5_hh(c, d, a, b, x[i+
3],
16, - 722521979);
b = md5_hh(b, c, d, a, x[i+
6],
23,
76029189);
a = md5_hh(a, b, c, d, x[i+
9],
4 , - 640364487);
d = md5_hh(d, a, b, c, x[i+ 12],
11, - 421815835);
c = md5_hh(c, d, a, b, x[i+ 15],
16,
530742520);
b = md5_hh(b, c, d, a, x[i+
2],
23, - 995338651);
a = md5_ii(a, b, c, d, x[i+
0],
6 , - 198630844);
d = md5_ii(d, a, b, c, x[i+
7],
10,
1126891415);
c = md5_ii(c, d, a, b, x[i+ 14],
15, - 1416354905);
b = md5_ii(b, c, d, a, x[i+
5],
21, - 57434055);
a = md5_ii(a, b, c, d, x[i+ 12],
6 ,
1700485571);
d = md5_ii(d, a, b, c, x[i+
3],
10, - 1894986606);
c = md5_ii(c, d, a, b, x[i+ 10],
15, - 1051523);
b = md5_ii(b, c, d, a, x[i+
1],
21, - 2054922799);
a = md5_ii(a, b, c, d, x[i+
8],
6 ,
1873313359);
d = md5_ii(d, a, b, c, x[i+ 15],
10, - 30611744);
c = md5_ii(c, d, a, b, x[i+
6],
15, - 1560198380);
b = md5_ii(b, c, d, a, x[i+ 13],
21,
1309151649);
a = md5_ii(a, b, c, d, x[i+
4],
6 , - 145523070);
d = md5_ii(d, a, b, c, x[i+ 11],
10, - 1120210379);
c = md5_ii(c, d, a, b, x[i+
2],
15,
718787259);
b = md5_ii(b, c, d, a, x[i+
9],
21, - 343485551);
a = safe_add(a, olda);
b = safe_add(b, oldb);
c = safe_add(c, oldc);
d = safe_add(d, oldd);
}
return Array(a, b, c, d);
}
/*
* These functions implement the four basic operations the algorithm uses.
*/
function md5_cmn(q, a, b, x, s, t)
{
return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}
/*
* Calculate the HMAC-MD5, of a key and some data
*/
function core_hmac_md5(key, data)
{
var bkey = str2binl(key);
if(bkey.length >
16) bkey = core_md5(bkey, key.length * chrsz);
var ipad = Array( 16), opad = Array( 16);
for( var i =
0; i <
16; i++)
{
ipad[i] = bkey[i] ^
0x36363636;
opad[i] = bkey[i] ^
0x5C5C5C5C;
}
var hash = core_md5(ipad.concat(str2binl(data)),
512 + data.length * chrsz);
return core_md5(opad.concat(hash),
512 +
128);
}
/*
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
* to work around bugs in some JS interpreters.
*/
function safe_add(x, y)
{
var lsw = (x &
0xFFFF) + (y &
0xFFFF);
var msw = (x >>
16) + (y >>
16) + (lsw >>
16);
return (msw <<
16) | (lsw &
0xFFFF);
}
/*
* Bitwise rotate a 32-bit number to the left.
*/
function bit_rol(num, cnt)
{
return (num << cnt) | (num >>> ( 32 - cnt));
}
/*
* Convert a string to an array of little-endian words
* If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
*/
function str2binl(str)
{
var bin = Array();
var mask = ( 1 << chrsz) -
1;
for( var i =
0; i < str.length * chrsz; i += chrsz)
bin[i>> 5] |= (str.charCodeAt(i / chrsz) & mask) << (i% 32);
return bin;
}
/*
* Convert an array of little-endian words to a string
*/
function binl2str(bin)
{
var str =
"";
var mask = ( 1 << chrsz) -
1;
for( var i =
0; i < bin.length *
32; i += chrsz)
str += String.fromCharCode((bin[i>> 5] >>> (i %
32)) & mask);
return str;
}
/*
* Convert an array of little-endian words to a hex string.
*/
function binl2hex(binarray)
{
var hex_tab = hexcase ?
"0123456789ABCDEF" :
"0123456789abcdef";
var str =
"";
for( var i =
0; i < binarray.length *
4; i++)
{
str += hex_tab.charAt((binarray[i>> 2] >> ((i% 4)* 8+ 4)) &
0xF) +
hex_tab.charAt((binarray[i>> 2] >> ((i% 4)* 8 )) &
0xF);
}
return str;
}
/*
* Convert an array of little-endian words to a base-64 string
*/
function binl2b64(binarray)
{
var tab =
"+/";
var str =
"";
for( var i =
0; i < binarray.length *
4; i +=
3)
{
var triplet = (((binarray[i >>
2] >>
8 * ( i % 4)) &
0xFF) <<
16)
| (((binarray[i+ 1 >>
2] >>
8 * ((i+ 1)% 4)) &
0xFF) <<
8 )
| ((binarray[i+ 2 >>
2] >>
8 * ((i+ 2)% 4)) &
0xFF);
for( var j =
0; j <
4; j++)
{
if(i *
8 + j *
6 > binarray.length *
32) str += b64pad;
else str += tab.charAt((triplet >>
6*( 3-j)) &
0x3F);
}
}
return str;
}
mole.exports = {
hexMD5: hex_md5,
b64Md5: b64_md5,
}