需要用到MD5跟SHA1算法对字符串做一些处理,网上找来的都是很多函数组合起来的,用起来比较麻烦,干脆自己写了个单函数版本的,贴上来吧- -
//MD5.cpp
#include <string>
#include <iostream>

using namespace std;

typedef unsigned long DWORD;

std::string MD5(std::string s)
{
	const char HEX_CHAR[]={'0', '1', '2', '3', '4', '5', '6', '7',
		'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};

	const DWORD Md5Calc_t[ 64 ] = {
		0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
		0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
		0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
		0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,

		0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
		0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
		0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
		0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,

		0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
		0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
		0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
		0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,

		0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
		0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
		0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
		0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
	};

	const DWORD Md5Calc_s[ 16 ] = { 7,12,17,22,5, 9,14,20, 4,11,16,23,6,10,15,21 };

	//扩展成K*512位
	DWORD *data;
	int l;
	l = s.length()*8;
	data = new DWORD[((l/512)+1)*512];
	memset(data, 0, sizeof(data[0])*((l/512)+1)*512);
	for(unsigned int i = 0; i < s.length(); ++i){
		data[i / 4] |= s[i] << 8*((i % 4));
	}
	data[s.length() / 4] |= 0x80 << 8*((s.length()%4));
	data[((l/512)+1)*512/32-2]=l;
	l = (l/512)+1;
	//开始计算
	DWORD H[4], a, b, c, d;
	H[0]=0x67452301, H[1]=0xefcdab89, H[2]=0x98badcfe, H[3]=0x10325476;

	for(int i = 0; i<l; ++i){
		DWORD M[16];
		for(int t = 0; t<16; ++t)
			M[t] = data[i*16+t];

		a = H[0], b = H[1], c = H[2], d = H[3];

		DWORD s, k, x, e;
		s = k = 0;
		/** Turn 1, F */
		s = k = 0;
		for( x = 0; x < 16; x ++ ){
			e = ( b & c ) | ( ~b & d );
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			s = ( s + 1 ) % 4; k ++;
		}

		/** Turn 2, G */
		k = 1; s = 4;
		for( x = 16; x < 32; x ++ ){
			e = ( b & d ) | ( c & ~d );
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			k = ( k + 5 ) % 16;
			s = ( s - 3 ) % 4 + 4;
		}

		/** Turn 3, H */
		k = 5; s = 8;
		for( x = 32; x < 48; x ++ ){
			e = b ^ c ^ d;
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			k = ( k + 3 ) % 16;
			s = ( s - 7 ) % 4 + 8;
		}

		/** Turn 4, I */
		k = 0; s = 12;
		for( x = 48; x < 64; x ++ ){
			e = c ^ ( b | ~d );
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			k = ( k + 7 ) % 16;
			s = ( s - 11 ) % 4  + 12;
		}

		H[0] += a;
		H[1] += b;
		H[2] += c;
		H[3] += d;
	}
	char buf[33];
	for(int i = 0; i<32; ++i){
		buf[i] = HEX_CHAR[(H[i / 8] >> (4*((i % 8))))&0xf];
	}
	for(int i = 0; i<32; i += 2){
		char tmp = buf[i];
		buf[i] = buf[i+1];
		buf[i+1] = tmp;
	}
	buf[32] = '\0';
	return buf;
}

int main(int argc, char* argv[])
{
	char s[100];
	while(true){
		scanf("%s", s);
		cout << MD5(s) << endl;
	}
	return 0;
}





//SHA1.cpp
#include <string>
#include <iostream>

using namespace std;

typedef unsigned long DWORD;

std::string MD5(std::string s)
{
	const char HEX_CHAR[]={'0', '1', '2', '3', '4', '5', '6', '7',
		'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};

	const DWORD Md5Calc_t[ 64 ] = {
		0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
		0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
		0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
		0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,

		0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
		0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
		0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
		0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,

		0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
		0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
		0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
		0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,

		0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
		0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
		0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
		0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391
	};

	const DWORD Md5Calc_s[ 16 ] = { 7,12,17,22,5, 9,14,20, 4,11,16,23,6,10,15,21 };

	//扩展成K*512位
	DWORD *data;
	int l;
	l = s.length()*8;
	data = new DWORD[((l/512)+1)*512];
	memset(data, 0, sizeof(data[0])*((l/512)+1)*512);
	for(unsigned int i = 0; i < s.length(); ++i){
		data[i / 4] |= s[i] << 8*((i % 4));
	}
	data[s.length() / 4] |= 0x80 << 8*((s.length()%4));
	data[((l/512)+1)*512/32-2]=l;
	l = (l/512)+1;
	//开始计算
	DWORD H[4], a, b, c, d;
	H[0]=0x67452301, H[1]=0xefcdab89, H[2]=0x98badcfe, H[3]=0x10325476;

	for(int i = 0; i<l; ++i){
		DWORD M[16];
		for(int t = 0; t<16; ++t)
			M[t] = data[i*16+t];

		a = H[0], b = H[1], c = H[2], d = H[3];

		DWORD s, k, x, e;
		s = k = 0;
		/** Turn 1, F */
		s = k = 0;
		for( x = 0; x < 16; x ++ ){
			e = ( b & c ) | ( ~b & d );
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			s = ( s + 1 ) % 4; k ++;
		}

		/** Turn 2, G */
		k = 1; s = 4;
		for( x = 16; x < 32; x ++ ){
			e = ( b & d ) | ( c & ~d );
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			k = ( k + 5 ) % 16;
			s = ( s - 3 ) % 4 + 4;
		}

		/** Turn 3, H */
		k = 5; s = 8;
		for( x = 32; x < 48; x ++ ){
			e = b ^ c ^ d;
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			k = ( k + 3 ) % 16;
			s = ( s - 7 ) % 4 + 8;
		}

		/** Turn 4, I */
		k = 0; s = 12;
		for( x = 48; x < 64; x ++ ){
			e = c ^ ( b | ~d );
			e = a + e + M[ k ] + Md5Calc_t[ x ];
			e = ( e >> ( 32 - Md5Calc_s[ s ] )) | ( e << Md5Calc_s[ s ] );
			a = b + e;
			e = d; d = c; c = b; b = a; a = e;
			k = ( k + 7 ) % 16;
			s = ( s - 11 ) % 4  + 12;
		}

		H[0] += a;
		H[1] += b;
		H[2] += c;
		H[3] += d;
	}
	char buf[33];
	for(int i = 0; i<32; ++i){
		buf[i] = HEX_CHAR[(H[i / 8] >> (4*((i % 8))))&0xf];
	}
	for(int i = 0; i<32; i += 2){
		char tmp = buf[i];
		buf[i] = buf[i+1];
		buf[i+1] = tmp;
	}
	buf[32] = '\0';
	return buf;
}

std::string SHA1(std::string s)
{
	const char HEX_CHAR[]={'0', '1', '2', '3', '4', '5', '6', '7',
							'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
	const DWORD K[] = {0x5A827999, 0x6ED9EBA1, 0x8F1BBCDC, 0xCA62C1D6};
	//扩展成K*512位
	DWORD *data;
	int l;
	l = s.length()*8;
	data = new DWORD[((l/512)+1)*512];
	memset(data, 0, sizeof(data[0])*((l/512)+1)*512);
	for(unsigned int i = 0; i < s.length(); ++i){
		data[i / 4] |= s[i] << 8*(3 - (i % 4));
	}
	data[s.length() / 4] |= 0x80 << 8*(3-(s.length()%4));
	data[((l/512)+1)*512/32-1]=l;
	l = (l/512)+1;
	//开始计算
	DWORD H[5], G[5];
	H[0] = G[0] = 0x67452301;
	H[1] = G[1] = 0xEFCDAB89;
	H[2] = G[2] = 0x98BADCFE;
	H[3] = G[3] = 0x10325476;
	H[4] = G[4] = 0xC3D2E1F0;
	for(int i = 0; i<l; ++i){
		DWORD W[80];
		int t;
		for(t = 0; t<16; ++t)
			W[t] = data[i*16+t];
		for(t = 16; t<80; ++t){
			DWORD tmp = W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16];
			W[t] = (tmp << 1)|(tmp >> 31);
		}
		DWORD tmp;
		for(t = 0; t<5; ++t)
			H[t] = G[t];
		for(t = 0; t<20; ++t){
			tmp = ((H[0] << 5) | (H[0] >> 27)) + ((H[1] & H[2]) | (~ H[1] & H[3])) + H[4] + W[t] + K[0];
			H[4] = H[3]; H[3] = H[2]; H[2] = (H[1]<<30)|(H[1] >> 2); H[1] = H[0]; H[0] = tmp;
		}
		for(t = 20; t<40; ++t){
			tmp = ((H[0] << 5) | (H[0] >> 27)) + (H[1] ^ H[2] ^ H[3]) + H[4] + W[t] + K[1];
			H[4] = H[3]; H[3] = H[2]; H[2] = (H[1]<<30)|(H[1] >> 2); H[1] = H[0]; H[0] = tmp;
		}
		for(t = 40; t<60; ++t){
			tmp = ((H[0] << 5) | (H[0] >> 27)) + ((H[1] & H[2])|(H[2] & H[3])|(H[1] & H[3])) + H[4] + W[t] + K[2];
			H[4] = H[3]; H[3] = H[2]; H[2] = (H[1]<<30)|(H[1] >> 2); H[1] = H[0]; H[0] = tmp;
		}
		for(t = 60; t<80; ++t){
			tmp = ((H[0] << 5) | (H[0] >> 27)) + (H[1] ^ H[2] ^ H[3]) + H[4] + W[t] + K[3];
			H[4] = H[3]; H[3] = H[2]; H[2] = (H[1]<<30)|(H[1] >> 2); H[1] = H[0]; H[0] = tmp;
		}
		for(t = 0; t<5; ++t)
			G[t] += H[t];
	}
	delete data;
	char buf[41];
	for(int i = 0; i<40; ++i){
		buf[i] = HEX_CHAR[(G[i / 8] >> (4*(7- (i % 8))))&0xf];
	}
	buf[40] = '\0';
	return buf;
}

int main(int argc, char* argv[])
{
	char s[100];
	while(true){
		scanf("%s", s);
		cout << MD5("cb3%$%^$7xce" + SHA1("b4@789#^fc5"+string(s)+"*^v%$2!#@a$*(m@"))<< endl;
	}
	return 0;
}