解决linux c利用openssl进行3des和安卓封装的接口加密解密出的字符串不一样的问题

做项目中需要对密码进行加密，使用linux的openssl进行3des加密解密，发现加密出来的字符串和安卓封装的接口加密后的字符串不一样，之后发现是安卓端对加密出来的字符进行了base64编码，加上base64编码之后加密解密都正常了。

测试代码：
basetype.h

#ifndef _BASETYPE_H_#define _BASETYPE_H_#include <stdbool.h>#include <stdarg.h>typedef unsigned long long uint64_t;typedef unsigned int uint32_t;typedef unsigned short uint16_t;typedef unsigned char uint8_t;typedef unsigned char  BOOL;/* When building OpenTV, these types are defined in the OpenTV headers */typedef unsigned long long u_int64;typedef unsigned int u_int32;typedef unsigned short u_int16;typedef unsigned char u_int8;typedef int sem_id_t;#if !defined(TYPEDEF_H) /* Added to keep softmodem code common */typedef signed long long int64;typedef signed long int32;typedef signed short int16;typedef signed char int8;/* Added to keep softmodem code common */typedef unsigned long long uint64;typedef unsigned long uint32;typedef unsigned short uint16;typedef unsigned char uint8;#endif /* !defined(TYPEDEF_H) */typedef unsigned char           UINT8;typedef unsigned int            UINT16;typedef unsigned long           UINT32;typedef signed long INT32;typedef int                 INT;         ///<Not in v2.0. Borrow the name from uITRON 3.0 and latertypedef unsigned long   DWORD;typedef unsigned short  WORD;typedef unsigned char  BYTE;#ifndef TRUE#define TRUE 1#endif#ifndef FALSE#define FALSE 0#endif#ifndef true#define true 1#endif#ifndef false#define false 0#endif#ifndef NULL#define NULL    0#endiftypedef  signed short           SHORT;typedef  unsigned short     USHORT;typedef  long                   LONG;typedef  unsigned long          ULONG;typedef  unsigned int           UINT;typedef unsigned char  U8;typedef unsigned short  U16;typedef unsigned int    U32;typedef signed int S32;/* Common signed types */typedef  signed char    S8;typedef float           FLOAT;typedef FLOAT           *PFLOAT;typedef unsigned int    *PUINT;typedef unsigned char       u8;typedef signed char         s8;typedef unsigned short int  u16;typedef signed short int    s16;typedef unsigned int        u32;typedef signed int          s32;#endif /* _BASETYPE_H_ */

base64.c

#include <stdio.h>#include <stdlib.h>#include <string.h>const char base64char[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";char *base64_encode(unsigned char *bindata, char * base64, int binlength){    int i, j;    unsigned char current;    for (i = 0, j = 0; i < binlength; i += 3)    {        current = (bindata[i] >> 2);        current &= (unsigned char)0x3F;        base64[j++] = base64char[(int)current];        current = ((unsigned char)(bindata[i] << 4)) & ((unsigned char)0x30);        if (i + 1 >= binlength)        {            base64[j++] = base64char[(int)current];            base64[j++] = '=';            base64[j++] = '=';            break;        }        current |= ((unsigned char)(bindata[i + 1] >> 4)) & ((unsigned char)0x0F);        base64[j++] = base64char[(int)current];        current = ((unsigned char)(bindata[i + 1] << 2)) & ((unsigned char)0x3C);        if (i + 2 >= binlength)        {            base64[j++] = base64char[(int)current];            base64[j++] = '=';            break;        }        current |= ((unsigned char)(bindata[i + 2] >> 6)) & ((unsigned char)0x03);        base64[j++] = base64char[(int)current];        current = ((unsigned char)bindata[i + 2]) & ((unsigned char)0x3F);        base64[j++] = base64char[(int)current];    }    base64[j] = '\0';    return base64;}int base64_decode(const char * base64, unsigned char * bindata){    int i, j;    unsigned char k;    unsigned char temp[4];    for (i = 0, j = 0; base64[i] != '\0'; i += 4)    {        memset(temp, 0xFF, sizeof(temp));        for (k = 0; k < 64; k++)        {            if (base64char[k] == base64[i])                temp[0] = k;        }        for (k = 0; k < 64; k++)        {            if (base64char[k] == base64[i + 1])                temp[1] = k;        }        for (k = 0; k < 64; k++)        {            if (base64char[k] == base64[i + 2])                temp[2] = k;        }        for (k = 0; k < 64; k++)        {            if (base64char[k] == base64[i + 3])                temp[3] = k;        }        bindata[j++] = ((unsigned char)(((unsigned char)(temp[0] << 2)) & 0xFC)) | ((unsigned char)((unsigned char)(temp[1] >> 4) & 0x03));        if (base64[i + 2] == '=')            break;        bindata[j++] = ((unsigned char)(((unsigned char)(temp[1] << 4)) & 0xF0)) | ((unsigned char)((unsigned char)(temp[2] >> 2) & 0x0F));        if (base64[i + 3] == '=')            break;        bindata[j++] = ((unsigned char)(((unsigned char)(temp[2] << 6)) & 0xF0)) | ((unsigned char)(temp[3] & 0x3F));    }    return j;}

ssl_3des.c

#include <stdio.h>#include <stdlib.h>#include <string.h>#include <openssl/des.h>#include "basetype.h"#define KEY_SIZE (24)int encrypt_3des_ecb3(U8 *in, U8 *out, S8 *key){    DES_key_schedule ks1, ks2, ks3;    S8 acKey[KEY_SIZE];    int iIndex = 0;    int len = 0;    int nlen = 0;    char ch = '\0';    U8 src[1024] = {0};    memset(acKey, 0, sizeof(acKey));    len = strlen((char *)key);    for(iIndex = 0; iIndex < len; iIndex++)    {        acKey[iIndex] = key[iIndex];    }    for(; iIndex < sizeof(acKey); iIndex++)    {        acKey[iIndex] = 0x0;    }    DES_set_key_unchecked((C_Block *)(&acKey[0]), &ks1);    DES_set_key_unchecked((C_Block *)(&acKey[8]), &ks2);    DES_set_key_unchecked((C_Block *)(&acKey[16]), &ks3);    nlen = strlen((char *)in);    memcpy(src, in, nlen);    len = (nlen / 8 + (nlen % 8 ? 1 : 0)) * 8;    ch = 8 - nlen % 8;    memset(src + nlen, ch, (8 - nlen % 8) % 8);    for(iIndex = 0; iIndex < len; iIndex += 8)    {        DES_ecb3_encrypt((C_Block *)(src + iIndex), (C_Block *)(out + iIndex), &ks1, &ks2, &ks3, DES_ENCRYPT);    }    return 0;}int decrypt_3des_ecb3(U8 *in, U8 *out, S8 *key){    DES_key_schedule ks1, ks2, ks3;    S8 acKey[KEY_SIZE];    int iIndex = 0;    int len = 0;    int nlen = 0;    char ch = '\0';    U8 src[1024] = {0};    memset(acKey, 0, sizeof(acKey));    len = strlen((char *)key);    for(iIndex = 0; iIndex < len; iIndex++)    {        acKey[iIndex] = key[iIndex];    }    for(; iIndex < sizeof(acKey); iIndex++)    {        acKey[iIndex] = 0x0;    }    DES_set_key_unchecked((C_Block *)(&acKey[0]), &ks1);    DES_set_key_unchecked((C_Block *)(&acKey[8]), &ks2);    DES_set_key_unchecked((C_Block *)(&acKey[16]), &ks3);    nlen = strlen((char *)in);    memcpy(src, in, nlen);    len = (nlen / 8 + (nlen % 8 ? 1 : 0)) * 8;    ch = 8 - nlen % 8;    memset(src + nlen, ch, (8 - nlen % 8) % 8);    for(iIndex = 0; iIndex < len; iIndex += 8)    {        DES_ecb3_encrypt((C_Block *)(src + iIndex), (C_Block *)(out + iIndex), &ks1, &ks2, &ks3, DES_DECRYPT);    }    return 0;}

test.c

#include <stdio.h>#include <stdlib.h>#include <string.h>#include "basetype.h"extern int decrypt_3des_ecb3(U8 *in, U8 *out, S8 *key);extern int encrypt_3des_ecb3(U8 *in, U8 *out, S8 *key);extern char *base64_encode(unsigned char *bindata, char * base64, int binlength);extern int base64_decode(const char * base64, unsigned char * bindata);int main(void){    S8 message[] = "test123";    S8 gucKey[] = {0x11, 0x22, 0x4F, 0x58, 0x88, 0x10, 0x40, 0x38, 0x28, 0x25, 0x79, 0x51, 0xCB, 0xDD, 0x55, 0x66, 0x77, 0x29, 0x74, 0x98, 0x30, 0x40, 0x36, 0xE2};    S8 outmessage[1024];    S8 tmp[1024];    printf("使用ssl ecb3加密\n");    memset(outmessage, 0, sizeof(outmessage));    encrypt_3des_ecb3((U8 *)message, (U8 *)outmessage, gucKey);    printf("加密后:%s\n", outmessage);    memset(tmp, 0, sizeof(tmp));    base64_encode((U8 *)outmessage, (char *)tmp, strlen((char *)outmessage));    printf("base64_encode:%s\n", tmp);    memset(outmessage, 0, sizeof(outmessage));    base64_decode((const char *)tmp, (unsigned char *)outmessage);    printf("base64_decode:%s\n", outmessage);    memset(tmp, 0, sizeof(tmp));    decrypt_3des_ecb3((U8 *)outmessage, (U8 *)tmp, gucKey);    printf("解密后:%s\n", tmp);    return 0;}