编写Base64编码函数。 编写Base64解码函数。 以下是一个简单的示例: #include<stdio.h>#include<stdlib.h>#include<string.h>// Base64字符映射表constchar*base64_chars ="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";// Base64编码函数char*base64_encode(constunsignedchar*input,intlength...
C语言实现Base64编解码 Base64原理可以参考:https://www.cnblogs.com/djh777/p/14321174.html 1#include <stdio.h>2#include <stdlib.h>3#include <string.h>4charstr8[9]="00000000";//两个辅助用字符串5charstr6[7]="000000";6char* to_bin8(inta)//转化为八位的二进制数7{8memset(str8,48,9)...
std::stringBase64Encode(constunsignedchar* data,size_tsize){size_tbase64_len = (size +2) /3*4;if(base64_len ==0) {return""; } std::string ret; ret.resize(base64_len);EVP_EncodeBlock((unsignedchar*)ret.data(), data, size);returnstd::move(ret); }boolBase64Decode(conststd::s...
#include <stdio.h>#include <stdlib.h>#include <string.h>// 函数：将二进制数据编码为Base64字符串char* base64_encode(const unsigned char* src, size_t len) { static const char base64_table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; char* out, *pos; ...
你需要有一个Base64编码函数,这个函数将负责将输入的字符串转换为Base64编码的字符串。下面是一个简单的Base64编码函数的实现: c #include <stdio.h> #include <string.h> // Base64编码表 static const char base64_encode_table[] = { 'A', 'B', 'C', 'D', 'E', 'F', 'G'...
下面是一个简单的C语言函数,用于对数据进行Base64编码: #include <stdio.h> #include <stdint.h> #include <string.h> const char base64_chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; void base64_encode(const uint8_t *data, size_t input_length, char *output) { ...
综上可得编码程序如下: intbase64_string(constunsignedchar*src,unsignedchar*dest,unsignedchar*base64,intindex){assert(src);unsignedcharone;unsignedchartwo;unsignedcharthr;unsignedcharfou;size_t len=strlen(src);if(len>=3){one=src[0]>>2;two=((src[0]&0x03)<<4)|(src[1]>>4);thr=((src...
unsignedchar*base64_table="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";/*计算经过base64编码后的字符串长度*/if(str_len%3==0){len=str_len/3*4;}else{len=(str_len/3+1)*4;}res=malloc(sizeof(unsignedchar)*len+1);res[len]='\0';/*以3个8位字符为一组进行编码*/for...
unsignedstringbase64_encode(conststring&str){inti,j;//base64编码表std::string base64_table="ABCDEFGHIJKLMNOPQRSTUVWXYZ""abcdefghijklmnopqrstuvwxyz""0123456789+/";//原始字符串的长度unsignedintstr_len=str.length();//编码的base64的长度intbase64_len=(str_len/3)<<2;//大家一定很疑惑为什么这里有...
#ifndef _BASE64_H #define _BASE64_H #include <stdlib.h> #include <string.h> unsigned char *base64_encode(unsigned char *str); unsigned char *bae64_decode(unsigned char *code); #endif /*base64.c*/ #include "base64.h" unsigned char *base64_encode(unsigned char *str) ...