VictorZhang2014

#include <CommonCrypto/CommonDigest.h>
#include <CommonCrypto/CommonHMAC.h>

@interface ZRCommonCryption : NSObject
/**
 *  加密方式,MAC算法: HmacSHA256
 *
 *  @param plaintext 要加密的文本
 *  @param key       秘钥

VictorZhang2014

/**
 * @brief URLEncode 对字符串URL编码
 *
 * @param str 原字符串
 * @param strSize 原字符串长度(不包括最后的\0)
 * @param result 结果缓冲区的地址
 * @param resultSize 结果缓冲区的大小(包括最后的\0)
 *
 * @return: >0:resultstring 里实际有效的长度

VictorZhang2014

#include <stdio.h>
#include <zlib.h>

/*
 * A good example for using zlib is correlated de/compress file instead of string
 */

void decompress_one_file(char *infilename, char *outfilename);
void compress_one_file(char *infilename, char *outfilename);

VictorZhang2014

bool CompressByGZIP(std::string & uncompressedStr, std::string & compressedStr)
{
    if (uncompressedStr.length() <= 0) {
        return false;
    }
    
    compressedStr.resize(uncompressedStr.size() * 1.5 + 12);
    
    /* Before we can begin compressing (aka "deflating") data using the zlib
     functions, we must initialize zlib. Normally this is done by calling the

VictorZhang2014

@interface MyView : UIView

@property (nonatomic, assign) BOOL isMySelf;

@end

@implementation MyView

- (instancetype)init
{

VictorZhang2014

#include <vector>
#include <codecvt>

std::string VLUtilitiesEncoding::UTF8Encoding(std::string & unencodedStr)
{
    if (unencodedStr.length() <= 0) return "";
    
    std::wstring_convert<std::codecvt_utf8<wchar_t>,wchar_t> conversion;
    std::wstring wbodyStr = conversion.from_bytes(unencodedStr);
    return conversion.to_bytes(wbodyStr);

VictorZhang2014

#include <zlib.h>
#include <sstream>

/** Compress a STL string using zlib with given compression level and return
 * the binary data. 
 https://panthema.net/2007/0328-ZLibString.html
 */
std::string VLUtilitiesEncoding::compress(const std::string & str, int compressionlevel = Z_BEST_COMPRESSION)
{
    z_stream zs;                        // z_stream is zlib's control structure

VictorZhang2014

        /// <summary>
        /// Create public key/private key file, actually, the original certificates was modified to a XML file 
        /// 创建公钥/私钥文件，其实就是把原有的证书的内容修改成XML格式的
        /// </summary>
        public static void CreateCertificateKeyXML(string path, string key)
        {
            try
            {
                FileStream keyxml = new FileStream(path, FileMode.Create);
                StreamWriter sw = new StreamWriter(keyxml);

VictorZhang2014

//This file is encrypt/decrypt data in a default way which can not decrypt/decrypt a chunk of data

using System;
using System.Text;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;

namespace RSA_CSharp_Example
{
    class Program

VictorZhang2014

#import <Foundation/Foundation.h>

@interface RSACryptographic : NSObject

- (void)loadPublicKeyFromFile:(NSString*)derFilePath;
- (void)loadPublicKeyFromData:(NSData*)derData;

- (void)loadPrivateKeyFromFile:(NSString*)p12FilePath password:(NSString*)p12Password;
- (void)loadPrivateKeyFromData:(NSData*)p12Data password:(NSString*)p12Password;