iOS安全加密：AES-RSA-For-iOS

iOS，安全加密。采用RSA簽名和AES隨機秘鑰加密，AES的隨機秘鑰采用RSA加密。密碼0123456789abcdef?加密字段1加密結果：2yPBJGtAg/AfuvT8idAmzw==

   NSMutableDictionary *resultDic = [[NSMutableDictionary alloc]initWithCapacity:1];
    //step1 對報文數據源排序a->z
    NSMutableArray *sortedArray = [self sortDictionary:EncryptDic];
    //step2 取出排序過后數組的value，拼成string
    NSMutableArray *arrayOfValues = [NSMutableArray arrayWithArray:sortedArray];
    NSString *paramValue = [arrayOfValues componentsJoinedByString:@""];
    //step3 根據RAS私有密鑰簽名業務請求參數值字符串(paramValue),生成基于SHA1的RSA數字簽名
    CRSA *t = [CRSA shareInstance];
    NSString *sign = [t encryptByRsa:paramValue withKeyType:KeyTypePrivate];
    //step4 將簽名放入原報文
    NSMutableDictionary *dicWithSign = [NSMutableDictionary dictionaryWithDictionary:EncryptDic];
    [dicWithSign setObject:sign forKey:@"sign"];
    //step5 隨機生成16位數字和字母組成的
    NSString *merchantAesKey = [LcAESRSA set32bitString:16];
    NSLog(@"\rAES key :%@",merchantAesKey);
    //step6 用16位隨機碼加密含有簽名的報文
    SBJsonWriter * parser = [[SBJsonWriter alloc]init];
    NSString * realdata = [parser stringWithObject:dicWithSign];
    NSString *Stringdata = [NSData AES256EncryptWithPlainText:realdata key:merchantAesKey];
    //step7 使用 RSA 加密 merchantAesKey 生成密鑰密文:
    NSString *Stringencryptkey = [t encryptByRsa:merchantAesKey withKeyType:KeyTypePublic];
    [resultDic setObject:Stringdata forKey:@"data"];
    [resultDic setObject:Stringencryptkey forKey:@"encryptKey"];

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