<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[PTkin的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/PTkin</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; PTkin]]></copyright><item><title><![CDATA[将 Ubuntu 安装到移动硬盘操作实录]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/51376663</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/51376663</guid><author>PTkin</author><pubDate>Wed, 11 May 2016 17:45:06 +0800</pubDate><description><![CDATA[起因事情的起因是这样的，我给自己 2012 年的 Macbook Air 换上了新的 SSD，淘汰了原有的 64G SSD。于是我拥有了一个 64G 大小的固态移动硬盘，用来做什么好呢？做U盘简直浪费了这固态硬盘，而且我已经有三个正在服役的U盘了，其中2个是 USB3.0 接口，传输速度和容量基本够用。那它还能干什么?正好最近需要学习 Linux 下的一些操作]]></description><category></category></item><item><title><![CDATA[DES算法（C++实现）]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/51150661</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/51150661</guid><author>PTkin</author><pubDate>Thu, 14 Apr 2016 12:44:54 +0800</pubDate><description><![CDATA[DES算法的本质就是置换，通过多轮次多变化的置换将64bit的数据加密成密文，从而达到除了暴力破解（遍历密钥）之外没有其他（足够高效的）解法的目的。DES算法的相关原理网上都有比较详尽的描述，理解起来并不困难，只是实现起来稍有点麻烦，一不小心就有可能出错。在我实现的过程中主要参考了网上的一篇 博客，实现之后的结果可以正常加密出结果，解密之后也可以得出原文，同时具有雪崩效应。]]></description><category></category></item><item><title><![CDATA[iOS UITextView]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/51034796</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/51034796</guid><author>PTkin</author><pubDate>Fri, 01 Apr 2016 10:31:34 +0800</pubDate><description><![CDATA[1. 初始化的 UITextView 内部上方有一段空白]]></description><category></category></item><item><title><![CDATA[iOS 面向对象]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/51034351</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/51034351</guid><author>PTkin</author><pubDate>Fri, 01 Apr 2016 09:54:09 +0800</pubDate><description><![CDATA[1. nonatomic、strong 等 property 的修饰符
2. public、private 等访问控制符]]></description><category></category></item><item><title><![CDATA[iOS 基本数据类型与函数]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/51034323</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/51034323</guid><author>PTkin</author><pubDate>Fri, 01 Apr 2016 09:50:35 +0800</pubDate><description><![CDATA[1. NSLog 格式化输出
2. NSInteger 与 int 类型的区别
3. Nil 与 nil 的区别
4. 3个特殊的浮点数值：inf、-inf、nan]]></description><category></category></item><item><title><![CDATA[Machine Learning 学习资源小收集]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50995140</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50995140</guid><author>PTkin</author><pubDate>Mon, 28 Mar 2016 01:47:20 +0800</pubDate><description><![CDATA[Machine Learning 学习资源小收集]]></description><category></category></item><item><title><![CDATA[缓存区溢出攻击实验（3）]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50995130</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50995130</guid><author>PTkin</author><pubDate>Mon, 28 Mar 2016 01:26:54 +0800</pubDate><description><![CDATA[缓存区溢出攻击实验（3）本实验预计分 3 个小实验来做，本文是第三个实验。]]></description><category></category></item><item><title><![CDATA[hihoCoder #1014 : Trie树]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50991323</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50991323</guid><author>PTkin</author><pubDate>Sun, 27 Mar 2016 13:23:24 +0800</pubDate><description><![CDATA[hihoCoder #1014 : Trie树 小白做题系列。]]></description><category></category></item><item><title><![CDATA[iOS 四层架构]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50991074</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50991074</guid><author>PTkin</author><pubDate>Sun, 27 Mar 2016 12:23:32 +0800</pubDate><description><![CDATA[1.  iOS 四层架构]]></description><category></category></item><item><title><![CDATA[缓存区溢出攻击实验（2）]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50968066</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50968066</guid><author>PTkin</author><pubDate>Thu, 24 Mar 2016 01:02:30 +0800</pubDate><description><![CDATA[缓存区溢出攻击实验（2）本实验预计分 3 个小实验来做，本文是第二个实验。]]></description><category></category></item><item><title><![CDATA[缓存区溢出攻击实验（1）]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50968063</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50968063</guid><author>PTkin</author><pubDate>Thu, 24 Mar 2016 01:00:00 +0800</pubDate><description><![CDATA[缓存区溢出攻击实验（1）本实验预计分 3 个小实验来做，本文是第一个实验。]]></description><category></category></item><item><title><![CDATA[信息系统安全威胁]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50927445</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50927445</guid><author>PTkin</author><pubDate>Fri, 18 Mar 2016 23:24:20 +0800</pubDate><description><![CDATA[1. 安全威胁的种类
2. 病毒、蠕虫、木马
3. ARP欺骗、IP源地址欺骗、路由欺骗、TCP会话劫持
4. 拒绝服务攻击、各种泛洪攻击]]></description><category></category></item><item><title><![CDATA[iOS UIView]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50927387</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50927387</guid><author>PTkin</author><pubDate>Fri, 18 Mar 2016 23:15:27 +0800</pubDate><description><![CDATA[frame 与 bounds 的区别]]></description><category></category></item><item><title><![CDATA[利用 OSX 自带的 Automator 批量修改图片大小]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50910658</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50910658</guid><author>PTkin</author><pubDate>Thu, 17 Mar 2016 09:17:22 +0800</pubDate><description><![CDATA[平时自己开发 iOS 应用的时候，图标需要自己寻找（这里插一句题外话我一般在 [Iconfont-阿里巴巴矢量图标库](http://www.iconfont.cn) 上寻找），每次都要自己切图标...什么@2x、@3x，一直用 OSX 自带的预览app进行批量修改大小，觉得甚是麻烦。于是在网上搜了一下，发现其实用 OSX 自带的一个应用 **Automator** 即可完美解决此问题。]]></description><category></category></item><item><title><![CDATA[iOS 项目配置]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50910649</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50910649</guid><author>PTkin</author><pubDate>Thu, 17 Mar 2016 09:16:18 +0800</pubDate><description><![CDATA[增加 Prefix 全局预编译文件]]></description><category></category></item><item><title><![CDATA[有监督学习、无监督学习、分类、聚类、回归等概念]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50910546</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50910546</guid><author>PTkin</author><pubDate>Thu, 17 Mar 2016 09:01:21 +0800</pubDate><description><![CDATA[有监督学习、无监督学习、分类、聚类、回归等概念]]></description><category></category></item><item><title><![CDATA[[搬运]扫盲 HTTPS 和 SSL/TLS 协议]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50563831</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50563831</guid><author>PTkin</author><pubDate>Fri, 22 Jan 2016 19:11:10 +0800</pubDate><description><![CDATA[本文转载自大神编程随想的博客。阅读原文需要科学上网，建议有条件者直接阅读原文，本文转载只为方便墙内阅读与存档学习。原文传送门：扫盲 HTTPS 和 SSL/TLS 协议。文章内容包括HTTPS、SSL/TLS相关的背景知识、HTTPS协议的需求、设计难点 、可靠密钥交换原理等。]]></description><category></category></item><item><title><![CDATA[[搬运]数字证书及 CA 的扫盲介绍]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50563637</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50563637</guid><author>PTkin</author><pubDate>Fri, 22 Jan 2016 18:13:43 +0800</pubDate><description><![CDATA[本文转载自大神编程随想的博客。阅读原文需要科学上网，建议有条件者直接阅读原文，本文转载只为方便墙内阅读与存档学习。原文传送门：数字证书及 CA 的扫盲介绍 @ 编程随想的博客]]></description><category></category></item><item><title><![CDATA[iOS设计规范、切图规范与需求]]></title><link>https://blog.youkuaiyun.com/PTkin/article/details/50561803</link><guid>https://blog.youkuaiyun.com/PTkin/article/details/50561803</guid><author>PTkin</author><pubDate>Fri, 22 Jan 2016 14:28:19 +0800</pubDate><description><![CDATA[《iOS UI与人机交互》
包括iOS设计规范、常用设备尺寸分辨率、图片图标切图需求以及各参考资料等。]]></description><category></category></item></channel></rss>