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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
...oach would be to check how many digits are output by Integer.toHexString() and add a leading zero to each byte if needed. Something like this:
public static String toHexString(byte[] bytes) {
StringBuilder hexString = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
...
What is base 64 encoding used for?
I've heard people talking about "base 64 encoding" here and there. What is it used for?
18 Answers
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Git status ignore line endings / identical files / windows & linux environment / dropbox / mled
...t setting on some work project. On work I must use windows, home I use mac and linux. Before this I had the same problem as you, after that setting everything was ok.
– Saša Šijak
Dec 12 '13 at 15:26
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Hash function that produces short hashes?
Is there a way of encryption that can take a string of any length and produce a sub-10-character hash? I want to produce reasonably unique ID's but based on message contents, rather than randomly.
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...展：打造个性化酷炫的底部导航条
【UI】ScrollArrangementHandler 滚动布局管理器拓展：同一屏幕内页面切换效果
【UI】AlphaDialog 扩展：自定义对话框
【UI】Flubbie 拓展：为App添加魔法动画
【UI】SideBar 拓展：实现App的侧边栏效...
How can I safely encode a string in Java to use as a filename?
...ng from an external process. I want to use that String to make a filename, and then write to that file. Here's my code snippet to do this:
...
Difference between Hashing a Password and Encrypting it
... (well, a mapping). It's irreversible, you apply the secure hash algorithm and you cannot get the original string back. The most you can do is to generate what's called "a collision", that is, finding a different string that provides the same hash. Cryptographically secure hash algorithms are design...
程序员之网络安全系列（一）：为什么要关注网络安全？ - 更多技术 - 清泛网...
...候不一定做出了正确地选择，直到最近有的程序员说密码MD5存储了，就一定是安全的，这让我感觉了害怕，而且我看有的系统也真的只是MD5了一下，所以我开始决定学点安全的常识，记录一点“大家” 常用的程序安全知识, 在这...
【持续更新】App Inventor 2 中文拓展一览 - App Inventor 2 中文网 - 清泛...
...) Iot 专题
【FTP】App Inventor 2 FTP 上传下载全方案总结
【MD5、密码安全】Encrypt.Security 安全性扩展：MD5哈希，SHA1和SHA256哈希，AES加密/解密，RSA加密/解密，BASE64编码/解码
【AES加解密】MareshaAES 拓展：AES加解密算法
【二进制】Urs...
安全工具将程序标记为病毒 - App应用开发 - 清泛IT社区，为创新赋能！
...申诉处理结果如下：
申诉APK 名称：AI数据管理
文件MD5：40234705254d22e7b8a891a9a8ce6ea1
申诉结果：申诉不通过
具体详情：该软件存在安装后未经允许私自发送短信定制扣费业务的风险行为，腾讯手机管家继续提示风险，请自...