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Android encryption / decryption using AES [closed]
...stance("SHA1PRNG", "Crypto");
// if (android.os.Build.VERSION.SDK_INT >= 17) {
// sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
// } else {
// sr = SecureRandom.getInstance("SHA1PRNG");
// }
sr.setSeed(keyStar...
淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...
...快速发展，因此大家决定对整个系统进行拆分，最 终V3.0版本的淘宝系统架构图如下：（作者图片已无法打开，请见谅）
从上图可以看出V3.0版 本的系统对整个系统进行了水平和垂直两个方向的拆分，水平方向上，按照功能分为...
对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...功能限制）的同时再增加对外网用户提供squid+认证功能。版本为：
FreeBSD6.2-RELEASE + Squid2.6-STABLE12 。
服务器及网络信息：
外网网卡：em0；外网ip：221.6.117.50/255.255.255.240
内网网卡：em1；内网ip：128.0.0.4/255.255.252.0
架设过程：...
How to find if a native DLL file is compiled as x64 or x86?
...
What Corflags outputs changed in latter versions (Windows SDK 8 or higher). Now instead of 32BIT it has 32BITREQUIRED and 32BITPREFERRED. See description in CorHdr.h located C:\Program Files (x86)\Windows Kits\8.0\Include\um\CorHdr.h. From what I can tell 32BITREQUIRED replaces 3...
What is the difference between JDK and JRE?
...eate new programs.
The JDK is the Java Development Kit, the full-featured SDK for Java. It has everything the JRE has, but also the compiler (javac) and tools (like javadoc and jdb). It is capable of creating and compiling programs.
Usually, if you only care about running Java programs on computer...
When do you use map vs flatMap in RxJava?
...e seen here: http://blog.couchbase.com/why-couchbase-chose-rxjava-new-java-sdk .
Couchbase Java 2.X Client uses Rx to provide asynchronous calls in a convenient way. Since it uses Rx, it has the methods map and FlatMap, the explanation in their documentation might be helpful to understand the gener...
Prompt for user input in PowerShell
...e met. For instance if your script is to set up a target directory for an SDK, you might want to confirm that the user wants to delete the directory if it already exists.
– Jason Goemaat
Mar 9 '15 at 6:11
...
Difference between local and global indexes in DynamoDB
... table:
These are the usual indexes of previous versions of the Amazon AWS SDK.
Global and Local indexes:
These are 'additional' indexes created on a table, in addition to existing hash and range indexes of the table.
Global index is similar to a hash. Range index behave similarly to the range inde...
Android: How can I get the current foreground activity (from a service)?
...pe = AccessibilityServiceInfo.FEEDBACK_GENERIC;
if (Build.VERSION.SDK_INT >= 16)
//Just in case this helps
config.flags = AccessibilityServiceInfo.FLAG_INCLUDE_NOT_IMPORTANT_VIEWS;
setServiceInfo(config);
}
@Override
public void onAccessibili...
iPhone App Icons - Exact Radius?
...m/a/29550364/396005 which has the location of image mask files used in the SDK for rounding icon corners
To add a retina-compatible file, use the same file name and add '@2x'. So if I had a file for my 72x72 icon named icon.png, I would also add a 114x114 PNG file named icon@2x.png to the project/...