1. Update docs

2. Remove zip module

doc/source/security/secureHash.md

@@ -12,7 +12,7 @@ It’s main advantages are that it is fast, and easy to implement. But it also m
 ## Making MD5 more secure using salt
 >Wikipedia defines salt as **random data that are used as an additional input to a one-way function that hashes a password or pass-phrase**. In more simple words, salt is some randomly generated text, which is appended to the password before obtaining hash.
 
-**Important**: We always need to use a `SecureRandom` to create good salts, and in Java, the `SecureRandom` class supports the `SHA1PRNG` pseudo random number generator algorithm, and we can take advantage of it.
+**Important**: We always need to use a [SecureRandom](https://docs.oracle.com/javase/6/docs/api/java/security/SecureRandom.html) to create good salts, and in Java, the `SecureRandom` class supports the `SHA1PRNG` pseudo random number generator algorithm, and we can take advantage of it.
 
 `SHA1PRNG` algorithm is used as cryptographically strong pseudo-random number generator based on the `SHA-1` message digest algorithm. Note that if a seed is not provided, it will generate a **seed** from a true random number generator (**TRNG**).
 
@@ -29,6 +29,14 @@ Java has 4 implementations of SHA algorithm. They generate the following length
 - `SHA-384` (Stronger than `SHA-256` – 384 bits Hash)
 - `SHA-512` (Stronger than `SHA-384` – 512 bits Hash)
 
+A longer hash is more difficult to break. That’s the core idea.
+
+To get any implementation of algorithm, pass it as parameter to `MessageDigest`. e.g.
+```
+MessageDigest md = MessageDigest.getInstance("SHA-1");
+//OR
+MessageDigest md = MessageDigest.getInstance("SHA-256");
+```
 `SHATest`
 
 ## Advanced password security using PBKDF2WithHmacSHA1 algorithm

doc/source/utils/index.rst

@@ -5,4 +5,5 @@ Utils
     :maxdepth: 3
     :numbered: 0
 
+    zip
     gson/index

utils/zip/README.md → doc/source/utils/zip.md

@@ -1,7 +1,4 @@
-# zip
-
-## Runtime Environment
-- [Java 7](http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html)
+# Zip
 
 ## Short & Quick introduction
 ### 数据压缩概述
@@ -56,5 +53,5 @@ public void setTime(long time) | 设置条目的修改时间
 ### 如何对JAR文件进行操作呢？
 Java档案文件（JAR）格式是基于标准的ZIP文件格式，并附有可选择的文件清单列表。可以使用`java.util.jar`包。
 
-## Links
+## References
 - [利用JAVA API函数实现数据的压缩与解压缩](https://www.ibm.com/developerworks/cn/java/l-compress/index.html)

utils/README.md

@@ -2,7 +2,7 @@
 
 ## Contents
 - [hyperic-sigar](hyperic-sigar/README.md)
-- [zip](zip/README.md)
+- [Zip](../doc/source/utils/zip.md)
 
 ### Gson
 - [Gson](../doc/source/utils/gson/gson.md)

utils/pom.xml

@@ -13,7 +13,6 @@
 
 	<modules>
 		<module>hyperic-sigar</module>
-		<module>zip</module>
 	</modules>
 
 	<dependencies>

utils/zip/src/main/java/com/ibm/zip/UnZip.java → utils/src/main/java/t5750/utils/zip/UnZip.java

@@ -1,4 +1,4 @@
-package com.ibm.zip;
+package t5750.utils.zip;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;

utils/zip/src/main/java/com/ibm/zip/UnZip2.java → utils/src/main/java/t5750/utils/zip/UnZip2.java

@@ -1,4 +1,4 @@
-package com.ibm.zip;
+package t5750.utils.zip;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;

utils/zip/src/main/java/com/ibm/zip/Zip.java → utils/src/main/java/t5750/utils/zip/Zip.java

@@ -1,4 +1,4 @@
-package com.ibm.zip;
+package t5750.utils.zip;
 
 import java.io.*;
 import java.util.zip.ZipEntry;

utils/zip/src/main/java/com/ibm/zip/checksum/UnZip.java → utils/src/main/java/t5750/utils/zip/checksum/UnZip.java

@@ -1,4 +1,4 @@
-package com.ibm.zip.checksum;
+package t5750.utils.zip.checksum;
 
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;

utils/zip/src/main/java/com/ibm/zip/checksum/Zip.java → utils/src/main/java/t5750/utils/zip/checksum/Zip.java

@@ -1,4 +1,4 @@
-package com.ibm.zip.checksum;
+package t5750.utils.zip.checksum;
 
 import java.io.*;
 import java.util.zip.Adler32;

utils/zip/src/main/java/com/ibm/zip/employee/Employee.java → utils/src/main/java/t5750/utils/zip/employee/Employee.java

@@ -1,4 +1,4 @@
-package com.ibm.zip.employee;
+package t5750.utils.zip.employee;
 
 import java.io.Serializable;
 

utils/zip/src/main/java/com/ibm/zip/employee/ReadEmployee.java → utils/src/main/java/t5750/utils/zip/employee/ReadEmployee.java

@@ -1,4 +1,4 @@
-package com.ibm.zip.employee;
+package t5750.utils.zip.employee;
 
 import java.io.FileInputStream;
 import java.io.ObjectInputStream;

utils/zip/src/main/java/com/ibm/zip/employee/SaveEmployee.java → utils/src/main/java/t5750/utils/zip/employee/SaveEmployee.java

@@ -1,4 +1,4 @@
-package com.ibm.zip.employee;
+package t5750.utils.zip.employee;
 
 import java.io.FileOutputStream;
 import java.io.ObjectOutputStream;