├── app
├── .gitignore
├── src
│ ├── main
│ │ ├── res
│ │ │ ├── values
│ │ │ │ ├── strings.xml
│ │ │ │ ├── colors.xml
│ │ │ │ ├── dimens.xml
│ │ │ │ └── styles.xml
│ │ │ ├── mipmap-hdpi
│ │ │ │ └── ic_launcher.png
│ │ │ ├── mipmap-mdpi
│ │ │ │ └── ic_launcher.png
│ │ │ ├── mipmap-xhdpi
│ │ │ │ └── ic_launcher.png
│ │ │ ├── mipmap-xxhdpi
│ │ │ │ └── ic_launcher.png
│ │ │ ├── mipmap-xxxhdpi
│ │ │ │ └── ic_launcher.png
│ │ │ ├── values-w820dp
│ │ │ │ └── dimens.xml
│ │ │ └── layout
│ │ │ │ └── activity_main.xml
│ │ ├── java
│ │ │ └── com
│ │ │ │ └── xyu
│ │ │ │ └── keystoreencrydemo
│ │ │ │ ├── Application.java
│ │ │ │ ├── MainActivity.java
│ │ │ │ └── EncryUtils.java
│ │ └── AndroidManifest.xml
│ ├── test
│ │ └── java
│ │ │ └── com
│ │ │ └── xyu
│ │ │ └── keystoreencrydemo
│ │ │ └── ExampleUnitTest.java
│ └── androidTest
│ │ └── java
│ │ └── com
│ │ └── xyu
│ │ └── keystoreencrydemo
│ │ └── ExampleInstrumentedTest.java
├── proguard-rules.pro
└── build.gradle
├── settings.gradle
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── .gitignore
├── .idea
├── vcs.xml
├── modules.xml
├── runConfigurations.xml
├── gradle.xml
├── codeStyles
│ └── Project.xml
└── misc.xml
├── README.md
├── gradle.properties
├── gradlew.bat
└── gradlew
/app/.gitignore:
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1 | /build
2 |
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/settings.gradle:
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1 | include ':app'
2 |
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/app/src/main/res/values/strings.xml:
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1 |
2 | KeyStoreEncryDemo
3 |
4 |
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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/zhibuyu/KeyStoreEncryDemo/HEAD/gradle/wrapper/gradle-wrapper.jar
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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhibuyu/KeyStoreEncryDemo/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png
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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhibuyu/KeyStoreEncryDemo/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png
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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhibuyu/KeyStoreEncryDemo/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png
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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhibuyu/KeyStoreEncryDemo/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/zhibuyu/KeyStoreEncryDemo/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
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/.gitignore:
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1 | *.iml
2 | .gradle
3 | /local.properties
4 | /.idea/workspace.xml
5 | /.idea/libraries
6 | .DS_Store
7 | /build
8 | /captures
9 | .externalNativeBuild
10 |
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/.idea/vcs.xml:
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2 |
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6 |
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/app/src/main/res/values/colors.xml:
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1 |
2 |
3 | #3F51B5
4 | #303F9F
5 | #FF4081
6 |
7 |
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/app/src/main/res/values/dimens.xml:
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1 |
2 |
3 | 16dp
4 | 16dp
5 |
6 |
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/README.md:
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1 | # KeyStoreEncryDemo
2 | 使用Android keyStore对数据进行加密（兼容至Android9.0）
3 |
4 | Use the Android keyStore to encrypt data (compatible to Android9.0)
5 |
6 | 博客地址：[https://blog.csdn.net/u010123643/article/details/54632594](https://blog.csdn.net/u010123643/article/details/54632594)
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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Mon Dec 28 10:00:20 PST 2015
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
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/.idea/modules.xml:
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/app/src/main/res/values-w820dp/dimens.xml:
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5 | 64dp
6 |
7 |
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/app/src/main/res/values/styles.xml:
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/app/src/main/java/com/xyu/keystoreencrydemo/Application.java:
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1 | package com.xyu.keystoreencrydemo;
2 |
3 | /**
4 | * Created by xiongyu on 2017/1/20.
5 | */
6 |
7 | public class Application extends android.app.Application {
8 | private static Application application;
9 |
10 | @Override
11 | public void onCreate() {
12 | super.onCreate();
13 | application = this;
14 | }
15 |
16 |
17 | public static Application getApplication() {
18 | return application;
19 | }
20 | }
21 |
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/app/src/test/java/com/xyu/keystoreencrydemo/ExampleUnitTest.java:
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1 | package com.xyu.keystoreencrydemo;
2 |
3 | import org.junit.Test;
4 |
5 | import static org.junit.Assert.*;
6 |
7 | /**
8 | * Example local unit test, which will execute on the development machine (host).
9 | *
10 | * @see Testing documentation
11 | */
12 | public class ExampleUnitTest {
13 | @Test
14 | public void addition_isCorrect() throws Exception {
15 | assertEquals(4, 2 + 2);
16 | }
17 | }
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/.idea/runConfigurations.xml:
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/.idea/gradle.xml:
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/app/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # By default, the flags in this file are appended to flags specified
3 | # in F:\AS\AS_SDK/tools/proguard/proguard-android.txt
4 | # You can edit the include path and order by changing the proguardFiles
5 | # directive in build.gradle.
6 | #
7 | # For more details, see
8 | # http://developer.android.com/guide/developing/tools/proguard.html
9 |
10 | # Add any project specific keep options here:
11 |
12 | # If your project uses WebView with JS, uncomment the following
13 | # and specify the fully qualified class name to the JavaScript interface
14 | # class:
15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
16 | # public *;
17 | #}
18 |
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/gradle.properties:
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1 | # Project-wide Gradle settings.
2 |
3 | # IDE (e.g. Android Studio) users:
4 | # Gradle settings configured through the IDE *will override*
5 | # any settings specified in this file.
6 |
7 | # For more details on how to configure your build environment visit
8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
9 |
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | org.gradle.jvmargs=-Xmx1536m
13 |
14 | # When configured, Gradle will run in incubating parallel mode.
15 | # This option should only be used with decoupled projects. More details, visit
16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
17 | # org.gradle.parallel=true
18 |
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/app/src/main/AndroidManifest.xml:
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21 |
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/app/src/androidTest/java/com/xyu/keystoreencrydemo/ExampleInstrumentedTest.java:
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1 | package com.xyu.keystoreencrydemo;
2 |
3 | import android.content.Context;
4 | import android.support.test.InstrumentationRegistry;
5 | import android.support.test.runner.AndroidJUnit4;
6 |
7 | import org.junit.Test;
8 | import org.junit.runner.RunWith;
9 |
10 | import static org.junit.Assert.*;
11 |
12 | /**
13 | * Instrumentation test, which will execute on an Android device.
14 | *
15 | * @see Testing documentation
16 | */
17 | @RunWith(AndroidJUnit4.class)
18 | public class ExampleInstrumentedTest {
19 | @Test
20 | public void useAppContext() throws Exception {
21 | // Context of the app under test.
22 | Context appContext = InstrumentationRegistry.getTargetContext();
23 |
24 | assertEquals("com.xyu.keystoreencrydemo", appContext.getPackageName());
25 | }
26 | }
27 |
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/app/build.gradle:
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1 | apply plugin: 'com.android.application'
2 |
3 | android {
4 | compileSdkVersion 28
5 | buildToolsVersion '28.0.3'
6 | defaultConfig {
7 | applicationId "com.xyu.keystoreencrydemo"
8 | minSdkVersion 15
9 | targetSdkVersion 28
10 | versionCode 1
11 | versionName "1.0"
12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
13 | }
14 | buildTypes {
15 | release {
16 | minifyEnabled false
17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
18 | }
19 | }
20 | }
21 |
22 | dependencies {
23 | implementation fileTree(include: ['*.jar'], dir: 'libs')
24 | androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
25 | exclude group: 'com.android.support', module: 'support-annotations'
26 | })
27 | testImplementation 'junit:junit:4.12'
28 | implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
29 | }
30 |
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/.idea/misc.xml:
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/app/src/main/java/com/xyu/keystoreencrydemo/MainActivity.java:
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1 | package com.xyu.keystoreencrydemo;
2 |
3 | import android.os.Build;
4 | import android.os.Bundle;
5 | import android.support.annotation.RequiresApi;
6 | import android.support.v7.app.AppCompatActivity;
7 | import android.view.View;
8 | import android.widget.Button;
9 | import android.widget.EditText;
10 | import android.widget.TextView;
11 |
12 | public class MainActivity extends AppCompatActivity {
13 |
14 | private EditText alias_edit, need_deal_word_edit;
15 | private Button encryptBtn, decryptBtn;
16 | private TextView after_encry_tv, after_decrypt_tv;
17 |
18 | @Override
19 | protected void onCreate(Bundle savedInstanceState) {
20 | super.onCreate(savedInstanceState);
21 | setContentView(R.layout.activity_main);
22 | alias_edit = (EditText) findViewById(R.id.alias_edit);
23 | need_deal_word_edit = (EditText) findViewById(R.id.need_deal_word_edit);
24 | need_deal_word_edit = (EditText) findViewById(R.id.need_deal_word_edit);
25 | encryptBtn = (Button) findViewById(R.id.encryptBtn);
26 | decryptBtn = (Button) findViewById(R.id.decryptBtn);
27 | after_encry_tv = (TextView) findViewById(R.id.after_encry_tv);
28 | after_decrypt_tv = (TextView) findViewById(R.id.after_decrypt_tv);
29 | encryptBtn.setOnClickListener(new View.OnClickListener() {
30 | @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR2)
31 | @Override
32 | public void onClick(View v) {
33 | String alias_str = alias_edit.getText().toString().trim();
34 | String need_deal_word_str = need_deal_word_edit.getText().toString().trim();
35 | String after_encry_str =EncryUtils.getInstance().encryptString(need_deal_word_str,alias_str);
36 | after_encry_tv.setText(after_encry_str);
37 | }
38 | });
39 | decryptBtn.setOnClickListener(new View.OnClickListener() {
40 | @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR2)
41 | @Override
42 | public void onClick(View v) {
43 | String alias_str = alias_edit.getText().toString().trim();
44 | String before_decrypt_str = after_encry_tv.getText().toString();
45 | String after_decrypt_str =EncryUtils.getInstance().decryptString(before_decrypt_str, alias_str);
46 | after_decrypt_tv.setText(after_decrypt_str);
47 | }
48 | });
49 | }
50 | }
51 |
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/gradlew.bat:
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1 | @if "%DEBUG%" == "" @echo off
2 | @rem ##########################################################################
3 | @rem
4 | @rem Gradle startup script for Windows
5 | @rem
6 | @rem ##########################################################################
7 |
8 | @rem Set local scope for the variables with windows NT shell
9 | if "%OS%"=="Windows_NT" setlocal
10 |
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 |
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 |
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 |
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 |
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 |
32 | goto fail
33 |
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 |
38 | if exist "%JAVA_EXE%" goto init
39 |
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 |
46 | goto fail
47 |
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 |
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 |
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 |
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 |
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 |
69 | :execute
70 | @rem Setup the command line
71 |
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 |
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 |
90 | :omega
91 |
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/app/src/main/res/layout/activity_main.xml:
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1 |
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25 |
26 |
32 |
33 |
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40 |
46 |
47 |
48 |
52 |
53 |
59 |
60 |
64 |
65 |
71 |
72 |
73 |
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/gradlew:
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1 | #!/usr/bin/env bash
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
10 | DEFAULT_JVM_OPTS=""
11 |
12 | APP_NAME="Gradle"
13 | APP_BASE_NAME=`basename "$0"`
14 |
15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
16 | MAX_FD="maximum"
17 |
18 | warn ( ) {
19 | echo "$*"
20 | }
21 |
22 | die ( ) {
23 | echo
24 | echo "$*"
25 | echo
26 | exit 1
27 | }
28 |
29 | # OS specific support (must be 'true' or 'false').
30 | cygwin=false
31 | msys=false
32 | darwin=false
33 | case "`uname`" in
34 | CYGWIN* )
35 | cygwin=true
36 | ;;
37 | Darwin* )
38 | darwin=true
39 | ;;
40 | MINGW* )
41 | msys=true
42 | ;;
43 | esac
44 |
45 | # Attempt to set APP_HOME
46 | # Resolve links: $0 may be a link
47 | PRG="$0"
48 | # Need this for relative symlinks.
49 | while [ -h "$PRG" ] ; do
50 | ls=`ls -ld "$PRG"`
51 | link=`expr "$ls" : '.*-> \(.*\)$'`
52 | if expr "$link" : '/.*' > /dev/null; then
53 | PRG="$link"
54 | else
55 | PRG=`dirname "$PRG"`"/$link"
56 | fi
57 | done
58 | SAVED="`pwd`"
59 | cd "`dirname \"$PRG\"`/" >/dev/null
60 | APP_HOME="`pwd -P`"
61 | cd "$SAVED" >/dev/null
62 |
63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
64 |
65 | # Determine the Java command to use to start the JVM.
66 | if [ -n "$JAVA_HOME" ] ; then
67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
68 | # IBM's JDK on AIX uses strange locations for the executables
69 | JAVACMD="$JAVA_HOME/jre/sh/java"
70 | else
71 | JAVACMD="$JAVA_HOME/bin/java"
72 | fi
73 | if [ ! -x "$JAVACMD" ] ; then
74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
75 |
76 | Please set the JAVA_HOME variable in your environment to match the
77 | location of your Java installation."
78 | fi
79 | else
80 | JAVACMD="java"
81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
82 |
83 | Please set the JAVA_HOME variable in your environment to match the
84 | location of your Java installation."
85 | fi
86 |
87 | # Increase the maximum file descriptors if we can.
88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
89 | MAX_FD_LIMIT=`ulimit -H -n`
90 | if [ $? -eq 0 ] ; then
91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
92 | MAX_FD="$MAX_FD_LIMIT"
93 | fi
94 | ulimit -n $MAX_FD
95 | if [ $? -ne 0 ] ; then
96 | warn "Could not set maximum file descriptor limit: $MAX_FD"
97 | fi
98 | else
99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 | fi
101 | fi
102 |
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 |
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 | JAVACMD=`cygpath --unix "$JAVACMD"`
113 |
114 | # We build the pattern for arguments to be converted via cygpath
115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 | SEP=""
117 | for dir in $ROOTDIRSRAW ; do
118 | ROOTDIRS="$ROOTDIRS$SEP$dir"
119 | SEP="|"
120 | done
121 | OURCYGPATTERN="(^($ROOTDIRS))"
122 | # Add a user-defined pattern to the cygpath arguments
123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 | fi
126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 | i=0
128 | for arg in "$@" ; do
129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
131 |
132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 | else
135 | eval `echo args$i`="\"$arg\""
136 | fi
137 | i=$((i+1))
138 | done
139 | case $i in
140 | (0) set -- ;;
141 | (1) set -- "$args0" ;;
142 | (2) set -- "$args0" "$args1" ;;
143 | (3) set -- "$args0" "$args1" "$args2" ;;
144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 | esac
151 | fi
152 |
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 | JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 |
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 |
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/app/src/main/java/com/xyu/keystoreencrydemo/EncryUtils.java:
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1 | package com.xyu.keystoreencrydemo;
2 |
3 | import android.os.Build;
4 | import android.security.KeyPairGeneratorSpec;
5 | import android.util.Base64;
6 |
7 |
8 | import java.io.ByteArrayInputStream;
9 | import java.io.ByteArrayOutputStream;
10 | import java.math.BigInteger;
11 | import java.security.KeyPair;
12 | import java.security.KeyPairGenerator;
13 | import java.security.KeyStore;
14 | import java.util.ArrayList;
15 | import java.util.Calendar;
16 |
17 | import javax.crypto.Cipher;
18 | import javax.crypto.CipherInputStream;
19 | import javax.crypto.CipherOutputStream;
20 | import javax.security.auth.x500.X500Principal;
21 |
22 | /**
23 | * Created by xiongyu on 2016/12/1.
24 | * 使用ksyStore加密工具类
25 | */
26 |
27 | public class EncryUtils {
28 | static EncryUtils encryUtilsInstance;
29 | KeyStore keyStore;
30 | public static EncryUtils getInstance() {
31 | synchronized (EncryUtils.class) {
32 | if (null == encryUtilsInstance) {
33 | encryUtilsInstance = new EncryUtils();
34 | }
35 | }
36 | return encryUtilsInstance;
37 | }
38 |
39 | public EncryUtils() {
40 | // initKeyStore();
41 | }
42 |
43 | private void initKeyStore(String alias){
44 | try {
45 | keyStore = KeyStore.getInstance("AndroidKeyStore");
46 | keyStore.load(null);
47 | }
48 | catch(Exception e) {
49 | e.printStackTrace();
50 | }
51 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
52 | createNewKeys(alias);
53 | }
54 | }
55 | private void createNewKeys(String alias){
56 | if(!"".equals(alias)){
57 | try {
58 | // Create new key if needed
59 | if (!keyStore.containsAlias(alias)) {
60 | Calendar start = Calendar.getInstance();
61 | Calendar end = Calendar.getInstance();
62 | end.add(Calendar.YEAR, 1);
63 | KeyPairGeneratorSpec spec = null;
64 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
65 | spec = new KeyPairGeneratorSpec.Builder(Application.getApplication())
66 | .setAlias(alias)
67 | .setSubject(new X500Principal("CN=Sample Name, O=Android Authority"))
68 | .setSerialNumber(BigInteger.ONE)
69 | .setStartDate(start.getTime())
70 | .setEndDate(end.getTime())
71 | .build();
72 | }
73 | KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA", "AndroidKeyStore");
74 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
75 | generator.initialize(spec);
76 | }
77 |
78 | KeyPair keyPair = generator.generateKeyPair();
79 | }
80 | } catch (Exception e) {
81 | e.printStackTrace();
82 | }
83 | }
84 |
85 |
86 | }
87 |
88 |
89 | /**
90 | * 加密方法
91 | * @param needEncryptWord 需要加密的字符串
92 | * @param alias 加密秘钥
93 | * @return
94 | */
95 | public String encryptString(String needEncryptWord, String alias) {
96 | if(!"".equals(alias)&&!"".equals(needEncryptWord)){
97 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
98 | initKeyStore(alias);
99 | }
100 | String encryptStr="";
101 | byte [] vals=null;
102 | try {
103 | KeyStore.PrivateKeyEntry privateKeyEntry = (KeyStore.PrivateKeyEntry)keyStore.getEntry(alias, null);
104 | // RSAPublicKey publicKey = (RSAPublicKey) privateKeyEntry.getCertificate().getPublicKey();
105 | if(needEncryptWord.isEmpty()) {
106 | // Toast.makeText(this, "Enter text in the 'Initial Text' widget", Toast.LENGTH_LONG).show();
107 | return encryptStr;
108 | }
109 |
110 |
111 | Cipher inCipher;
112 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
113 | inCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding", "AndroidOpenSSL");
114 | }else {
115 | //若加密慢则改用上面的代码
116 | inCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
117 | }
118 | // inCipher.init(Cipher.ENCRYPT_MODE, publicKey);
119 | inCipher.init(Cipher.ENCRYPT_MODE, privateKeyEntry.getCertificate().getPublicKey());
120 |
121 | ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
122 | CipherOutputStream cipherOutputStream = new CipherOutputStream(
123 | outputStream, inCipher);
124 | cipherOutputStream.write(needEncryptWord.getBytes("UTF-8"));
125 | cipherOutputStream.close();
126 |
127 | vals = outputStream.toByteArray();
128 | } catch (Exception e) {
129 | e.printStackTrace();
130 | }
131 | return Base64.encodeToString(vals, Base64.DEFAULT);
132 | }
133 | return "";
134 | }
135 |
136 |
137 | public String decryptString(String needDecryptWord, String alias) {
138 | if(!"".equals(alias)&&!"".equals(needDecryptWord)){
139 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
140 | initKeyStore(alias);
141 | }
142 | String decryptStr="";
143 | try {
144 | KeyStore.PrivateKeyEntry privateKeyEntry = (KeyStore.PrivateKeyEntry)keyStore.getEntry(alias, null);
145 | // RSAPrivateKey privateKey = (RSAPrivateKey) privateKeyEntry.getPrivateKey();
146 |
147 | // Cipher output = Cipher.getInstance("RSA/ECB/PKCS1Padding", "AndroidOpenSSL");
148 | Cipher output = Cipher.getInstance("RSA/ECB/PKCS1Padding");
149 | // output.init(Cipher.DECRYPT_MODE, privateKey);
150 | output.init(Cipher.DECRYPT_MODE, privateKeyEntry.getPrivateKey());
151 | CipherInputStream cipherInputStream = new CipherInputStream(
152 | new ByteArrayInputStream(Base64.decode(needDecryptWord, Base64.DEFAULT)), output);
153 | ArrayList values = new ArrayList<>();
154 | int nextByte;
155 | while ((nextByte = cipherInputStream.read()) != -1) {
156 | values.add((byte)nextByte);
157 | }
158 |
159 | byte[] bytes = new byte[values.size()];
160 | for(int i = 0; i < bytes.length; i++) {
161 | bytes[i] = values.get(i).byteValue();
162 | }
163 |
164 | decryptStr = new String(bytes, 0, bytes.length, "UTF-8");
165 | } catch (Exception e) {
166 | e.printStackTrace();
167 | }
168 | return decryptStr;
169 | }
170 | return "";
171 | }
172 | }
173 |
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