What is Ethereum keystore

1. They focus on blockchain related instries
and provide solutions such as mine machine hosting, mine operation, digital currency trading, and mine pool services.

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3. Digital signature is used for client verification. If your application needs to access client resources, this is an operation to break out of the sandbox. The client will automatically download the certificate provided by you when loading your application. When the application needs to access client resources, it will match the fingerprint in the certificate with the function package provided by you. Only the fingerprint is the same, To access client resources.

4. The application you write with Android studio or other ide can generate a keystore file. The keystore path that you fill in is the path that you generate the file yourself.

5. There are two ways to generate the Android keystore file: first, generate the Android keystore1 in eclipse, create any Android project (for example: antforandroid) 2, right-click the root directory of antforandroid to pop up the menu - & gt; Android Tools -> Export Signed Application Package-> Next > 3. Create a keystore, input the export location and password of the keystore, remember the password, which will be used the next time using existing keystore. 4. Select "create new keystore" and save it in the project and directory, input the password, and then next5. Fill in the information of the keystore, password of some APK files, service life and organizational unit. Don't forget to fill in the alias and password. 6. Generate the signed APK file, and that's the end. 7. If the next version is released, use the keystore generated earlier to re sign. In this way, the android.keystore generated by the above process is generated in the root directory of the project. 2. The command line generates the bin directory of the keystoredos to enter the JDK, and runs the following command: keytool - genkey - alias android.keystore - keyalg RSA - validity 20000 - keystore android.keystore (- validity 20000 represents the days of validity). After the command is completed, the, The android.keystore view command keytool - List - keystore & quot; will be generated in the bin directory; android.keystore" Enter the set keystore password

6. According to your description:
keystore is a signature
originally, when using eclipse to develop Android, a signature is needed when packaging. This signature records the proct information of developers and development companies, etc! But recently when learning unity, I saw that you can choose not to sign the package! Modify and create the words of the network to know.

7. Java is the key library, used for communication encryption, such as digital signature. Keystore is used to store key pairs, such as public key and private key. Popular will, this thing establishes the connection between developers and app, you are its creator, so you have absolute control over the APK. We can usually use this secret key to achieve:
1. Using a special key signature can obtain some different permissions
2. If APK uses one key signature, the file signed by another key will not be able to install or cover the old version when it is published, which can prevent your installed application from being covered or replaced by a malicious third party

8. There are two main uses of APK signature
1. Using special key signature can obtain some different permissions
2. If APK uses a key signature, the file signed by another key will not be able to install or cover the old version when it is published, which can prevent your installed application from being covered or replaced by a malicious third party

generation method:
enter the bin directory of JDK under DOS, Run the following command:
keytool - genkey - alias android.keystore - keyalg RSA - validity 20000 - keystore android.keystore

(- validity 20000 represents the days of validity). After the command is completed, android.keystore will be generated in bin directory

how to view it? Look at the command
keytool - List - keystore & quot; android.keystore" You can get SHA1 ciphertext and MD5 ciphertext by inputting the keystore password you set

note: MD5 is required when Google map V1 interface applies for apikey, The V2 interface needs SHA1 ciphertext

to obtain the ciphertext, Android app.keystore is required, that is, the key used in packaging
ring eclipse development, the debug.keystore generated by eclipse is used by default
we take debug.keystore as an example to generate SHA1 and MD5
please follow the steps below
1, First, find the directory where the eclipse debug.keystore file is located
by default, it is stored with the virtual machine AVD, and the path under win7 is: C: &# 92; Users\ your_ user_ name\. android\， You can also use windows & gt; in eclipse; Prefs > Android > Build to see the path
the file is called debug.keystore< Then, use keytool to get SHA1 and MD5

1. Keytool is a tool of JDK. After installing JDK, find the installation directory. Keytool is in the bin directory of JDK,
My JDK directory is C: &# 92; Program Files\ Java\ jdk1.6.0_ 21\ Bin
2, run the following command in the CMD command line:
keytool - List - V - keystore & quot; C:\ Users\ your_ user_ name\. android\ debug.keystore" - Alias Android
displays a lot of things, including certificate fingerprints:
SHA1 and MD5
here's an explanation: the above
"C: &# 92; Users\ your_ user_ name\. android\ "Debug. Keystore" is where my debug. Keystore is

9. KEYSTORE_ ABE_ Key library: key library