keystore

问题 I saw this question (and others) where it is explained how to add a (self-signed) certificate to your keystore/cacerts manually by using the commandline. When doing this, you can set up a secured connection with a server without a signed certificate, if you were given the certificate (.cert file). This is can be useful for testing purposes. I would like to program this, so users don't need to do this manually. The basic concept would be the following: The user has a local copy of the .cert

问题 First off I am new to android Programming, though I am not new to programming itself. What I am, essentially, trying to do is to save my encryption Keys into the Android Keystore. There seems to be a phenomenal lack of such information on GOOGLE, itself. Since there is not much how-to available on the topic I am assuming that it isn't fairly standard knowledge. So can someone please give me a sample code to Initialize the KeyStore(Will be using AES-256). Save multiple keys in a KeyStore

问题 This question already has answers here : Truststore and Keystore Definitions (6 answers) Closed 3 years ago . I have a PKCS#12 file which I considered as a keystore file since it contains one key entry & one certificate entry . In Android, I see people programmatically install keystore in the following way (The code is from Android developer blog): byte[] keystore = . . (read from a PKCS#12 keystore) Intent installIntent = KeyChain.createInstallIntent(); installIntent.putExtra(KeyChain.EXTRA

问题 I have a JKS keystore with certicate signed by CA. I need to export it in PEM format in order to use it with nginx. I need to do it in such a way that it includes the whole chain, so that my client can verify the signature. If I do something like: keytool -exportcert -keystore mykestore.jks -file mycert.crt -alias myalias openssl x509 -out mycert.crt.pem -outform pem -in mycert.crt -inform der It only includes the lowest level certificate. The verification fails: $ openssl s_client -connect

问题 I wanted to list the certificates stored in a PKCS12 keystore. The keystore has the extension .pfx 回答1: If the keystore is PKCS12 type ( .pfx ) you have to specify it with -storetype PKCS12 (line breaks added for readability): keytool -list -v -keystore <path to keystore.pfx> \ -storepass <password> \ -storetype PKCS12 回答2: You can also use openssl to accomplish the same thing: $ openssl pkcs12 -nokeys -info \ -in </path/to/file.pfx> \ -passin pass:<pfx's password> MAC Iteration 2048 MAC

问题 I have an app that I have created that uses the Google Maps and Google Playstore and in debug using Eclipse and the Android SDK the map shows up on the device I am running but when released it doesn't show up on the app. Theres just a big grey screen. AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.eema" android:versionCode="5" android:versionName="5" > <uses-sdk android:minSdkVersion="8" android

问题 I am using java key store to store and retrieve encryption key.It works faster while my key store size is small. But once my key store size is increased than key store operation goes slow. I am working on linux platform, Java version Jdk_1.8. and safenet as provider. 回答1: I have been facing the same issue related to execution speed varies with different operation system platform. Jvm loads key store in memory. And its having hashtable collection as internal storage. Hashtable is synchronized.

问题 I have accidentally deleted my keystore file and now I can't update my apps in Google Play, I only have the SHA1 Fingerprint from it, and I want to know if there is a way to create a new keystore and insert that SHA1 code there, so I can use the keystore to manage my apps again... Is there any way at all to do that? 回答1: The answer is NO . If you have lost your keystore file then you can't update your application further more. You need to generate a new keystore file. For that you need to

问题 When reading in a KeyStore using a FileInputStream as follows, does one need to explicitly close the input-steam to stop system resources being wasted ? FileInputStream fin = new FileInputStream("keystore.jks"); KeyStore keystore = KeyStore.getInstance("JKS"); keystore.load(fin, password); // Is this line needed ?? fin.close(); Is this FileInputStream closed automatically by the load() method or is explicit manually intervention required? 回答1: Is this FileInputStream closed automatically by

问题 When reading in a KeyStore using a FileInputStream as follows, does one need to explicitly close the input-steam to stop system resources being wasted ? FileInputStream fin = new FileInputStream("keystore.jks"); KeyStore keystore = KeyStore.getInstance("JKS"); keystore.load(fin, password); // Is this line needed ?? fin.close(); Is this FileInputStream closed automatically by the load() method or is explicit manually intervention required? 回答1: Is this FileInputStream closed automatically by