” This means your SSL Certificate was able to marry with its private key, and is now ready for binding to its services, export, etc. Note: If your imported SSL certificate and it does not state you have a private key then your private key was either corrupted or never generated on this system. You will have to start from scratch generating a. Generating a KeyStore and TrustStore. In a real working environment, a customer could already have an existing private key and certificate (signed by a known CA). In this case, JKS format cannot be used, because it does not allow the user to import/export the private key through keytool. It is necessary to generate a PKCS12 database.

1. Could Not Generate Key In Keystore Excel
2. Android Generate Keystore
3. Keytool Create Jks Keystore

Converting your Jks keystore to pkcs12/.pfx/.p12 keystore or vise versa: From the Tools menu, choose the Change Keystore Type. In the Change keystore Type sub-menu select one of the available format types you want to convert to. Note: you will not be able to convert a keystore. 30 Configuring Keystores. That password is the one required by ImportPrivateKey to extract the key from the key file and insert the key in the keystore being created. To create a keystore using ImportPrivateKey, complete the following steps. Private key files (meaning private keys not stored in a keystore) must be in PKCS#5/PKCS#8 PEM.

Choose JKS as the type for the new keystore we will be creating as it is the most common and will look like what is seen in the image below: Save the keystore with a keystore password when prompted, just like this: Now that we have a keystore created to hold all our keys and certificates, let us try & create a new key. The value for the -dname parameter is the domain that your server is identified with. The details that are specified here are used to identify the server. This section explains how to create a KeyStore using the JKS format as the database format for both the private key, and the associated certificate or certificate chain. By default, as specified in the java.security file, keytool uses JKS as the format of the key and certificate databases (KeyStore and TrustStores).

This class represents a storage facility for cryptographic keys and certificates.

A KeyStore manages different types of entries. Each type of entry implements the KeyStore.Entry interface. Three basic KeyStore.Entry implementations are provided:

• KeyStore.PrivateKeyEntry

  This type of entry holds a cryptographic PrivateKey, which is optionally stored in a protected format to prevent unauthorized access. It is also accompanied by a certificate chain for the corresponding public key.

  Private keys and certificate chains are used by a given entity for self-authentication. Applications for this authentication include software distribution organizations which sign JAR files as part of releasing and/or licensing software.

• KeyStore.SecretKeyEntry

  This type of entry holds a cryptographic SecretKey, which is optionally stored in a protected format to prevent unauthorized access.

• KeyStore.TrustedCertificateEntry

  This type of entry contains a single public key Certificate belonging to another party. It is called a trusted certificate because the keystore owner trusts that the public key in the certificate indeed belongs to the identity identified by the subject (owner) of the certificate.

  This type of entry can be used to authenticate other parties.

Each entry in a keystore is identified by an 'alias' string. In the case of private keys and their associated certificate chains, these strings distinguish among the different ways in which the entity may authenticate itself. For example, the entity may authenticate itself using different certificate authorities, or using different public key algorithms.

Whether aliases are case sensitive is implementation dependent. In order to avoid problems, it is recommended not to use aliases in a KeyStore that only differ in case.

Whether keystores are persistent, and the mechanisms used by the keystore if it is persistent, are not specified here. This allows use of a variety of techniques for protecting sensitive (e.g., private or secret) keys. Smart cards or other integrated cryptographic engines (SafeKeyper) are one option, and simpler mechanisms such as files may also be used (in a variety of formats).

Typical ways to request a KeyStore object include relying on the default type and providing a specific keystore type.

• To rely on the default type: The system will return a keystore implementation for the default type.
• To provide a specific keystore type: The system will return the most preferred implementation of the specified keystore type available in the environment.

Before a keystore can be accessed, it must be loaded. To create an empty keystore using the above load method, pass null as the InputStream argument.

Once the keystore has been loaded, it is possible to read existing entries from the keystore, or to write new entries into the keystore: Note that although the same password may be used to load the keystore, to protect the private key entry, to protect the secret key entry, and to store the keystore (as is shown in the sample code above), different passwords or other protection parameters may also be used.

Every implementation of the Java platform is required to support the following standard KeyStore type:

• PKCS12

This type is described in the KeyStore section of the Java Cryptography Architecture Standard Algorithm Name Documentation. Consult the release documentation for your implementation to see if any other types are supported.

I get an error trying to generate a key for certain devices. I’m able to reproduce the error on a Samsung Galaxy Note running 4.4.2.

I created a small app to only generate a key by copying the code line by line from the Android developer page https://developer.android.com/training/articles/keystore.html under “Generating a New Private Key.”

The error seems to occur in kpg.generateKeyPair(), inside AndroidKeyPairGenerator.java:

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and in KeyStore.java:

The mBinder.generate() call seems to return 2 which means the keystore is locked?

The error might be somewhat related to this issue with the keystore https://code.google.com/p/android/issues/detail?id=177459&q=could%20not%20generate%20key%20in%20keystore&colspec=ID%20Type%20Status%20Owner%20Summary%20Stars

A few things I’ve tried individually and combinations of the following:
1. Setting encryption required. The result is another error: “Android keystore must be in initialized and unlocked state if encryption is required”
2. Setting a lock screen (pattern, PIN, NONE, password, swipe). Same behavior
3. Programmatically attempting to unlock or reset the credential storage with startActivity(new Intent('com.android.credentials.UNLOCK')); or startActivity(new Intent('com.android.credentials.RESET')); Attempting to unlock shows a “enter password for credential storage” message, in which no reasonable password works, and even clearing the credentials doesn’t help.

While I don’t know the full answer, I can help continue your search. The binder implementation on the other side of mBinder is the native keystore. If I recall fully, it’s behavior is to either 1) support key operations at a software level, or 2) delegate to a OEM-provided keymaster library that (presumably) interfaces to the OEM’s hardware-backed keystore. More info on this here, here, and here.

Note: I’ll forgo SO’s normal policy of pulling the external link content into the answer, since I’m linking you out to three articles that are all >1 page and it seems a bit ridiculous to post a 6-page answer 😉

Answer：

You can use this class . This is works min SDK 18 and above. You can create Android Keystore key , decrypt and encrypt simple text.

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Answer：

If your code is OK then remember that you need to set up a PIN/PW/Fingerprint (Secure unlock) for your device so that the keystore starts functioning. A simple swipe will give such error if you try to generate keypairs.

Could Not Generate Key In Keystore Excel

Answer：

Android Generate Keystore

I think this is the right direction:
Right click on project > Android Tools > Export Signed Application Package
The Export Android Application wizard appears.
Select the project I want to export, click Next.
The Keystore Selection screen appears.

Keytool Create Jks Keystore

Tags: android, javajava