intellij-sdk-code-samples/basics/persisting_sensitive_data.md
2020-04-22 15:02:27 +02:00

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---
title: Persisting Sensitive Data
---
<!-- Copyright 2000-2020 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
The Credentials Store API allows you to securely store sensitive user data, like passwords, server URLs, etc.
## How to Use
Use [`PasswordSafe`](upsource:///platform/platform-api/src/com/intellij/ide/passwordSafe/PasswordSafe.kt) to work with credentials.
### Retrieve Stored Credentials
```java
String key = null; // e.g. serverURL, accountID
CredentialAttributes credentialAttributes = createCredentialAttributes(key);
Credentials credentials = PasswordSafe.getInstance().get(credentialAttributes);
if (credentials != null) {
String password = credentials.getPasswordAsString();
}
// or get password only
String password = PasswordSafe.getInstance().getPassword(credentialAttributes);
private CredentialAttributes createCredentialAttributes(String key) {
return new CredentialAttributes(CredentialAttributesKt.generateServiceName("MySystem", key));
}
```
### Store Credentials
```java
CredentialAttributes credentialAttributes = createCredentialAttributes(serverId); // see previous sample
Credentials credentials = new Credentials(username, password);
PasswordSafe.getInstance().set(credentialAttributes, credentials);
```
To remove stored credentials, pass `null` for `credentials` parameter.
## Storage
Default storage format depends on OS.
| OS | Storage |
|---------|---------|
| Windows | File in [KeePass](https://keepass.info) format |
| macOS | Keychain using [Security Framework](https://developer.apple.com/documentation/security/keychain_services) |
| Linux | [Secret Service API](https://specifications.freedesktop.org/secret-service/latest/) using [libsecret](https://wiki.gnome.org/Projects/Libsecret) |
Users can override the default behavior in Preferences \| Appearance & Behavior \| System Settings \| Passwords.