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android.security.keystore
Classes
Exceptions
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Last updated 2025-02-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10 UTC."],[],[],null,["# android.security.keystore\n=========================\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/android/security/keystore/package-summary \"View this page in Java\")\n\nClasses\n-------\n\n|----------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [KeyGenParameterSpec](/reference/kotlin/android/security/keystore/KeyGenParameterSpec) | [AlgorithmParameterSpec](../../../java/security/spec/AlgorithmParameterSpec.html#) for initializing a [KeyPairGenerator](../../../java/security/KeyPairGenerator.html#) or a [KeyGenerator](../../../javax/crypto/KeyGenerator.html#) of the [Android Keystore system](https://developer.android.com/training/articles/keystore.html). |\n| [KeyInfo](/reference/kotlin/android/security/keystore/KeyInfo) | Information about a key from the [Android Keystore system](https://developer.android.com/training/articles/keystore.html). |\n| [KeyProperties](/reference/kotlin/android/security/keystore/KeyProperties) | Properties of [Android Keystore](https://developer.android.com/training/articles/keystore.html) keys. |\n| [KeyProtection](/reference/kotlin/android/security/keystore/KeyProtection) | Specification of how a key or key pair is secured when imported into the [Android Keystore system](https://developer.android.com/training/articles/keystore.html). |\n| [KeyStoreManager](/reference/kotlin/android/security/keystore/KeyStoreManager) | This class provides methods for interacting with keys stored within the [Android Keystore](../../../privacy-and-security/keystore). |\n| [WrappedKeyEntry](/reference/kotlin/android/security/keystore/WrappedKeyEntry) | An [Entry](../../../java/security/KeyStore.Entry.html#) that holds a wrapped key. |\n\nExceptions\n----------\n\n|------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------|\n| [BackendBusyException](/reference/kotlin/android/security/keystore/BackendBusyException) | Indicates a transient error that prevented a key operation from being created. |\n| [KeyExpiredException](/reference/kotlin/android/security/keystore/KeyExpiredException) | Indicates that a cryptographic operation failed because the employed key's validity end date is in the past. |\n| [KeyNotYetValidException](/reference/kotlin/android/security/keystore/KeyNotYetValidException) | Indicates that a cryptographic operation failed because the employed key's validity start date is in the future. |\n| [KeyPermanentlyInvalidatedException](/reference/kotlin/android/security/keystore/KeyPermanentlyInvalidatedException) | Indicates that the key can no longer be used because it has been permanently invalidated. |\n| [SecureKeyImportUnavailableException](/reference/kotlin/android/security/keystore/SecureKeyImportUnavailableException) | Indicates that the Keystore does not support securely importing wrapped keys. |\n| [StrongBoxUnavailableException](/reference/kotlin/android/security/keystore/StrongBoxUnavailableException) | Indicates that an operation could not be performed because the requested security hardware is not available. |\n| [UserNotAuthenticatedException](/reference/kotlin/android/security/keystore/UserNotAuthenticatedException) | Indicates that a cryptographic operation could not be performed because the user has not been authenticated recently enough. |\n| [UserPresenceUnavailableException](/reference/kotlin/android/security/keystore/UserPresenceUnavailableException) | Indicates the condition that a proof of user-presence was requested but this proof was not presented. |"]]
