public interface PublicKey
implements Key



A public key. This interface contains no methods or constants. It merely serves to group (and provide type safety for) all public key interfaces. Note: The specialized public key interfaces extend this interface. See, for example, the DSAPublicKey interface in java.security.interfaces.

Summary

Constants

long serialVersionUID

This constant was deprecated in API level 34. A serialVersionUID field in an interface is ineffectual. Do not use; no replacement.

Inherited constants

From interface java.security.Key

long serialVersionUID

This constant was deprecated in API level 34. A serialVersionUID field in an interface is ineffectual. Do not use; no replacement.

Inherited methods

From interface java.security.Key

abstract String getAlgorithm()

Returns the standard algorithm name for this key.

abstract byte[] getEncoded()

Returns the key in its primary encoding format, or null if this key does not support encoding.

abstract String getFormat()

Returns the name of the primary encoding format of this key, or null if this key does not support encoding.

Constants

serialVersionUID

public static final long serialVersionUID

This constant was deprecated in API level 34.
A serialVersionUID field in an interface is ineffectual. Do not use; no replacement.

The class fingerprint that is set to indicate serialization compatibility with a previous version of the class.

Constant Value: 7187392471159151072 (0x63bebf5f40c219e0)

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Last updated 2026-02-26 UTC.