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Added in API level 1

Summary: Constants | Inherited Constants | Methods | Inherited Methods

ECPrivateKey

public interface ECPrivateKey
implements ECKey, PrivateKey

java.security.interfaces.ECPrivateKey

The interface to an elliptic curve (EC) private key.

See also:

PrivateKey
ECKey

Summary

Constants
`long`	`serialVersionUID` This constant was deprecated in API level 35. A `serialVersionUID` field in an interface is ineffectual. Do not use; no replacement.

Inherited constants

From interface java.security.PrivateKey

long

serialVersionUID

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

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.

Public methods
`abstract BigInteger`	`getS()` Returns the private value S.

Inherited methods

From interface


        
          java.security.interfaces.ECKey


        abstract


        ECParameterSpec


      getParams()

Returns the domain parameters associated with this key.

From interface


        
          javax.security.auth.Destroyable

`default void`	`destroy()` Destroy this `Object`.
`default boolean`	`isDestroyed()` Determine if this `Object` has been destroyed.

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

Added in API level 1
Deprecated in API level 35

public static final long serialVersionUID

This constant was deprecated in API level 35.
A serialVersionUID field in an interface is ineffectual. Do not use; no replacement.

The class fingerprint that is set to indicate serialization compatibility.

Constant Value: -7896394956925609184 (0x926a5e9fa2435b20)

Public methods

getS

Added in API level 1

public abstract BigInteger getS ()

Returns the private value S.

Returns
`BigInteger`	the private value S.

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Last updated 2026-08-03 UTC.

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