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Added in API level 1

Summary: Methods

ECField

public interface ECField

java.security.spec.ECField

Known indirect subclasses

ECFieldF2m, ECFieldFp

ECFieldF2m	This immutable class defines an elliptic curve (EC) characteristic 2 finite field.
ECFieldFp	This immutable class defines an elliptic curve (EC) prime finite field.

This interface represents an elliptic curve (EC) finite field. All specialized EC fields must implements this interface.

See also:

ECFieldFp
ECFieldF2m

Summary

Public methods
`abstract int`	`getFieldSize()` Returns the field size in bits.

Public methods

getFieldSize

Added in API level 1

public abstract int getFieldSize ()

Returns the field size in bits. Note: For prime finite field ECFieldFp, size of prime p in bits is returned. For characteristic 2 finite field ECFieldF2m, m is returned.

Returns
`int`	the field size in bits.

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Last updated 2026-08-03 UTC.

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