Class HKDFParameterSpec.ExtractThenExpand
java.lang.Object
javax.crypto.spec.HKDFParameterSpec.ExtractThenExpand
- All Implemented Interfaces:
- AlgorithmParameterSpec,- HKDFParameterSpecPREVIEW
- Enclosing interface:
- HKDFParameterSpecPREVIEW
public static final class HKDFParameterSpec.ExtractThenExpand
extends Object
implements HKDFParameterSpecPREVIEW
ExtractThenExpand is a preview API of the Java platform.
Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.
Defines the input parameters of an Extract-then-Expand operation as
 defined in RFC 5869.
- Since:
- 24
- 
Nested Class SummaryNested classes/interfaces declared in interface javax.crypto.spec.HKDFParameterSpecPREVIEWHKDFParameterSpec.BuilderPREVIEW, HKDFParameterSpec.ExpandPREVIEW, HKDFParameterSpec.ExtractPREVIEW, HKDFParameterSpec.ExtractThenExpandPREVIEW
- 
Method SummaryModifier and TypeMethodDescriptionikms()Returns an unmodifiableListof input keying material values in the order they were added.byte[]info()Returns the optional context and application specific information.intlength()Returns the length of the output keying material.salts()Returns an unmodifiableListof salt values in the order they were added.
- 
Method Details- 
ikmsReturns an unmodifiableListof input keying material values in the order they were added. Returns an empty list if there are no input keying material values.Input keying material values added by HKDFParameterSpec.Builder.addIKM(byte[])PREVIEW are converted to aSecretKeySpecobject. Empty arrays are discarded.- Implementation Note:
- An HKDF implementation should concatenate the input keying materials into a single value to be used in the HKDF-Extract phase.
- Returns:
- the unmodifiable Listof input keying material values
 
- 
saltsReturns an unmodifiableListof salt values in the order they were added. Returns an empty list if there are no salt values.Salt values added by HKDFParameterSpec.Builder.addSalt(byte[])PREVIEW are converted to aSecretKeySpecobject. Empty arrays are discarded.- Implementation Note:
- An HKDF implementation should concatenate the salts into a single value to be used in the HKDF-Extract phase.
- Returns:
- the unmodifiable Listof salt values
 
- 
infopublic byte[] info()Returns the optional context and application specific information.- Returns:
- a clone of the optional context and application specific
         information, or nullif not specified
 
- 
lengthpublic int length()Returns the length of the output keying material.- Returns:
- the length of the output keying material
 
 
- 
ExtractThenExpandwhen preview features are enabled.