Class Extraction

Namespace

Kdf108

Assembly

Kdf108.dll

The randomness-extraction step of SP 800-56C Rev. 2 two-step key derivation (§5.1).

public sealed class Extraction

Inheritance

object

Extraction

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

Properties

ExpansionPrf

The PRF the expansion step must use with the extracted key: HMAC with the same hash after HMAC extraction, or AES-128-CMAC after AES-CMAC extraction (the extracted key is 128 bits).

public Prf ExpansionPrf { get; }

Property Value

Prf

Mac

The extraction MAC.

public Prf Mac { get; }

Property Value

Prf

Methods

AesCmac(int, ReadOnlySpan<byte>)

AES-CMAC extraction. The salt is the AES key: exactly keyBits long, or empty for all zeros.

public static Extraction AesCmac(int keyBits, ReadOnlySpan<byte> salt = default)

Parameters

keyBits int

salt ReadOnlySpan<byte>

Returns

Extraction

Hmac(NistHashAlgorithm, ReadOnlySpan<byte>)

HMAC-hash extraction. An empty salt means the default: a block of zero bytes.

public static Extraction Hmac(NistHashAlgorithm hash, ReadOnlySpan<byte> salt = default)

Parameters

hash NistHashAlgorithm

salt ReadOnlySpan<byte>

Returns

Extraction

ToString()

Returns a string that represents the current object.

public override string ToString()

Returns

string

A string that represents the current object.