PBKDF2 class

This is an implementation of Password Based Key Derivation Algorithm, PBKDF2 derived from RFC-8081, which internally uses a MAC based Pseudo Random Function (PRF) for key derivation.

PBKDF2 is part of Public-Key Cryptography Standards (PKCS) series published by the RSA Laboratories, specifically PKCS #5 v2.0. It supersedes PBKDF1, which could only produce derived keys up to 160 bits long.

The strength of the generated password using PBKDF2 depends on the number of iterations. The idea is to prevent a brute force attack on the original password by making the key derivation time long. This implementation can be used for both to convert a passphrase and verify it with a derived key.

Inheritance

Constructors

PBKDF2.new(MACHash<HashDigestSink> mac, int iterations, {List<int>? salt, int? keyLength})
Create a PBKDF2 instance with a MAC instance.
factory
PBKDF2.fromSecurity(PBKDF2Security security, {List<int>? salt, MACHash<HashDigestSink>? mac, int? iterations, int? keyLength})
Create a PBKDF2 instance from PBKDF2Security.
factory

Properties

algo → MACHash<HashDigestSink>
The underlying algorithm used as Pseudo Random Function (PRF)
final
derivedKeyLength → int
The length of derived key in bytes
final
hashCode → int
The hash code for this object.
no setterinherited
iterations → int
The number of iterations
final
name → String
The name of this algorithm
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
salt → List<int>
The byte array containing salt
final

Methods

convert(List<int> password) → HashDigest
Generate a derived key from a password
override
hex(List<int> password) → String
Returns the derived key in hexadecimal.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
string(String password, [Encoding? encoding]) → HashDigest
Process the password string and returns derived key as HashDigest.
inherited
toString() → String
A string representation of this object.
inherited
verify(List<int> derivedKey, List<int> password) → bool
Verify if the derivedKey was derived from the original password using the current parameters.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited