at.favre.lib.crypto.bkdf

Class BKDF

java.lang.Object

at.favre.lib.crypto.bkdf.BKDF

public final class BKDF
extends Object

Main entry point of the BKDF API

Method Summary

Modifier and Type	Method and Description
static KeyDerivationFunction	createKdf() Create a fully usable KDF backed by BCrypt to generate key material for e.g.
static KeyDerivationFunction	createKdf(Version version) Create a fully usable KDF backed by BCrypt to generate key material for e.g.
static PasswordHasher	createPasswordHasher() Create a password hasher to use BKDF password hash scheme.
static PasswordHasher	createPasswordHasher(Version version) Create a password hasher to use BKDF password hash scheme with given config version.
static PasswordHasher	createPasswordHasher(Version version, SecureRandom secureRandom) Create a password hasher to use BKDF password hash scheme with given config version.
static PasswordHashUpgrader	createPasswordHashUpgrader() Create a password hasher upgrader, which can be used to upgrade the cost factor of existing password hashes.
static PasswordHashUpgrader	createPasswordHashUpgrader(SecureRandom secureRandom) Create a password hasher upgrader, which can be used to upgrade the cost factor of existing password hashes.
static PasswordHashVerifier	createPasswordHashVerifier() Create a new instance of password hash verifier.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createPasswordHasher

public static PasswordHasher createPasswordHasher()

Create a password hasher to use BKDF password hash scheme. Uses default version schema and SecureRandom

Returns:

new instance

createPasswordHasher

public static PasswordHasher createPasswordHasher(Version version)

Create a password hasher to use BKDF password hash scheme with given config version.

Parameters:

version - used config version

Returns:

new instance

createPasswordHasher

public static PasswordHasher createPasswordHasher(Version version,
                                                  SecureRandom secureRandom)

Create a password hasher to use BKDF password hash scheme with given config version.

Parameters:

version - used config version

secureRandom - to use for generating entropy for e.g. the salt

Returns:

new instance

createPasswordHashVerifier

public static PasswordHashVerifier createPasswordHashVerifier()

Create a new instance of password hash verifier.

This verifies hashes generated by createPasswordHasher().

Returns:

new instance

createPasswordHashUpgrader

public static PasswordHashUpgrader createPasswordHashUpgrader()

Create a password hasher upgrader, which can be used to upgrade the cost factor of existing password hashes.

Returns:

new instance

createPasswordHashUpgrader

public static PasswordHashUpgrader createPasswordHashUpgrader(SecureRandom secureRandom)

Create a password hasher upgrader, which can be used to upgrade the cost factor of existing password hashes.

Parameters:

secureRandom - to use for generating entropy for e.g. the salt

Returns:

new instance

createKdf

public static KeyDerivationFunction createKdf(Version version)

Create a fully usable KDF backed by BCrypt to generate key material for e.g. secret keys.

Parameters:

version - specific protocol version

Returns:

new instance

createKdf

public static KeyDerivationFunction createKdf()

Create a fully usable KDF backed by BCrypt to generate key material for e.g. secret keys.

Returns:

new instance