Package com.mku.salmon.password

Interface ISalmonPbkdfProvider

All Known Implementing Classes:

SalmonDefaultPbkdfProvider

public interface ISalmonPbkdfProvider

Provides key derivation based on text passwords.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PBKDF_SHA1	Deprecated.
static final String	PBKDF_SHA256	Java Cipher key for SHA256.

Method Summary

Modifier and Type	Method	Description
byte[]	getKey(String password, byte[] salt, int iterations, int outputBytes, PbkdfAlgo pbkdfAlgo)	Get a key derived from a text password.
static String	getPbkdfAlgoString(PbkdfAlgo pbkdfAlgo)	Get the PBKDF java cipher algorigthm string.

Field Details

PBKDF_SHA256

static final String PBKDF_SHA256

Java Cipher key for SHA256. See javax.crypto.SecretKeyFactory.

See Also:

• Constant Field Values

PBKDF_SHA1

@Deprecated
static final String PBKDF_SHA1

Deprecated.

Java Cipher key for SHA1. See javax.crypto.SecretKeyFactory. WARNING! SHA1 is considered insecure! Use PBKDF_SHA256 instead.

See Also:

• Constant Field Values

Method Details

getPbkdfAlgoString

static String getPbkdfAlgoString(PbkdfAlgo pbkdfAlgo)

Get the PBKDF java cipher algorigthm string.

Parameters:

pbkdfAlgo - The PBKDF algorithm to use

Returns:

The java cipher algorithm string. See javax.crypto.SecretKeyFactory.

getKey

byte[] getKey(String password,
 byte[] salt,
 int iterations,
 int outputBytes,
 PbkdfAlgo pbkdfAlgo)

Get a key derived from a text password.

Parameters:

password - The text password.

salt - The salt needs to be at least 24 bytes.

iterations - Iterations to use. Make sure you use a high number according to your hardware specs.

outputBytes - The length of the output key.

pbkdfAlgo - The PBKDF algorithm to use

Returns:

The key.

Throws:

SalmonSecurityException - Thrown if there is a security exception