Brightsign Object Reference Manual (FW 5.1) Instrukcja Użytkownika Pobierz pdf (Strona 148)

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roPassKey

This object provides a means for generating keys (hashes) from a password and salt.

Object Creation: The object is passed an associative array that specifies the generation methods and cipher.

CreateObject("roPassKey", parameters As roAssociativeArray)

The associative array should contain the following parameters:

• method: The key derivation method. Currently, only "pbkdf2" can be specified.

• kefn: The pseudorandom function (PRF). Currently, only "hmac-sha256" can be specified.

• keylen: The key length

• iterations: The number of iterations

Interfaces: ifPassKey

The ifPassKey interface provides the following:

• GenerateKey(password As Object, salt As Object) As roByteArray: Generates a key using the

supplied password and salt. The parameters may be passed as either strings or roByteArray instances. The

generated roByteArray instance may contain all possible byte values, including NUL.

• GenerateSalt(length As Integer) As roByteArray: Generates a salt of the specified length. This salt

can be used when calling the GenerateKey() method. The generated roByteArray instance may contain all

possible byte values, including NUL.

Example:

' Create input test data

salt = CreateObject("roByteArray")

1 2 ... 143 144 145 146 147 148 149 150 151 152 153 ... 340 341

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