Rng.TestDrbgvs Method

CryptoSys API Library Manual

Rng.TestDrbgvs Method

Tests the random number generator for conformance to NIST SP 800-90A using the relevant test specified in the Deterministic Random Bit Generator Validation System (DRBGVS).

Syntax

[C#]

public static string TestDrbgvs(
	int returnedBitsLen,
	string entropyInput,
	string nonce,
	string personalizationString,
	string additionalInput1,
	string entropyReseed,
	string additionalInputReseed,
	string additionalInput2
)

[VB.NET]

Public Shared Function TestDrbgvs ( _
	returnedBitsLen As Integer, _
	entropyInput As String, _
	nonce As String, _
	personalizationString As String, _
	additionalInput1 As String, _
	entropyReseed As String, _
	additionalInputReseed As String, _
	additionalInput2 As String _
) As String

Parameters

returnedBitsLen: Number of bits to be returned from each call to the generate function in the test
entropyInput: the EntropyInput value in hex format
nonce: the Nonce value in hex format
personalizationString: the PersonalizationString value in hex format
additionalInput1: the first AdditionalInput value in hex format
entropyReseed: the EntropyReseed value in hex format
additionalInputReseed: the AdditionalInputReseed value in hex format
additionalInput2: the second AdditionalInput value in hex format

Return Value

the ReturnedBits as a string in hexadecimal format

Remarks

The test procedure, the input values and the expected output are described in the DRBGVS document. The relevant DRBG mechanism is HMAC_DRBG SHA-512 without prediction resistance. Use the empty string "" to pass a zero-length input. All hex strings must have an even number of characters.