Developer Guide and Reference for Intel® Cryptography Primitives Library
ippsHashDRBG_InstantiateTest
Performs known-answer testing the ippsHashDRBG_Instantiate function on demand.
Syntax
IppStatus ippsHashDRBG_InstantiateTest(IppsHashDRBG_EntropyInputCtx* pEntrInputCtxTempBuf,
IppsHashDRBGState* pDrbgCtxTempBuf);
Include Files
ippcp.h
Parameters
pEntrInputCtxTempBuf |
Pointer to a temporarily allocated buffer used to store the Entropy input context. |
pDrbgCtxTempBuf |
Pointer to a temporarily allocated buffer used to store the Hash DRBG state. |
Important
Separate buffers must be allocated for the Entropy input context and the Hash DRBG state and passed to the ippsHashDRBG_InstantiateTest function. Otherwise, the current state of working buffers will be corrupted, resulting in incorrect pseudorandom number sequences.Description
This function initializes pEntrInputCtxTempBuf and pDrbgCtxTempBuf context buffers and then performs known-answer testing the ippsHashDRBG_Instantiate function using the minimum security strength, representative values for the entropy input, nonce and personalization string, and the requested prediction resistance.
Return Values
ippStsNoErr |
Indicates no error. All single operations executed without errors. The values used during the test produce the expected results. |
ippStsNullPtrErr |
pEntrInputCtxTempBuf or pDrbgCtxTempBuf is a NULL pointer. The pointer to the buffer that contains the entropy input is NULL. |
ippStsContextMatchErr |
If the Entropy input context identifier or the Hash DRBG identifier doesn’t match. |
ippStsOutOfRangeErr |
entrInputBufBitsLen < 1. |
ippStsNotSupportedModeErr |
The CPU does not support the RDSEED and/or RDRAND instructions. |
ippStsHashOperationErr |
An error status code was returned during hashing operations. |