Get Size Of Temporary Buffer

Get the size of the temporary buffer that is required for the ippsLMSVerify function (bytes).

Syntax

IppStatus ippsLMSBufferGetSize (Ipp32s* pSize,
                                Ipp32s maxMessageLength,
                                const IppsLMSAlgoType OIDAlgo);

Include Files

ippcp.h

Parameters

pSize	Pointer to the signature state size.
maxMessageLength	Maximum length of the message that needs to be verified. It can be the maximum length of all messages that can potentially be passed to the verification function.
OIDAlgo	LMS Algorithm ID. It defines a set of LMS parameters. See Supported LMS Algorithms for more information.

Description

This function gets the size of the temporary buffer. The result is stored to *pSize.

Note

Important

You need to enable the IPPCP_PREVIEW_LMS macro to use the feature. For more information, see Preview Features.

Return Values

ippStsNoErr	Indicates no error. All single operations executed without errors. Any other value indicates an error or warning.
ippStsNullPtrErr	`pSize` is a NULL pointer.
ippStsLengthErr	`maxMessageLength < 1` or `maxMessageLength < IPP_MAX_32S - (22 + n)`, where `n` is the LM-OTS parameter.
ippStsBadArgErr	`OIDAlgo.lmotsOIDAlgo < the minimum value for IppsLMOTSAlgo`, `OIDAlgo.lmotsOIDAlgo > the maximum value for IppsLMOTSAlgo`, `OIDAlgo.prmLmsAlg < the minimum value for IppsLMSAlgo` or `OIDAlgo.prmLmsAlg > the maximum value for IppsLMSAlgo`.