Developer Reference

Contents

RSA_GetBufferSizePublicKey, RSA_GetBufferSizePrivateKey

Get the size of a temporary scratch buffer for future use in RSA operations.

Syntax

IppStatus ippsRSA_GetBufferSizePublicKey(int*
pBufferSize
, const IppsRSAPublicKeyState*
pKey
);
IppStatus ippsRSA_GetBufferSizePrivateKey(int*
pBufferSize
, const IppsRSAPrivateKeyState*
pKey
);
Include Files
ippcp.h
Parameters
pBufferSize
Pointer to the size of a temporary buffer.
pKey
Pointer to the RSA key context.
Description
These functions get the size of a temporary buffer for future use in public- or private-key RSA operations, respectively.
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error or warning.
ippStsNullPtrErr
Indicates an error condition if any of the specified pointers is
NULL
.
ippStsContextMatchErr
Indicates an error condition if any of the context parameters does not match the operation.
ippStsIncompleteContextErr
For
RSA_GetBufferSizePublicKey
, indicates an error condition if the public key is not set up.
For
RSA_GetBufferSizePrivateKeyType1
, indicates an error condition if the type 1 private key is not set up.
You can set up the public key or type 1 private key in a call to
RSA_SetPublicKey
or
RSA_SetPrivateKeyType1
, respectively. For the
RSA_GetBufferSizePrivateKeyType2
function, it suffices to initialize the context for the key in a call to
RSA_InitPrivateKeyType2
.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.