Developer Reference

Contents

RSA_MB_GetBufferSizePublicKey, RSA_MB_GetBufferSizePrivateKey

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

Syntax

IppStatus ippsRSA_MB_GetBufferSizePublicKey(int*
pBufferSize
, const IppsRSAPublicKeyState*
pKey
);
IppStatus ippsRSA_MB_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 multi-buffer operations, respectively. The functions require any of 8 contexts that are used in a multi-buffer operation.
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_MB_GetBufferSizePublicKey
, indicates an error condition if the public key is not set up.
For
RSA_MB_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 is sufficient to initialize the context for the key in a call to
RSA_InitPrivateKeyType2
.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804