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.

Note

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.

Related Information