Developer Reference for Intel® Integrated Performance Primitives Cryptography
Get the size of a temporary scratch buffer for future use in RSA multi-buffer operations.
IppStatus ippsRSA_MB_GetBufferSizePublicKey(int*pBufferSize, const IppsRSAPublicKeyState*pKey);
IppStatus ippsRSA_MB_GetBufferSizePrivateKey(int*pBufferSize, const IppsRSAPrivateKeyState*pKey);
ippcp.h
pBufferSize |
Pointer to the size of a temporary buffer. |
pKey |
Pointer to the RSA key context. |
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.
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. NoteYou 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 . |