RSA_MB_Decrypt¶
Performs the RSA multi-buffer decryption operation.
Syntax¶
Note
This API is deprecated from Intel® IPP Cryptography and is removed since 2021.2 release. It is recommended to switch to Crypto MB library. If you have any concerns, open a ticket and provide feedback at Intel ® online support center.
IppStatus ippsRSA_MB_Decrypt(const IppsBigNumState*pCtxts[8], IppsBigNumState*pPtxts[8], const IppsRSAPrivateKeyState*pKeys[8], IppStatusstatuses[8], Ipp8u*pBuffer);
Include Files¶
ippcp.h
Parameters¶
pPtxts[8] |
Pointer to the IppsBigNumState context of the plaintext for each decryption operation. |
pCtxts[8] |
Pointer to the IppsBigNumState context of the ciphertext for each decryption operation. |
pKeys[8] |
Pointer to the IppsRSAPublicKeyState context for each decryption operation. |
statuses |
Pointer to the IppStatus array that contains statuses for each decryption operation. |
pScratchBuffer |
Pointer to the temporary buffer of size not less than returned by the RSA_MB_GetBufferSizePrivateKey function. |
Description¶
The function performs the RSA multi-buffer decryption operation, which is the RSA operation on a private key. The function can perform up to 8 single RSA decryption operations at once.
Each RSA decryption operation requires valid parameters that follow the ippsRSA_Decrypt syntax. After execution, the statuses array contains statuses for each single RSA decryption operation returned by ippsRSA_Decrypt .
To perform less than 8 operations, set one or more contexts in arrays to NULL. In this case, all single operations with NULL in parameters are not performed, and the function returns ippStsMbWarning .
Note
Important
Sizes of all moduli n in all the IppsRSAPrivateKeyState contexts
in the pKeys array must be equal. Types of RSA private keys must be
the same.
Return Values¶
ippStsNoErr |
Indicates no error. All single operations are executed without errors. Any other value indicates an error or warning. |
ippStsNullPtrErr |
Indicates an error condition if any of the specified pointers is NULL . |
ippStsSizeErr |
Indicates an error condition if the size of modulus |
ippStsBadArgErr |
Indicates an error condition if types of RSA private keys are not the same. |
ippStsMbWarning |
Indicates a warning when one or more performed operations are executed with errors. For details, check the statuses array. |
Related Information