Visible to Intel only — GUID: GUID-CE18FB48-99F1-4BFF-9244-45CD041885FF
Visible to Intel only — GUID: GUID-CE18FB48-99F1-4BFF-9244-45CD041885FF
RSA_MB_Verify_PSS_rmf
Performs RSA multi-buffer signature verification using RSASSA-PSS scheme.
Syntax
IppStatus ippsRSA_MB_Verify_PSS_rmf(const Ipp8u*pMsgs[8],const intmsgLens[8],const Ipp8u*pSignts[8],intpIsValid[8], const IppsRSAPublicKeyState*pPubKeys[8], const IppsHashMethod*pMethod, IppStatusstatuses[8], Ipp8u*pBuffer);
Include Files
ippcp.h
Parameters
pMsgs[8] |
Pointer to the array of messages that have been signed. |
msgLens[8] |
Pointer to the array of messages lengths. |
pSignts[8] |
Pointer to the array of signatures to be verified. |
pIsValid |
Pointer to the array of verification results. |
pPubKeys[8] |
Pointer to the array of preliminary initialized IppsRSAPublicKeyState contexts. |
pMethod |
Pointer to the hash method. For details, see HashMethod functions. |
statuses[8] |
Pointer to the array of execution statuses for each performed operation. |
pBuffer |
Pointer to a temporary buffer. The size of the buffer must be not less than the value returned by the RSA_MB_GetBufferSizePublicKey function. |
Description
This function carries out the RSASSA-PSS signature verification scheme defined in PKCS 1.2.1. The function can perform up to 8 verification operations at once.
Specify parameters for each single signature verification operation under the corresponding index in an input array in accordance with the ippsRSAVerify_PSS_rmf function API requirements.
To perform less than 8 operations, set one or more pointers to a context in input context arrays to NULL. In this case, each single operation with the context set to NULL will not be performed, and the function will return ippStsMbWarning . Once the function execution is completed, the statuses array will contain return codes for each single signature verification operation according to the ippsRSAVerify_PSS_rmf return values.
Important
- Sizes of all moduli n in all IppsRSAPublicKeyState contexts in the pPubKeys array must be equal.
Sizes and values of all public exponents e in all IppsRSAPublicKeyState contexts in the pPubKeys array must be equal.
Return Values
ippStsNoErr |
Indicates no error. All single operations executed without errors. Any other value indicates an error or warning. |
ippStsMbWarning |
One or more of performed operations executed with error. Check statuses array for details. |
ippStsNullPtrErr |
Any of the input parameters is a NULL pointer. |
ippStsSizeErr |
Indicates a mismatch between moduli n sizes in the input contexts. |
ippStsBadArgErr |
Indicates a mismatch between exponents e in public keys. |
ippStsContextMatchErr |
No valid keys were found. |
Related Information