HashInit¶
Initializes user-supplied memory as IppsHashState or IppsHashState_rmf context for future use.
Syntax¶
IppStatus ippsHashInit(IppsHashState* pCtx, IppHashAlgId hashAlg);
IppStatus ippsHashInit_rmf(IppsHashState_rmf* pCtx, IppsHashMethod* pMethod);
Include Files¶
ippcp.h
Parameters¶
pCtx |
Pointer to the IppsHashState or IppsHashState_rmf context being intialized. |
hashAlg |
Identifier of the hash algorithm. |
pMethod |
Pointer to the hash method. |
Description¶
The function initializes the memory pointed by pCtx as IppsHashState or IppsHashState_rmf context. The hashAlg and pMethod parameters define the hash algorithm to be used in subsequent calls to HashUpdate , HashFinal, or HashGetTag functions. The hashAlg parameter can take one of the values listed in table Supported Hash Algorithms. To get a value for the pMethod parameter, call one of the HashMethod functions.
Note
This function has a reduced memory footprint version. To learn more, see Reduced Memory Footprint Functions.
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. |
ippStsNotSupportedModeErr |
Indicates an error condition if the hashAlg parameter does not match any value of IppHashAlg listed in table Supported Hash Algorithms. |
Related Information