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AI_PKCS_OAEPRecode
158 RSA BSAFE Crypto-C Library Reference Manual
a pointer to an A_PKCS_OAEP_PARAMS structure:
The parameters are as follows:
hashFunc
determines the digest function. Currently, it may contain a NULL_PTR or a
pointer to the null-terminated ASCII string,
“sha1”. In both cases SHA1 will become
the digest function.
maskGenFunc
determines the mask generator function. Currently, it may contain a
NULL_PTR or a pointer to the null-terminated ASCII string, “mgf1”. In both cases MGF1
will become the mask generator function.
maskGenFuncUnderlyingAlg
may contain a NULL_PTR or a pointer to the null-terminated
ASCII string,
“sha1”. In both cases SHA1 will become the underlying algorithm.
pSourceFunc
is the method for determining the PKCS #1 v2.0 OAEP parameter, P.
pSourceFunc
may contain a NULL_PTR or a pointer to the null-terminated ASCII string,
“specifiedParameters”. In both cases “specifiedParameters” will become the
pSource method.
If
pSourceFunc
is “specifiedParameters” and if
pSourceParams.len
is 0, then P is
assumed to be empty.
pSourceParams
may also be initialized to the caller's data as in
this example:
hashFuncParams
,
maskGenFuncParams
, and
maskGenFuncUnderlyingAlgParams
are available
to provide for future growth. The caller should initialize these parameters as
ITEM
types as follows:
typedef struct {
unsigned char* hashFunc;
ITEM hashFuncParams;
unsigned char* maskGenFunc;
ITEM maskGenFuncParams;
unsigned char* maskGenFuncUnderlyingAlg;
ITEM maskGenFuncUnderlyingAlgParams;
unsigned char* pSourceFunc;
ITEM pSourceParams;
} A_PKCS_OAEP_PARAMS;
pSourceParams.len = sizeof(dataObject);
pSourceParams.data = &dataObject;