This function initializes a a XSecure_Rsa structure with the default values required for operating the RSA cryptographic engine.
Note: Modulus, ModExt and ModExpo are part of partition signature when authenticated boot image is generated by bootgen, else the all of them should be extracted from the key
Prototype
int XSecure_RsaInitialize(XSecure_Rsa *InstancePtr, u8 *Mod, u8 *ModExt, u8 *ModExpo);Parameters
The following table lists the XSecure_RsaInitialize function arguments.
| Name | Description |
|---|---|
| InstancePtr | - Pointer to the XSecure_Rsa instance |
| Mod | - A character Pointer which contains the key Modulus of key size |
| ModExt |
- A Pointer to the pre-calculated exponential (R^2 Mod N) value
|
| ModExpo | - Pointer to the buffer which contains key exponent |
Returns
- XST_SUCCESS - If initialization was successful
- XSECURE_RSA_INVALID_PARAM - On invalid arguments