QuickCrypt Library

API

SL_OFB_Init

int SL_CRYPTCALL SL_OFB_Init( void* pContext, const void* pIV, unsigned int fs );

Return Value

1 if initializations was successful; otherwise 0.

Parameters

pContext

    [out] Pointer to the memory buffer that will be used as a context.

pIV

    [in] Pointer to the initialization vector.

 fs

    [in] Feedback size in bytes. Set fs to 0 if you want to use the maximum feedback size. This size is the mostly used feedback size.

Remarks

Initializes the context pointed by pContext with the initialization vector pointed by pIV.

Before calling the SL_OFB_Init function, allocate at least CONTEXTSIZE bytes for the context. For example, to perform Blowfish encryption/decryption allocate at least SLC_BLOWFISH_CONTEXTSIZE bytes for the context.

Before calling SL_OFB_Init call the Init function of the encryption algorithm you need to use, passing to it the secret key and the cipher direction (SLC_ENCRYPT only). For example, to perform DES encryption/decryption in OFB mode call SL_DES_Init function before calling SL_OFB_Init. 

Example

OFB Mode API Overview   |   OFB Mode API Functions   |   Useful Links

See Also    SL_OFB_Process