NAME

       kcapi_aead_getdata_input - get the pointers into input buffer

SYNOPSIS

       void kcapi_aead_getdata_input(struct kcapi_handle * handle, uint8_t * encdata,
                                     uint32_t encdatalen, int enc, uint8_t ** aad,
                                     uint32_t * aadlen, uint8_t ** data, uint32_t * datalen,
                                     uint8_t ** tag, uint32_t * taglen);

ARGUMENTS

       handle
           [in] cipher handle

       encdata
           [in] data buffer returned by the encryption operation

       encdatalen
           [in] size of the encryption data buffer

       enc
           [in] does output buffer hold encryption or decryption result?

       aad
           [out] AD buffer pointer; when set to NULL, no data pointer is returned

       aadlen
           [out] length of AD; when aad was set to NULL, no information is returned

       data
           [out] pointer to output buffer from AEAD encryption operation when set to NULL, no
           data pointer is returned

       datalen
           [out] length of data buffer; when data was set to NULL, no information is returned

       tag
           [out] tag buffer pointer; when set to NULL, no data pointer is returned

       taglen
           [out] length of tag; when tag was set to NULL, no information is returned

DESCRIPTION

       This function is a service function to the consumer to locate the right ciphertext buffer
       offset holding the authentication tag. In addition, it provides the consumer with the
       length of the tag and the length of the ciphertext.

AUTHOR

       Stephan Mueller <smueller@chronox.de>
           Author.

COPYRIGHT