- int crypto_ahash_export(struct ahash_request * req, void * out);
- reference to the ahash_request handle whose state is exported
- output buffer of sufficient size that can hold the hash state
This function exports the hash state of the ahash_request handle into the caller-allocated output buffer out which must have sufficient size (e.g. by calling crypto_ahash_reqsize).
0 if the export was successful; < 0 if an error occurred