static int setkey(struct crypto_tfm *tfm, const u8 *key,
unsigned int keysize)
{
struct salsa20_ctx *ctx = crypto_tfm_ctx(tfm);
salsa20_keysetup(ctx, key, keysize*8, SALSA20_IV_SIZE*8);
return 0;
}
wasp_salsa20_key wasp_make_salsa20_key( wasp_string seed ){
int seedlen = wasp_string_length( seed );
if( seedlen != 32 )
wasp_errf( wasp_es_vm, "si",
"Salsa20 keys must be 32 bytes long", seedlen );
wasp_salsa20_key key = WASP_OBJALLOC( salsa20_key );
salsa20_keysetup( & key->context, wasp_sf_string( seed ) );
return key;
}