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/***********************************************************************/
/* */
/* The Cryptokit library */
/* */
/* Xavier Leroy, projet Gallium, INRIA Rocquencourt */
/* */
/* Copyright 2013 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file LICENSE. */
/* */
/***********************************************************************/
/* $Id: stubs-sha1.c 53 2010-08-30 10:53:00Z gildor-admin $ */
#include <string.h>
#include "keccak.h"
#include <caml/mlvalues.h>
#include <caml/memory.h>
#include <caml/alloc.h>
#include <caml/custom.h>
#define Context_val(v) (*((struct SHA3Context **) Data_custom_val(v)))
static void caml_sha3_finalize(value ctx)
{
if (Context_val(ctx) != NULL) {
caml_stat_free(Context_val(ctx));
Context_val(ctx) = NULL;
}
}
static struct custom_operations SHA3_context_ops = {
"fr.inria.caml.cryptokit.SHA3_context",
caml_sha3_finalize,
custom_compare_default,
custom_hash_default,
custom_deserialize_default,
custom_compare_ext_default
};
CAMLprim value caml_sha3_init(value vsize)
{
struct SHA3Context * ctx = caml_stat_alloc(sizeof(struct SHA3Context));
value res =
caml_alloc_custom(&SHA3_context_ops,
sizeof(struct SHA3Context *),
0, 1);
SHA3_init(ctx, Int_val(vsize));
Context_val(res) = ctx;
return res;
}
CAMLprim value caml_sha3_absorb(value ctx,
value src, value ofs, value len)
{
SHA3_absorb(Context_val(ctx), &Byte_u(src, Long_val(ofs)), Long_val(len));
return Val_unit;
}
CAMLprim value caml_sha3_extract(value ctx)
{
CAMLparam1(ctx);
CAMLlocal1(res);
res = alloc_string(Context_val(ctx)->hsiz);
SHA3_extract(Context_val(ctx), &Byte_u(res, 0));
CAMLreturn(res);
}
CAMLprim value caml_sha3_wipe(value ctx)
{
if (Context_val(ctx) != NULL) {
memset(Context_val(ctx), 0, sizeof(struct SHA3Context));
caml_stat_free(Context_val(ctx));
Context_val(ctx) = NULL;
}
return Val_unit;
}
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