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/***********************************************************************/
/* */
/* The Cryptokit library */
/* */
/* Xavier Leroy, Collège de France and Inria */
/* */
/* Copyright 2020 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. */
/* */
/***********************************************************************/
#include <stdint.h>
#include <string.h>
#include <caml/mlvalues.h>
#include <caml/memory.h>
#include <caml/alloc.h>
#include "blake2.h"
#define blake2b_val(v) ((struct blake2b *) String_val(v))
CAMLprim value caml_blake2b_init(value hashlen, value key)
{
value ctx = caml_alloc_string(sizeof(struct blake2b));
blake2b_init(blake2b_val(ctx),
Int_val(hashlen),
caml_string_length(key), &Byte_u(key, 0));
return ctx;
}
CAMLprim value caml_blake2b_update(value ctx, value src, value ofs, value len)
{
blake2b_add_data(blake2b_val(ctx),
&Byte_u(src, Long_val(ofs)), Long_val(len));
return Val_unit;
}
CAMLprim value caml_blake2b_final(value ctx, value hashlen)
{
CAMLparam1(ctx);
CAMLlocal1(res);
int len = Int_val(hashlen);
res = caml_alloc_string(len);
blake2b_final(blake2b_val(ctx), len, &Byte_u(res, 0));
CAMLreturn(res);
}
#define blake2s_val(v) ((struct blake2s *) String_val(v))
CAMLprim value caml_blake2s_init(value hashlen, value key)
{
value ctx = caml_alloc_string(sizeof(struct blake2s));
blake2s_init(blake2s_val(ctx),
Int_val(hashlen),
caml_string_length(key), &Byte_u(key, 0));
return ctx;
}
CAMLprim value caml_blake2s_update(value ctx, value src, value ofs, value len)
{
blake2s_add_data(blake2s_val(ctx),
&Byte_u(src, Long_val(ofs)), Long_val(len));
return Val_unit;
}
CAMLprim value caml_blake2s_final(value ctx, value hashlen)
{
CAMLparam1(ctx);
CAMLlocal1(res);
int len = Int_val(hashlen);
res = caml_alloc_string(len);
blake2s_final(blake2s_val(ctx), len, &Byte_u(res, 0));
CAMLreturn(res);
}
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