security-and-privacy/gnupg
security-and-privacy/gnupg
1
0
Fork 0
mirror of git://git.gnupg.org/gnupg.git synced 2025-07-03 22:56:33 +02:00
Code Activity

gpg,agent: Clean up around using ECC KEM.

Browse source 
* common/util.h (gnupg_ecc_kem_kdf): Change the last two args.
* common/kem.c (gnupg_ecc_kem_kdf): The last arguments are KDF_PARAMS
and its length.
* agent/pkdecrypt.c (composite_pgp_kem_decrypt): Follow the change.
* g10/pkglue.c (do_encrypt_kem): Follow the change.
* g10/ecdh.c (extract_secret_x, derive_kek): Remove.
(gnupg_ecc_6637_kdf): Remove.
(ecc_build_kdf_params): Rename from build_kdf_params, changing
arguments.
* g10/pkglue.c (do_encrypt_ecdh): Refactor by ecc_build_kdf_params and
gnupg_ecc_kem_kdf.
* g10/pkglue.h (pk_ecdh_decrypt, gnupg_ecc_6637_kdf): Remove.
(ecc_build_kdf_params): New.
* g10/pubkey-enc.c (ecdh_sexp_build): Use ecc_build_kdf_params.

--

GnuPG-bug-id: 7649
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2025-05-23 16:59:38 +09:00
parent 37bec0df7b
commit 681d754043
No known key found for this signature in database
GPG key ID: 640114AF89DE6054
7 changed files with 93 additions and 496 deletions
Download patch file Download diff file Expand all files Collapse all files

5
common/kem.c
View file

@ -156,7 +156,7 @@ gnupg_ecc_kem_kdf (void *kek, size_t kek_len,
int hashalgo, const void *ecdh, size_t ecdh_len,
const void *ecc_ct, size_t ecc_ct_len,
const void *ecc_pk, size_t ecc_pk_len,
gcry_buffer_t *kdf_params)
unsigned char *kdf_params, size_t kdf_params_len)
{
if (kdf_params)
{
@ -168,8 +168,7 @@ gnupg_ecc_kem_kdf (void *kek, size_t kek_len,
param[0] = kek_len;
err = gcry_kdf_open (&hd, GCRY_KDF_ONESTEP_KDF, hashalgo, param, 1,
ecdh, ecdh_len, NULL, 0, NULL, 0,
(char *)kdf_params->data+kdf_params->off,
kdf_params->len);
kdf_params, kdf_params_len);
if (!err)
{
gcry_kdf_compute (hd, NULL);