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common:kem: Factor out a function to retrieve ECC parameters.

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* common/util.h (struct gnupg_ecc_params, gnupg_get_ecc_params): New.
(ECC_SCALAR_LEN_MAX, ECC_POINT_LEN_MAX, ECC_HASH_LEN_MAX): New.
* agent/pkdecrypt.c (ecc_extract_pk_from_key, ecc_extract_sk_from_key):
Follow the change of gnupg_get_ecc_params.
(ecc_raw_kem, ecc_pgp_kem_decap, composite_pgp_kem_decrypt): Likewise.
(ecc_kem_decrypt): Likewise.
(get_ecc_params): Move to...
* common/kem.c (gnupg_get_ecc_params): ... here
* g10/pkglue.c (ECC_POINT_LEN_MAX, ECC_HASH_LEN_MAX): Remove duplicates.

--

GnuPG-bug-id: 7649
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2025-07-03 15:45:52 +09:00
parent a354018bf3
commit 5e623b71d5
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GPG key ID: 640114AF89DE6054
4 changed files with 104 additions and 112 deletions
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5
g10/pkglue.c
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@ -33,11 +33,6 @@
#include "options.h"
/* Maximum buffer sizes required for ECC KEM. */
#define ECC_POINT_LEN_MAX (1+2*66)
#define ECC_HASH_LEN_MAX 64
/* FIXME: Better change the function name because mpi_ is used by
gcrypt macros. */
gcry_mpi_t