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gpg: Use bytes for ECDH.

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* g10/ecdh.c (extract_secret_x): Use byte * instead of MPI.
(prepare_ecdh_with_shared_point): Use char * instead of MPI.
(pk_ecdh_encrypt_with_shared_point): Likewise.
(pk_ecdh_decrypt): Likewise.
* g10/pkglue.h (pk_ecdh_encrypt_with_shared_point, pk_ecdh_decrypt):
Change declaration.
* g10/pkglue.c (get_data_from_sexp): New.
(pk_encrypt): Use get_data_from_sexp instead of get_mpi_from_sexp.
Follow the change of pk_ecdh_encrypt_with_shared_point.
* g10/pubkey-enc.c (get_it): Follow the change of pk_ecdh_decrypt.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2020-06-09 15:45:51 +09:00
parent e9760eb9e7
commit da5e0bc31b
4 changed files with 64 additions and 60 deletions
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9
g10/pkglue.h
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@ -38,15 +38,18 @@ int pk_check_secret_key (pubkey_algo_t algo, gcry_mpi_t *skey);
gcry_mpi_t pk_ecdh_default_params (unsigned int qbits);
gpg_error_t pk_ecdh_generate_ephemeral_key (gcry_mpi_t *pkey, gcry_mpi_t *r_k);
gpg_error_t pk_ecdh_encrypt_with_shared_point
/* */ (gcry_mpi_t shared_mpi,
/* */ (const char *shared, size_t nshared,
const byte pk_fp[MAX_FINGERPRINT_LEN],
gcry_mpi_t data, gcry_mpi_t *pkey,
const byte *data, size_t ndata,
gcry_mpi_t *pkey,
gcry_mpi_t *out);
int pk_ecdh_encrypt (gcry_mpi_t *resarr, const byte pk_fp[MAX_FINGERPRINT_LEN],
gcry_mpi_t data, gcry_mpi_t * pkey);
int pk_ecdh_decrypt (gcry_mpi_t *result, const byte sk_fp[MAX_FINGERPRINT_LEN],
gcry_mpi_t data, gcry_mpi_t shared, gcry_mpi_t * skey);
gcry_mpi_t data,
const byte *frame, size_t nframe,
gcry_mpi_t * skey);
#endif /*GNUPG_G10_PKGLUE_H*/