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Compute the fingerprint for ECDH only on demand.

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This also fixes a failed assertion when using a v3 key where the
fingerprint size is not 20.
This commit is contained in:
Werner Koch 2011-02-02 17:40:32 +01:00
parent 4659c923a0
commit 20f429f735
4 changed files with 90 additions and 79 deletions
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7
g10/pkglue.h
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@ -20,14 +20,15 @@
#ifndef GNUPG_G10_PKGLUE_H
#define GNUPG_G10_PKGLUE_H
#include "packet.h" /* For PKT_public_key. */
/*-- pkglue.c --*/
gcry_mpi_t mpi_from_sexp (gcry_sexp_t sexp, const char * item);
int pk_verify (int algo, gcry_mpi_t hash, gcry_mpi_t *data,
gcry_mpi_t *pkey);
int pk_encrypt (int algo, gcry_mpi_t *resarr, gcry_mpi_t data,
const byte fp[MAX_FINGERPRINT_LEN],
gcry_mpi_t *pkey);
PKT_public_key *pk, gcry_mpi_t *pkey);
int pk_check_secret_key (int algo, gcry_mpi_t *skey);
@ -35,7 +36,7 @@ int pk_check_secret_key (int 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
/* */ (int is_encrypt, gcry_mpi_t shared_mpi,
/* */ (int is_encrypt, gcry_mpi_t shared_mpi,
const byte pk_fp[MAX_FINGERPRINT_LEN],
gcry_mpi_t data, gcry_mpi_t *pkey,
gcry_mpi_t *out);