diff options
Diffstat (limited to 'g10/pkglue.c')
| -rw-r--r-- | g10/pkglue.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/g10/pkglue.c b/g10/pkglue.c index d72275b81..a83462187 100644 --- a/g10/pkglue.c +++ b/g10/pkglue.c @@ -228,9 +228,13 @@ pk_encrypt (pubkey_algo_t algo, gcry_mpi_t *resarr, gcry_mpi_t data, rc = gpg_error_from_syserror (); else { + int with_djb_tweak_flag = openpgp_oid_is_crv25519 (pkey[0]); + /* Now use the ephemeral secret to compute the shared point. */ rc = gcry_sexp_build (&s_pkey, NULL, - "(public-key(ecdh(curve%s)(q%m)))", + with_djb_tweak_flag ? + "(public-key(ecdh(curve%s)(flags djb-tweak)(q%m)))" + : "(public-key(ecdh(curve%s)(q%m)))", curve, pkey[1]); xfree (curve); /* Put K into a simplified S-expression. */ |