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agent: SSH clean up.

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* agent/command-ssh.c (ssh_receive_key): Use sexp_key_construct for
EdDSA.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2020-05-26 11:53:56 +09:00
parent cbf30c1da9
commit f3d07c634e
1 changed files with 9 additions and 30 deletions
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39
agent/command-ssh.c
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@ -2123,6 +2123,9 @@ ssh_receive_key (estream_t stream, gcry_sexp_t *key_new, int secret,
* we only want the real 32 byte private key - Libgcrypt expects
* this.
*/
/* For now, it's only ed25519 */
curve_name = "Ed25519";
mpi_list = xtrycalloc (3, sizeof *mpi_list);
if (!mpi_list)
{
@ -2229,38 +2232,14 @@ ssh_receive_key (estream_t stream, gcry_sexp_t *key_new, int secret,
goto out;
}
if ((spec.flags & SPEC_FLAG_IS_EdDSA))
err = sexp_key_construct (&key, spec, secret, curve_name, mpi_list,
comment? comment:"");
if (!err)
{
if (secret)
{
err = gcry_sexp_build (&key, NULL,
"(private-key(ecc(curve \"Ed25519\")"
"(flags eddsa)(q %m)(d %m))"
"(comment%s))",
mpi_list[0], mpi_list[1],
comment? comment:"");
}
else
{
err = gcry_sexp_build (&key, NULL,
"(public-key(ecc(curve \"Ed25519\")"
"(flags eddsa)(q %m))"
"(comment%s))",
mpi_list[0],
comment? comment:"");
}
if (key_spec)
*key_spec = spec;
*key_new = key;
}
else
{
err = sexp_key_construct (&key, spec, secret, curve_name, mpi_list,
comment? comment:"");
if (err)
goto out;
}
if (key_spec)
*key_spec = spec;
*key_new = key;
out:
es_fclose (cert);