diff options
Diffstat (limited to 'ssh-rsa.c')
| -rw-r--r-- | ssh-rsa.c | 29 |
1 files changed, 28 insertions, 1 deletions
@@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-rsa.c,v 1.75 2022/10/28 00:43:08 djm Exp $ */ +/* $OpenBSD: ssh-rsa.c,v 1.76 2022/10/28 00:44:17 djm Exp $ */ /* * Copyright (c) 2000, 2003 Markus Friedl <markus@openbsd.org> * @@ -124,6 +124,32 @@ ssh_rsa_serialize_public(const struct sshkey *key, struct sshbuf *b, } static int +ssh_rsa_serialize_private(const struct sshkey *key, struct sshbuf *b, + enum sshkey_serialize_rep opts) +{ + int r; + const BIGNUM *rsa_n, *rsa_e, *rsa_d, *rsa_iqmp, *rsa_p, *rsa_q; + + RSA_get0_key(key->rsa, &rsa_n, &rsa_e, &rsa_d); + RSA_get0_factors(key->rsa, &rsa_p, &rsa_q); + RSA_get0_crt_params(key->rsa, NULL, NULL, &rsa_iqmp); + + if (!sshkey_is_cert(key)) { + /* Note: can't reuse ssh_rsa_serialize_public: e, n vs. n, e */ + if ((r = sshbuf_put_bignum2(b, rsa_n)) != 0 || + (r = sshbuf_put_bignum2(b, rsa_e)) != 0) + return r; + } + if ((r = sshbuf_put_bignum2(b, rsa_d)) != 0 || + (r = sshbuf_put_bignum2(b, rsa_iqmp)) != 0 || + (r = sshbuf_put_bignum2(b, rsa_p)) != 0 || + (r = sshbuf_put_bignum2(b, rsa_q)) != 0) + return r; + + return 0; +} + +static int ssh_rsa_generate(struct sshkey *k, int bits) { RSA *private = NULL; @@ -625,6 +651,7 @@ static const struct sshkey_impl_funcs sshkey_rsa_funcs = { /* .equal = */ ssh_rsa_equal, /* .ssh_serialize_public = */ ssh_rsa_serialize_public, /* .ssh_deserialize_public = */ ssh_rsa_deserialize_public, + /* .ssh_serialize_private = */ ssh_rsa_serialize_private, /* .generate = */ ssh_rsa_generate, /* .copy_public = */ ssh_rsa_copy_public, /* .sign = */ ssh_rsa_sign, |