openssh/openssh-8.7p1-evp-pkcs11.patch

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diff --color -ru -x regress -x autom4te.cache -x '*.o' -x '*.lo' -x Makefile -x config.status -x configure~ -x configure.ac openssh-8.7p1/ssh-ecdsa.c openssh-8.7p1-patched/ssh-ecdsa.c
--- openssh-8.7p1/ssh-ecdsa.c 2023-05-24 09:39:45.002631174 +0200
+++ openssh-8.7p1-patched/ssh-ecdsa.c 2023-05-24 09:09:34.400853951 +0200
@@ -74,8 +74,18 @@
if ((hash_alg = sshkey_ec_nid_to_hash_alg(key->ecdsa_nid)) == -1)
return SSH_ERR_INTERNAL_ERROR;
- if ((ret = ssh_create_evp_ec(key->ecdsa, key->ecdsa_nid, &pkey)) != 0)
- return ret;
+#ifdef ENABLE_PKCS11
+ if (is_ecdsa_pkcs11(key->ecdsa)) {
+ if ((pkey = EVP_PKEY_new()) == NULL ||
+ EVP_PKEY_set1_EC_KEY(pkey, key->ecdsa) != 1)
+ return SSH_ERR_ALLOC_FAIL;
+ } else {
+#endif
+ if ((ret = ssh_create_evp_ec(key->ecdsa, key->ecdsa_nid, &pkey)) != 0)
+ return ret;
+#ifdef ENABLE_PKCS11
+ }
+#endif
ret = sshkey_calculate_signature(pkey, hash_alg, &sigb, &len, data,
datalen);
EVP_PKEY_free(pkey);
diff --color -ru -x regress -x autom4te.cache -x '*.o' -x '*.lo' -x Makefile -x config.status -x configure~ -x configure.ac openssh-8.7p1/ssh-pkcs11.c openssh-8.7p1-patched/ssh-pkcs11.c
--- openssh-8.7p1/ssh-pkcs11.c 2023-05-24 09:39:44.950630607 +0200
+++ openssh-8.7p1-patched/ssh-pkcs11.c 2023-05-24 09:33:59.153866357 +0200
@@ -775,8 +775,24 @@
return (0);
}
+
+int
+is_ecdsa_pkcs11(EC_KEY *ecdsa)
+{
+ if (EC_KEY_get_ex_data(ecdsa, ec_key_idx) != NULL)
+ return 1;
+ return 0;
+}
#endif /* HAVE_EC_KEY_METHOD_NEW */
+int
+is_rsa_pkcs11(RSA *rsa)
+{
+ if (RSA_get_ex_data(rsa, rsa_idx) != NULL)
+ return 1;
+ return 0;
+}
+
/* remove trailing spaces */
static void
rmspace(u_char *buf, size_t len)
diff --color -ru -x regress -x autom4te.cache -x '*.o' -x '*.lo' -x Makefile -x config.status -x configure~ -x configure.ac openssh-8.7p1/ssh-pkcs11-client.c openssh-8.7p1-patched/ssh-pkcs11-client.c
--- openssh-8.7p1/ssh-pkcs11-client.c 2023-05-24 09:39:44.950630607 +0200
+++ openssh-8.7p1-patched/ssh-pkcs11-client.c 2023-05-24 09:31:16.139092673 +0200
@@ -225,8 +225,36 @@
static RSA_METHOD *helper_rsa;
#ifdef HAVE_EC_KEY_METHOD_NEW
static EC_KEY_METHOD *helper_ecdsa;
+
+int
+is_ecdsa_pkcs11(EC_KEY *ecdsa)
+{
+ const EC_KEY_METHOD *meth;
+ ECDSA_SIG *(*sign_sig)(const unsigned char *dgst, int dgstlen,
+ const BIGNUM *kinv, const BIGNUM *rp, EC_KEY *eckey) = NULL;
+
+ meth = EC_KEY_get_method(ecdsa);
+ EC_KEY_METHOD_get_sign(meth, NULL, NULL, &sign_sig);
+ if (sign_sig == ecdsa_do_sign)
+ return 1;
+ return 0;
+}
#endif /* HAVE_EC_KEY_METHOD_NEW */
+int
+is_rsa_pkcs11(RSA *rsa)
+{
+ const RSA_METHOD *meth;
+ int (*priv_enc)(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding) = NULL;
+
+ meth = RSA_get_method(rsa);
+ priv_enc = RSA_meth_get_priv_enc(meth);
+ if (priv_enc == rsa_encrypt)
+ return 1;
+ return 0;
+}
+
/* redirect private key crypto operations to the ssh-pkcs11-helper */
static void
wrap_key(struct sshkey *k)
diff --color -ru -x regress -x autom4te.cache -x '*.o' -x '*.lo' -x Makefile -x config.status -x configure~ -x configure.ac openssh-8.7p1/ssh-pkcs11.h openssh-8.7p1-patched/ssh-pkcs11.h
--- openssh-8.7p1/ssh-pkcs11.h 2023-05-24 09:39:44.950630607 +0200
+++ openssh-8.7p1-patched/ssh-pkcs11.h 2023-05-24 09:36:49.055714975 +0200
@@ -39,6 +39,11 @@
u_int32_t *);
#endif
+#ifdef HAVE_EC_KEY_METHOD_NEW
+int is_ecdsa_pkcs11(EC_KEY *ecdsa);
+#endif
+int is_rsa_pkcs11(RSA *rsa);
+
#if !defined(WITH_OPENSSL) && defined(ENABLE_PKCS11)
#undef ENABLE_PKCS11
#endif
diff --color -ru -x regress -x autom4te.cache -x '*.o' -x '*.lo' -x Makefile -x config.status -x configure~ -x configure.ac openssh-8.7p1/ssh-rsa.c openssh-8.7p1-patched/ssh-rsa.c
--- openssh-8.7p1/ssh-rsa.c 2023-05-24 09:39:45.003631184 +0200
+++ openssh-8.7p1-patched/ssh-rsa.c 2023-05-24 09:31:37.019319860 +0200
@@ -174,8 +174,18 @@
if (RSA_bits(key->rsa) < SSH_RSA_MINIMUM_MODULUS_SIZE)
return SSH_ERR_KEY_LENGTH;
- if ((ret = ssh_create_evp_rsa(key, &pkey)) != 0)
- return ret;
+#ifdef ENABLE_PKCS11
+ if (is_rsa_pkcs11(key->rsa)) {
+ if ((pkey = EVP_PKEY_new()) == NULL ||
+ EVP_PKEY_set1_RSA(pkey, key->rsa) != 1)
+ return SSH_ERR_ALLOC_FAIL;
+ } else {
+#endif
+ if ((ret = ssh_create_evp_rsa(key, &pkey)) != 0)
+ return ret;
+#ifdef ENABLE_PKCS11
+ }
+#endif
ret = sshkey_calculate_signature(pkey, hash_alg, &sig, &len, data,
datalen);
EVP_PKEY_free(pkey);