forked from pool/openssh
Marcus Meissner
988310371c
- Adapt OpenSSH to build with OpenSSL 3, use new KDF API (bsc#1205042) Add openssh-openssl-3.patch OBS-URL: https://build.opensuse.org/request/show/1043949 OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=244
126 lines
3.6 KiB
Diff
126 lines
3.6 KiB
Diff
---
|
|
fips.c | 5 +++++
|
|
kex.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
|
|
2 files changed, 65 insertions(+), 1 deletion(-)
|
|
|
|
--- a/fips.c
|
|
+++ b/fips.c
|
|
@@ -48,6 +48,11 @@
|
|
|
|
static int fips_state = -1;
|
|
|
|
+#if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
|
|
+# define FIPS_mode() EVP_default_properties_is_fips_enabled(NULL)
|
|
+# define FIPS_mode_set(x) EVP_default_properties_enable_fips(NULL,x)
|
|
+#endif
|
|
+
|
|
/* calculates HMAC of contents of a file given by filename using the hash
|
|
* algorithm specified by FIPS_HMAC_EVP in fips.h and placing the result into
|
|
* newly allacated memory - remember to free it when not needed anymore */
|
|
--- a/kex.c
|
|
+++ b/kex.c
|
|
@@ -41,6 +41,9 @@
|
|
#include <openssl/crypto.h>
|
|
#include <openssl/dh.h>
|
|
#include <openssl/kdf.h>
|
|
+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
|
|
+# include <openssl/core_names.h>
|
|
+# endif
|
|
#endif
|
|
|
|
#include "ssh.h"
|
|
@@ -1191,14 +1194,61 @@ derive_key_via_openssl(struct ssh *ssh,
|
|
{
|
|
struct kex *kex = ssh->kex;
|
|
EVP_KDF_CTX *hashctx = NULL;
|
|
- const EVP_MD *md = NULL;
|
|
u_char *digest = NULL;
|
|
int r = SSH_ERR_LIBCRYPTO_ERROR;
|
|
|
|
+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
|
|
+ OSSL_PARAM params[6], *p = params;
|
|
+ char type = (char) id;
|
|
+ EVP_KDF *kdf = EVP_KDF_fetch (NULL, "SSHKDF", NULL);
|
|
+ if (!kdf)
|
|
+ goto out;
|
|
+ hashctx = EVP_KDF_CTX_new (kdf);
|
|
+# else
|
|
+ const EVP_MD *md = NULL;
|
|
hashctx = EVP_KDF_CTX_new_id (EVP_KDF_SSHKDF);
|
|
+# endif
|
|
if (!hashctx)
|
|
goto out;
|
|
|
|
+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
|
|
+ switch (kex->hash_alg)
|
|
+ {
|
|
+ case SSH_DIGEST_MD5:
|
|
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
|
|
+ SN_md5, strlen(SN_md5));
|
|
+ break;
|
|
+ case SSH_DIGEST_SHA1:
|
|
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
|
|
+ SN_sha1, strlen(SN_sha1));
|
|
+ break;
|
|
+ case SSH_DIGEST_SHA256:
|
|
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
|
|
+ SN_sha256, strlen(SN_sha256));
|
|
+ break;
|
|
+ case SSH_DIGEST_SHA384:
|
|
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
|
|
+ SN_sha384, strlen(SN_sha384));
|
|
+ break;
|
|
+ case SSH_DIGEST_SHA512:
|
|
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
|
|
+ SN_sha512, strlen(SN_sha512));
|
|
+ break;
|
|
+ default:
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_KEY,
|
|
+ sshbuf_ptr(shared_secret), sshbuf_len(shared_secret));
|
|
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SSHKDF_XCGHASH,
|
|
+ hash, (size_t) hashlen);
|
|
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SSHKDF_SESSION_ID,
|
|
+ sshbuf_ptr(kex->session_id), (size_t) sshbuf_len(kex->session_id));
|
|
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_SSHKDF_TYPE,
|
|
+ &type, sizeof(type));
|
|
+ *p = OSSL_PARAM_construct_end();
|
|
+
|
|
+# else
|
|
md = get_openssl_md_for_hash_alg (kex->hash_alg);
|
|
if (!md)
|
|
goto out;
|
|
@@ -1215,6 +1265,7 @@ derive_key_via_openssl(struct ssh *ssh,
|
|
sshbuf_ptr(kex->session_id),
|
|
(size_t) sshbuf_len(kex->session_id)) != 1)
|
|
goto out;
|
|
+# endif
|
|
|
|
digest = calloc (1, need);
|
|
if (!digest) {
|
|
@@ -1222,7 +1273,11 @@ derive_key_via_openssl(struct ssh *ssh,
|
|
goto out;
|
|
}
|
|
|
|
+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
|
|
+ if (EVP_KDF_derive (hashctx, digest, need, params) != 1)
|
|
+# else
|
|
if (EVP_KDF_derive (hashctx, digest, need) != 1)
|
|
+# endif
|
|
goto out;
|
|
|
|
*keyp = digest;
|
|
@@ -1233,6 +1288,10 @@ derive_key_via_openssl(struct ssh *ssh,
|
|
if (hashctx)
|
|
EVP_KDF_CTX_free(hashctx);
|
|
|
|
+# if (OPENSSL_VERSION_NUMBER >= 0x30000000L)
|
|
+ EVP_KDF_free(kdf);
|
|
+# endif
|
|
+
|
|
if (digest)
|
|
free(digest);
|
|
|