openssh/openssh-openssl-3.patch

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);