From: "Fabian Grünbichler" <f.gruenbichler@proxmox.com>
To: pbs-devel@lists.proxmox.com
Subject: [pbs-devel] [PATCH proxmox-backup 06/13] manifest: check fingerprint when loading with key
Date: Fri, 20 Nov 2020 17:38:36 +0100 [thread overview]
Message-ID: <20201120163845.1225080-7-f.gruenbichler@proxmox.com> (raw)
In-Reply-To: <20201120163845.1225080-1-f.gruenbichler@proxmox.com>
otherwise loading will run into the signature mismatch which is
technically true, but not the complete picture in this case.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
---
src/backup/manifest.rs | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/backup/manifest.rs b/src/backup/manifest.rs
index 00dafbd6..a64cbe15 100644
--- a/src/backup/manifest.rs
+++ b/src/backup/manifest.rs
@@ -273,6 +273,19 @@ impl BackupManifest {
if let Some(ref crypt_config) = crypt_config {
if let Some(signature) = signature {
let expected_signature = proxmox::tools::digest_to_hex(&Self::json_signature(&json, crypt_config)?);
+
+ let fingerprint = &json["unprotected"]["key-fingerprint"];
+ if fingerprint != &Value::Null {
+ let fingerprint = serde_json::from_value(fingerprint.clone())?;
+ let config_fp = crypt_config.fingerprint();
+ if config_fp != fingerprint {
+ bail!(
+ "wrong key - unable to verify signature since manifest's key {} does not match provided key {}",
+ fingerprint,
+ config_fp
+ );
+ }
+ }
if signature != expected_signature {
bail!("wrong signature in manifest");
}
--
2.20.1
next prev parent reply other threads:[~2020-11-20 16:40 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-20 16:38 [pbs-devel] [PATCH v2 proxmox-backup(-qemu) 00/15] add, persist and check fingerprint Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 01/13] crypt config: add fingerprint mechanism Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 02/13] key: add fingerprint to key config Fabian Grünbichler
2020-11-23 8:07 ` Wolfgang Bumiller
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 03/13] client: print key fingerprint and master key Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 04/13] client: add 'key show' command Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 05/13] fix #3139: add key fingerprint to manifest Fabian Grünbichler
2020-11-20 16:38 ` Fabian Grünbichler [this message]
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 07/13] client: check fingerprint after downloading manifest Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 08/13] paperkey: refactor common code Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 09/13] paperkey: add short key ID to subject Fabian Grünbichler
2020-11-23 7:07 ` Dietmar Maurer
2020-11-23 8:16 ` Fabian Grünbichler
2020-11-23 8:30 ` Dietmar Maurer
2020-11-23 8:47 ` Fabian Grünbichler
2020-11-23 8:41 ` Dietmar Maurer
2020-11-23 8:55 ` Dietmar Maurer
2020-11-23 9:44 ` Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [RFC proxmox-backup 10/13] expose previous backup time in backup env Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 11/13] refactor BackupInfo -> SnapshotListItem helper Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 12/13] list_snapshots: return manifest fingerprint Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup 13/13] gui: add snapshot/file fingerprint tooltip Fabian Grünbichler
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup-qemu 1/2] adapt to proxmox-backup fingerprint changes Fabian Grünbichler
2020-11-24 8:07 ` [pbs-devel] applied: " Dietmar Maurer
2020-11-20 16:38 ` [pbs-devel] [PATCH proxmox-backup-qemu 2/2] restore: improve error if key is missing Fabian Grünbichler
2020-11-24 7:47 ` [pbs-devel] [PATCH v2 proxmox-backup(-qemu) 00/15] add, persist and check fingerprint Dietmar Maurer
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