blob: cfb6198041727f6d56b3a858b4b2493c836ef758 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
# Use-case specific claimant models
Sigsum logs can be used for a variety of use-cases. One way to describe your
use-case is with the
[claimant model](https://github.com/google/trillian/blob/master/docs/claimantmodel/CoreModel.md).
You will realize that verifiers must see the same signed statements as believers.
Sigsum solves that.
XXX: add more examples.
## **System<sup>RB</sup>**:
System<sup>RB</sup> is about the claims made by a _software publisher_ that
makes reproducible builds available.
* **Claim<sup>RB</sup>**:
_I, software publisher, claim that the right opaque data_:
1. has cryptographic hash X
2. is the output of a reproducible build for which the source and relevant
build-info information can be located in repository Y using X as an identifier
* **Statement<sup>RB</sup>**: Statement<sup>CHECKSUM</sup><br>
The signed statement encodes a cryptographic hash X.
* **Claimant<sup>RB</sup>**: software publisher<br>
The software publisher is a party that wants to publish a reproducible
build.
* **Believer<sup>RB</sup>**: end-user<br>
The end-user is a party that wants to run an executable binary if it
builds reproducibly.
* **Verifier<sup>RB</sup>**: any interested party<br>
These parties try to verify the above claims. For example:
* the software publisher itself (_"has my identity been compromised?"_)
* rebuilders that check for locatability and reproducibility
* **Arbiter<sup>RB</sup>**:<br>
There's no official body. Invalidated claims would affect reputation.
|
