Skip to content

fix: clarify method and signature field descriptions #62

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
strantalis wants to merge 3 commits into
base: main
Choose a base branch
from
Open

fix: clarify method and signature field descriptions #62

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
c00ad80
fix: clarify method and signature field descriptions
strantalis Dec 5, 2025
1d3d6ab
Apply suggestion from @pflynn-virtru
strantalis Dec 5, 2025
389b129
Clarify method field description in assertion binding
strantalis Dec 5, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 3 additions & 3 deletions schema/OpenTDF/assertion_binding.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,13 +7,13 @@ The `binding` object, nested within an [Assertion Object](./assertion.md), conta
```json
"binding": {
"method": "jws",
"signature": "eyJhbGciOiJSUzI1NiJ9..." // Base64URL encoded JWS string
"signature": "eyJhbGciOiJSUzI1NiJ9..." // JWS string
}
```

## Fields

| Parameter | Type | Description | Required? |
| --------- | ------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------- |
| method | String | The cryptographic method used for the signature. jws (JSON Web Signature) is commonly used, implying standard JWS processing rules apply. | Yes |
| signature | String | The Base64URL encoded signature value (e.g., a JWS Compact Serialization string). The signature calculation MUST include the assertion content and sufficient TDF context (like policy or key info hash) to prevent replay. | Yes |
| method | String | Cryptographic binding format. The only supported value is `"jws"` (JSON Web Signature using JWS Compact Serialization as per RFC 7515). | Yes |
| signature | String | JWS compact serialization string binding the assertion to the `scope` target (`tdo` or `payload`), providing integrity and replay protection. | Yes |