mirror of
https://codeberg.org/keyoxide/doipjs.git
synced 2024-12-23 06:59:29 -07:00
147 lines
3.4 KiB
Markdown
147 lines
3.4 KiB
Markdown
# Claims
|
|
|
|
## Definition
|
|
|
|
A **claim** is one of the two pieces of data needed to verify an online
|
|
identity, the other being a [proof](proofs.md).
|
|
|
|
A claim is always a phrase, string or URI that is expected to be found inside
|
|
the proof. **The presence of a claim inside a proof verifies that claim.**
|
|
|
|
## Claims in OpenPGP keys
|
|
|
|
DOIP assumes claims are stored in OpenPGP keys as so-called notations. The
|
|
format for all claims is the same:
|
|
|
|
```
|
|
proof@metacode.biz=...
|
|
```
|
|
|
|
## Relation with proof
|
|
|
|
The relation between proof and claim is defined by three variables: `format`,
|
|
`path` and `relation`.
|
|
|
|
In the following examples, we'll assume we are dealing with a key that has the
|
|
fingerprint `13ec664f5e0c3e4ebad8b7441adbf09217175f75`.
|
|
|
|
### format
|
|
|
|
This variable describes how the proof is integrated in the data returned by the
|
|
service provider.
|
|
|
|
If `format` is set to `uri`, the claim expects the proof to be or contain:
|
|
|
|
```
|
|
openpgp4fpr:13ec664f5e0c3e4ebad8b7441adbf09217175f75
|
|
```
|
|
|
|
If `format` is set to `message`, the claim expects the proof to be or contain:
|
|
|
|
```
|
|
[Verifying my OpenPGP key: openpgp4fpr:13ec664f5e0c3e4ebad8b7441adbf09217175f75]
|
|
```
|
|
|
|
If `format` is set to `fingerprint`, the claim expects the proof to be or
|
|
contain:
|
|
|
|
```
|
|
13ec664f5e0c3e4ebad8b7441adbf09217175f75
|
|
```
|
|
|
|
### path
|
|
|
|
This variables describes how to get to the important proof-containing field
|
|
inside the JSON data. It is an array of strings, each string equal to the next
|
|
field inside the JSON data.
|
|
|
|
If the proof data is text, the `path` value is ignored.
|
|
|
|
Assuming the following JSON data:
|
|
|
|
```json
|
|
"firstField": {
|
|
"secondField": {
|
|
"finalField": "openpgp4fpr:13ec664f5e0c3e4ebad8b7441adbf09217175f75",
|
|
"yetAnotherField": "yetAnotherValue"
|
|
},
|
|
"otherField": "someValue"
|
|
}
|
|
```
|
|
|
|
To verify any claim, the `path` should be set to:
|
|
|
|
```javascript
|
|
claim.path = ['firstField', 'secondField', 'finalField']
|
|
```
|
|
|
|
**JSON data containing arrays**
|
|
|
|
In cases there are arrays in the JSON data, these should **not** be entered in
|
|
`path`. They will always be iterated over.
|
|
|
|
Assuming the following JSON data:
|
|
|
|
```json
|
|
"firstField": {
|
|
"fieldContainingArray": [
|
|
{
|
|
"finalField": "https://domain.org",
|
|
"yetAnotherField": "yetAnotherValue1"
|
|
},
|
|
{
|
|
"finalField": "openpgp4fpr:13ec664f5e0c3e4ebad8b7441adbf09217175f75",
|
|
"yetAnotherField": "yetAnotherValue2"
|
|
}
|
|
],
|
|
"otherField": "someValue"
|
|
}
|
|
```
|
|
|
|
To verify any claim, the `path` should be set to:
|
|
|
|
```javascript
|
|
claim.path = ['firstField', 'fieldContainingArray', 'finalField']
|
|
```
|
|
|
|
Every `finalField` field for every item in the `fieldContainingArray` array will
|
|
be tested for the claim.
|
|
|
|
### relation
|
|
|
|
This variable simply states whether after following the `path` inside the JSON
|
|
data, the obtained value `contains` the claim, `equals` the claim or if the
|
|
obtained value is an array, the claim is `oneOf` the values of the array.
|
|
|
|
The `relation` should be `contains` for the following proof data:
|
|
|
|
```json
|
|
"firstField": {
|
|
"secondField": {
|
|
"finalField": "Long text. openpgp4fpr:13ec664f5e0c3e4ebad8b7441adbf09217175f75. Perhaps more text."
|
|
}
|
|
}
|
|
```
|
|
|
|
The `relation` should be `equals` for the following proof data:
|
|
|
|
```json
|
|
"firstField": {
|
|
"secondField": {
|
|
"finalField": "openpgp4fpr:13ec664f5e0c3e4ebad8b7441adbf09217175f75"
|
|
}
|
|
}
|
|
```
|
|
|
|
The `relation` should be `oneOf` for the following proof data:
|
|
|
|
```json
|
|
"firstField": {
|
|
"secondField": {
|
|
"finalField": [
|
|
"cats",
|
|
"openpgp4fpr:13ec664f5e0c3e4ebad8b7441adbf09217175f75"
|
|
]
|
|
}
|
|
}
|
|
```
|