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feat: updated signature method according to the up-to-date implementation #175

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feat: updated signature method according to the up-to-date implementation #175

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feat: updated signature method according to the up-to-date implementa…
wyang589 Aug 19, 2022
f5362f9
reverted changes not needed.
wyang589 Aug 19, 2022
3385bcc
removed deprecated endpoints from documentation
wyang589 Aug 19, 2022
9588b1c
Merge branch 'main' into feat/update-signature-method-documentation
sssion Aug 25, 2022
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42 changes: 1 addition & 41 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ which Pando subscribes.
#### Prerequisite
Pando accepts IPLD data from metadata providers with the following required IPLD children nodes:
1. `Provider String` - provider's peer ID
2. `Signature Bytes` - signature of the IPLD data: sign( bytes(PreviousID) . bytes(Payload) . bytes(Provider)) )
2. `Signature Bytes` - signature of the IPLD data: dagjson.Encode( ipld.Node{PreviousID, Provider, Payload} ).Bytes()
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sig, err := SignWithPrivky(signKey, meta)
if err != nil {
	return nil, err
}

// Add signature
meta.Signature = sig

Signature Bytes is bytes from envelop's Marshal(). The envelop will use metaSignatureRecord, PrivateKey and bytes from IPLD node(dagjson.Encode)

// Signs metadata using libp2p envelope
func SignWithPrivky(privkey crypto.PrivKey, meta *Metadata) ([]byte, error) {
metaID, err := signMetadata(meta)
if err != nil {
return nil, err
}
envelope, err := record.Seal(&metaSignatureRecord{metaID: metaID}, privkey)
if err != nil {
return nil, err
}
return envelope.Marshal()
}

3. `Payload Bytes` - bytes of your serialized metadata

and a nullable node:
Expand Down Expand Up @@ -270,46 +270,6 @@ Show information of Pando server

```

### /pando/subscribe
Let Pando subscribe a topic with provider to start metadata synchronization
```shell
./pando-client -a http://127.0.0.1:9000 pando subscribe --provider-peerid 12D3KooWSS3sEujyAXB9SWUvVtQZmxH6vTi9NitqaaRQoUjeEk3M

{
"code": 200,
"message": "subscribe success",
"Data": null
}

```

### /provider/register
Provider should be registered before using Pando service
```shell
./pando-client -a http://127.0.0.1:9000 provider register \
--peer-id 12D3KooWBckWLKiYoUX4k3HTrbrSe4DD5SPNTKgP6vKTva1NaRkJ \
--private-key CAESQLypOCKYR7HGwVl4ngNhEqMZ7opchNOUA4Qc1QDpxsARGr2pWUgkXFXKU27TgzIHXqw0tXaUVx2GIbUuLitq22c= \
--addresses /ip4/127.0.0.1/tcp/9999

{
"code": 200,
"message": "register success",
"Data": null
}

```

to generate an envelop-data only, run:
```shell
./pando-client -a http://127.0.0.1:9000 provider register \
--only-envelop \
--peer-id 12D3KooWBckWLKiYoUX4k3HTrbrSe4DD5SPNTKgP6vKTva1NaRkJ \
--private-key CAESQLypOCKYR7HGwVl4ngNhEqMZ7opchNOUA4Qc1QDpxsARGr2pWUgkXFXKU27TgzIHXqw0tXaUVx2GIbUuLitq22c= \
--addresses /ip4/127.0.0.1/tcp/9999

envelop data saved at ./envelop.data
```

### /metadata/list
List all cids of metadata snapshots
```shell
Expand Down