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-rw-r--r--adenosine-pds/src/did.rs342
1 files changed, 342 insertions, 0 deletions
diff --git a/adenosine-pds/src/did.rs b/adenosine-pds/src/did.rs
new file mode 100644
index 0000000..f33f512
--- /dev/null
+++ b/adenosine-pds/src/did.rs
@@ -0,0 +1,342 @@
+use crate::{KeyPair, PubKey};
+/// DID and 'did:plc' stuff
+///
+/// This is currently a partial/skeleton implementation, which only generates local/testing did:plc
+/// DIDs (and DID documents) using a single 'create' genesis block. Key rotation, etc, is not
+/// supported.
+use anyhow::Result;
+use libipld::cbor::DagCborCodec;
+use libipld::multihash::Code;
+use libipld::{Block, Cid, DagCbor, DefaultParams};
+use serde_json::json;
+
+#[allow(non_snake_case)]
+#[derive(Debug, DagCbor, PartialEq, Eq, Clone)]
+struct CreateOp {
+ #[ipld(rename = "type")]
+ pub op_type: String,
+ pub signingKey: String,
+ pub recoveryKey: String,
+ pub username: String,
+ pub service: String,
+ pub prev: Option<Cid>,
+ pub sig: String,
+}
+
+#[allow(non_snake_case)]
+#[derive(Debug, DagCbor, PartialEq, Eq, Clone)]
+struct UnsignedCreateOp {
+ #[ipld(rename = "type")]
+ pub op_type: String,
+ pub signingKey: String,
+ pub recoveryKey: String,
+ pub username: String,
+ pub service: String,
+ pub prev: Option<Cid>,
+}
+
+impl UnsignedCreateOp {
+ fn into_signed(self, sig: String) -> CreateOp {
+ CreateOp {
+ op_type: self.op_type,
+ prev: self.prev,
+ sig: sig,
+ signingKey: self.signingKey,
+ recoveryKey: self.recoveryKey,
+ username: self.username,
+ service: self.service,
+ }
+ }
+}
+
+impl CreateOp {
+ fn new(
+ username: String,
+ atp_pds: String,
+ keypair: &KeyPair,
+ recovery_key: Option<String>,
+ ) -> Self {
+ let signing_key = keypair.pubkey().to_did_key();
+ let recovery_key = recovery_key.unwrap_or(signing_key.clone());
+ let unsigned = UnsignedCreateOp {
+ op_type: "create".to_string(),
+ prev: None,
+ signingKey: signing_key,
+ recoveryKey: recovery_key.to_string(),
+ username: username.to_string(),
+ service: atp_pds.to_string(),
+ };
+ let block = Block::<DefaultParams>::encode(DagCborCodec, Code::Sha2_256, &unsigned)
+ .expect("encode DAG-CBOR");
+ let sig = keypair.sign_bytes(block.data());
+ unsigned.into_signed(sig)
+ }
+
+ fn did_plc(&self) -> String {
+ // dump DAG-CBOR
+ let block = Block::<DefaultParams>::encode(DagCborCodec, Code::Sha2_256, self)
+ .expect("encode DAG-CBOR");
+ let bin = block.data();
+ // hash SHA-256
+ let digest_bytes: Vec<u8> = data_encoding::HEXLOWER
+ .decode(&sha256::digest(bin).as_bytes())
+ .expect("SHA-256 digest is always hex string");
+ // encode base32
+ let digest_b32 = data_encoding::BASE32_NOPAD
+ .encode(&digest_bytes)
+ .to_ascii_lowercase();
+ // truncate
+ format!("did:plc:{}", &digest_b32[0..24])
+ }
+
+ fn did_doc(&self) -> serde_json::Value {
+ let did = self.did_plc();
+ // TODO:
+ let user_url = format!("https://{}.test", self.username);
+ let key_type = "EcdsaSecp256r1VerificationKey2019";
+ json!({
+ "@context": [
+ "https://www.w3.org/ns/did/v1",
+ "https://w3id.org/security/suites/ecdsa-2019/v1"
+ ],
+ "id": did,
+ "alsoKnownAs": [ user_url ],
+ "verificationMethod": [
+ {
+ "id": format!("{}#signingKey)", did),
+ "type": key_type,
+ "controller": did,
+ "publicKeyMultibase": self.signingKey
+ },
+ {
+ "id": format!("{}#recoveryKey)", did),
+ "type": key_type,
+ "controller": did,
+ "publicKeyMultibase": self.recoveryKey
+ }
+ ],
+ "assertionMethod": [ format!("{}#signingKey)", did)],
+ "capabilityInvocation": [ format!("{}#signingKey)", did) ],
+ "capabilityDelegation": [ format!("{}#signingKey)", did) ],
+ "service": [
+ {
+ "id": format!("{}#atpPds)", did),
+ "type": "AtpPersonalDataServer",
+ "serviceEndpoint": self.service
+ }
+ ]
+ })
+ }
+
+ fn into_unsigned(self) -> UnsignedCreateOp {
+ UnsignedCreateOp {
+ op_type: self.op_type,
+ prev: self.prev,
+ signingKey: self.signingKey,
+ recoveryKey: self.recoveryKey,
+ username: self.username,
+ service: self.service,
+ }
+ }
+
+ /// This method only makes sense on the "genesis" create object
+ fn verify_self(&self) -> Result<()> {
+ let key = PubKey::from_did_key(&self.signingKey)?;
+ let unsigned = {
+ let cpy = (*self).clone();
+ cpy.into_unsigned()
+ };
+ println!("unsigned: {:?}", unsigned);
+ let block = Block::<DefaultParams>::encode(DagCborCodec, Code::Sha2_256, &unsigned)
+ .expect("encode DAG-CBOR");
+ key.verify_bytes(block.data(), &self.sig)
+ }
+}
+
+#[test]
+fn test_debug_did_signing() {
+ let op = UnsignedCreateOp {
+ op_type: "create".to_string(),
+ signingKey: "did:key:zDnaeSWVQyW8DSF6mDwT9j8YrzDWDs8h6PPjuTcipzG84iCBE".to_string(),
+ recoveryKey: "did:key:zDnaeSWVQyW8DSF6mDwT9j8YrzDWDs8h6PPjuTcipzG84iCBE".to_string(),
+ username: "carla.test".to_string(),
+ service: "http://localhost:2583".to_string(),
+ prev: None,
+ };
+ let block =
+ Block::<DefaultParams>::encode(DagCborCodec, Code::Sha2_256, &op).expect("encode DAG-CBOR");
+ let op_bytes = block.data();
+
+ let key_bytes = vec![
+ 4, 30, 224, 8, 198, 84, 108, 1, 58, 193, 91, 176, 212, 45, 4, 36, 28, 252, 242, 95, 20, 85,
+ 87, 246, 79, 134, 42, 113, 5, 216, 238, 235, 21, 146, 16, 88, 239, 217, 36, 252, 148, 197,
+ 203, 22, 29, 2, 52, 152, 77, 208, 21, 88, 2, 85, 219, 212, 148, 139, 104, 200, 15, 119, 46,
+ 178, 186,
+ ];
+
+ let pub_key =
+ PubKey::from_did_key("did:key:zDnaeSWVQyW8DSF6mDwT9j8YrzDWDs8h6PPjuTcipzG84iCBE").unwrap();
+ //let keypair = KeyPair::from_bytes(&key_bytes).unwrap();
+ //assert_eq!(keypair.to_bytes(), key_bytes);
+
+ let encoded_bytes = vec![
+ 166, 100, 112, 114, 101, 118, 246, 100, 116, 121, 112, 101, 102, 99, 114, 101, 97, 116,
+ 101, 103, 115, 101, 114, 118, 105, 99, 101, 117, 104, 116, 116, 112, 58, 47, 47, 108, 111,
+ 99, 97, 108, 104, 111, 115, 116, 58, 50, 53, 56, 51, 104, 117, 115, 101, 114, 110, 97, 109,
+ 101, 106, 99, 97, 114, 108, 97, 46, 116, 101, 115, 116, 106, 115, 105, 103, 110, 105, 110,
+ 103, 75, 101, 121, 120, 57, 100, 105, 100, 58, 107, 101, 121, 58, 122, 68, 110, 97, 101,
+ 83, 87, 86, 81, 121, 87, 56, 68, 83, 70, 54, 109, 68, 119, 84, 57, 106, 56, 89, 114, 122,
+ 68, 87, 68, 115, 56, 104, 54, 80, 80, 106, 117, 84, 99, 105, 112, 122, 71, 56, 52, 105, 67,
+ 66, 69, 107, 114, 101, 99, 111, 118, 101, 114, 121, 75, 101, 121, 120, 57, 100, 105, 100,
+ 58, 107, 101, 121, 58, 122, 68, 110, 97, 101, 83, 87, 86, 81, 121, 87, 56, 68, 83, 70, 54,
+ 109, 68, 119, 84, 57, 106, 56, 89, 114, 122, 68, 87, 68, 115, 56, 104, 54, 80, 80, 106,
+ 117, 84, 99, 105, 112, 122, 71, 56, 52, 105, 67, 66, 69,
+ ];
+ assert_eq!(encoded_bytes, op_bytes);
+
+ let sig_bytes = vec![
+ 131, 115, 47, 143, 89, 68, 79, 73, 121, 198, 70, 76, 91, 64, 171, 25, 18, 139, 244, 94,
+ 123, 224, 205, 32, 241, 174, 36, 120, 199, 206, 199, 202, 216, 154, 2, 10, 247, 101, 138,
+ 170, 85, 95, 142, 164, 50, 203, 92, 23, 247, 218, 231, 224, 78, 68, 55, 104, 243, 145, 243,
+ 4, 219, 102, 44, 227,
+ ];
+ let sig_str =
+ "g3Mvj1lET0l5xkZMW0CrGRKL9F574M0g8a4keMfOx8rYmgIK92WKqlVfjqQyy1wX99rn4E5EN2jzkfME22Ys4w";
+
+ pub_key.verify_bytes(op_bytes, sig_str).unwrap();
+
+ let signed = op.into_signed(sig_str.to_string());
+ signed.verify_self().unwrap();
+}
+
+/*
+------------------------------------
+OP:
+{
+ type: 'create',
+ signingKey: 'did:key:zDnaesoxZb8mLjf16e4PWsNqLLj9uWM9TQ8nNwxqErDmKXLAN',
+ recoveryKey: 'did:key:zDnaesoxZb8mLjf16e4PWsNqLLj9uWM9TQ8nNwxqErDmKXLAN',
+ username: 'carla.test',
+ service: 'http://localhost:2583',
+ prev: null,
+ sig: 'VYGxmZs-D5830YdQSNrZpbxVyOPB4nCJtO-x0XElt35AE5wjvJFa2vJu8qjURG6TvEbMvfbekDo_eXEMhdPWdg'
+}
+ENCODED:
+{"0":167,"1":99,"2":115,"3":105,"4":103,"5":120,"6":86,"7":86,"8":89,"9":71,"10":120,"11":109,"12":90,"13":115,"14":45,"15":68,"16":53,"17":56,"18":51,"19":48,"20":89,"21":100,"22":81,"23":83,"24":78,"25":114,"26":90,"27":112,"28":98,"29":120,"30":86,"31":121,"32":79,"33":80,"34":66,"35":52,"36":110,"37":67,"38":74,"39":116,"40":79,"41":45,"42":120,"43":48,"44":88,"45":69,"46":108,"47":116,"48":51,"49":53,"50":65,"51":69,"52":53,"53":119,"54":106,"55":118,"56":74,"57":70,"58":97,"59":50,"60":118,"61":74,"62":117,"63":56,"64":113,"65":106,"66":85,"67":82,"68":71,"69":54,"70":84,"71":118,"72":69,"73":98,"74":77,"75":118,"76":102,"77":98,"78":101,"79":107,"80":68,"81":111,"82":95,"83":101,"84":88,"85":69,"86":77,"87":104,"88":100,"89":80,"90":87,"91":100,"92":103,"93":100,"94":112,"95":114,"96":101,"97":118,"98":246,"99":100,"100":116,"101":121,"102":112,"103":101,"104":102,"105":99,"106":114,"107":101,"108":97,"109":116,"110":101,"111":103,"112":115,"113":101,"114":114,"115":118,"116":105,"117":99,"118":101,"119":117,"120":104,"121":116,"122":116,"123":112,"124":58,"125":47,"126":47,"127":108,"128":111,"129":99,"130":97,"131":108,"132":104,"133":111,"134":115,"135":116,"136":58,"137":50,"138":53,"139":56,"140":51,"141":104,"142":117,"143":115,"144":101,"145":114,"146":110,"147":97,"148":109,"149":101,"150":106,"151":99,"152":97,"153":114,"154":108,"155":97,"156":46,"157":116,"158":101,"159":115,"160":116,"161":106,"162":115,"163":105,"164":103,"165":110,"166":105,"167":110,"168":103,"169":75,"170":101,"171":121,"172":120,"173":57,"174":100,"175":105,"176":100,"177":58,"178":107,"179":101,"180":121,"181":58,"182":122,"183":68,"184":110,"185":97,"186":101,"187":115,"188":111,"189":120,"190":90,"191":98,"192":56,"193":109,"194":76,"195":106,"196":102,"197":49,"198":54,"199":101,"200":52,"201":80,"202":87,"203":115,"204":78,"205":113,"206":76,"207":76,"208":106,"209":57,"210":117,"211":87,"212":77,"213":57,"214":84,"215":81,"216":56,"217":110,"218":78,"219":119,"220":120,"221":113,"222":69,"223":114,"224":68,"225":109,"226":75,"227":88,"228":76,"229":65,"230":78,"231":107,"232":114,"233":101,"234":99,"235":111,"236":118,"237":101,"238":114,"239":121,"240":75,"241":101,"242":121,"243":120,"244":57,"245":100,"246":105,"247":100,"248":58,"249":107,"250":101,"251":121,"252":58,"253":122,"254":68,"255":110,"256":97,"257":101,"258":115,"259":111,"260":120,"261":90,"262":98,"263":56,"264":109,"265":76,"266":106,"267":102,"268":49,"269":54,"270":101,"271":52,"272":80,"273":87,"274":115,"275":78,"276":113,"277":76,"278":76,"279":106,"280":57,"281":117,"282":87,"283":77,"284":57,"285":84,"286":81,"287":56,"288":110,"289":78,"290":119,"291":120,"292":113,"293":69,"294":114,"295":68,"296":109,"297":75,"298":88,"299":76,"300":65,"301":78}
+SHA256 base32:
+cg2dfxdh5voabmdjzw2abw3sgvtjymknh2bmpvtwot7t2ih4v7za
+did:plc:cg2dfxdh5voabmdjzw2abw3s
+------------------------------------
+
+*/
+
+#[test]
+fn test_debug_did_plc() {
+ let op = CreateOp {
+ op_type: "create".to_string(),
+ signingKey: "did:key:zDnaesoxZb8mLjf16e4PWsNqLLj9uWM9TQ8nNwxqErDmKXLAN".to_string(),
+ recoveryKey: "did:key:zDnaesoxZb8mLjf16e4PWsNqLLj9uWM9TQ8nNwxqErDmKXLAN".to_string(),
+ username: "carla.test".to_string(),
+ service: "http://localhost:2583".to_string(),
+ prev: None,
+ sig:
+ "VYGxmZs-D5830YdQSNrZpbxVyOPB4nCJtO-x0XElt35AE5wjvJFa2vJu8qjURG6TvEbMvfbekDo_eXEMhdPWdg"
+ .to_string(),
+ };
+ op.verify_self().unwrap();
+ let block =
+ Block::<DefaultParams>::encode(DagCborCodec, Code::Sha2_256, &op).expect("encode DAG-CBOR");
+ let op_bytes = block.data();
+
+ let encoded_bytes = vec![
+ 167, 99, 115, 105, 103, 120, 86, 86, 89, 71, 120, 109, 90, 115, 45, 68, 53, 56, 51, 48, 89,
+ 100, 81, 83, 78, 114, 90, 112, 98, 120, 86, 121, 79, 80, 66, 52, 110, 67, 74, 116, 79, 45,
+ 120, 48, 88, 69, 108, 116, 51, 53, 65, 69, 53, 119, 106, 118, 74, 70, 97, 50, 118, 74, 117,
+ 56, 113, 106, 85, 82, 71, 54, 84, 118, 69, 98, 77, 118, 102, 98, 101, 107, 68, 111, 95,
+ 101, 88, 69, 77, 104, 100, 80, 87, 100, 103, 100, 112, 114, 101, 118, 246, 100, 116, 121,
+ 112, 101, 102, 99, 114, 101, 97, 116, 101, 103, 115, 101, 114, 118, 105, 99, 101, 117, 104,
+ 116, 116, 112, 58, 47, 47, 108, 111, 99, 97, 108, 104, 111, 115, 116, 58, 50, 53, 56, 51,
+ 104, 117, 115, 101, 114, 110, 97, 109, 101, 106, 99, 97, 114, 108, 97, 46, 116, 101, 115,
+ 116, 106, 115, 105, 103, 110, 105, 110, 103, 75, 101, 121, 120, 57, 100, 105, 100, 58, 107,
+ 101, 121, 58, 122, 68, 110, 97, 101, 115, 111, 120, 90, 98, 56, 109, 76, 106, 102, 49, 54,
+ 101, 52, 80, 87, 115, 78, 113, 76, 76, 106, 57, 117, 87, 77, 57, 84, 81, 56, 110, 78, 119,
+ 120, 113, 69, 114, 68, 109, 75, 88, 76, 65, 78, 107, 114, 101, 99, 111, 118, 101, 114, 121,
+ 75, 101, 121, 120, 57, 100, 105, 100, 58, 107, 101, 121, 58, 122, 68, 110, 97, 101, 115,
+ 111, 120, 90, 98, 56, 109, 76, 106, 102, 49, 54, 101, 52, 80, 87, 115, 78, 113, 76, 76,
+ 106, 57, 117, 87, 77, 57, 84, 81, 56, 110, 78, 119, 120, 113, 69, 114, 68, 109, 75, 88, 76,
+ 65, 78,
+ ];
+ assert_eq!(op_bytes, encoded_bytes);
+
+ let sha256_str = "cg2dfxdh5voabmdjzw2abw3sgvtjymknh2bmpvtwot7t2ih4v7za";
+ let did_plc = "did:plc:cg2dfxdh5voabmdjzw2abw3s";
+
+ let digest_bytes: Vec<u8> = data_encoding::HEXLOWER
+ .decode(&sha256::digest(op_bytes).as_bytes())
+ .expect("SHA-256 digest is always hex string");
+ let digest_b32 = data_encoding::BASE32_NOPAD
+ .encode(&digest_bytes)
+ .to_ascii_lowercase();
+ assert_eq!(digest_b32, sha256_str);
+}
+
+#[test]
+fn test_did_plc_examples() {
+ // https://atproto.com/specs/did-plc
+ let op = CreateOp {
+ op_type: "create".to_string(),
+ signingKey: "did:key:zDnaejYFhgFiVF89LhJ4UipACLKuqo6PteZf8eKDVKeExXUPk".to_string(),
+ recoveryKey: "did:key:zDnaeSezF2TgCD71b5DiiFyhHQwKAfsBVqTTHRMvP597Z5Ztn".to_string(),
+ username: "alice.example.com".to_string(),
+ service: "https://example.com".to_string(),
+ prev: None,
+ sig:
+ "vi6JAl5W4FfyViD5_BKL9p0rbI3MxTWuh0g_egTFAjtf7gwoSfSe1O3qMOEUPX6QH3H0Q9M4y7gOLGblWkEwfQ"
+ .to_string(),
+ };
+ op.verify_self().unwrap();
+
+ // XXX: DID PLC generation is also also not consistent
+ //assert_eq!(&op.did_plc(), "did:plc:7iza6de2dwap2sbkpav7c6c6");
+
+ // interacting with PDS / PLC server
+ let op = CreateOp {
+ op_type: "create".to_string(),
+ signingKey: "did:key:zDnaekmbFffmpo7LZ4C7bEFjGKPk11N47kKN8j7jtAcGUabw3".to_string(),
+ recoveryKey: "did:key:zDnaekmbFffmpo7LZ4C7bEFjGKPk11N47kKN8j7jtAcGUabw3".to_string(),
+ username: "voltaire.test".to_string(),
+ service: "http://localhost:2583".to_string(),
+ prev: None,
+ sig:
+ "HNfQUg6SMnYKp1l3LtAIsoAblmi33mYiHE9JH1j7w3B-hd8xWpmCUBUoqKfQXmsAs0K1z8Izt19yYk6PqVFgyg"
+ .to_string(),
+ };
+ op.verify_self();
+ assert_eq!(&op.did_plc(), "did:plc:bmrcg7zrxoiw2kiml3tkw2xv");
+}
+
+#[test]
+fn test_self_verify() {
+ let keypair = KeyPair::new_random();
+ let op = CreateOp::new(
+ "dummy-handle".to_string(),
+ "https://dummy.service".to_string(),
+ &keypair,
+ None,
+ );
+ println!("{:?}", op);
+ op.verify_self().unwrap();
+}
+
+#[test]
+fn test_known_key() {
+ let keypair = KeyPair::new_random();
+ let op = CreateOp::new(
+ "dummy-handle".to_string(),
+ "https://dummy.service".to_string(),
+ &keypair,
+ None,
+ );
+ println!("{:?}", op);
+ op.verify_self().unwrap();
+}