diff options
Diffstat (limited to 'adenosine/src/did.rs')
| -rw-r--r-- | adenosine/src/did.rs | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/adenosine/src/did.rs b/adenosine/src/did.rs new file mode 100644 index 0000000..c7d7d10 --- /dev/null +++ b/adenosine/src/did.rs @@ -0,0 +1,368 @@ +use crate::crypto::{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 crate::identifiers::Did; +use anyhow::Result; +use libipld::cbor::DagCborCodec; +use libipld::multihash::Code; +use libipld::{Block, Cid, DagCbor, DefaultParams}; +use serde_json::json; +use std::str::FromStr; + +#[allow(non_snake_case)] +#[derive(Debug, DagCbor, PartialEq, Eq, Clone)] +pub 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, + signingKey: self.signingKey, + recoveryKey: self.recoveryKey, + username: self.username, + service: self.service, + } + } +} + +impl CreateOp { + pub 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, + username, + service: atp_pds, + }; + 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) + } + + pub fn did_plc(&self) -> Did { + // 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 + Did::from_str(&format!("did:plc:{}", &digest_b32[0..24])).unwrap() + } + + 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, + } + } + + pub fn did_doc(&self) -> serde_json::Value { + let meta = DidDocMeta { + did: self.did_plc(), + // TODO + user_url: format!("https://{}", self.username), + service_url: self.service.clone(), + recovery_didkey: self.recoveryKey.clone(), + signing_didkey: self.signingKey.clone(), + }; + meta.did_doc() + } + + /// This method only makes sense on the "genesis" create object + pub 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) + } +} + +#[derive(Debug, PartialEq, Eq, Clone)] +pub struct DidDocMeta { + pub did: Did, + pub user_url: String, + pub service_url: String, + pub recovery_didkey: String, + pub signing_didkey: String, +} + +impl DidDocMeta { + pub fn did_doc(&self) -> serde_json::Value { + let key_type = "EcdsaSecp256r1VerificationKey2019"; + json!({ + "@context": [ + "https://www.w3.org/ns/did/v1", + "https://w3id.org/security/suites/ecdsa-2019/v1" + ], + "id": self.did.to_string(), + "alsoKnownAs": [ self.user_url ], + "verificationMethod": [ + { + "id": format!("{}#signingKey)", self.did), + "type": key_type, + "controller": self.did.to_string(), + "publicKeyMultibase": self.signing_didkey + }, + { + "id": format!("{}#recoveryKey)", self.did), + "type": key_type, + "controller": self.did.to_string(), + "publicKeyMultibase": self.recovery_didkey + } + ], + "assertionMethod": [ format!("{}#signingKey)", self.did)], + "capabilityInvocation": [ format!("{}#signingKey)", self.did) ], + "capabilityDelegation": [ format!("{}#signingKey)", self.did) ], + "service": [ + { + "id": format!("{}#atpPds)", self.did), + "type": "AtpPersonalDataServer", + "serviceEndpoint": self.service_url + } + ] + }) + } +} + +#[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(); + assert_eq!( + &op.did_plc().to_string(), + "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().unwrap(); + assert_eq!( + &op.did_plc().to_string(), + "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(); +} |