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@ -7,7 +7,7 @@ Nostr-Specific Private Keys from Deterministic Wallet Signatures (Sign-In-With-X
## Abstract
This specification provides an optional method for Nostr clients and NIP-07 providers and coin wallet providers to generate deterministic private keys from Chain Agnostic `Sign-in-With-X`[(CAIP-122)](https://github.com/ChainAgnostic/CAIPs/pull/122) signature. Nostr-specific private key is derived from HKDF-SHA-256 using NIP02/NIP05 names, [(CAIP-02: Blockchain ID Specification)](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-2.md), [CAIP-10: Account ID Specification](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-10.md) identifiers, and deterministic signature from connected coin-wallet as inputs.
This specification provides an optional method for Nostr clients and NIP-07 providers and coin wallet providers to generate deterministic private keys from Chain Agnostic `Sign-in-With-X`[(CAIP-122)](https://github.com/ChainAgnostic/CAIPs/pull/122) signature. Nostr-specific private key is derived from HKDF-SHA-256 using NIP-02/NIP-05 names, [CAIP-02: Blockchain ID Specification](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-2.md), [CAIP-10: Account ID Specification](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-10.md) identifiers, and deterministic signature from connected coin-wallet as inputs.
## Terminology
@ -39,11 +39,11 @@ RFC6979 compatible deterministic signature from coin-wallet provider.
let signature = wallet.signMessage(message);
```
### e) Blockchain and Address Identifier
### e) Blockchain and Address Identifier
Chain Agnostic [CAIP-02: Blockchain ID Specification](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-2.md) and [CAIP-10: Account ID Specification](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-10.md) are used to generate blockchain and address identifiers.
```
let caip02 =
`eip155:<evm_chain_id>` ||
`eip155:<evm_chain_id>` ||
`cosmos:<hub_id_name>` ||
`bip122:<16 bytes genesis/fork hash>`;
@ -113,7 +113,7 @@ let password = "horse staple battery"
/**
*
*
* @param username nip02/nip05 identifier
* @param caip10 CAIP identifier for the blockchain account
* @param sig Deterministic signature from X-wallet provider
@ -136,12 +136,12 @@ export async function privateKeyFromX(
}
/**
*
*
* @param username nip02/nip05 identifier
* @param caip10 CAIP identifier for the blockchain account
* @param sig Deterministic signature from X-wallet provider
* @param password Optional password
* @returns
* @returns
*/
export async function signInWithX(
username: string,
@ -164,7 +164,7 @@ export async function signInWithX(
}
if(profile == null){
throw new Error("Nostr Profile Not Found")
}
}
petname = (username.split("@").length == 2) ? username.split("@")[0] : username.split(".")[0]
}
let privkey = await privateKeyFromX(username, caip10, sig, password)
@ -180,9 +180,9 @@ export async function signInWithX(
}
```
## Implementations
1) Nostr tools : https://github.com/nbd-wtf/nostr-tools/pull/132 (PR)
2) Nostr client: (WIP)
## Implementations
1) Nostr Tools : [Sign-In-With-X](https://github.com/dostr-eth/nostr-tools/tree/sign-in-with-x) ([Pull Request #132](https://github.com/nbd-wtf/nostr-tools/pull/132))
2) Nostr Client: [Dostr Client](https://github.com/dostr-eth/dostr-client)
## Security Considerations
@ -195,7 +195,7 @@ export async function signInWithX(
- [RFC5869: HKDF (HMAC-based Extract-and-Expand Key Derivation Function)](https://datatracker.ietf.org/doc/html/rfc5869)
- [CAIP-02: Blockchain ID Specification](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-2.md)
- [CAIP-10: Account ID Specification](https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-10.md)
- [CAIP-122: Sign-in-With-X)](https://github.com/ChainAgnostic/CAIPs/pull/122)
- [CAIP-122: Sign-in-With-X)](https://github.com/ChainAgnostic/CAIPs/pull/122)
- [Digital Signature Standard (DSS), FIPS 186-4 B.4.1](https://csrc.nist.gov/publications/detail/fips/186/4/final)
- [BIP340: Schnorr Signature Standard](https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki)
@ -204,4 +204,4 @@ export async function signInWithX(
- [NIP-02: Contact List and Petnames](https://github.com/nostr-protocol/nips/blob/master/02.md)
- [NIP-05: Mapping Nostr keys to DNS-based internet identifiers](https://github.com/nostr-protocol/nips/blob/master/05.md)
- [@noble/hashes](https://github.com/paulmillr/noble-hashes)
- [@noble/secp256k1](https://github.com/paulmillr/noble-secp256k1)
- [@noble/secp256k1](https://github.com/paulmillr/noble-secp256k1)