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46 lines
1.5 KiB
46 lines
1.5 KiB
/**
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* This did:ethr resolver instructs the did-jwt machinery to use the
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* EcdsaSecp256k1RecoveryMethod2020Uses verification method which adds the recovery bit to the
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* signature to recover the DID's public key from a signature.
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*
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* This effectively hard codes the did:ethr DID resolver to use the address as the public key.
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* @param did : string
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* @returns {Promise<DIDResolutionResult>}
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*
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* Similar code resides in image-api
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*/
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export const didEthLocalResolver = async (did: string) => {
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const didRegex = /^did:ethr:(0x[0-9a-fA-F]{40})$/;
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const match = did.match(didRegex);
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if (match) {
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const address = match[1]; // Extract eth address: 0x...
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const publicKeyHex = address; // Use the address directly as a public key placeholder
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return {
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didDocumentMetadata: {},
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didResolutionMetadata: {
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contentType: "application/did+ld+json",
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},
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didDocument: {
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"@context": [
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"https://www.w3.org/ns/did/v1",
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"https://w3id.org/security/suites/secp256k1recovery-2020/v2",
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],
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id: did,
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verificationMethod: [
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{
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id: `${did}#controller`,
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type: "EcdsaSec256k1RecoveryMethod2020",
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controller: did,
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blockchainAccountId: "eip155:1:" + publicKeyHex,
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},
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],
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authentication: [`${did}#controller`],
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assertionMethod: [`${did}#controller`],
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},
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};
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}
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throw new Error(`Unsupported DID format: ${did}`);
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};
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