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use randomness to generate throw away dsc secret

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This commit is contained in:
turnoffthiscomputer
2024-06-30 22:43:31 +02:00
parent 83d24fb449
commit aedbd79491
14 changed files with 69 additions and 15 deletions
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6
common/src/utils/csca.ts
View File

@@ -37,7 +37,7 @@ export function findStartIndex(modulus: string, messagePadded: Uint8Array): numb
return startIndex;
}
export function getCSCAInputs(dscCertificate: any, cscaCertificate: any = null, n_dsc: number, k_dsc: number, n_csca: number, k_csca: number, max_cert_bytes: number, devmod: boolean = false) {
export function getCSCAInputs(dscSecret: string, dscCertificate: any, cscaCertificate: any = null, n_dsc: number, k_dsc: number, n_csca: number, k_csca: number, max_cert_bytes: number, devmod: boolean = false) {
let csca_modulus_formatted;
let csca_modulus_bigint;
// the purpose of devmode is to get the csca modulus from the mock_csca certificate instead of using the registry which parses aki to csca modulus
@@ -117,6 +117,8 @@ export function getCSCAInputs(dscCertificate: any, cscaCertificate: any = null,
const [root, proof] = getCSCAModulusProof(leaf, n_csca, k_csca);
return {
"raw_dsc_cert": dsc_message_padded_formatted,
"raw_dsc_cert_padded_bytes": [dsc_messagePaddedLen_formatted],
@@ -124,7 +126,7 @@ export function getCSCAInputs(dscCertificate: any, cscaCertificate: any = null,
"dsc_signature": dsc_signature_formatted,
"dsc_modulus": dsc_modulus_formatted,
"start_index": [startIndex_formatted],
"secret": [BigInt(0).toString()],
"secret": [dscSecret],
"merkle_root": [BigInt(root).toString()],
"path": proof.pathIndices.map(index => index.toString()),
"siblings": proof.siblings.flat().map(sibling => sibling.toString())

3
common/src/utils/generateInputs.ts
View File

@@ -18,6 +18,7 @@ import {
export function generateCircuitInputsRegister(
secret: string,
dscSecret: string,
attestation_id: string,
passportData: PassportData,
n_dsc: number,
@@ -105,7 +106,7 @@ export function generateCircuitInputsRegister(
BigInt(k_dsc)
),
attestation_id: [attestation_id],
dsc_secret: [BigInt(0).toString()]
dsc_secret: [dscSecret]
};
}