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Green 24: generate filterId by encrypt random 16 bytes + timestamp with sha256 #9

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merged 1 commit into from
Apr 24, 2024
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Green 24: generate filterId by encrypt random 16 bytes + timestamp with sha256 #9

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6 changes: 4 additions & 2 deletions src/utils.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@ import {
Account2,
} from './types'
import Sntp from '@hapi/sntp'
import { randomBytes, createHash } from 'crypto'

crypto.init('69fa4195670576c0160d660c3be36556ff8d504725be8a59b5a96509e0c994bc')

Expand Down Expand Up @@ -1037,8 +1038,9 @@ export async function getTransactionReceipt(hash: string) {
*/

export function getFilterId(): string {
// todo: use a better way to generate filter id
return '0x' + Math.round(Math.random() * 1000000000).toString(16)
return '0x' + createHash('sha256')
.update(randomBytes(16).toString('hex') + Date.now())
.digest('hex')
}

export function parseFilterDetails(filter: Filter): { address: string; topics: string[] } {
Expand Down
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