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Social Graph: read-only state sync with primary device

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Josh Perez 2020-07-06 20:56:56 -04:00 • committed by Scott Nonnenberg
parent 12745a2c79
commit 8502d23576
19 changed files with 1035 additions and 57 deletions
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14
ts/Crypto.ts
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@ -184,6 +184,20 @@ export async function decryptFile(
return decryptSymmetric(key, ciphertext);
}
export async function deriveStorageManifestKey(
storageServiceKey: ArrayBuffer,
version: number
) {
return hmacSha256(storageServiceKey, bytesFromString(`Manifest_${version}`));
}
export async function deriveStorageItemKey(
storageServiceKey: ArrayBuffer,
itemID: string
) {
return hmacSha256(storageServiceKey, bytesFromString(`Item_${itemID}`));
}
export async function deriveAccessKey(profileKey: ArrayBuffer) {
const iv = getZeroes(12);
const plaintext = getZeroes(16);