arkvault/src/lib/constants/upload.ts

export const AES_GCM_IV_SIZE = 12;
export const AES_GCM_TAG_SIZE = 16;
export const ENCRYPTION_OVERHEAD = AES_GCM_IV_SIZE + AES_GCM_TAG_SIZE;

export const CHUNK_SIZE = 4 * 1024 * 1024; // 4 MiB
export const ENCRYPTED_CHUNK_SIZE = CHUNK_SIZE + ENCRYPTION_OVERHEAD;