# Traceva Drop

**File Encryption Standards and zkProof-Based Access Control**

Traceva Drop employs advanced encryption standards (AES-256, asymmetric cryptography) combined with zk-based cryptographic proofs for secure, decentralized file storage. Access to stored files is strictly controlled through cryptographic verifications, ensuring only authorized users can retrieve specific data.

```javascript
import { create } from 'ipfs-http-client'
const ipfs = create({ url:'https://ipfs.infura.io:5001/api/v0' })
const { cid } = await ipfs.add(new Blob(['hello traceva']))

```

#### **Mechanisms for Time-locking, Self-destruction, and Single-use Access**

Traceva Drop allows users to define sophisticated file accessibility conditions, including time-locking (restricting access until a predefined time), automatic file self-destruction upon access or expiry, and single-use retrievals. These granular controls significantly enhance file privacy, security, and confidentiality.

#### **Decentralized Storage Integration (IPFS, Filecoin, Arweave)**

Files managed via Traceva Drop are securely stored using decentralized storage networks, including IPFS, Filecoin, and Arweave. Leveraging these robust, censorship-resistant platforms ensures reliable, permanent, and private file storage.

```solidity
import Arweave from 'arweave'
const arweave = Arweave.init({ host:'arweave.net',protocol:'https',port:443 })
const tx = await arweave.createTransaction({ data: Buffer.from('secret') }, key)
tx.addTag('Content-Type','text/plain'); await arweave.transactions.sign(tx, key)
await arweave.transactions.post(tx)
```

#### **Use Cases: Confidential Documents, Medical Records, DAO Proposals**

Traceva Drop supports storage and distribution of highly confidential documents such as medical records, DAO governance proposals, legal files, and sensitive corporate information, delivering privacy-compliant, secure, and tamper-proof access solutions.