Download & Decrypt

Access encrypted datasets you’re authorized to view.

Prerequisites

Connected Sui wallet
Authorization on the dataset’s allowlist

Download Process

Navigate to Dataset

Go to sealtrust.app/dataset/[id] or find the dataset in “My Datasets”.

Check Authorization

The page will show your access status:

Authorized - You can download
Not Authorized - Contact the dataset owner

Request Session Key

Click “Download & Decrypt”. This will:

Request a session key from Seal key servers
You’ll need to sign a transaction

[!NOTE] Session keys are time-limited (10 minutes by default).

Download

Once the session key is obtained:

The encrypted blob is fetched from Walrus
Decryption happens in your browser
The file downloads automatically

How It Works

Session Keys

Session keys provide temporary decryption capability:

Property	Value
TTL	10 minutes (default)
Scope	Single dataset
Storage	Browser memory

Troubleshooting

”Not Authorized”

You’re not on the dataset’s allowlist. Contact the dataset owner to request access.

”Session Key Failed”

Ensure your wallet is connected
Check you’re on the correct network (testnet)
Try refreshing the page

”Download Failed”

Check your internet connection
The blob may have expired on Walrus
Try again in a few moments

Programmatic Access


import { SealClient } from '@mysten/seal';
 
// Create session key
const sessionKey = await sealClient.createSessionKey({
  address: walletAddress,
  packageId: SEAL_PACKAGE_ID,
  ttlMin: 10,
});
 
// Fetch encrypted blob
const encryptedData = await fetch(
  `${WALRUS_AGGREGATOR}/v1/blobs/${blobId}`
).then(r => r.arrayBuffer());
 
// Decrypt
const decrypted = await sealClient.decrypt({
  data: new Uint8Array(encryptedData),
  sessionKey,
  txBytes,
});

Download Process

Navigate to Dataset

Go to sealtrust.app/dataset/[id] or find the dataset in “My Datasets”.

Check Authorization

The page will show your access status:

Authorized - You can download
Not Authorized - Contact the dataset owner

Request Session Key

Click “Download & Decrypt”. This will:

Request a session key from Seal key servers
You’ll need to sign a transaction

[!NOTE] Session keys are time-limited (10 minutes by default).

Download

Once the session key is obtained:

The encrypted blob is fetched from Walrus
Decryption happens in your browser
The file downloads automatically

Property

Value

TTL

10 minutes (default)

Scope

Single dataset

Storage

Browser memory

Troubleshooting

”Not Authorized”

You’re not on the dataset’s allowlist. Contact the dataset owner to request access.

”Session Key Failed”

Ensure your wallet is connected

Check you’re on the correct network (testnet)

Try refreshing the page

”Download Failed”

Check your internet connection

The blob may have expired on Walrus

Try again in a few moments

Programmatic Access


import { SealClient } from '@mysten/seal';
 
// Create session key
const sessionKey = await sealClient.createSessionKey({
  address: walletAddress,
  packageId: SEAL_PACKAGE_ID,
  ttlMin: 10,
});
 
// Fetch encrypted blob
const encryptedData = await fetch(
  `${WALRUS_AGGREGATOR}/v1/blobs/${blobId}`
).then(r => r.arrayBuffer());
 
// Decrypt
const decrypted = await sealClient.decrypt({
  data: new Uint8Array(encryptedData),
  sessionKey,
  txBytes,
});