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‎examples/basic_bls_signing/README.md‎

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# Basic BLS Signing
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[![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/basic_bls_signing/motoko)
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The **Basic BLS signing** example demonstrates how to use **[vetKeys](https://internetcomputer.org/docs/building-apps/network-features/vetkeys/introduction)** to implement secure BLS signing on the **Internet Computer (IC)**, where every authenticated user can ask the canister (IC smart contract) to produce signatures, where the **Internet Identity Principal** identifies the signer. This canister ensures that users can only produce signature for their own principal and not for someone else's principal. Furthermore, the vetKeys in this dapp can only be produced upon a user request, as specified in the canister code, meaning that the canister cannot produce signatures for arbitrary users or messages.
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For confirming that the canister can only produce signatures in the intended way, users need to inspect the code installed in the canister. For this, it is crucial that canisters using VetKeys have their code public.

‎examples/basic_timelock_ibe/README.md‎

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# Basic Timelock Identity Based Encryption
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[![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/basic_timelock_ibe)
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The **Basic Timelock IBE** example demonstrates how to use **[VetKeys](https://internetcomputer.org/docs/building-apps/network-features/vetkeys/introduction)** to implement a secret-bid auction using Identity Based Encryption (IBE) on the **Internet Computer (IC)**. This application allows users authenticated with their **Internet Identity Principal** to create auction lots with a description and deadline, and other users to place a secret bid for the lot. The bids in this example are just dummy integer values, contrary to real-world use cases where users would place bids holding some value.
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This canister (IC smart contract) ensures that:

‎examples/encrypted_notes_dapp_vetkd/README.md‎

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# Encrypted notes: vetKD
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| Motoko backend | [![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/encrypted_notes_dapp_vetkd/motoko)|
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| Rust backend | [![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/encrypted_notes_dapp_vetkd/rust) |
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This is a copy of the [`encrypted-notes-dapp` example](https://github.com/dfinity/examples/tree/master/motoko/encrypted-notes-dapp), adapted to use [vetKeys](https://internetcomputer.org/docs/building-apps/network-features/vetkeys/introduction) and add sharing of notes between users.
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In particular, instead of creating a principal-specific AES key and syncing it across devices (using device-specific RSA keys), the notes are encrypted with an AES key that is derived (directly in the browser) from a note-ID-specific vetKey obtained from the backend canister (in encrypted form, using an ephemeral transport key), which itself obtains it from the vetKD system API. This way, there is no need for any device management in the dapp, plus sharing of notes becomes possible.

‎examples/password_manager/README.md‎

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# VetKey Password Manager
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| Motoko backend | [![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/password_manager/motoko)|
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| Rust backend | [![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/password_manager/rust) |
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The **VetKey Password Manager** is an example application demonstrating how to use **VetKeys** and **Encrypted Maps** to build a secure, decentralized password manager on the **Internet Computer (IC)**. This application allows users to create password vaults, store encrypted passwords, and share vaults with other users via their **Internet Identity Principal**.
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## Features

‎examples/password_manager_with_metadata/README.md‎

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# VetKey Password Manager with Metadata
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| Motoko backend | [![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/password_manager_with_metadata/motoko)|
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| Rust backend | [![](https://icp.ninja/assets/open.svg)](http://icp.ninja/editor?g=https://github.com/dfinity/vetkeys/tree/main/examples/password_manager_with_metadata/rust) |
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The **VetKey Password Manager** is an example application demonstrating how to use **VetKeys** and **Encrypted Maps** to build a secure, decentralized password manager on the **Internet Computer (IC)**. This application allows users to create password vaults, store encrypted passwords, and share vaults with other users via their **Internet Identity Principal**.
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This version of the application extends the basic password manager by supporting unencrypted metadata, such as URLs and tags, alongside encrypted passwords. The goal is to demonstrate how to make atomic updates to the Encrypted Maps canister, storing both encrypted and unencrypted data in a single update call.

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