This Rust project demonstrates how to use CBOR, COSE, and ECIES in a single application.

• ciborium: For CBOR serialization and deserialization.
• cose: For COSE signing and encryption.
• ecies: For ECIES encryption and decryption.
• rand: For random number generation.
• serde and serde_cbor: For serializing and deserializing Rust structs to and from CBOR.
• rsa: For RSA key generation and signing.
• sha2: For SHA-256 hashing.

1. Clone the repository.
2. Run cargo build to build the project.
3. Run cargo run to execute the application.

CBOR Data: [<...>]

COSE Data: [<...>]

Signature valid: true

Decrypted Data: [<...>]

Decoded Data: MyData { name: "example", value: 42 }

• The application first serializes a Rust struct to CBOR.
• It then signs the CBOR data using COSE with RSA keys.
• It verifies the signed COSE data.
• It encrypts the CBOR data using ECIES and then decrypts it.
• Finally, it deserializes the decrypted CBOR data back into the original Rust struct..