Module pchain_types::cryptography

Cryptographic primitives like keypairs and SHA256 hashes.

Generating a Keypair

// OsRng and ChaCha are good defaults for pseudorandom number generation.
use rand::rngs::OsRng;
use rand_chacha::{ChaCha20Rng, rand_core::SeedableRng};
 
let mut osrng = OsRng{};
let mut chacha20_rng = ChaCha20Rng::from_rng(&mut osrng).unwrap();
let keypair = Keypair::generate(&mut chacha20_rng);

Traits

• Signer
  Implemented by Keypair and SecretKey to Signer::sign arbitrary bytesequences. Sign the provided message bytestring using Self (e.g. a cryptographic key or connection to an HSM), returning a digital signature.
• Verifier
  Implemented by Keypair and PublicKey to cryptographically Verifier::verify arbitrary bytesequences. Verify the provided message bytestring using Self (e.g. a public key)

Functions

• merkle_root
• sha256
  Compute the SHA256 hash over some data.

Type Definitions

• BloomFilter
  A 256-bit Bloom Filter.
• Keypair
  An Ed25519 keypair.
• PublicAddress
  Either:
• PublicKey
  An Ed25519 public key.
• SecretKey
  An Ed25519 secret key.
• Sha256Hash
  A SHA256 hash over some message.
• Signature
  An Ed25519 signature.
• SignatureBytes
  64 bytes that should be an Ed25519 signature.