HybridPublicKeyEncryption

saorsa_core

Struct HybridPublicKeyEncryption 

Source 
pub struct HybridPublicKeyEncryption { /* private fields */ }
Expand description

Hybrid Public Key Encryption using ML-KEM and AES-GCM

Provides CCA2-secure public key encryption by combining:

  • ML-KEM-768 for key encapsulation
  • AES-256-GCM for data encryption
  • HKDF for key derivation

Implementations§

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impl HybridPublicKeyEncryption

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pub const fn new() -> HybridPublicKeyEncryption

Create a new hybrid encryption instance

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pub fn generate_keypair( &self, ) -> Result<(MlKemPublicKey, MlKemSecretKey), PqcError>

Generate a new keypair for hybrid encryption

§Errors

Returns PqcError if keypair generation fails

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pub fn encrypt( &self, public_key: &MlKemPublicKey, plaintext: &[u8], associated_data: &[u8], ) -> Result<EncryptedMessage, PqcError>

Encrypt a message using the hybrid scheme

§Arguments
  • public_key - Recipient’s ML-KEM-768 public key
  • plaintext - Message to encrypt
  • associated_data - Additional authenticated data (not encrypted)
§Returns

An EncryptedMessage containing all components needed for decryption

§Errors

Returns PqcError if encapsulation or encryption fails

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pub fn decrypt( &self, secret_key: &MlKemSecretKey, encrypted_message: &EncryptedMessage, associated_data: &[u8], ) -> Result<Vec<u8>, PqcError>

Decrypt a message using the hybrid scheme

§Arguments
  • secret_key - Recipient’s ML-KEM-768 secret key
  • encrypted_message - The encrypted message to decrypt
  • associated_data - Additional authenticated data for verification
§Returns

The decrypted plaintext if successful

§Errors

Returns PqcError::DecryptionFailed if AAD verification fails or AES-GCM decryption fails. Returns PqcError::CryptoError if HKDF expansion fails.

Trait Implementations§

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impl Default for HybridPublicKeyEncryption

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fn default() -> HybridPublicKeyEncryption

Returns the “default value” for a type. Read more

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