Module crypto 

AES-GCM256 cryptography primitives for encrypting and decrypting data in the HydraSync protocol.

Constants

NONCE_LEN

TAG_LEN

Functions

decrypt_data

Decrypt data that was encrypted with encrypt_data, returns the original plaintext or an error if decryption fails.

decrypt_into

Decrypt input (which should be in the format produced by encrypt_into) into output using AES-256-GCM with the provided 32-byte key. The output buffer must be input.len() - NONCE_LEN - TAG_LEN bytes, returns the number of bytes written to output (the length of the decrypted plaintext) or an error if decryption fails.

encrypt_data

Encrypt data with a 32-byte key using AES-256-GCM, returns a byte vector containing the nonce, ciphertext, and tag or an error if encryption fails.

encrypt_into

Encrypt input into output using AES-256-GCM with the provided 32-byte key. The output buffer must be at least input.len() + NONCE_LEN + TAG_LEN bytes long, returns the total number of bytes written to output (nonce + ciphertext + tag) or an error if encryption fails.

generate_x25519_keypair

Generates and returns a new X25519 keypair (private_key, public_key)