<?php
declare(strict_types=1);
namespace ParagonIE\Halite\Contract;
use ParagonIE\Halite\Asymmetric\EncryptionPublicKey;
use ParagonIE\Halite\Asymmetric\EncryptionSecretKey;
use ParagonIE\Halite\Asymmetric\SignaturePublicKey;
use ParagonIE\Halite\Asymmetric\SignatureSecretKey;
/**
* An interface fundamental to all cryptography implementations
*/
interface AsymmetricKeyCryptoInterface
{
/**
* Diffie-Hellman, ECDHE, etc.
*
* Get a shared secret from a private key you possess and a public key for
* the intended message recipient
*
* @param KeyInterface $privateKey
* @param KeyInterface $publicKey
*
* @return string
*/
public static function getSharedSecret(
KeyInterface $privateKey,
KeyInterface $publicKey,
bool $get_as_object = false
);
/**
* Encrypt a string using asymmetric cryptography
* Seal then sign
*
* @param string $source Plaintext
* @param EncryptionSecretKey $privatekey Our private key
* @param EncryptionPublicKey $publickey Their public key
* @param boolean $raw Don't hex encode the output?
*
* @return string
*/
public static function encrypt(
string $source,
EncryptionSecretKey $privateKey,
EncryptionPublicKey $publicKey,
bool $raw = false
): string;
/**
* Decrypt a string using asymmetric cryptography
* Verify then unseal
*
* @param string $source Ciphertext
* @param EncryptionSecretKey $privatekey Our private key
* @param EncryptionPublicKey $publickey Their public key
* @param boolean $raw Don't hex decode the input?
*
* @return string
*/
public static function decrypt(
string $source,
EncryptionSecretKey $privateKey,
EncryptionPublicKey $publicKey,
bool $raw = false
): string;
/**
* Encrypt a message with a target users' public key
*
* @param string $source Message to encrypt
* @param EncryptionPublicKey $publicKey
* @param boolean $raw Don't hex encode the output?
*
* @return string
*/
public static function seal(
string $source,
EncryptionPublicKey $publicKey,
bool $raw = false
): string;
/**
* Decrypt a sealed message with our private key
*
* @param string $source Encrypted message (string or resource for a file)
* @param EncryptionSecretKey $privateKey
* @param boolean $raw Don't hex decode the input?
*
* @return string
*/
public static function unseal(
string $source,
EncryptionSecretKey $privateKey,
bool $raw = false
): string;
/**
* Sign a message with our private key
*
* @param string $message Message to sign
* @param SecretKey $privateKey
* @param boolean $raw Don't hex encode the output?
*
* @return string Signature (detached)
*/
public static function sign(
string $message,
SignatureSecretKey $privateKey,
bool $raw = false
): string;
/**
* Verify a signed message with the correct public key
*
* @param string $message Message to verifyn
* @param PublicKey $publicKey
* @param string $signature
* @param boolean $raw Don't hex decode the input?
*
* @return boolean
*/
public static function verify(
string $message,
SignaturePublicKey $publicKey,
string $signature,
bool $raw = false
): bool;
}
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