ParagonIE_Sodium_Compat::crypto_box( string $plaintext, string $nonce, string $keypair ): string

1325    public static function crypto_box(1326        $plaintext,1327        $nonce,1328        #[\SensitiveParameter]1329        $keypair1330    ) {1331        /* Type checks: */1332        ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);1333        ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);1334        ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 3);1335 1336        /* Input validation: */1337        if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_BOX_NONCEBYTES) {1338            throw new SodiumException('Argument 2 must be CRYPTO_BOX_NONCEBYTES long.');1339        }1340        if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {1341            throw new SodiumException('Argument 3 must be CRYPTO_BOX_KEYPAIRBYTES long.');1342        }1343 1344        if (self::useNewSodiumAPI()) {1345            return (string) sodium_crypto_box($plaintext, $nonce, $keypair);1346        }1347        if (self::use_fallback('crypto_box')) {1348            return (string) call_user_func('\\Sodium\\crypto_box', $plaintext, $nonce, $keypair);1349        }1350        if (PHP_INT_SIZE === 4) {1351            return ParagonIE_Sodium_Crypto32::box($plaintext, $nonce, $keypair);1352        }1353        return ParagonIE_Sodium_Crypto::box($plaintext, $nonce, $keypair);1354    }