h) the secure electronic signature of the electronic certification service provider issuing the electronic certificate; (i) where applicable, the conditions of use of the electronic certificate, including the maximum amount of transactions for which that certificate may be used. Section 2: Cryptography Article 12: The purpose of the cryptographic means is to guarantee the security of the exchange and / or the storage of legal data by electronic means, so as to ensure their confidentiality, their authentication and the control of their integrity. Cryptography means any hardware and / or software designed or modified to transform data, whether it is information, signals or symbols, using secret conventions or to perform the reverse operation, with or without a secret convention. The term "cryptography service" means any operation for the use, on behalf of others, of cryptographic means. Article 13: In order to prevent the use for illegal purposes and to preserve the interests of national defense and internal or external security of the State, the import, export, supply, exploitation or use of means or services of cryptography are subject to: (a) a prior declaration, where the sole purpose of the means or service is to authenticate a transmission or to ensure the completeness of the data transmitted by electronic means; (b) with the prior authorization of the administration, in the case of a purpose other than that referred to in paragraph (a) above. The government sets: 1. the means or services fulfilling the criteria referred to in paragraph (a) above. 2. the conditions under which the declaration and the authorization are subscribed, referred to in the preceding paragraph. The Government may provide for a simplified declaration or authorization regime or the exemption from the declaration or authorization for certain types of cryptographic means or services or for certain categories of users. Article 14: The provision of means or services of cryptography subject to authorization is reserved for electronic certification service providers, approved for this purpose in accordance with the provisions of article 21 of this law. Failing this, the persons who intend to provide cryptography services subject to authorization must be approved for this purpose by the administration. Chapter II: Certification of the electronic signature Section 1: National Certification and Surveillance Authority for Electronic Certification