Technical information


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(Intellectual property of ANF AC. Legal deposit -DL B29364-2005). 
Main qualities:
•    Interpretable to the human eye, it gives security and confidence to the signatory and to the third party who receives it.
•    It incorporates detailed information of the elements necessary to be used as legal evidence by jurists.
•    Smart Document. Easily selectable multi-language in layers.
•    Only signature that provides the option to the signatory to include as in the paper support "mentions or exceptions".
•    Possibility of being printed on paper, without losing the possibility of verification (Graphic Marks).
•    Ability to include in the signature document, powers of attorney or authenticated mandates.
Section 3. Recognized electronic signature is considered the advanced electronic signature based on a recognized certificate and generated by means of a secure signature creation device.
Section 4. The recognized electronic signature shall have the same value as the handwritten signature with respect to the data entered in electronic form in relation to those recorded on paper.”
(Intellectual property of ANF AC. Legal deposit -DL B29364-2005). 
As its name indicates, it is an electronic signature that is readable to the human eye. 
The signature is created in *.pdf format and per the CAdES XL standard. The legible record is signed in accordance with the PAdES XL standard. Interoperable with Adobe Acrobat Reader ®.
The Interpretable Electronic Signature, as well as the qualified electronic signature, if it is generated with a qualified certificate and a secure signature creation device, it meets all the requirements to be considered as a Qualified Electronic Signature; therefore, it is comparable to the handwritten signature.
“Section 2. The advanced electronic signature is the electronic signature that allows to identify the signer and detect any subsequent changes of the signed data, which is linked to the signatory in a unique way and to the data to which it refers and which has been created by means that the signer can use , With a high level of confidence, under its exclusive control.”
Law 59/2003 on Electronic Signature of Spain establishes (Article 18) the obligation of the Certification Services Providers of:
"Point b) 2º Report on the mechanisms to guarantee the reliability of the electronic signature of a document over time ".
The signature format determines how the signature document is generated, and how the information is structured in the generated document.
Spanish Law 59/2003 on Electronic Signature establishes in its article 24:
“1. Signature creation data are unique data, such as private cryptographic codes or keys, which the signer uses to create the electronic signature.
2. A signature creation device is a computer program or system that is used to apply signature creation data.
3. A secure signature creation device is a signature creation device that offers at least the following guarantees:”
a) That the data used for signature generation can be produced only once and reasonably ensures its secrecy.
b) That there is reasonable assurance that the data used for signature generation cannot be derived from signature verification or from the signature itself, and that the signature is protected against counterfeiting with the existing technology at all times.
c) That the signature creation data can be reliably protected by the signer against its use by third parties.
d) That the device used does not alter the data, the document to be signed or prevents it from being shown to the signer before the signing process.
Mainly, the secure device must guarantee that the keys are unique and secret, that the private key cannot be deduced from the public key and vice versa, that the signer can reliably protect the keys, that the contents of the original document are not altered and that the signatory can see what it is going to sign.
From a technical point of view, according to article 27 of Spanish Law 59/2003, a secure signature device must be certified in accordance with the above characteristics per the technical standards published by the European Commission.
Spanish Law 59/2003, on Electronic Signature establishes in its article 3:
“5. Electronic document is considered information of any nature in electronic form, filed in an electronic storage, according to a specific format, and susceptible of identification and differential treatment.”