The Authority goes that, without harm that the security of a system of encipherment is something which it is necessary to estimate in every moment, to date of today the algorithm of encipherment AES (in its variants of 128 bits and 256 bits), it can be considered that it fulfills the requirements of security established by the article 104 of the RLOPD. On the other hand, the tools of encipherment Adobe Acrobat XI and Winzip 17 do not present, to date of today, technical vulnerabilities without resolution.