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What is the Advanced Electronic Signature?
Advanced Electronic Signature is a set of data that are attached to a electronic message, the purpose is to identify the sender of the message as legitimate author of this as if it were a autograph signature.

Due to its characteristics, the Advanced Electronic Signature gives security for electronic transactions of taxpayers, with its use can be identified the author of the message and verify that it has not been modified.

Its design is based on international standards of public key infrastructure (PKI for its acronym in English: Public Key Infrastructure) where two keys are used for sending messages.

The private key is known only by the owner of the Advanced Electronic Signature, used to encrypt data, and the public key, available online for consultation by all users of electronic services, with which data is decrypted. In computer terms is impossible to decrypt a message using a key that does not correspond.