Digital signature: What is it, how does it work, differences electronic signature


The era in which the actual existence of a person is essential to give legal effect to documents or verify property rights is over. The technological developments that we have experienced in recent years have been so amazing that advances in the digital age have replaced the requirements for the certification and accreditation of legal documents.
We enter the identification of the digital signature. Proving the identity of the signer no longer requires a handwritten signature. Today, digital signatures can be verified to verify the authenticity of documents, software or digital messages and to identify the original entity.

What is the digital signature

It is a remote authentication mechanism presented in digital format. It was created using mathematical formulas based on unique and confidential encryption techniques and algorithms to fix the identity of the signer to their digital property.
In this way, an unalterable code is generated, which is transmitted by the computer from the sender of the message to the receiver. With this code, the authenticity and integrity of the message and post entity can be verified.
How digital signatures work
The digital signature is legal. They are a digital security tool used to protect documents in electronic format by encrypting the identity data of the author of the document.
They allow to verify that the digital content is authentic and its publisher is authentic. It does not admit denial, that is, the sender denies the authenticity of the information that is distributed from the source and maintains the integrity of the shared content, verifying that it has not been modified in the exchange of the signature to the receiver.
Its operation is based on a computer security system called asymmetric key cryptography or public and private keys (two keys linked mathematically). The private key is used to encrypt the message when it is sent. The public key is used to decrypt the message when it is received.
Sign messages, documents or computer content by generating a private key. Once the public key decrypts the information, the signature algorithm is used to verify the authenticity of the information.
The difference between digital signature and electronic signature

Digital signatures should not be confused with so-called electronic signatures. Although all digital signatures are electronic signatures, not all electronic signatures are digital signatures. The difference between digital signature and electronic signature is:
An electronic signature means the willingness to accept the content of the document linked to the signature. The law replaces the traditional handwritten signature. Its legal nature establishes the obligations of the signatory before signing the terms of the document.
A digital signature is an electronic signature that can be used as a certificate to verify the identity of the signer. It is a computer security mechanism that can verify documents to the greatest extent possible. It does not accredit legal actions, it only encrypts the file data, protects it with the highest level of security, and prevents it from being modified after being signed.

Create your own digital signature

Free apps like Docsketch, MyLiveSignature and Mobilefish allow you to create your own digital signature right from their online interface and save it in different image formats. If you are looking for a more reliable alternative, you can use the Adobe Sign app to create your own digital signature in PDF format. There is a trial version on their website.

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