An electronic signature or signature refers to electronic data that is logically linked to other electronic data and is used by the signatory to sign.    This type of signature confers the same legal position as a handwritten signature, provided it meets the requirements of the specific regulation under which it was created (for example. B, eIDAS in the European Union, NIST-DSS in the United States or ZertES in Switzerland).   In the modern world, everything has become digital over time. From online shopping to the automation of complex business functions, everything is now digital and laying the foundation for our future. One of the things that has become popular are electronic signatures or electronic signatures. Beyond consumer protection, you understand that while E-SIGN and UTEA encourage and protect the use of electronic contracts and signatures, they do not require anyone to use or sign them if they prefer paper.  For example, when we did the Sabre IPO and the sale of Marketo to Adobe, I had to sign my name (wet signatures) hundreds of times. Electronic signatures could not be used for this type of document. All I can say is that it stops having fun after the 50th time you sign your name.  These are just companies that I know and have used in many cases in the past.
But I have nothing to list them here. I just think they would all be worthy to check if your department/your company needs an electronic signature solution. For a more detailed list, see www.trustradius.com/electronic-signature. In all countries where electronic signatures are legally binding, their legal status depends on the ability to prove these three elements: the legal value of an electronic signature depends on the person who used it, the identity of that person and the fact that the signed data did not change after the signing. Indeed, for the first time, a U.S. court upheld an electronic signature in 1869 (!), when the New Hampshire Supreme Court found that a „signed“ telegraph message was a valid contract: in 1996, the United Nations issued the UNI Model E-Commerce Act.  Section 7 of UNCITRAL`s e-commerce model law has been very influential in the development of electronic signature laws around the world, including in the United States.  In 2001, UNCITRAL completed its work on a specific text, the unCIR LOI model law on electronic signatures, which was adopted in some 30 jurisdictions.  The latest uncedIA text, which deals with electronic signatures, is Article 9, paragraph 3, of the UN Convention on the Use of Electronic Communications in International Contracts in 2005, which establishes a mechanism for functional equivalence of electronic and manuscript signatures at the international level and cross-border recognition. The main standards for digital signatures in terms of the size of national markets are the National Institute of Standards and Technology (NIST) DSS  and the eIDAS regulation adopted by the European Parliament.  OpenPGP is a non-proprietary protocol for encrypting cryptography emails with public keys.
It is supported by PGP and GnuPG, and some of the S/MIME IETF standards, and has become the world`s most popular email encryption standard.  Electronic signatures are increasingly secure, each having its own needs and creative means at different levels demonstrating the validity of the signature.