The Amazing Invisible SIGNATURE??!@$^&*<:"{}|

Have you ever asked why we have to sign? How is the history? Signing has long been a way for humans to leave their identity, as well as validate or prove something. From sending letters, receiving payments, issuing documents and so on. Measure, we name one as a signature. The exact cause why humans sign signatures is not known for sure. Even so, in various ancient civilizations, leaving marks became common practice. Summarized from various sources, even though it is not written like a signature, a number of civilizations in various parts of the earth have done it. At least, ancient Egyptians and Sumerians in 300 BC used a number of symbols and images (pictographs) as a sign of identity. In the past, signatures that are closer to what we know them today can be traced back to ancient Greece and Rome. The Romans are known to use signatures since at least around 439. It is also said that at that time artists competed to collect signatures from famous or high-ranking people to increase the value of their work. In the process of ratifying and inaugurating a document, signature is one of the mandatory requirements required. However, there are times when the document signing process experiences distance and time constraints. You have to pay more to pay for the courier, it takes longer, and the security is not fully guaranteed. Because of this, many institutions, both government and private, are starting to switch to digital signatures to make it easier to validate documents and safeguard documents from the risk of misuse. The digital signature itself is not just a wet signature which is then scanned into an electronic device. A digital signature is a signature that is completely carried out in an electronic device. However, the history of creating digital signatures itself began long before the existence of sophisticated electronic devices such as computers, smartphones, or tablets like the ones we have today. The history of digital signatures began in 1976, when Whitfield Di ffi e and Martin Hellman, who were cryptographers from the United States, started to come up with a digital signature scheme. Not long after, 3 math and cryptology experts at MIT, namely Ronald Rivest, Adi Shamir, and Len Adleman created the RSA (Rivest-Shamir-Adleman) algorithm which was used to create digital signatures for the first time. However, this RSA algorithm is only a concept that does not guarantee the safety of its users.