디지털 서명이란?

Understanding digital signatures, and how they work

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What are digital signatures?

디지털 서명은 문서나 소프트웨어의 진위를 확인하는 데 사용되는 암호화 보호 기능의 집합을 말합니다.

간단히 말해 디지털 서명은 문서가 보낸 사람과 서명인 간에 전송될 때 조작되지 않았는지 확인하는 복잡한 방식이죠. 디지털 서명은 각 서명인의 신원을 확인하고 인증해 데이터의 보안과 무결성을 보장합니다.

It’s possible that you’ve heard the terms digital signature and electronic signature. While most people use the terms interchangeably, there is a difference between the two. An electronic signature refers to a protected and legally binding online signature. A digital signature refers to a complex method for authenticating a document. In simple terms, to create a digital signature is a way to verify that a document hasn’t been tampered with during transit between sender and signer.

For the most part, when searching for how to create a digital signature, people are in actual fact looking at how to create an electronic signature. HelloSign enables you to do both, at the same time.


HelloSign offers a simple, easy-to-use and free eSignature software that allows you to digitally sign documents in PDF, Word, Excel, PowerPoint and more with digital signatures embedded in them for security and protection.

How do digital signatures work?

Digital signatures work using public key cryptography. Two mathematically linked keys are generated, one public and one private. The individual creating the digital signature uses the private key, encrypting any signature-related data, whereas the signer’s public key decrypts the data. Digital signatures are authenticated only when the recipient is able to open the document with the signer’s public key. If the recipient is not able to open the document, that is a failsafe sign that there is a problem with the document or signature.

디지털 서명에 관한 자주 묻는 질문(FAQ)

How do you create a digital signature?

A digital signature is created when HelloSign’s eSignature tool provides a one-way hash of the electronic data to be signed, a fixed-length string of letters and / or numbers generated by an algorithm. This encrypted hash is the digital signature.

What are the benefits of digital signatures?


The main benefit of digital signatures is security. They ensure that a document cannot be altered without the recipient knowing about it, and that signatures are legitimate. The use of security features associated with HelloSign digital signatures such as PINs, passwords, asymmetric cryptography, audit trails and timestamps, ensures that documents sent and received for signature with HelloSign are as secure as can be.


What are digital signatures used for?


Digital signatures are used primarily to streamline processes, speed up the document signing lifecycle and improve document integrity. Industries such as government, healthcare, financial services and cryptocurrency platforms all utilize digital signatures to enhance security of highly sensitive information.

전자 서명과 디지털 서명의 차이점은 무엇인가요?


While most people use the terms interchangeably, there is a difference between the two. An electronic signature refers to a protected and legally binding online signature. A digital signature refers to a complicated method for authenticating a document.


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