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Legally Valid

Electronic Signature

Sign documents digitally with legal validity under Thai law

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Digital Signing Overview

Paperless

Sign documents anywhere, anytime without paper

Secure

Protected by encryption technology

Legal

Legally binding under Thai law

Public Key Infrastructure

Four key components ensure trust and security

End Entity

Certificate applicant

โ†’

Registration Authority

Identity verification

โ†’

Certification Authority

Issues certificates

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Repository

Certificate storage

Authentication
Data Confidentiality
Data Integrity
Non-repudiation

Digital Certificate

Digital Certificate Verified
Public Key RSA 2048-bit
CA Signature SHA-256
Password Only

Something you know

Certificate + Password

Something you have + know

Types of E-Signature

1

Basic E-Signature

Simple identification methods

  • Username/Password
  • OTP
  • Email signature
Trust Level 33%
2

Trusted E-Signature

With encryption and change detection

  • Linked to owner
  • Under owner control
  • Detects changes
Trust Level 66%

Legal & Security

Your digital signature is legally binding

Legally Valid

Same legal effect as handwritten signature

Long Validity

Certificates valid for years

All Documents

Works for most document types