Types of Electronic or Digital Signatures

Three signature levels—SES, AES, QES—each offering different trust and security.

There are three main types of e-signatures: SES, AES, QES.

Simple Electronic Signatures (SES)

  • Typing a name, clicking “I Agree,” or inserting a signature image

  • Confirms intent but does not verify identity or protect against tampering

  • No special tools or integrity checks needed

Example: Approving an internal memo.

Advanced Electronic Signatures (AES)

  • Linked uniquely to the signer and includes verification methods:

    • OTP

    • Biometrics (fingerprint, face ID)

  • Detects modifications (signature becomes invalid if changed)

  • Requires a secure e-signing platform like emSigner

Example: Signing a vendor contract or NDA.

Qualified Electronic Signatures (QES)

  • Highest level of security and legal recognition

  • Uses DSC issued by licensed Certifying Authority (e.g., eMudhra)

  • Legally equivalent to handwritten signatures under many regulations

  • Performs cryptographic integrity checks

Example: Filing government forms, legal contracts, regulated financial statements.

Note: SES may be valid, but AES and QES are recommended for sensitive/regulated use.

PreviousElectronic and Digital SignaturesNextParticipants

Last updated