Electronic signature vs digital signature: what’s the difference?
The two terms are often used as if they mean the same thing. They don’t. Here’s the difference in plain English, and how to tell which one a document needs.
| Electronic signature | Digital signature | |
|---|---|---|
| What it is | Any electronic way of agreeing: drawing, typing, clicking | A cryptographic method using a certificate tied to the signer |
| Identity | Usually shown by email access, IP address and audit trail | Verified by a certificate authority before the certificate is issued |
| Tamper evidence | Depends on the service (mndok uses hashes and a chained audit trail) | Built into the signature itself |
| Cost and effort | Low: signers just click a link | Higher: signers need a certificate, token or ID-based service |
| Typical use | Contracts, NDAs, offer letters, approvals, forms | Government filings, regulated documents, some cross-border deals |
Electronic signatures
An electronic signature is any electronic sound, symbol or process a person uses to agree to a document. Laws such as the US ESIGN Act and the EU’s eIDAS Regulation say such signatures can’t be refused just because they’re electronic. What makes them hold up is evidence: consent to sign electronically, who signed, when, and proof the document hasn’t changed.
Digital signatures
A digital signature uses public-key cryptography. The signer has a certificate issued by a trusted certificate authority; signing creates a value that only their private key could produce and that breaks if the document changes. PDF readers can check it automatically.
The EU’s three levels
eIDAS defines simple (SES), advanced (AES) and qualified (QES) electronic signatures. AES and QES are typically certificate-based; a QES has the same legal effect as a handwritten signature across the EU.
In India
The Information Technology Act, 2000 recognises signatures made with digital signature certificates (DSC) from licensed certifying authorities and Aadhaar-based eSign. Simple electronic signatures are widely used for commercial agreements and rely on evidence. See free e-signatures in India.
Which do you need?
For most business agreements, a simple electronic signature with a strong audit trail is enough. If a law, regulator, court or the other party requires a certificate-based or qualified signature, use a provider that issues them.
Quick answers
Is a digital signature the same as an electronic signature?
No. “Electronic signature” is the broad term for any electronic way of agreeing to a document. A “digital signature” is a specific technical method that uses a certificate and cryptography to bind a signature to the document and signer.
Which one is legally stronger?
Certificate-based signatures, and especially qualified ones under EU law or DSC and Aadhaar eSign in India, carry stronger legal presumptions. Simple electronic signatures are valid for most everyday agreements but rely more on surrounding evidence.
What kind of signature does mndok create?
Simple electronic signatures, backed by consent capture, a hash-chained audit trail and a SHA-256 fingerprint of the signed pages. mndok doesn’t issue certificate-based digital signatures.
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