Elgamal Digital Signature With SignNow
Award-winning eSignature solution
What an Elgamal digital signature is
An Elgamal digital signature is a cryptographic method for proving who signed a document and whether the document changed after signing. It uses asymmetric keys: a private key creates the signature, and a public key verifies it. In practice, the signer hashes the message, applies the signing algorithm, and shares the signature with the record. The verifier checks the signature against the public key and the document hash. That process supports integrity, attribution, and non-repudiation in U.S. electronic workflows.
Why it matters for U.S. signatures
It helps organizations prove intent, preserve document integrity, and reduce dispute risk. Under ESIGN and UETA, an electronic signature can be enforceable when attribution and consent are documented, and a strong audit trail supports that outcome.
Common implementation challenges
Key management can fail if private keys are stored without strong access controls or recovery procedures. Weak authentication makes it harder to prove that the signer, and not another person, approved the record. Poor hash handling can break verification if the document changes after the signature is applied. Missing audit evidence can weaken enforceability when a party disputes intent, timing, or document integrity.
Who uses it and where
Real estate
Real estate teams use it for lease packets, disclosures, and closing forms that need fast turnaround.
Healthcare
Healthcare organizations use it for patient forms, consent records, and HIPAA workflows with audit trails.
Typical users and personas
A director of NetSuite operations at a large manufacturer may use signNow to route approvals through ERP-connected workflows, keep signatures tied to the right records, and reduce manual follow-up across finance and operations teams. The NetSuite integration helps preserve document context while supporting controlled access and auditability. A COO at a growth-stage investment firm may use signNow to standardize signature collection for client-facing agreements, internal approvals, and compliance records. The simple interface and mobile signing support help teams move documents faster while keeping a clear signing history for review and retention.
Best ROI. Our customers achieve an average 7x ROI within the first six months.
Scales with your use cases. From SMBs to mid-market, airSlate SignNow delivers results for businesses of all sizes.
Intuitive UI and API. Sign and send documents from your apps in minutes.
Core features and benefits
Elgamal digital signature workflows depend on identity proof, integrity checks, and records that stay usable after signing.
Signer attribution
Creates a verifiable signing record that links the signer, the document, and the final signature for later review.
Document integrity
Uses cryptographic hashing to show whether the document changed after signing, which helps preserve integrity.
Audit evidence
Supports audit trails that record timestamps, identity details, and signing events in a readable sequence.
Key separation
Works with public and private keys so verification can happen without exposing the signer’s private key.
Workflow speed
Helps teams reduce paper handling, manual routing, and repeated follow-up across distributed workflows.
Compliance fit
Fits regulated use cases where evidence, retention, and controlled access matter more than simple image capture.
How it works step by step
The signing flow is short, but each step matters for attribution, integrity, and later verification.
Generate signature: The signer creates a signature with a private key. Hash the record: The system hashes the document before verification. Verify integrity: The verifier checks the public key and hash match. Confirm authenticity: The record is accepted when the signature validates.
Quick setup guide
Use a short setup sequence to keep the signing process organized and easy to review later.
Prepare the file:
Open the document and confirm the signing order. Set recipients:
Add signer details and required fields. Send for signature:
Send the request through signNow. Check completion:
Review the completed record and audit trail.
Recommended workflow settings
Use stronger identity checks, durable records, and encrypted storage when the signature must support regulated business records.
| Setting | Recommendation |
|---|---|
| Authentication method | SMS OTP |
| Signature type | Cryptographic digital signature |
| Audit trail | Enabled for every event |
| Document retention | 6 years for HIPAA records |
| Encryption | TLS 1.2/1.3 and AES-256 |
Platform and device requirements
Use a current browser or mobile app with secure HTTPS access to complete and verify signature workflows.
Desktop browsers Chrome, Firefox, Edge, and Safari Operating systems Windows 11, macOS, iOS, Android Mobile access signNow mobile apps on iOS and Android
For regulated deployments, managed devices, SSO, and controlled retention policies matter more than the device itself. signNow supports browser-based signing across Windows, macOS, iOS, and Android, which helps teams work from office or mobile environments while keeping access and records centralized.
Security and compliance snapshot
Transport security:
Stored data:
Independent controls:
Security management:
Healthcare use:
Cross-border compliance:
Real-world use cases
These examples show where signature integrity, workflow speed, and audit evidence matter in day-to-day business use.
Enterprise operations
A NetSuite operations leader needed signatures tied to the right records across finance and operations.
- NetSuite integration kept documents aligned with source data.
The workflow reduced manual routing and preserved a clearer record of who signed what, and when, across connected systems.
Real estate
A real estate founder needed online execution for property documents with mobile access and clear evidence.
- Mobile signing supported field and office work.
The process helped keep lease and closing paperwork moving while maintaining a documented signing history suitable for review and retention.
Best practices for reliable signing
A careful setup makes the signature easier to verify, easier to store, and easier to defend if someone later questions the record.
Match authentication to document risk
Protect signing authority carefully
Preserve the full record
Validate the workflow end to end
FAQ and troubleshooting
These answers focus on plan limits, compliance requirements, and record evidence that matter when a signature must hold up later.
signNow Business includes legally binding eSignatures, audit trails, templates, and mobile apps. If you need HIPAA support, use a BAA and confirm your workflow includes access controls and retention settings that fit your record type.
signNow’s Business Premium plan adds bulk send. If you need to send the same document to many recipients, that plan is the relevant fit. For regulated records, keep the completed file and audit trail together so the signing history remains easy to review.
HIPAA use requires a BAA and controls for user identification, person authentication, integrity, and audit logs. signNow supports HIPAA workflows, but the covered entity still needs to configure access, retention, and document handling correctly.
ESIGN and UETA support electronic signatures when intent, consent, and attribution are documented. If a signer disputes the record, the audit trail, timestamps, and identity checks become the main evidence, not the visual signature image alone.
signNow’s Business plan starts at $8/user/month billed annually. If you need SSO, full API access, or phone support, the Site License is the plan family tied to those requirements in the verified pricing data.
For 21 CFR Part 11 use, you need secure audit trails, unique user identification, and controlled access. signNow can support regulated workflows, but the process must be validated and configured to match the recordkeeping rule you are following.
Vendor comparison at a glance
The table below compares core signing capabilities and pricing signals across leading vendors using verified baseline data.
| Recommended | DocuSign | Adobe Acrobat Sign | PandaDoc |
|---|---|---|---|
| ESIGN and UETA | Yes | Yes | Yes |
| Audit trail | Yes | Yes | Yes |
| Starting price | $8/user/mo | $15/user/mo | $14/user/mo |
| Envelope cap | No cap | 100/year | Not verified |
Rollout and retention timeline
This timeline combines rollout milestones with retention and policy facts that affect long-term record handling.
Day 0:
Day 1:
Week 1:
7-day trial:
HIPAA retention:
21 CFR Part 11:
ESIGN and UETA:
Annual billing:
Risks of poor implementation
Unclear attribution
Missing audit trail
HIPAA or Part 11 failure
Weak ESIGN proof
What the audit trail records
The audit trail shows how the signature was created, verified, and preserved without changing the signed record.
Signer authentication:
Timestamp capture:
Document hashing:
Tamper-evident sealing:
Audit trail storage:
Retrieval and export:
Pricing and plan snapshot
Pricing data reflects verified entry-level annual billing information and plan features available from the supplied source set.
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free trial | 7 days | Not verified | Not verified | Not verified | Not verified |
| Bulk send | Business Premium | Plan-based | Plan-based | Plan-based | Plan-based |
| Audit trail | Included | Included | Included | Included | Included |
| HIPAA compliance | BAA required | Available | Available | Not verified | Not verified |
Key performance indicators that demonstrate SignNow's proven track record.