Digital Signature And Encryption With SignNow
Award-winning eSignature solution
What digital signature and encryption means
Digital signature and encryption is a way to sign and protect electronic documents so the signer can be identified and the file can be checked for changes. A digital signature uses cryptography to bind a signer’s identity to a document, while encryption helps keep data unreadable to unauthorized parties. In U.S. business use, the process typically includes identity verification, signing, hashing, and tamper detection, which helps preserve integrity, confidentiality, and evidence of intent.
Why digital signatures matter
Digital signature and encryption reduce paper handling, speed approvals, and support enforceability under ESIGN and UETA when consent, attribution, and record retention are handled properly. They also help businesses preserve evidence, limit disputes, and keep records organized for audit and compliance review.
Common implementation challenges
Signer identity can be hard to prove when email access, device access, or authentication steps are weak. Documents may be challenged later if the audit trail does not clearly show who signed and when. Encryption gaps can expose sensitive records during storage, transfer, or internal access. Poor retention practices can make it difficult to produce records for legal, tax, or compliance review.
Who uses digital signatures
Business use
Teams use digital signature and encryption for contracts, consent forms, approvals, and regulated records.
Document workflows
It fits customer-facing and internal workflows where identity, integrity, and recordkeeping matter.
Typical users and personas
A NetSuite operations leader at Xerox uses signNow to route the right signatures on the right documents, in the right formats, through a connected workflow. Encryption and audit records help keep approvals traceable across finance and operations teams that need reliable document control. A founder at Martin Properties uses signNow to execute documents online with built-in security and mobile access. That matters for real estate teams that need fast turnaround on leases, rental applications, and closing paperwork while preserving evidence of intent and document integrity.
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Key features and benefits
Digital signature and encryption combine identity, integrity, and record protection so teams can manage signed documents with less manual handling.
Document integrity
Cryptographic binding links each signature to the document, helping detect changes after signing and preserving record integrity for review.
Signer verification
Identity checks help attribute each signature to a specific person, which supports enforceability and reduces disputes over authorship.
Audit trail
Audit records capture events, timestamps, and actions, giving teams a clear history for compliance and internal review.
Data protection
Encryption protects data in transit and at rest, reducing exposure when records move between users, systems, or devices.
Mobile access
Mobile signing supports approvals on phones and tablets, which helps teams complete documents without waiting for desktop access.
Reusable workflows
Template-based workflows reduce repeated setup work and help teams send consistent documents with the same controls each time.
How the process works
The signing flow uses cryptography and record controls to show who signed, what changed, and when the action occurred.
Verify identity: The signer opens the document and confirms identity. Create hash: The system hashes the file before signing. Apply signature: The signature is applied and linked to the record. Detect changes: Any later change breaks the tamper-evident seal.
Quick setup steps
A short setup sequence helps teams prepare, send, and retain signed documents with consistent controls.
Prepare file:
Upload the document and assign the signer. Set verification:
Choose the verification method for the signer. Send request:
Send the document for signature. Save record:
Store the completed record with its audit trail.
Recommended workflow setup
A practical setup balances identity checks, record integrity, and retention requirements for U.S. business and regulated workflows.
| Setting | Recommendation |
|---|---|
| Authentication method | SMS OTP |
| Signature type | SES |
| Audit trail | Enabled |
| Document retention | 6 years (HIPAA 45 CFR 164.530(j)(2)) |
| Encryption | AES-256 and TLS 1.2/1.3 |
Platform and system requirements
Digital signature and encryption work in modern browsers and on mobile devices, with secure transport and app-based access across major operating systems.
Desktop browsers Chrome, Firefox, Safari, and Edge Operating systems Windows, macOS, iOS, and Android Mobile access signNow mobile apps available
For enterprise use, managed devices, SSO provisioning, and API access can support tighter control over users, records, and integrations.
Security and compliance
Transport security:
Storage encryption:
Security report:
Information security:
Healthcare compliance:
Regulated workflows:
Real-world use cases
These examples show how signNow fits document-heavy teams that need secure signing, traceable records, and practical workflow control.
Enterprise operations
A connected finance and operations team needs faster approvals without losing control over document history.
- Tech Data used signNow to improve internal and external service.
- The team kept speed while preserving document control.
The workflow reduced manual handling and supported faster turnaround while keeping records organized for review and follow-up.
Real estate
A real estate business needs online execution, mobile access, and security that supports remote document handling.
- Martin Properties processed documents online with built-in security.
- Mobile and offline access helped keep work moving.
The team completed documents remotely while maintaining compliance-focused recordkeeping and a clearer signing history for each file.
Best practices for secure signing
Good signing practices focus on identity, record integrity, retention, and access control rather than adding unnecessary complexity.
Match authentication to risk
Preserve the full audit trail
Define retention before sending
Control user access
Rollout and retention timeline
A rollout plan works best when adoption steps and retention rules are defined together from the start.
Day 1:
Day 2:
Week 1:
7-day trial:
HIPAA retention:
ESIGN and UETA:
21 CFR Part 11:
Ongoing review:
Risks of poor implementation
Weak audit trail
Unencrypted storage
Poor attribution
Record loss
Inside the audit trail
The audit trail records the signing sequence so teams can verify identity, timing, and document integrity later.
Signer authentication:
Timestamp capture:
Document hashing:
Tamper-evident sealing:
Audit retrieval:
Record verification:
Vendor comparison
A short comparison helps place signNow alongside other major eSignature vendors on compliance, limits, and core workflow features.
| Recommended | DocuSign | Adobe Sign | PandaDoc |
|---|---|---|---|
| ESIGN and UETA | Yes | Yes | Yes |
| Audit trail | Yes | Yes | Yes |
| Envelope cap | No cap | 100/year | Not verified |
| Starting price | $8/user/mo | $15/user/mo | $14/user/mo |
Pricing and plan comparison
Pricing and plan details vary by vendor, so this table focuses on verified entry points and a few practical limits.
| 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-day trial | Not verified | Not verified | Not verified | Not verified |
| Bulk send | Business Premium | Not verified | Not verified | Not verified | Not verified |
| Audit trail | Included | Included | Included | Included | Included |
| Envelope cap | No cap | 100/year | Not verified | Not verified | Not verified |
FAQ and troubleshooting
These answers focus on signNow features, plan limits, and compliance points that affect secure signing and record handling.
signNow Business includes legally binding eSignatures, audit trails, templates, and mobile apps. If a signer says the record looks incomplete, confirm the audit trail is enabled and the document was sent through the full signing workflow, not exported as an unsigned copy.
For HIPAA workflows, signNow supports HIPAA compliance with a BAA. If PHI is involved, make sure the account is covered by a signed BAA, encryption is enabled, and access controls limit who can view or download the file.
If a signer cannot complete the document on a phone, check browser support and the signNow mobile app on iOS or Android. Mobile-created eSignatures are valid under ESIGN and UETA when intent, attribution, and retention are preserved.
If you need higher-assurance authentication, signNow Enterprise adds advanced signer authentication. Use that when the document requires stronger attribution than email access alone, especially for sensitive approvals or regulated records.
If a completed file must be retained for a regulated period, use the retention rule that matches the record type. HIPAA-covered documents require 6 years under 45 CFR 164.530(j)(2), and the completed record should stay accessible for that period.
If a vendor comparison shows envelope caps, note that signNow has no such cap on the Business plan, while DocuSign limits to 100 envelopes per user per year. That difference matters when volume is high and repeat sending is expected.
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