In 2025, payment security is no longer a check-the-box requirement. It is a foundational necessity for merchants that want to reduce fraud, simplify PCI DSS compliance, and future-proof their operations.
At Corepay, we work with merchants ranging from eCommerce, healthcare, adult, and subscription-based businesses. We are seeing a clear trend: network tokenization is replacing encryption as the dominant method for securing cardholder data at rest. Encryption still plays a key role in protecting data in motion.
In this article, we’ll break down the key differences between encryption and tokenization, when to use them, and how we implement both using Netvalve, our proprietary payment gateway built for high-volume, high-risk environments.
What Is Encryption?
Encryption converts readable data into unreadable cipher text using cryptographic algorithms and keys. This protects data in motion or at rest by making it unintelligible to unauthorized users unless they have the correct key.
How Encryption Works
- A plaintext input (such as a credit card number) is transformed using a key and an algorithm.
- Only someone with the matching key can decrypt the data and restore it to its original form.
Examples of Encryption in Use
- HTTPS traffic between your website and server
- Secure APIs and communication between microservices
- Encrypted backups and stored credentials
- Messaging, email, and VPNs
Key Encryption Protocols in 2025
- AES-256 (Advanced Encryption Standard)
- TLS 1.3 (Transport Layer Security)
- RSA 2048+ (for digital signatures and secure key exchange)
Limitations of Encryption
- It is reversible, meaning if a hacker obtains the key, they can decrypt the data.
- Encrypted cardholder data still falls within PCI DSS scope.
- It doesn’t eliminate risk. It reduces exposure during transport, not storage.
What Is Network Tokenization?
Network tokenization replaces sensitive card data (PAN) with a domain-restricted token issued by the card networks (Visa, Mastercard, Amex, etc.). These tokens are only usable within a specific merchant or device environment.
How Network Tokenization Works
- Corepay, via Netvalve, requests a token from the card network.
- The network returns a token that is merchant-locked and irreversible.
- This token is stored and used for future transactions instead of the real PAN.
- The original PAN is stored only in the network’s vault and is never visible to the merchant.
Real-World Use Cases in 2025
- Storing cards on file for recurring billing
- One-click checkout and click-to-pay
- Enabling Apple Pay, Google Pay, and other wallets
- Updating expired or reissued cards automatically
- Reducing card-not-present fraud
Key Advantages
- Removes cardholder data from your environment, reducing PCI DSS scope
- Tokens are useless if intercepted, since they are locked to your domain
- Enables authorization rate optimization
- Allows real-time card lifecycle management (such as token updates)
Network Tokenization vs Encryption: A Side-by-Side Comparison
| Feature | Encryption | Network Tokenization |
|---|---|---|
| Reversibility | Reversible with decryption key | Irreversible without access to card network vault |
| PCI DSS Scope | Still in scope | Reduced dramatically |
| Fraud Resistance | Moderate | High. Tokens are merchant or device locked |
| Lifecycle Management | Manual or external | Automated via card networks |
| Format Preservation | No | Yes (format-preserving available) |
| Primary Use | Data in motion | Data at rest (such as stored cards) |
| Examples | VPNs, HTTPS, API communication | Subscriptions, wallet payments, click-to-pay |
How Corepay Implements Tokenization and Encryption
At Corepay, we use both encryption and tokenization across our infrastructure, but with different goals:
- Encryption protects communication between services and endpoints.
- Network tokenization protects stored cardholder data, especially for card-on-file use cases.
Through Netvalve, our in-house gateway, we support network tokenization across Visa, Mastercard, Discover, and Amex. Netvalve gives merchants full access to token management, fraud tools, and real-time detokenization under strict security protocols.
Our gateway is built to support:
- Recurring billing environments
- Wallet integrations such as Apple Pay and Google Pay
- High-volume CNP transactions
- Multi-acquirer routing and orchestration
Why More Merchants Are Choosing Tokenization in 2025
The shift toward tokenization is not theoretical. We see it daily.
Merchants are under pressure to meet stricter PCI DSS 4.0 guidelines, reduce fraud rates, and improve customer experience. Network tokenization delivers on all three fronts:
- Fewer chargebacks due to token domain restrictions
- Higher authorization rates with updated tokens
- Reduced compliance overhead for storage and audit
Tokenization also provides a direct path toward future-ready features like:
- Click-to-Pay with token-first architecture
- Secure omnichannel commerce with consistent tokens
- Tokenized recurring payments with fallback logic
Best Practices for Combining Tokenization and Encryption
- Use tokenization for storing any cardholder data or recurring billing details
- Encrypt tokens when transmitting them between services or to third parties
- Never store raw PANs, even in encrypted form, unless absolutely necessary
- Rotate encryption keys regularly and monitor for vault access attempts
- Maintain strict access controls to both tokens and keys
Work With Corepay
Corepay is more than just a payment processor. We are a partner focused on helping merchants stay ahead of compliance, fraud, and performance demands.
Our team specializes in supporting:
- High-risk industries such as supplements, medspas, and adult
- U.S., EU, and international merchants
- Platforms requiring tokenization, orchestration, and chargeback mitigation
When you work with Corepay, you get:
- Full network tokenization support via Netvalve
- Multi-acquirer redundancy
- Token-first architecture
- Real-time reporting and fraud tools
- Fast underwriting for high-risk verticals
Get Started with Network Tokenization
Looking to remove cardholder data from your environment, reduce fraud, and simplify PCI DSS compliance?
Contact Corepay today to learn how we can implement network tokenization for your business using our proprietary gateway, Netvalve.
