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Comparison

Tokenization vs Encryptionfor sensitive data.

Encryption turns data into ciphertext. Tokenization replaces a sensitive value with a token and keeps the original in a vault. They protect data in different ways, and applications often use both.

The difference

Two controls,two jobs.

Encryption

Encryption transforms data into a protected form using a cryptographic process. The original data can be recovered through the appropriate decryption mechanism.

Encryption is commonly used to protect data at rest and in transit.

Input
+91 98765 43210
Output
8f2c…e91a (ciphertext)
Recovered by
decryption

Tokenization

Tokenization replaces a sensitive value with a token that represents it within a supported system.

The original value is stored separately, typically in a secure vault, and can be retrieved through an authorised process.

Input
+91 98765 43210
Output
+91 47218 90563_stx
Recovered by
authorised detokenization

Side by side

What each controlchanges.

  • What changesEncryptionThe value becomes ciphertextTokenizationThe value is replaced by a token
  • What a downstream system seesEncryptionCiphertext, or the original after decryptionTokenizationA token, not the original value
  • How the original is recoveredEncryptionDecryptionTokenizationAuthorised detokenization
  • Usual jobEncryptionProtect data at rest and in transitTokenizationKeep the original out of an application, model, or third party

When to use which

Pick the controlfor the exposure.

Use encryption when

You need to protect stored data and data moving between systems. A downstream service that must process the real value still needs it decrypted before it can use it.

Use tokenization when

A supported workflow should run without the original value. Applications, AI models, APIs, and third parties can receive a token while the original stays in the vault.

They are not substitutes

Encryption and tokenization solve different problems. Vaultkey provides tokenization and vaulting so supported workflows can use tokens instead of original values. It does not replace encryption or other security controls.

FAQ

Frequently askedquestions.

Use the right controlfor each exposure.

Keep original values in a controlled vault, and protect data at rest and in transit with encryption.

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