Fortanix, Inc.

Jethro Gideon Beekman

Jeffrey Seyfried

Xinyu Lin

Raoul Strackx

A method includes receiving input data that includes a plurality of input parts, wherein the input data corresponds to a data schema, wherein the data schema includes a plurality of schema parts, wherein each schema part specifies a set of one or more possible values, and wherein each input part satisfies a respective schema part. The method further includes generating an intermediate numeric value that represents the input data, generating, using a format-preserving encryption algorithm, an encrypted numeric value based on the intermediate numeric value, determining a number of possible values that satisfy the data schema, determining whether the encrypted numeric value satisfies a threshold criterion based on the number of possible values that satisfy the data schema, and responsive to determining that the encrypted numeric value satisfies the threshold criterion, generating, based on the encrypted numeric value, output data that conforms to the data schema.

Format-preserving data encryption

A platform identifier for a first node may be determined based on hardware characteristics of the first node. The platform identifier may be sent to a certification service via non-network communication. Certificate information associated with the platform identifier may be received from the certification service via non-network communication. A key pair may be generated at a first node application enclave of the first node. The key pair may include a public key of the first node and an associated private key of the first node. A request to generate a signed digital certificate may be sent to a digital certificate manager, the request including the public key of the first node and the certificate information. A signed digital certificate including the public key and the certificate information may be received from the digital certificate manager, and the signed digital certificate may be stored at the first node application enclave.

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Eindhoven, Netherlands

Jethro Gideon Beekman