Generating cryptographic function parameters from compact source code
AssigneeCerticom Corp.
InventorDaniel Richard L. Brown
Life of this patent
Estimating the term…
Abstract
Methods, systems, and computer programs for generating cryptographic function parameters are described. In some examples, source code that defines seed information and a pseudorandom function is accessed. A parameter for a cryptographic function by operation of one or more data processors is generated. The parameter is generated from the seed information and the pseudorandom function. The parameter has a larger size in memory than the source code that defines the seed information and the pseudorandom function.
Claims16
A cryptography method comprising:
- accessing a source code that defines seed information and a pseudorandom function, wherein the source code comprises a programming language that assembles or compiles into a machine language executable by one or more data processors, the source code has a complexity lower than a predefined threshold, the complexity measured based on a code length of the source code;
- generating a parameter for a cryptographic function by operation of the one or more data processors, wherein the cryptographic function comprises an elliptic curve function, the parameter comprises a constant for the elliptic curve function, the parameter is generated from the seed information and the pseudorandom function, and the parameter is a number that has a larger size in memory than the source code that defines the seed information and the pseudorandom function;
- encrypting data using the generated parameter and the cryptographic function;
- and
- transmitting the encrypted data.
A computing system comprising:
- memory storing a source code that defines seed information and a pseudorandom function, wherein the source code comprises a programming language that assembles or compiles into a machine language executable by one or more data processors, the source code has a complexity lower than a predefined threshold, the complexity measured based on a code length of the source code;
- and
- the one or more data processors configured to:
- generate, from the seed information and the pseudorandom function, a parameter for a cryptographic function, wherein the cryptographic function comprises an elliptic curve function, the parameter comprises a constant for the elliptic curve function, the parameter is a number that has a larger size in memory than the source code that defines the seed information and the pseudorandom function;
- encrypt data using the generated parameter and the cryptographic function;
- and
- transmit the encrypted data.
A non-transitory computer-readable medium storing instructions that, when executed by a data processing apparatus, cause the data processing apparatus to perform operations comprising:
- accessing a source code that defines seed information and a pseudorandom function, wherein the source code comprises a programming language that assembles or compiles into a machine language executable by one or more data processors, the source code has a complexity lower than a predefined threshold, the complexity measured based on a code length of the source code;
- generating a parameter for a cryptographic function by operation of the one or more data processors, wherein the cryptographic function comprises an elliptic curve function, the parameter comprises a constant for the elliptic curve function, the parameter is generated from the seed information and the pseudorandom function, and the parameter is a number that has a larger size in memory than the source code that defines the seed information and the pseudorandom function;
- encrypting data using the generated parameter and the cryptographic function;
- and
- transmitting the encrypted data.
Dependencies are inferred from the claim text.