Granted Patent B2

US 12,225,127 · App. 17/719,344 · Granted Feb 11, 2025

Inventors: Vladimir Tsitrin (Acton, MA); Gang Cheng (Nashua, NH)

Assignee: FMR LLC

H04L9/0894G06F21/602G06F21/6218H04L9/0825H04L9/0838H04L9/3234H04L9/50H04L2209/56

Abstract

Claims (54)

1. A verified address smart contract deploying apparatus, comprising:

at least one memory;

a component collection stored in the at least one memory;

at least one processor disposed in communication with the at least one memory, the at least one processor executing processor-executable instructions from the component collection, the component collection storage structured with processor-executable instructions, comprising:

obtain, via the at least one processor, a contract deployment request message datastructure by a hardware security module (HSM) from a transaction signing server (TSS), in which the contract deployment request message datastructure is structured to specify a set of owner datastructures, a deployment factory address, and contract code for a smart contract;

determine, via the at least one processor, by the HSM, owner key identification parameters associated with an owner datastructure in the set of owner datastructures, in which the owner key identification parameters are structured to specify a keyset identifier and a keychain path;

determine, via the at least one processor, by the HSM, an owner public key associated with the owner datastructure using the owner key identification parameters;

generate, via the at least one processor, by the HSM, an owner address associated with the owner datastructure using the owner public key;

generate, via the at least one processor, by the HSM, a salt value for the smart contract;

calculate, via the at least one processor, by the HSM, a contract address for the smart contract as a function of the deployment factory address, the salt value, the contract code, and the owner address;

determine, via the at least one processor, by the HSM, an owner private key associated with the owner datastructure using the owner key identification parameters, in which the owner private key corresponds to the owner public key;

sign, via at least one processor, by the HSM, the contract address for the smart contract using the owner private key to generate a contract deployment signature; and

provide, via at least one processor, by the HSM, a contract deployment data datastructure to the TSS, in which the contract deployment data datastructure is structured to specify the salt value, and the contract deployment signature.

2. The apparatus of claim 1 , in which the deployment factory address is a blockchain address of a Contract Factory smart contract on the Ethereum blockchain.

3. The apparatus of claim 1 , in which the contract code is structured as a bytecode.

4. The apparatus of claim 1 , in which the owner key identification parameters are structured to specify a wallet type.

5. The apparatus of claim 1 , in which the owner address is generated using a Bitcoin improvement proposal #32 based (Bip32-based) deterministic key derivation procedure.

6. The apparatus of claim 5 , in which the owner address is calculated as the last 20 bytes of Keccak-256 hash of the owner public key.

7. The apparatus of claim 1 , in which the salt value is structured as a one-time 32-byte salt value.

8. The apparatus of claim 1 , in which the contract address is calculated as an Ethereum Improvement Protocol #1014 (EIP-1014) blockchain address.

9. The apparatus of claim 8 , in which the contract address is calculated as the last 20 bytes of Keccak-256 hash of a concatenated list of: 0xFF byte, the deployment factory address, the salt value, and Keccak-256 hash of a concatenated list of: the contract code, and the owner address.

10. The apparatus of claim 1 , in which the contract deployment data datastructure is structured to specify the owner address.

11. A verified address smart contract deploying processor-readable, non-transient medium, the medium storing a component collection, the component collection storage structured with processor-executable instructions comprising:

obtain, via at least one processor, a contract deployment request message datastructure by a hardware security module (HSM) from a transaction signing server (TSS), in which the contract deployment request message datastructure is structured to specify a set of owner datastructures, a deployment factory address, and contract code for a smart contract;

determine, via the at least one processor, by the HSM, owner key identification parameters associated with an owner datastructure in the set of owner datastructures, in which the owner key identification parameters are structured to specify a keyset identifier and a keychain path;

determine, via the at least one processor, by the HSM, an owner public key associated with the owner datastructure using the owner key identification parameters;

generate, via the at least one processor, by the HSM, an owner address associated with the owner datastructure using the owner public key;

generate, via the at least one processor, by the HSM, a salt value for the smart contract;

calculate, via the at least one processor, by the HSM, a contract address for the smart contract as a function of the deployment factory address, the salt value, the contract code, and the owner address;

determine, via the at least one processor, by the HSM, an owner private key associated with the owner datastructure using the owner key identification parameters, in which the owner private key corresponds to the owner public key;

sign, via at least one processor, by the HSM, the contract address for the smart contract using the owner private key to generate a contract deployment signature; and

provide, via at least one processor, by the HSM, a contract deployment data datastructure to the TSS, in which the contract deployment data datastructure is structured to specify the salt value, and the contract deployment signature.

12. A verified address smart contract deploying processor-implemented system, comprising:

memory configured to store a component collection;

at least one processor implemented in hardware configured to process processor-executable instructions from the component collection, the component collection storage structured with processor-executable instructions including:

obtain, via the at least one processor, a contract deployment request message datastructure by a hardware security module (HSM) from a transaction signing server (TSS), in which the contract deployment request message datastructure is structured to specify a set of owner datastructures, a deployment factory address, and contract code for a smart contract;

determine, via the at least one processor, by the HSM, owner key identification parameters associated with an owner datastructure in the set of owner datastructures, in which the owner key identification parameters are structured to specify a keyset identifier and a keychain path;

determine, via the at least one processor, by the HSM, an owner public key associated with the owner datastructure using the owner key identification parameters;

generate, via the at least one processor, by the HSM, an owner address associated with the owner datastructure using the owner public key;

generate, via the at least one processor, by the HSM, a salt value for the smart contract;

calculate, via the at least one processor, by the HSM, a contract address for the smart contract as a function of the deployment factory address, the salt value, the contract code, and the owner address;

determine, via the at least one processor, by the HSM, an owner private key associated with the owner datastructure using the owner key identification parameters, in which the owner private key corresponds to the owner public key;

sign, via at least one processor, by the HSM, the contract address for the smart contract using the owner private key to generate a contract deployment signature; and

provide, via at least one processor, by the HSM, a contract deployment data datastructure to the TSS, in which the contract deployment data datastructure is structured to specify the salt value, and the contract deployment signature.

13. A verified address smart contract deploying processor-implemented process, including processing processor-executable instructions via at least one processor from a component collection stored in at least one memory, the component collection storage structured with processor-executable instructions comprising:

obtain, via the at least one processor, a contract deployment request message datastructure by a hardware security module (HSM) from a transaction signing server (TSS), in which the contract deployment request message datastructure is structured to specify a set of owner datastructures, a deployment factory address, and contract code for a smart contract;

determine, via the at least one processor, by the HSM, owner key identification parameters associated with an owner datastructure in the set of owner datastructures, in which the owner key identification parameters are structured to specify a keyset identifier and a keychain path;

determine, via the at least one processor, by the HSM, an owner public key associated with the owner datastructure using the owner key identification parameters;

generate, via the at least one processor, by the HSM, an owner address associated with the owner datastructure using the owner public key;

generate, via the at least one processor, by the HSM, a salt value for the smart contract;

calculate, via the at least one processor, by the HSM, a contract address for the smart contract as a function of the deployment factory address, the salt value, the contract code, and the owner address;

determine, via the at least one processor, by the HSM, an owner private key associated with the owner datastructure using the owner key identification parameters, in which the owner private key corresponds to the owner public key;

sign, via at least one processor, by the HSM, the contract address for the smart contract using the owner private key to generate a contract deployment signature; and

provide, via at least one processor, by the HSM, a contract deployment data datastructure to the TSS, in which the contract deployment data datastructure is structured to specify the salt value, and the contract deployment signature.

Assignments (1)

Continuity (27)

References Cited (132)

Cited By (2)

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