Patents by Inventor Fabrice L. Gautier
Fabrice L. Gautier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11630903Abstract: In an embodiment, a system is provided in which the private key is managed in hardware and is not visible to software. The system may provide hardware support for public key generation, digital signature generation, encryption/decryption, and large random prime number generation without revealing the private key to software. The private key may thus be more secure than software-based versions. In an embodiment, the private key and the hardware that has access to the private key may be integrated onto the same semiconductor substrate as an integrated circuit (e.g. a system on a chip (SOC)). The private key may not be available outside of the integrated circuit, and thus a nefarious third party faces high hurdles in attempting to obtain the private key.Type: GrantFiled: October 27, 2020Date of Patent: April 18, 2023Assignee: Apple Inc.Inventors: Timothy R. Paaske, Mitchell D. Adler, Conrad Sauerwald, Fabrice L. Gautier, Shu-Yi Yu
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Patent number: 11068419Abstract: Techniques are disclosed concerning secure access to data in a computing device. In one embodiment, a computing device includes a communication interface, a memory, a memory controller, and a security processor. The communication interface may communicate with a different computing device. The security processor may generate a host key in response to a successful authentication of the different computing device, and then encrypt a memory key using the host key. The security processor may also send the encrypted memory key to the memory controller, and send the host key to the different computing device. The host key may be included by the different computing device in a subsequent memory request to access data in the memory. The memory controller may, in response to the subsequent memory request, use the included host key to decrypt the encrypted memory key and use the decrypted memory key to access the data.Type: GrantFiled: February 10, 2020Date of Patent: July 20, 2021Assignee: Apple Inc.Inventors: Josh P. de Cesare, Wade Benson, Fabrice L. Gautier, Kaiehu Kaahaaina
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Patent number: 10853504Abstract: In an embodiment, a system is provided in which the private key is managed in hardware and is not visible to software. The system may provide hardware support for public key generation, digital signature generation, encryption/decryption, and large random prime number generation without revealing the private key to software. The private key may thus be more secure than software-based versions. In an embodiment, the private key and the hardware that has access to the private key may be integrated onto the same semiconductor substrate as an integrated circuit (e.g. a system on a chip (SOC)). The private key may not be available outside of the integrated circuit, and thus a nefarious third party faces high hurdles in attempting to obtain the private key.Type: GrantFiled: November 22, 2019Date of Patent: December 1, 2020Assignee: Apple Inc.Inventors: Timothy R. Paaske, Mitchell D. Adler, Conrad Sauerwald, Fabrice L. Gautier, Shu-Yi Yu
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Patent number: 10558589Abstract: Techniques are disclosed concerning secure access to data in a computing device. In one embodiment, a computing device includes a communication interface, a memory, a memory controller, and a security processor. The communication interface may communicate with a different computing device. The security processor may generate a host key in response to a successful authentication of the different computing device, and then encrypt a memory key using the host key. The security processor may also send the encrypted memory key to the memory controller, and send the host key to the different computing device. The host key may be included by the different computing device in a subsequent memory request to access data in the memory. The memory controller may, in response to the subsequent memory request, use the included host key to decrypt the encrypted memory key and use the decrypted memory key to access the data.Type: GrantFiled: September 29, 2017Date of Patent: February 11, 2020Assignee: Apple Inc.Inventors: Josh P. de Cesare, Wade Benson, Fabrice L. Gautier, Kaiehu Kaahaaina
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Patent number: 10521596Abstract: In an embodiment, a system is provided in which the private key is managed in hardware and is not visible to software. The system may provide hardware support for public key generation, digital signature generation, encryption/decryption, and large random prime number generation without revealing the private key to software. The private key may thus be more secure than software-based versions. In an embodiment, the private key and the hardware that has access to the private key may be integrated onto the same semiconductor substrate as an integrated circuit (e.g. a system on a chip (SOC)). The private key may not be available outside of the integrated circuit, and thus a nefarious third party faces high hurdles in attempting to obtain the private key.Type: GrantFiled: September 21, 2018Date of Patent: December 31, 2019Assignee: Apple Inc.Inventors: Timothy R. Paaske, Mitchell D. Adler, Conrad Sauerwald, Fabrice L. Gautier, Shu-Yi Yu
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Patent number: 10114956Abstract: In an embodiment, a system is provided in which the private key is managed in hardware and is not visible to software. The system may provide hardware support for public key generation, digital signature generation, encryption/decryption, and large random prime number generation without revealing the private key to software. The private key may thus be more secure than software-based versions. In an embodiment, the private key and the hardware that has access to the private key may be integrated onto the same semiconductor substrate as an integrated circuit (e.g. a system on a chip (SOC)). The private key may not be available outside of the integrated circuit, and thus a nefarious third party faces high hurdles in attempting to obtain the private key.Type: GrantFiled: January 2, 2018Date of Patent: October 30, 2018Assignee: Apple Inc.Inventors: Timothy R. Paaske, Mitchell D. Adler, Conrad Sauerwald, Fabrice L. Gautier, Shu-Yi Yu
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Patent number: 9892267Abstract: In an embodiment, a system is provided in which the private key is managed in hardware and is not visible to software. The system may provide hardware support for public key generation, digital signature generation, encryption/decryption, and large random prime number generation without revealing the private key to software. The private key may thus be more secure than software-based versions. In an embodiment, the private key and the hardware that has access to the private key may be integrated onto the same semiconductor substrate as an integrated circuit (e.g. a system on a chip (SOC)). The private key may not be available outside of the integrated circuit, and thus a nefarious third party faces high hurdles in attempting to obtain the private key.Type: GrantFiled: December 8, 2016Date of Patent: February 13, 2018Assignee: Apple Inc.Inventors: Timothy R. Paaske, Mitchell D. Adler, Conrad Sauerwald, Fabrice L. Gautier, Shu-Yi Yu
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Patent number: 9547778Abstract: In an embodiment, a system is provided in which the private key is managed in hardware and is not visible to software. The system may provide hardware support for public key generation, digital signature generation, encryption/decryption, and large random prime number generation without revealing the private key to software. The private key may thus be more secure than software-based versions. In an embodiment, the private key and the hardware that has access to the private key may be integrated onto the same semiconductor substrate as an integrated circuit (e.g. a system on a chip (SOC)). The private key may not be available outside of the integrated circuit, and thus a nefarious third party faces high hurdles in attempting to obtain the private key.Type: GrantFiled: September 26, 2014Date of Patent: January 17, 2017Assignee: Apple Inc.Inventors: Timothy R. Paaske, Mitchell D. Adler, Conrad Sauerwald, Fabrice L. Gautier, Shu-Yi Yu
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Patent number: 9419794Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.Type: GrantFiled: September 23, 2014Date of Patent: August 16, 2016Assignee: Apple Inc.Inventors: R. Stephen Polzin, Fabrice L. Gautier, Mitchell D. Adler, Conrad Sauerwald, Michael L. H. Brouwer
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Patent number: 9202061Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.Type: GrantFiled: April 27, 2015Date of Patent: December 1, 2015Assignee: Apple Inc.Inventors: R. Stephen Polzin, Fabrice L. Gautier, Mitchell D. Adler, Timothy R. Paaske, Michael J. Smith
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Patent number: 9047471Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.Type: GrantFiled: September 25, 2012Date of Patent: June 2, 2015Assignee: Apple Inc.Inventors: R. Stephen Polzin, Fabrice L. Gautier, Mitchell D. Adler, Timothy R. Paaske, Michael J. Smith
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Publication number: 20150010148Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.Type: ApplicationFiled: September 23, 2014Publication date: January 8, 2015Inventors: R. Stephen Polzin, Fabrice L. Gautier, Mitchell D. Adler, Conrad Sauerwald, Michael L. H. Brouwer
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Patent number: 8873747Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.Type: GrantFiled: September 25, 2012Date of Patent: October 28, 2014Assignee: Apple Inc.Inventors: R. Stephen Polzin, Fabrice L. Gautier, Mitchell D. Adler, Conrad Sauerwald, Michael L. H. Brouwer
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Publication number: 20140089650Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.Type: ApplicationFiled: September 25, 2012Publication date: March 27, 2014Applicant: APPLE INC.Inventors: R. Stephen Polzin, Fabrice L. Gautier, Mitchell D. Adler, Timothy R. Paaske, Michael J. Smith
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Publication number: 20140086406Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.Type: ApplicationFiled: September 25, 2012Publication date: March 27, 2014Applicant: APPLE INC.Inventors: R. Stephen Polzin, Fabrice L. Gautier, Mitchell D. Adler, Conrad Sauerwald, Michael L.H. Brouwer