gRPC with OpenSSL v3 and Trusted Platform Module (TPM)

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Aug 22, 2024, 2:33:08 PM8/22/24

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Hello :-)

I need to secure gRPC connection by using OpenSSL v3 having private key(s) in TPM.

Can I just configure OpenSSL with TPM provider, and then use a handle of private key, which is stored in TPM, in my C++ code?

Is TPM usage transparent for gRPC?

Thank you for answer or a hint how to integrate these three components in C++ program,

Raimund

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Sep 9, 2024, 3:58:40 PM9/9/24

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I have not found support of OpenSSL provider in gRPC.

gRPC supports OpenSSL engine, which is already deprecated for OpenSSL v3.

Dátum: štvrtok 22. augusta 2024, čas: 20:33:08 UTC+2, odosielateľ: Raimund Havelka

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Sep 17, 2025, 10:04:15 AMSep 17

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I am facing the same issue as well. Have you found any solution?

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Nov 5, 2025, 10:32:03 AMNov 5

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No, we have found no solution.

Dátum: streda 17. septembra 2025, čas: 16:04:15 UTC+2, odosielateľ: Kunal Kumar

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Nov 13, 2025, 12:05:05 PMNov 13

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We are actively working on TPM support - I'll be publishing a gRFC soon regarding this. I'll ping here when that is posted.

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Nov 13, 2025, 12:19:58 PMNov 13

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Please share a draft when possible and I will be happy to provide an user feedback

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