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feat(identity): implement X25519 keypair generation and file storage #6

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feat(identity): implement X25519 keypair generation and file storage #6

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Implemented the Identity layer that handles Noise-compatible X25519 keypair generation, loading, and saving.

This layer is essential to:

Generate and persist local identity (Noise keypairs)

Retrieve the keypair during handshake sessions

Store/load identities for repeated secure communication

I added a temp. test in main.go to review and run use "kp, _ := identity.GenerateKeypair()
fmt.Printf("Public Key: %x\n", kp.PublicKey)
identity.SaveKeypair(kp, "mykey.json")

loaded, _ := identity.LoadKeypair("mykey.json")
fmt.Printf("Loaded Key: %x\n", loaded.PublicKey)

" as guide.

@ethical-buddy ethical-buddy requested a review from JumaOchi July 25, 2025 09:09
JumaOchi
JumaOchi reviewed Jul 28, 2025
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Looks good maybe look into default paths maybe might be helpfull to add a utility function for default keypair locations. Also Maybe some error handling i.e code currently ignores the error from GenerateKeypair(). Other than that looks solid

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@ethical-buddy @JumaOchi