Cross-platform remote keyless signing proxy for Windows and macOS. Access non-exportable private keys (TPM, Keychain, SmartCards) over mTLS gRPC with native Windows CNG KSP and macOS CryptoTokenKit (CTK) integration.
windows macos golang security cryptography keychain grpc smartcard pki ksp tpm cng mtls cryptotokenkit keyless-ssl keyless-tls
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Updated
Aug 15, 2026 - Go