Add PKCS#11 provider compatible with OpenSSL 3.x/4.0#650
Merged
mtrojnar merged 12 commits intoOpenSC:masterfrom Apr 21, 2026
Merged
Add PKCS#11 provider compatible with OpenSSL 3.x/4.0#650mtrojnar merged 12 commits intoOpenSC:masterfrom
mtrojnar merged 12 commits intoOpenSC:masterfrom
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Using up_ref() shared the same EVP_PKEY instance and unnecessarily increased the reference count of the underlying engine-backed key, leading to incorrect lifetime management.
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Pull Request Type
Related Issue
Fix #631
Current Behavior
The existing PKCS#11 integration relies on legacy EVP_PKEY_METHOD-based implementations, which are deprecated and removed in OpenSSL 4.0. As a result, the current implementation is not compatible with OpenSSL 4.0.
EdDSA support is also conditionally guarded using incorrect macros (OPENSSL_NO_EC instead of OPENSSL_NO_ECX), leading to potential build and feature inconsistencies.
New Behavior
This PR introduces a new PKCS#11 provider implementation compatible with OpenSSL 3.x and forward-compatible with OpenSSL 4.0, replacing legacy EVP_PKEY_METHOD usage with provider-based interfaces (KEYMGMT, SIGNATURE, ASYM_CIPHER).
EdDSA support is properly handled using OPENSSL_NO_ECX, and key handling, reference management, and cleanup logic have been corrected.
Scope of Changes
Testing
Additional Notes
License Declaration