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Add Private Key Agent support for signing and decryption - #97
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Prior to this change, RSA signing and RSA key-transport decryption could only be done with a private key loaded into the PHP process. For better security we need those two operations to be delegated to a remote Private Key Agent, so the private key never enters the application's memory, while public operations (verify, encrypt) keep running locally. This change adds the extension points needed to route the private-key operations to the agent without breaking existing consumers. Insecure algorithms (SHA-1, RSA v1.5) stay blacklisted by default. As a hardening side effect, the key-transport read path now enforces the OAEP DigestMethod and MGF that were previously ignored.
Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## master #97 +/- ##
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+ Coverage 93.00% 93.33% +0.33%
- Complexity 766 908 +142
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Files 125 133 +8
Lines 2917 3287 +370
============================================
+ Hits 2713 3068 +355
- Misses 204 219 +15 🚀 New features to boost your workflow:
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Prior to this change, RSA signing and RSA key-transport decryption could only be done with a private key loaded into the PHP process. For better security we need those two operations to be delegated to a remote Private Key Agent, so the private key never enters the application's memory, while public operations (verify, encrypt) keep running locally.
This change adds the extension points needed to route the private-key operations to the agent without breaking existing consumers. Insecure algorithms (SHA-1, RSA v1.5) stay blacklisted by default. As a hardening side effect, the key-transport read path now enforces the OAEP DigestMethod and MGF that were previously ignored.