feat: v1.10.10, se-ecdh and se-ecsign

swift-lib/src/lib.swift

@@ -81,4 +81,32 @@ func computeSecureEnclaveP256Ecdh(privateKeyDataRepresentation: SRString, epheme
     } catch {
         return SRString("err:\(error)")
     }
+}
+
+@_cdecl("compute_secure_enclave_p256_ecsign")
+func computeSecureEnclaveP256Ecsign(privateKeyDataRepresentation: SRString, content: SRString) -> SRString {
+    guard let privateKeyDataRepresentation = Data(
+        base64Encoded: privateKeyDataRepresentation.toString()
+    ) else {
+       return SRString("err:private key base64 decode failed")
+    }
+    guard let contentData = Data(
+        base64Encoded: content.toString()
+    ) else {
+       return SRString("err:content base64 decode failed")
+    }
+    do {
+        let context = LAContext();
+        let p =  try SecureEnclave.P256.Signing.PrivateKey(
+            dataRepresentation: privateKeyDataRepresentation,
+            authenticationContext: context
+        )
+
+        let digest = SHA256.hash(data: contentData)
+        let signature = try p.signature(for: digest)
+
+        return SRString("ok:\(signature.derRepresentation.base64EncodedString()))")
+    } catch {
+        return SRString("err:\(error)")
+    }
 }