lib/tpm/key_attestation.rb in tpm-key_attestation-0.8.0 vs lib/tpm/key_attestation.rb in tpm-key_attestation-0.9.0

@@ -84,10 +84,10 @@
     end
 
     def trust_store
       @trust_store ||=
         OpenSSL::X509::Store.new.tap do |trust_store|
-          root_certificates.each { |root_certificate| trust_store.add_cert(root_certificate) }
+          root_certificates.uniq(&:serial).each { |root_certificate| trust_store.add_cert(root_certificate) }
         end
     end
 
     def aik_certificate
       @aik_certificate ||= TPM::AIKCertificate.from_der(certificates.first)