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

@@ -9,10 +9,11 @@
 module TPM
   # Section 12.2.4 in https://trustedcomputinggroup.org/wp-content/uploads/TPM-Rev-2.0-Part-2-Structures-01.38.pdf
   class TPublic < BinData::Record
     BYTE_LENGTH = 8
     CURVE_TPM_TO_OPENSSL = { TPM::ECC_NIST_P256 => "prime256v1" }.freeze
+    RSA_KEY_DEFAULT_PUBLIC_EXPONENT = 2**16 + 1
 
     class << self
       alias_method :deserialize, :read
     end
 
@@ -72,10 +73,10 @@
       when TPM::ALG_RSASSA, TPM::ALG_RSAPSS, TPM::ALG_NULL
         n = unique.buffer.value
 
         if parameters.key_bits / BYTE_LENGTH == n.size
           key = OpenSSL::PKey::RSA.new(parameters.key_bits.value)
-          key.set_key(bn(n), nil, nil)
+          key.set_key(bn(n), bn(RSA_KEY_DEFAULT_PUBLIC_EXPONENT), nil)
 
           key.public_key
         end
       end
     end