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Check signature's signed time #10

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3 changes: 3 additions & 0 deletions lib/gala/payment_token.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,9 @@ def validate_signature(signature, ephemeral_public_key, data, transaction_id, ap
verified = p7.verify([], store, verification_string, OpenSSL::PKCS7::NOVERIFY )
raise InvalidSignatureError, "The given signature is not a valid ECDSA signature." unless verified
end

# Ensure that the signing time is within "a few minutes"
raise InvalidSignatureError, "Token not signed within a few minutes" unless p7.signers.length == 1 && p7.signers.first.signed_time.between?(Time.now - 5*60, Time.now + 5*60)
end

def chain_of_trust_verified?(leaf_cert, intermediate_cert, root_cert)
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