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Currently verification of a signature does not check that the signature is in the correct subgroup. This poses a security risk when verifying a pairing.
How can it be fixed
When verifying a signature check r * sig == 0 before pairing.
I will update #79 to include the check as this had been inserted into the standard.
The text was updated successfully, but these errors were encountered:
What is wrong?
Currently verification of a signature does not check that the signature is in the correct subgroup. This poses a security risk when verifying a pairing.
How can it be fixed
When verifying a signature check
r * sig == 0
before pairing.I will update #79 to include the check as this had been inserted into the standard.
The text was updated successfully, but these errors were encountered: