Currently libzerocoin ignores the transaction meta data that is supposed to be added to the Signature of Knowledge. This leaves zerocoin spend transactions susceptible to middle man/malleability attacks.
Adding the transaction hash to the SoK hash that the SoK challenge is based on should help prevent malleability.
Currently libzerocoin ignores the transaction meta data that is supposed to be added to the Signature of Knowledge. This leaves zerocoin spend transactions susceptible to middle man/malleability attacks.
Adding the transaction hash to the SoK hash that the SoK challenge is based on should help prevent malleability.