Research Article

A Blockchain Consensus Protocol Based on Quantum Attack Algorithm

Table 1

The potential threats of quantum computation on existing cryptography.

Crypto algorithmTypeComplex math problemSecurity threat

AESSymmetric—In half
SHA256Hash—In half
RSAAsymmetricLarge integer factoring problemComplete cracking
ECDSAAsymmetricElliptic curve functionComplete cracking
DSAAsymmetricDiscrete logarithmComplete cracking