USING STORABLE PROOF OF WORK TO PREVENT DISTRIBUTED DENIAL OF SERVICE (DDOS) ATTACK
DDoS attack is a major threat to server performance. This attack works by consuming server capacity, so users cannot access the server. Proof of work can be used to ward off DDoS by forcing attackers to perform large amounts of difficult calculations. The downside of proof of work is that the cli...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/82233 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | DDoS attack is a major threat to server performance. This attack works by consuming
server capacity, so users cannot access the server. Proof of work can be used to ward off
DDoS by forcing attackers to perform large amounts of difficult calculations. The downside
of proof of work is that the client must perform the entire protocol for each connection,
resulting in lag.
Storable proof of work develops classic proof of work by creating proof of work that can
be stored early, whenever needed it can be used immediately. The storable proof of work uses
symmetric encryption keys and message authentication codes to ensure the security of the
protocol. Proof of work has an expiration date so attackers cannot store large amounts of
proof of work. To ensure security, storable proof of work requires two external entities, the
initiator and minter, which are trusted by the server. The storable proof of work can be further
developed to add features such as third-party verification and data association.
The storable proof-of-work implementation was created using the Rust programming
language and various external cryptographic libraries. The implementation was tested using
test suite scripts run on one low end computer and one high end computer. The storable proof
of work test was carried out to find the optimum parameters and the effect of the algorithms
in the storable proof of work on the generation of proof of work. One of the test results is the
equation of the target time for generating proof of work with the difficulty level parameters.
Based on tests carried out, the storable proof of work protocol can ward off DDoS attacks
and eliminate lag. Storable proof of work is designed to withstand threats such as pre-mining.
The difficulty level of proof of work can be set to make it difficult for attackers but not
overwhelming for users. The robustness of the storable proof of work can be further improved
by selecting a good proof of work algorithm. |
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