TY - JOUR ID - TI - A Secure Private Key Recovery Based on DNA Bio-Cryptography for Blockchain AU - Asia Ali Salman Al-karkhi AU - Nidaa Flaih Hassan AU - Raghad Abdulaali Azeez PY - 2023 VL - 64 IS - 2 SP - 958 EP - 972 JO - Iraqi Journal of Science المجلة العراقية للعلوم SN - 00672904 23121637 AB - The existence of the Internet, networking, and cloud computing support a widerange of new technologies. Blockchain is one of these technologies; this increasesthe interest of researchers who are concerned with providing a safe environment forthe circulation of important information via the Internet. Maintaining solidity andintegrity of a blockchain’s transactions is an important issue, which must always beborne in mind. Transactions in blockchain are based on use of public and privatekeys asymmetric cryptography. This work proposes usage of users’ DNA as asupporting technology for storing and recovering their keys in case those keys arelost — as an effective bio-cryptographic recovery method. The RSA private key isresponsible for maintaining the authenticity of the blocks’ wallets throughout anytransaction related to any block of the blockchain. This framework can be used for awide range of applications such as student registration systems at universities: inorder to prevent the forging of student graduation certificates. The experimentalresults demonstrated robustness of the proposed solution, using a number of keysizes. The effectiveness of our approach is compared to that of elliptic curvecryptography keys. Our approach shows that the security and authentication neededfor blockchain technology can be accomplished using DNA combined with an RSAprivate key. On the other hand, the standard EC cryptography shows poorperformance against our suggested method as demonstrated in the discussionsection.

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