BLISK: Boolean circuit Logic Integrated into the Single Key

The technique of converting nested policies into Conjunctive Normal Form (CNF) and then applying the BLISK method is not only a practical approach but also serves as a generalization of strategies for handling complex policy structures, as highlighted by the discussion on DelvingBitcoin.org. This method is effectively implemented in the reference framework available at the BLISK GitHub repository, which showcases the versatility and efficiency of the compiler in dealing with S-expression policies. These policies are characterized by monotone boolean functions, including OR and AND gates, and the compiler's ability to translate them into CNF format is a cornerstone of its functionality.

One of the standout features of BLISK is its support for keywords that articulate precompiled policies, facilitating the translation of expressions like (threshold 3 A B C D E) directly into a 3-of-5 threshold policy in CNF. This capability underscores the system's adaptability and its potential to manage a wide range of monotone policies, no matter their complexity. An example provided demonstrates this process, where users can engage in compiling S-expressions, followed by resolving and enduring a MuSig2 session. The detailed steps for this procedure are accessible through an example in the BLISK documentation, offering a comprehensive guide for users looking to explore the full range of functionalities provided by BLISK. This approach not only simplifies the handling of intricate policies such as an 11-of-15 threshold Liquid federation policy but also enhances the accessibility and user-friendliness of cryptographic operations.