WHAT IS THE WORD COUNT FOR THE FOLLOWING EXCLUDING SOURCES: "The advancing convolution of cryptographic ransomware, notably those founded on Feistel cipher architectures, demands thorough security scrutiny to mitigate prevalent cryptographic incursions (Anderson, 2008; Stinson, 2005). This prototype integrates the principles of transportation and substitution amid a Feistel construct, establishing a labyrinthine encryption approach- this resultantly presents considerable obstacles for adversaries seeking to decrypt files, and/ or locate and eradicate the ransomware sans financial indemnity (Bertino & Sandhu, 2005; Ferguson, et al., 2010). This cryptographic model employs successive encryption cycles, interweaving transposition and substitution procedures- such recursive profundity in encryption elevates the computational sophistication requisite for decrypting the cipher devoid of comprehension of the key, accordingly, subverting the efficacy of MitM attacks (Diffie & Hellman, 1976). Sequentially, the complexity of each cycle’s output heightens, diminishing the chance of discerning intermediate plaintext states imperative in foiling MitM attacks. Frequency analysis, an acclaimed instrument in cryptanalysis [the study of decrypting cryptographic systems (Stinson, 2005)] in the face of basic substitution ciphers, encounters a pronounced decline in effectiveness against the multifaceted encryption system of this ransomware in question. Characteristically, the Feistel structure systematically transmutes character frequency distributions across its encryption cycles, masterfully obsoleting frequency analysis for cipher deconstruction (Sinkov & Feil, 2009). Moreover, the presence of polyalphabetic components unremittingly modulates the substitution protocol, consequently corroding frequency analysis initiatives (Singh, 1999). Feistel-centric architectures, with their dependency on extensive keys of variable length, inherently possess vigorous defensive measures to combat brute force attacks (Stinson, 2005). This defence is fortified by an immense key space, via synthesising multiple conventional ciphers, rendering the notion of a meticulous key search ineffective within any feasible timeframe, consequently affording preservation against brute force attacks. Moreover, the implementation of a versatile key generation model, distinctively allocating keys for individual scenarios, adds a layer of convolutedness- subsequently thwarting brute force attack attempts (Schneier, 1996; Katz & Lindell, 2014).  Decryption endeavours, absent the direct procurement of the corresponding decryption key is profoundly taxing due to the aforementioned cryptographic encumbrances. Nevertheless, one cannot afford to ignore conceivable theoretical susceptibilities regarding cryptanalysis; the domain of cryptographic attacks is in perpetual flux, demanding sustained observances and optimisations to the encryption framework applied by the ransomware. In the realm of identifying ransomware, elaborate obfuscation alongside C&C communicative strategies elucidated herein serve to impede conventional heuristic and signature-based technologies (Ucci, et al., 2019). Nevertheless, the utilisation of sophisticated behavioural analysis instrumentation, monitoring system operations for deviations indicative of ransomware, yield a tangible method for discernment and deterrence without acceding to monetary demands. The engagement of decentralised machine learning-oriented models demonstrates the potential to distinguish the nuanced behavioural modalities of ransomware operations, promoting an anticipatory security stance (Apruzzese, et al., 2018). Warding off reverse engineering pursuits- imperative for the exposure and comprehension of the inner machinations of the ransomware- (as mentioned previously) (necessitates) the strategic (use) of obfuscation techniques. Harnessing the prowess of (refined) software protection tools [take Enigma Protector and Code Virtualizer as exemplars], they metamorphose plain code into a confounding conundrum, (thereby) vastly (impeding) the reverse engineering process. This strategy adeptly shrouds logical patterns in secrecy and "