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The data provided in DES RFC states that it took approximately $250,000 to brute force DES in 1998. Assuming that cost would be halved every

The data provided in DES RFC states that it took approximately $250,000 to brute force DES in 1998. Assuming that cost would be halved every N months where N = 18, what would the cost of such a cracking device be in 2026 considering all other variables are held constant. 

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