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Could anyone please tell me how to to Estimate the probability of success of a Turing-Welchman attack as a function of the length of a crib (known plaintext)?? for example we have the : plain text=ERLXTRFXRDUGDX and cipher=XMQEEEWMEXKLRE

the ring settings are QEV AND these are the wirings of the rotors n=right, m=middle, l=left

x ABCDEFGHIJKLMNOPQRSTUVWXYZ N(x) BDFHJLCPRTXVZNYEIWGAKMUSQO x ABCDEFGHIJKLMNOPQRSTUVWXYZ M(x) AJDKSIRUXBLHWTMCQGZNPYFVOE x ABCDEFGHIJKLMNOPQRSTUVWXYZ L(x) EKMFLGDQVZNTOWYHXUSPAIBRCJ x ABCDEFGHIJKLMNOPQRSTUVWXYZ R(x) YRUHQSLDPXNGOKMIEBFZCWVJAT

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