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local bc = require"bc" function string2bc(s) local x=bc.number(0) for i=1,#s do x=16*x+s:byte(i) end return x end public = "10001" private = "816f0d36f0874f9f2a78acf5643acda3b59b9bcda66775b7720f57d8e9015536160e72".. "8230ac529a6a3c935774ee0a2d8061ea3b11c63eed69c9f791c1f8f5145cecc722a220d2bc7516b6".. "d05cbaf38d2ab473a3f07b82ec3fd4d04248d914626d2840b1bd337db3a5195e05828c9abf8de8da".. "4702a7faa0e54955c3a01bf121" modulus = "bfedeb9c79e1c6e425472a827baa66c1e89572bbfe91e84da94285ffd4c7972e1b9be3".. "da762444516bb37573196e4bef082e5a664790a764dd546e0d167bde1856e9ce6b9dc9801e4713e3".. "c8cb2f12459788a02d2e51ef37121a0f7b086784f0e35e76980403041c3e5e98dfa43ab9e6e85558".. "c5dc00501b2f2a2959a11db21f" url = "www.lua.org" m = string2bc(url) d = bc.number(public) e = string2bc(private) n = string2bc(modulus) print("Message as big-integer:\n"..tostring(m)) x = bc.powmod(m,e,n) print("\nEncrypted = \n"..tostring(x)) y =bc.powmod(x,d,n) print("Decrypted Message = \n"..tostring(y))
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