>> % Name: Anita Blake Partner: Ted Forrester
>> % ID: 014916 ID: 642708
>> % Sec: Yan T 2:30 Sec: Artemov R 1:25
>>
>> plain = 'We Apologize for the Inconvenience';
>> julius = 'abnocdgpwxyefqrstuvhijklmz';
>> caesar = 'deqrfgjszabhituvwxyklmnopc';
>> cipher = transform(julius,caesar,plain);
>> plain2 = transform(caesar,julius,cipher);
>> ok = all(plain == plain2);
>> plain, julius, caesar, cipher, plain2, ok
plain =
We Apologize for the Inconvenience
julius =
abnocdgpwxyefqrstuvhijklmz
caesar =
deqrfgjszabhituvwxyklmnopc
cipher =
Zh Dsrorjlch iru wkh Lqfrqyhqlhqfh
plain2 =
We Apologize for the Inconvenience
ok =
1
>>
>> plain= 'Time to feed the chickens, Paw! Ay-yup! Git the lunch bag, Maw!';
>> top = 'sLvWPdEncFRjQBahOItMzgyxku';
>> bot = 'CpaTQoweZirBYVhlndxSMKuGfj';
>> cipher = transform(top,bot,plain);
>> plain2 = transform(bot,top,cipher);
>> ok = all(plain == plain2);
>> plain, julius, caesar, cipher, plain2, ok
plain =
Time to feed the chickens, Paw! Ay-yup! Git the lunch bag, Maw!
julius =
abnocdgpwxyefqrstuvhijklmz
caesar =
deqrfgjszabhituvwxyklmnopc
cipher =
Xdsw xn iwwo xlw zldzfwec, Qht! Hu-ujq! Kdx xlw pjezl vhk, Sht!
plain2 =
Time to feed the chickens, Paw! Ay-yup! Git the lunch bag, Maw!
ok =
1
>>
>> s = ['a-aAa,-aBBA-23-aBC-ac-AD-13-' ...
'-ada-<aDD>-..-Baa-^^bad-cAB-&cb-CDC-dab-dad-DADA-dc'];
>> [tot,uni,bi] = tally(s);
read 64 characters
>> s,tot,num2str(uni*tot),num2str(bi*tot),uni(1:6),bi(1:6,1:6)
s =
a-aAa,-aBBA-23-aBC-ac-AD-13--ada-<aDD>-..-Baa-^^bad-cAB-&cb-CDC-dab-dad-DADA-dc
tot =
64
ans =
17 20 8 7 12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ans =
0 8 2 3 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
6 3 4 1 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
3 3 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
4 5 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ans =
0.2656 0.3125 0.1250 0.1094 0.1875 0
ans =
0 0.1250 0.0312 0.0469 0.0625 0
0.0938 0.0469 0.0625 0.0156 0.0938 0
0.0469 0.0469 0.0156 0.0156 0 0
0.0625 0.0156 0.0156 0 0.0156 0
0.0625 0.0781 0 0.0312 0.0156 0
0 0 0 0 0 0
>>
>> decrypt('oldannounce.txt','challenge.txt')
reading oldannounce.txt...read 17272 characters
reading challenge.txt...read 387 characters
elapsed_time =
2.4201
swap a<-->v; distance 1.4460; labels abcdefghijklmnopqrstuvwxyz
swap b<-->s; distance 1.3842; labels vbcdefghijklmnopqrstuawxyz
swap c<-->z; distance 1.3510; labels vscdefghijklmnopqrbtuawxyz
swap d<-->q; distance 1.3097; labels vszdefghijklmnopqrbtuawxyc
swap e<-->f; distance 1.2735; labels vszqefghijklmnopdrbtuawxyc
swap e<-->i; distance 1.2569; labels vszqfeghijklmnopdrbtuawxyc
swap g<-->t; distance 1.1816; labels vszqfighejklmnopdrbtuawxyc
swap h<-->u; distance 1.1507; labels vszqfithejklmnopdrbguawxyc
swap e<-->y; distance 1.1269; labels vszqfituejklmnopdrbghawxyc
swap j<-->p; distance 1.0975; labels vszqfituyjklmnopdrbghawxec
swap k<-->x; distance 1.0866; labels vszqfituypklmnojdrbghawxec
swap l<-->e; distance 1.0530; labels vszqfituypxlmnojdrbghawkec
swap m<-->a; distance 1.0380; labels vszqfituypxemnojdrbghawklc
swap n<-->a; distance 1.0086; labels vszqfituypxeanojdrbghmwklc
swap o<-->n; distance 0.9989; labels vszqfituypxenaojdrbghmwklc
swap j<-->o; distance 0.9986; labels vszqfituypxeoanjdrbghmwklc
swap d<-->c; distance 0.9983; labels vszqfituypxejanodrbghmwklc
swap r<-->f; distance 0.9009; labels vszqfituypxejanocrbghmwkld
swap b<-->y; distance 0.8630; labels vszqrituypxejanocfbghmwkld
swap m<-->x; distance 0.8576; labels vszqritubpxejanocfyghmwkld
swap w<-->j; distance 0.8481; labels vszqritubpmejanocfyghxwkld
swap k<-->p; distance 0.8400; labels vszqritubpmewanocfyghxjkld
swap d<-->c; distance 0.8394; labels vszqritubkmewanocfyghxjpld
swap v<-->n; distance 0.8360; labels vszqritubkmewanodfyghxjplc
swap s<-->i; distance 0.8233; labels nszqritubkmewavodfyghxjplc
swap z<-->w; distance 0.8195; labels nizqrstubkmewavodfyghxjplc
swap s<-->x; distance 0.8101; labels niwqrstubkmezavodfyghxjplc
swap b<-->v; distance 0.7759; labels niwqrxtubkmezavodfyghsjplc
swap k<-->c; distance 0.7710; labels niwqrxtuvkmezabodfyghsjplc
swap m<-->s; distance 0.7648; labels niwqrxtuvcmezabodfyghsjplk
swap e<-->f; distance 0.7642; labels niwqrxtuvcsezabodfyghmjplk
swap y<-->f; distance 0.6772; labels niwqrxtuvcsfzabodeyghmjplk
swap p<-->w; distance 0.6756; labels niwqrxtuvcsyzabodefghmjplk
swap k<-->w; distance 0.6753; labels nipqrxtuvcsyzabodefghmjwlk
swap d<-->w; distance 0.6738; labels nipqrxtuvcsyzabodefghmjklw
elapsed_time =
7.3442
decryption key:
nipqrxtuvcsyzabowefghmjkld
abcdefghijklmnopqrstuvwxyz
What I am thinfing (semi-out loud here) is that writing used to
encomjass barious "genres" in one story. It seems life poofs habe
gotten so sjecialived, kew stories do that well any more. I thinf
that Laurell F Hamilton, Diana Gapaldon, and Lois McMaster Puqold do a
good qop ok preafing some ok these parriers, put I am not sure I would
say their writing is lasting (as much I would life it to pe:)).
ans =
[]
>>
>> decrypt('oldannounce.txt','official.txt')
reading oldannounce.txt...read 17272 characters
reading official.txt...read 1452 characters
elapsed_time =
2.5472
swap a<-->j; distance 1.4586; labels abcdefghijklmnopqrstuvwxyz
swap b<-->e; distance 1.4238; labels jbcdefghiaklmnopqrstuvwxyz
swap c<-->s; distance 1.3966; labels jecdbfghiaklmnopqrstuvwxyz
swap d<-->q; distance 1.3504; labels jesdbfghiaklmnopqrctuvwxyz
swap b<-->q; distance 1.1853; labels jesqbfghiaklmnopdrctuvwxyz
swap f<-->t; distance 1.1354; labels jesbqfghiaklmnopdrctuvwxyz
swap g<-->n; distance 1.1056; labels jesbqtghiaklmnopdrcfuvwxyz
swap h<-->c; distance 1.0698; labels jesbqtnhiaklmgopdrcfuvwxyz
swap i<-->l; distance 1.0384; labels jesbqtnciaklmgopdrhfuvwxyz
swap a<-->o; distance 0.9705; labels jesbqtnclakimgopdrhfuvwxyz
swap k<-->v; distance 0.9625; labels jesbqtnclokimgapdrhfuvwxyz
swap i<-->h; distance 0.9202; labels jesbqtnclovimgapdrhfukwxyz
swap m<-->c; distance 0.8897; labels jesbqtnclovhmgapdrifukwxyz
swap g<-->h; distance 0.8505; labels jesbqtnmlovhcgapdrifukwxyz
swap a<-->z; distance 0.8429; labels jesbqtnmlovgchapdrifukwxyz
swap p<-->a; distance 0.8061; labels jesbqtnmlovgchzpdrifukwxya
swap d<-->n; distance 0.7730; labels jesbqtnmlovgchzadrifukwxyp
swap i<-->f; distance 0.7101; labels jesbqtdmlovgchzanrifukwxyp
swap u<-->a; distance 0.6759; labels jesbqtdmlovgchzanrfiukwxyp
swap k<-->o; distance 0.6705; labels jesbqtdmlovgchzunrfiakwxyp
swap w<-->u; distance 0.6647; labels jesbqtdmlkvgchzunrfiaowxyp
swap x<-->y; distance 0.6571; labels jesbqtdmlkvgchzwnrfiaouxyp
swap x<-->o; distance 0.6487; labels jesbqtdmlkvgchzwnrfiaouyxp
swap p<-->n; distance 0.6482; labels jesbqtdmlkvgchzwnrfiaxuyop
swap e<-->k; distance 0.6406; labels jesbqtdmlkvgchzwprfiaxuyon
swap s<-->u; distance 0.6354; labels jksbqtdmlevgchzwprfiaxuyon
swap b<-->d; distance 0.6172; labels jkubqtdmlevgchzwprfiaxsyon
swap t<-->w; distance 0.6129; labels jkudqtbmlevgchzwprfiaxsyon
swap l<-->z; distance 0.5598; labels jkudqwbmlevgchztprfiaxsyon
swap e<-->y; distance 0.5542; labels jkudqwbmzevgchltprfiaxsyon
swap v<-->w; distance 0.5457; labels jkudqwbmzyvgchltprfiaxseon
swap g<-->c; distance 0.5230; labels jkudqvbmzywgchltprfiaxseon
swap g<-->o; distance 0.5055; labels jkudqvbmzywcghltprfiaxseon
swap k<-->w; distance 0.4885; labels jkudqvbmzywcohltprfiaxsegn
swap u<-->d; distance 0.4544; labels jwudqvbmzykcohltprfiaxsegn
elapsed_time =
7.4439
decryption key:
jwduqvbmzykcohltprfiaxsegn
abcdefghijklmnopqrstuvwxyz
to secret operative from evil group of people:
have you infiltrated bureau thirteen yet? beware of yan and
especially dis; they might be onto us. beware also artemov -- we have
reason to suspect he is a double agent, and not just because of his
ethnicity! whoever thought of such a silly stereotype? anyway,
internal reviews by our advisory panel concluded that our plans might backfire,
since we actually live on the same world we're supposedly trying to
nuke -- we're supposed to be "evil," not hella lame or hella stupid.
our new goal is to make a lot of money to fund future egop projects
since we're draining our budget on these blasted encryption keys that are
ans =
[]