Scrambled Alphabet

An improvement to the Ceaser code is to scramble up the mapping, such as in a code mapping. In this case a random mapping is used to deter the conversion. As there are more mappings, it improves the security of the code (as there can be 4.03x10^26 mappings), but it is still seen as being insecure as the probability of the letter in the mapped code is typically a pointer to the mapping. A formal analysis of the probabilities is given in the table below, where the letter ‘e’ is the most probable, followed by ‘t’, and then ‘o’, and so on. It is also possible to look at two-letter occurrences (digrams), or at three-letter occurrences. The key to cracking this code is to determine the probabilities of the letters in the code, and match them up with the expected probabilities.

Letters (%)	Digrams (%)	Trigrams (%)	Words (%)
E 13.05	TH 3.16	THE 4.72	THE 6.42
T 9.02	IN 1.54	ING 1.42	OF 4.02
O 8.21	ER 1.33	AND 1.13	AND 3.15
A 7.81	RE 1.30	ION 1.00	TO 2.36
N 7.28	AN 1.08	ENT 0.98	A 2.09
I 6.77	HE 1.08	FOR 0.76	IN 1.77
R 6.64	AR 1.02	TIO 0.75	THAT 1.25
S 6.46	EN 1.02	ERE 0.69	IS 1.03
H 5.85	TI 1.02	HER 0.68	I 0.94
D 4.11	TE 0.98	ATE 0.66	IT 0.93
L 3.60	AT 0.88	VER 0.63	FOR 0.77
C 2.93	ON 0.84	TER 0.62	AS 0.76
F 2.88	HA 0.84	THA 0.62	WITH 0.76
U 2.77	OU 0.72	ATI 0.59	WAS 0.72
M 2.62	IT 0.71	HAT 0.55	HIS 0.71
P 2.15	ES 0.69	ERS 0.54	HE 0.71
Y 1.51	ST 0.68	HIS 0.52	BE 0.63
W 1.49	OR 0.68	RES 0.50	NOT 0.61
G 1.39	NT 0.67	ILL 0.47	BY 0.57
B 1.28	HI 0.66	ARE 0.46	BUT 0.56
V 1.00	EA 0.64	CON 0.45	HAVE 0.55
K 0.42	VE 0.64	NCE 0.43	YOU 0.55
X 0.30	CO 0.59	ALL 0.44	WHICH 0.53
J 0.23	DE 0.55	EVE 0.44	ARE 0.50
Q 0.14	RA 0.55	ITH 0.44	ON 0.47
Z 0.09	RO 0.55	TED 0.44	OR 0.45

The following is an encoded message (look for common words such as "the", "and" and "so" ):

tzf hbcq boybqtbmf ja ocmctbe tfqzqjejmv jyfl bqbejmrf cn tzbt ocmctbe ncmqben blf efnn baafqtfo gv qjcnf. bqv rqwbqtfo ocntjltcjq boofo tj b ncmqbe cn ofnqlcgfo bn qjcnf. tzcn qjreo gf mfqflbtfo gv futflqbe firckhfqt kljorqcqm bclgjlqf ntbtcq, aljh jtzfl ncmqben qjrkecqm cqtj tzf ncmqbe'n kbtz (qljnn-tbed), aljh wctzcq fefqtlcqbe qjhkjqfqtn, aljh lfqjlocqm bqo kebvgbqd hfocb, bqo nj jq. b qjhkblbtjl jrtkrtn b zcmz efyfe ca tzf ncmqbe yjetbmf cn mlfbtfl tzbq tzf tzlfnzjeo yjetbmf, fenf ct jrtkrtn b ejw. ca tzf qjcnf yjetbmf cn efnn tzbq tzf tzlfnzjeo yjetbmf tzfq tzf qjcnf wcee qjt baafqt tzf lfqjyflfo ncmqbe. fyfq ca tzf qjcnf cn mlfbtfl tzbq tzcn tzlfnzjeo tzflf blf tfqzqcirfn wzcqz qbq lforqf ctn faafqt. ajl fubhkef, futlb gctn qbq gf boofo tj tzf obtb fctzfl tj oftfqt flljln jl tj qjllfqt tzf gctn cq flljl.

eblmf bhjrqtn ja ntjlbmf blf lfirclfo ajl ocmctbe obtb. ajl fubhkef, nfyfqtv hcqrtfn ja zcac irbectv hrncq lfirclfn jyfl ncu zrqolfo hfmgvtfn ja obtb ntjlbmf. tzf obtb jqqf ntjlfo tfqon tj gf lfecbgef bqo wcee qjt ofmlbof jyfl tchf (futlb obtb gctn qbq benj gf boofo tj qjllfqt jl oftfqt bqv flljln). tvkcqbeev, tzf obtb cn ntjlfo fctzfl bn hbmqftcq acfeon jq b hbmqftcq ocnd jl bn kctn jq bq jktcqbe ocnd. tzf bqqrlbqv ja ocmctbe nvntfhn ofkfqon jq tzf qrhgfl ja gctn rnfo ajl fbqz nbhkef, wzflfbn bq bqbejmrf nvntfh'n bqqrlbqv ofkfqon jq qjhkjqfqt tjeflbqqf. bqbejmrf nvntfhn benj kljorqf b ocaaflcqm lfnkjqnf ajl ocaaflfqt nvntfhn wzflfbn b ocmctbe nvntfh zbn b ofkfqobgef lfnkjqnf.

ct cn yflv ocaacqret (ca qjt chkjnncgef) tj lfqjyfl tzf jlcmcqbe bqbejmrf ncmqbe batfl ct cn baafqtfo gv qjcnf (fnkfqcbeev ca tzf qjcnf cn lbqojh). hjnt hftzjon ja lforqcqm qjcnf cqyjeyf njhf ajlh ja acetflcqm jl nhjjtzcqm ja tzf ncmqbe. b mlfbt boybqtbmf ja ocmctbe tfqzqjejmv cn tzbt jqqf tzf bqbejmrf obtb zbn gffq qjqyfltfo tj ocmctbe tzfq ct cn lfebtcyfev fbnv tj ntjlf ct wctz jtzfl krlfev ocmctbe obtb. jqqf ntjlfo cq ocmctbe ct cn lfebtcyfev fbnv tj kljqfnn tzf obtb gfajlf ct cn qjqyfltfo gbqd cqtj bqbejmrf.

bq boybqtbmf ja bqbejmrf tfqzqjejmv cn tzbt ct cn lfebtcyfev fbnv tj ntjlf. ajl fubhkef, ycofj bqo brocj ncmqben blf ntjlfo bn hbmqftcq acfeon jq tbkf bqo b kcqtrlf cn ntjlfo jq kzjtjmlbkzcq kbkfl. tzfnf hfocb tfqo tj boo qjcnf tj tzf ncmqbe wzfq tzfv blf ntjlfo bqo wzfq lfqjyflfo (nrqz bn tbkf zcnn). rqajltrqbtfev, ct cn benj qjt kjnncgef tj oftfqt ca bq bqbejmrf ncmqbe zbn bq flljl cq ct.

The occurances are:
A is 48
B is 184
C is 150
D is 5
E is 89
F is 253
G is 23
H is 35
I is 5
J is 155
K is 35
L is 120
M is 60
N is 144
O is 94
P is 0
Q is 187
R is 39
S is 0
T is 193
U is 7
V is 32
W is 11
X is 0
Y is 25
Z is 71

Coding	Answer	Result
What is the first word:		Incorrect
What is the second word:		Incorrect
What is the third word:		Incorrect
	Score	0

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