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* SM603M-2526PSP01 - Mathematics for Cryptography (INGE-1-NEW-SEM-P, INGE-1-NEW)
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To communicate between them, Anaïs and Bastien use an alphabet of only ten letters:
a = 0, b = 1, c = 2, d = 3, e = 4, f = 5, g = 6, h = 7, i = 8, j = 9.
To encipher their messages, they decide to use the generalised Vigenère cipher on bigrams.
Bastien receives from Anaïs the ciphertext EGAE
Decipher the message knowing that the enciphering key is
A :
2 1
1 4
B :
2
7
Your answer will be a four letters word written in capital letters with no spaces.
To communicate between them, Anaïs and Bastien use an alphabet of only ten letters:
a = 0, b = 1, c = 2, d = 3, e = 4, f = 5, g = 6, h = 7, i = 8, j = 9.
To encipher their messages, they decide to use the generalised Vigenère cipher on bigrams.
Bastien receives from Anaïs the ciphertext FEGJ
Decipher the message knowing that the enciphering key is
A :
3 2
4 3
B :
4
8
Your answer will be a four letters word written in capital letters with no spaces.
To communicate between them, Anaïs and Bastien use an alphabet of only ten letters:
a = 0, b = 1, c = 2, d = 3, e = 4, f = 5, g = 6, h = 7, i = 8, j = 9.
To encipher their messages, they decide to use the generalised Vigenère cipher on bigrams.
Bastien receives from Anaïs the ciphertext CCFC
Decipher the message knowing that the enciphering key is
A :
6 1
1 7
B :
6
1
Your answer will be a four letters word written in capital letters with no spaces.