Vigenere Key:

aaaaaaaaabaaaaaaaaabaaaaaaaaabaaaaaaaaabaaaaaaaaabaaaaaaaaabaaaaaaaaabaaaaaaaaab
aaaaaaaaabaaaaaaaaabaaaaaaaaab


Plaintext:

abcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcde
fghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghij
klmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmno
prstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstu
vwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyz
abcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcdefghijklmnoprstuvwxyzabcde
fghijklmnoprstuvwxyzxxxxxxxxxxxx


Ciphertext:

abcdefghikklmnoprstvvwxyzabcdffghijklmnpprstuvwxyaabcdefghikklmnoprstvvwxyzabcdf
fghijklmnpprstuvwxyaabcdefghikklmnoprstvvwxyzabcdffghijklmnpprstuvwxyaabcdefghik
klmnoprstvvwxyzabcdffghijklmnpprstuvwxyaabcdefghikklmnoprstvvwxyzabcdffghijklmnp
prstuvwxyaabcdefghikklmnoprstvvwxyzabcdffghijklmnpprstuvwxyaabcdefghikklmnoprstv
vwxyzabcdffghijklmnpprstuvwxyaabcdefghikklmnoprstvvwxyzabcdffghijklmnpprstuvwxya
abcdefghikklmnoprstvvwxyzabcdffghijklmnpprstuvwxyaabcdefghikklmnoprstvvwxyzabcdf
fghijklmnpprstuvwxyaxxxxxxxxxyxx