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    Bifid Cipher

    Uploaded by

    LladyVivi
    The document describes how to encrypt and decrypt a message using a Bifid cipher with a Polybius square. To encrypt, the message "Pandora" is written out and the row and column numbers from the Polybius square for each letter are written out in pairs of digits. Reading the digits in pairs gives the cipher text "LLOECTF". To decrypt, the cipher text numbers are separated and grouped into pairs, then converted back to letters using the Polybius square to reveal the original message.

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    Bifid Cipher

    Uploaded by

    LladyVivi
    133 views1 page
    The document describes how to encrypt and decrypt a message using a Bifid cipher with a Polybius square. To encrypt, the message "Pandora" is written out and the row and column numbers from the Polybius square for each letter are written out in pairs of digits. Reading the digits in pairs gives the cipher text "LLOECTF". To decrypt, the cipher text numbers are separated and grouped into pairs, then converted back to letters using the Polybius square to reveal the original message.

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    BIFID CIPHER.docx

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    The document describes how to encrypt and decrypt a message using a Bifid cipher with a Polybius square. To encrypt, the message "Pandora" is written out and the row and column numbers from the Polybius square for each letter are written out in pairs of digits. Reading the digits in pairs gives the cipher text "LLOECTF". To decrypt, the cipher text numbers are separated and grouped into pairs, then converted back to letters using the Polybius square to reveal the original message.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    133 views1 page

    Bifid Cipher

    Uploaded by

    LladyVivi
    The document describes how to encrypt and decrypt a message using a Bifid cipher with a Polybius square. To encrypt, the message "Pandora" is written out and the row and column numbers from the Polybius square for each letter are written out in pairs of digits. Reading the digits in pairs gives the cipher text "LLOECTF". To decrypt, the cipher text numbers are separated and grouped into pairs, then converted back to letters using the Polybius square to reveal the original message.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 1

    BIFID CIPHER

    -ENCRYPTION-
    First,we need a polybius square.
    12345
    1ABCDE
    2 F G H I/J K
    3LMNOP
    4QRSTU
    5VWXYZ
    Our message is "Pandora"
    -To encipher the message,write the row and column numbers of the letters in two rows below the
    message.
    PANDORA
    3131341
    5134421
    Then the digits are read off by rows,in pairs and converted back to letters.
    31 31 34 15 44 21 -> L L O E C T F
    So the cipher text is "LLOECTF"
    *Encrypt it using polybius square.
    -DECRYPTION-
    -Separate every whole number to each other.
    31313415134421
    -Count the numbers into and group them into two.
    3131341
    5134421
    35-P
    11-A
    33-N
    14-D
    34-O
    42-R
    11-A

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