Copyright 2009 by Alexander Stanoyevitch, All Rights Reserved
This converts a string of digits to a vector of one-character digits
Usage:
To convert a string of digits to a vector: Enter a string of digits and press enter.
Ex:
1298310981580123009123
To convert a vector to a string of digits: Enter a vector of one-character digits, separated by spaces, and press enter.
Ex:
1 7 4 1 0 2 4 3 4 6 9 0 2 5 4 3 4 1 4 7
9 7 4 6 0 8 2 0 1 7 4 2 3 5 4 3
This converts a string of upper-case text to its integer representation in the range [0,25], where A=0...Z=25, and vice-versa.
Usage:
To convert Upper-Case text to integer representation: Enter a string of Upper-Case letters and press enter.
Ex:
THEQUICKBROWNFOXJUMPSOVERTHELAZYDOG
To convert integers to Upper-Case text: Enter a sequence of integers in the range [0,25], separated by spaces, and press enter.
Ex:
19 7 4 16 20 8 2 10 1 17 14 22 13 5 14
23 9 20 12 15 18 14 21 4 17 19 7 4 11 0 25 24 3 14 6
This converts a string of lower-case text to its integer representation in the range [0,25], where a=0...z=25., and vice-versa.
Usage:
To convert Lower-Case text to integer representation: Enter a string of Lower-Case letters and press enter.
Ex:
thelazybrownfoxjumpsoverthequickdog
To convert integers to Lower-Case text: Enter a sequence of integers in the range [0,25], separated by spaces, and press enter.
Ex:
19 7 4 11 0 25 24 1 17 14 22 13 5 14 23
9 20 12 15 18 14 21 4 17 19 7 4 16 20 8 2 10 3 14 6
Given 2 of a plaintext, key, or ciphertext, this uses a shift cipher to determine the third.
Usage:
To encipher a plaintext string with a given key: Select the ciphertext button. Enter the plaintext as a lowercase string with no spaces, and an integer k>0 as the key, and press enter.
Ex:
packmyboxwithfivedozenliquorjugs
3
To decipher a ciphertext string with a given key: Select the plaintext button. Enter the ciphertext as an uppercase string with no spaces, and an integer k>0 as the key, and press enter.
Ex:
3
SDFNPBERAZLWKILYHGRCHQOLTXRUMXJV
To determine a key given a ciphertext and a plaintext: Select the key button. Enter the plaintext as a lowercase string with no spaces, the ciphertext as an uppercase string with no spaces, and press enter.
Ex:
packmyboxwithfivedozenliquorjugs
SDFNPBERAZLWKILYHGRCHQOLTXRUMXJV
Given 2 of a plaintext, key, or ciphertext, this uses the Vignere cipher to determine the third.
Usage:
To encipher a plaintext string with a given key: Select the ciphertext button. Enter the plaintext as a lowercase string with no spaces, a keyword as a lowercase string with no spaces, and press enter.
Ex:
theeaglesoarsatmidnight
diner
To decipher a ciphertext string with a given key: Select the plaintext button. Enter the ciphertext as an uppercase string with no spaces, a keyword as a lowercase string with no spaces, and press enter.
Ex:
diner
WPRIRJTRWFDZFEKPQQRZJPG
To determine a key given a ciphertext and a plaintext: Select the key button. Enter the plaintext as a lowercase string with no spaces, the ciphertext as an uppercase string with no spaces, and press enter.
Ex:
theeaglesoarsatmidnight
WPRIRJTRWFDZFEKPQQRZJPG
Given a lower bound, n, upper bound, m, and vector length, k, this produces k integers in the range [n,m) = the set of integers greater than or equal to n, but less than m.
Usage:
To generate a vector of k integers in the range [n,m), enter a non-negative integer n as the lower bound, a non-negative integer m>n as the upper bound, a vector length k, and press enter.