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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3544/CH2/EX2.54/Ex2_54.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3544/CH2/EX2.54/Ex2_54.sce')
| -rw-r--r-- | 3544/CH2/EX2.54/Ex2_54.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/3544/CH2/EX2.54/Ex2_54.sce b/3544/CH2/EX2.54/Ex2_54.sce new file mode 100644 index 000000000..fc7803371 --- /dev/null +++ b/3544/CH2/EX2.54/Ex2_54.sce @@ -0,0 +1,24 @@ +// Diffie-Hellman key exchange
+
+n = 11 // Two prime numbers
+g = 7 //need not be kept secret
+printf("n: %d\ng: %d\n",n,g)
+
+x = 3 // Alice's secret random number
+A = modulo((g^x),n) // Alice's message to Bob
+ //A = 2
+
+y = 6 // Bob's secret random number
+B = modulo((g^y),n) // Bob's message to Alice
+ //B = 4
+
+printf("x: %d\ny: %d\nA: %d\nB: %d\n",x,y,A,B)
+
+K1 = modulo((B^x),n) // Alice's key
+ //K1 = 9
+
+K2 = modulo((A^y),n) // Bob's key
+ //K2 = 9
+printf('Alice''s Key %d\n',K1)
+printf('Bob''s Key %d',K2)
+ // K1 = K2, thus both Alice and Bob have the same key
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