Learn Cipher

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Interactive Caesar Shift Key K = {{ caesarShift }}
{{ char }}
{{ getCaesarShiftChar(char) }}
Each letter moves forward {{ caesarShift }} places in the alphabet!
Grid Encryption (2 letters at a time) "HE" → "HI"
3 3
2 5
×
H (7)
E (4)
=
H (7)
I (8)
First Letter: (3×7 + 3×4) mod 26 = 7 (H)
Second Letter: (2×7 + 5×4) mod 26 = 8 (I)
SYS_CRACK_TERMINAL
ONLINE
Scrambled Signal
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Cracking Difficulty Comparison Security Flaws
Caesar (Classical) Keys: 26
0.01 ms (Instant)
Hill 2x2 (Classical) Keys: 450,000+
5 ms (Instant)
AES-128 (Modern) Keys: 3.4 × 10³⁸
Trillions of Years
Classical ciphers scrambles letters. Modern ciphers scrambles binary computer bits using millions of steps!
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