elisabetta/cryptoseals
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Merge branch 'main' of https://git.vps.francescomancuso.it/elisabetta/cryptoseals
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elisabetta
2026-04-29 10:11:02 +02:00
parent 6068319033 6477512940
commit 6779697607
1 changed files with 6 additions and 1 deletions
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7
backend/src/main/java/com/crypto/Caesar.java
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@@ -6,7 +6,8 @@ public class Caesar {
char encoded[] = plaintext.toCharArray(); char encoded[] = plaintext.toCharArray();
for(int i = 0; i < plaintext.length(); i++){ for(int i = 0; i < plaintext.length(); i++){
encoded[i] = alphabet.charAt(alphabet.indexOf(encoded[i]) + key % 26); if (alphabet.indexOf(encoded[i]) == -1) continue;
encoded[i] = alphabet.charAt((alphabet.indexOf(encoded[i]) + key) % 26);
} }
return String.valueOf(encoded); return String.valueOf(encoded);
} }
@@ -21,6 +22,10 @@ public class Caesar {
for(int key = 0; key < alphabet.length(); key++){ for(int key = 0; key < alphabet.length(); key++){
for(int i = 0; i < ciphertext.length(); i++){ for(int i = 0; i < ciphertext.length(); i++){
if (alphabet.indexOf(encoded[i]) == -1) {
decoded[i] = encoded[i];
continue;
}
char current = encoded[i]; char current = encoded[i];
int pos = alphabet.indexOf(current); int pos = alphabet.indexOf(current);
if(pos != -1) { if(pos != -1) {