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cryptography is a cornerstone of the modern security technologies used to protect information and resources on both open and closed networks. Cryptography is the science of providing security for information. It has been used historically as a means of providing secure communication between individuals, government agencies, and military forces
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How does crytography work?
no
Who invented crytography?
900 bc
What shows the round Earth on flat maps called?
a projection map
Write a program in java on Crytography?
/*Input: Enter the String: AHFJFJ * Enter the gap : 2 *Output: CJHLHL */ import java.io.*; class Crypt { protected static void main()throws IOException { BufferedReader in=new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter the String: "); String s=in.readLine(),s1=""; System.out.print("Enter the Gap: "); short g=Short.parseShort(in.readLine()); for(short i=0;i<s.length();i++) { char ch=s.charAt(i); if(Character.isUpperCase(ch)) { ch+=g; if(ch>'Z') ch-=26; else if(ch<'A') ch+=26; s1+=ch; } else if(Character.isLowerCase(ch)) { ch+=g; if(ch<'a') ch+=26; else if(ch>'z') ch-=26; s1+=ch; } else if(Character.isDigit(ch)) { ch+=g; if(j>'9') j-=10; else if(j<'0') j+=10; s1+=ch; } else s1+=ch; } System.out.print("String: "+s1); }}
