Caesar Cipher Program in Java: The Caesar Cipher technique is the simplest and oldest method of encryption in cryptography. In this technique, every character of the message is replaced by its next 3rd character. For example, if the shift position is 3 then every character will be shifted by 3 positions to the right. Plain: … Read more
This is a java program to implement playfair cipher algorithm. The Playfair cipher or Playfair square is a manual symmetric encryption technique and was the first literal digraph substitution cipher. Here is the source code of the Java Program to Enode a Message Using Playfair Cipher. The Java program is successfully compiled and run on … Read more
This is a java program to implement playfair cipher algorithm. The Playfair cipher or Playfair square is a manual symmetric encryption technique and was the first literal digraph substitution cipher. Here is the source code of the Java Program to Decode a Message Encoded Using Playfair Cipher. The Java program is successfully compiled and run … Read more
This is a java program to implement one time pad algorithm. In cryptography, a one-time pad (OTP) is an encryption technique that cannot be cracked if used correctly. In this technique, a plaintext is paired with random, secret key (or pad). Then, each bit or character of the plaintext is encrypted by combining it with … Read more
This is a java program to implement MD5 algorithm. The MD5 message-digest algorithm is a widely used cryptographic hash function producing a 128-bit (16-byte) hash value, typically expressed in text format as a 32 digit hexadecimal number. MD5 has been utilized in a wide variety of cryptographic applications, and is also commonly used to verify … Read more
This is a java program to implement RSA algorithm. RSA is one of the first practicable public-key cryptosystems and is widely used for secure data transmission. In such a cryptosystem, the encryption key is public and differs from the decryption key which is kept secret. In RSA, this asymmetry is based on the practical difficulty … Read more
This is a java program to implement checksum method and verify message. A checksum or hash sum is a small-size datum from an arbitrary block of digital data for the purpose of detecting errors which may have been introduced during its transmission or storage. It is usually applied to an installation file after it is … Read more
This is a java program to implement monoalphabetic cypher. In cryptography, a substitution cipher is a method of encoding by which units of plaintext are replaced with ciphertext, according to a regular system; the “units” may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth. … Read more
This is a java program to implement hill cipher. In classical cryptography, the Hill cipher is a polygraphic substitution cipher based on linear algebra. Invented by Lester S. Hill in 1929, it was the first polygraphic cipher in which it was practical (though barely) to operate on more than three symbols at once. The following … Read more
This is a java program to implement Vigenere cipher. The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. It is a simple form of polyalphabetic substitution. Here is the source code of the Java Program to Implement the Vigenere … Read more
