I … This makes it possible to switch between algorithms more easily, even during runtime if so required. 6. The type of key should however match the implemented algorithm. In this, the same key (secret key) and algorithm is used to encrypt and decrypt the message. As mentioned, there is also a public key.This causes some confusion, as some people assume that a bitcoin wallet address and the public key are the same. Both are keys that should be kept hidden, thus the similarity in names. Cryptography is classified into symmetric cryptography, asymmetric cryptography and hashing. This key must be random, or cryptographically generated in a way that makes it look random. 2. Asymmetric Encryption Asymmetric encryption is a technique that allows anyone to send encrypted messages to a receiver. When performing authentication, SSL uses a technique called public-key cryptography.. Public-key cryptography is based on the concept of a key pair, which consists of a public key and a private key.Data that has been encrypted with a public key can be decrypted only with the corresponding private key. For symmetric encryption, the same key is used to encrypt the message and to decrypt it. 1. Public Keys, Private Keys, and Certificates. But we know if got your attention. When you log in, PuttY sends the private key, in combination with the passphrase, over a secure channel to connect with the public key. A public key is one that you give out to anyone that wants to send you a message that only you can read. The public key is made available through the public accessible directory. This switches over for private keys. Asymmetric Encryption Asymmetric encryption is a technique that allows anyone to send encrypted messages to a receiver. In general, these terms refer to keys used in two different kinds of cryptography, symmetric and asymmetric. Public key is a type of lock used with an encryption algorithm to convert the message to an unreadable form. One algorithm is used for encryption and decryption with a pair of keys, one for encryption and one for decryption. Cryptography is the science of secret writing with the intention of keeping the data secret. It is based on cryptographic algorithms for generating matching pairs of public/private keys such that the private key can't be guessed from the public key. Private Key Public Key; 1. A private key can only decrypt its matching public key, as well as encrypting with a private key can only be decrypted by the matching public key. If it fits, it authenticates you. In public key cryptography, two keys are used, one key is used for encryption and … This is checked at runtime, resulting in a InvalidKeyException if the key and algorithm do not match.