With Public and Private keys, two keys are used that are mathematically related (they belong as a key pair), but are different. The problem with this type of key arrangement is if you lose the key anyone who finds it can unlock your door. This is the same as the keys (door, car keys) we deal with in everyday life. With a symmetrical key, a key is used to encrypt or sign the message, and the same key is used to decrypt the message. These are considered much more secure than the old symmetrical key arrangement. Symmetrical Keys and Public and Private KeysĪlmost all encryption methods in use today employ public and private keys. RSA, to either encrypt or sign the message. These keys are simply numbers (128 bit being common) that are then combined with the message using a particular method, commonly known as an algorithm- e.g.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |