Criptografia Simétrica Symmetric key encrypts and decrypts data
{"Image DocumentName": "Criptografia Sim\u00e9trica Symmetric key encrypts and decrypts data", "Image ImageDescription": "Uma s\u00f3 chave para criptografar e descriptografar. Baixo overhead. <SLIDETITLE>Symmetric Encryption.</SLIDETITLE> <KEYWORDS>Symmetric key; encryption</KEYWORDS> <KEYMESSAGE> Explain the basics of symmetric encryption. </KEYMESSAGE> <SLIDEBUILDS>0</SLIDEBUILDS> <SLIDESCRIPT> Symmetric encryption uses the same key to encrypt and decrypt data. The key used for symmetric encryption is sometimes known as a session key. If symmetric encryption is used inside a database a single key is created that can both encrypt and decrypt the data, if it is going to be used between communication partners a copy of the same key must be held by both partners. Symmetric encryption uses shorter keys that asymmetric encryption and has a lower resource overhead. For this reason symmetric encryption is often used for bulk encryption and decryption. </SLIDESCRIPT> <SLIDETRANSITION> Let s have a look at the symmetric encryption process. </SLIDETRANSITION> <ADDITIONALINFORMATION><ITEM></ITEM></ADDITIONALINFORMATION> CREATE SYMETRIC KEY <nome_da_chave> WITH ALGORITHM = TRIPLE_DES. ENCRYPTION BY PASSWORD = Symmetric. Symmetric. Symmetric key encrypts and decrypts data.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}