Encryption

Encryption

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  A PRESENTATION ON “DATA ENCRYPTION” Presented by:Anu bala Roll no 3373
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        Data encryption definition. Typesof data encryption. Difference between symmetric and asymmetric. Encryption Methods. Data Encryption Standard (DES). Public Key Cryptosystem CONTENT
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   Data encryption refersto mathematical calculations and algorithmic schemes that transform plaintext into cyphertext, a form that is non-readable to unauthorized parties. The recipient of an encrypted message uses a key which triggers the algorithm mechanism to decrypt the data, transforming it to the original plaintext version Data encryption definition
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  Data encryption
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  *plaintext *encryption algorithm *public andprivate key *cipher text * decryption algorithm A public key encryption scheme has six ingredients
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   In symmetric (Single key): Theencryption and decryption keys are the same. Types of data encryption
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  .  Symmetric key encryption isalso known as private encryption, because it uses the same key and same cryptographic algorithm to encrypt and decrypt data.
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  A symmetric encryptionscheme has five ingredients  * Plaintext * Encryption Algorithm * Secret key * Cipher Text * Decription
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   In asymmetric (two keys): Theencryption and decryption keys are different. .
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     The symmetric onekey is used for symmetric and a symmetric but in asymmetric different keys are use for encryption and description. In symmetric, sender and receiver must share the algorithm and key but in a symmetric sender and receiver must have one matched pair of keys. In symmetric key must be kept secret but in asymmetric two keys must of kept secret. Difference b/w Asymmetric & Symmetric Encryption
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  Thanks