3min tech talk on cryptography
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CRYPTOGRAPHY • A word with Greek origins, means “secret writing”. • art of transforming messages to secure and immune to attacks . Cryptography Issues: Confidentiality: End-Point Authentication: Message Integrity & Message Nonrepudiation: Entity Authentication: Definition: Keywords: o Plaintext: original message and Ciphertext: encrypted o Cipher: Encryption and Decryption algorithms o Key: a set of numbers
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Transcript of 3min tech talk on cryptography
CRYPTOGRAPHY
• A word with Greek origins, means “secret writing”.• art of transforming messages to secure and immune to attacks.
Cryptography Issues:Confidentiality:End-Point Authentication:Message Integrity & Message Nonrepudiation: Entity Authentication:
Definition:
Keywords:oPlaintext: original message and Ciphertext: encrypted oCipher: Encryption and Decryption algorithms oKey: a set of numbers
Cryptography Categories:• We can divide all the cryptography algorithms (ciphers) into two groups:
• Symmetric key (also called secret-key) cryptography algorithms and
• Asymmetric key (also called public-key) cryptography algorithms.
CRYPTOGRAPHY
Famous Algorithms/Ciphers And Applications:
• Modem symmetric-key ciphers: DES and AES
• RSA Algorithm: Rivest, Shamir, and Adleman of MIT
• Quantum Cryptography:
Keeping your Secrets secret!
●Used in the military and the government
●Now used in everyday life:–Online banking, E-commerce
–Student records, health records, tax records etc.
–ATM machines
–Social networking (emails, texts, instant messengers), Businesses
CRYPTOGRAPHY
Uses of Cryptography:
