'Key rotation schedule' presentation slideshows

Data Encryption Standard - DES

DES was developed as a standard for communications and data protection by an IBM research team, in response to a public request for proposals by the NBS - the National Bureau of Standards (which is now known as NIST). Data Encryption Standard - DES. Lecture Plan. Review of Encryption

1.51k views • 63 slides

Data Encryption Standard - DES

DES was developed as a standard for communications and data protection by an IBM research team, in response to a public request for proposals by the NBS - the National Bureau of Standards (which is now known as NIST). Data Encryption Standard - DES. Lecture Plan. Review of Encryption

713 views • 63 slides

Block Ciphers

Block Ciphers. Recall: Private-Key Encryption Algorithms. Also called single-key or symmetric key algorithms Both parties share the key needed to encrypt and decrypt messages, hence both parties are equal

595 views • 48 slides

477 views • 36 slides

Block vs Stream Ciphers

Block vs Stream Ciphers. block ciphers process messages in into blocks, each of which is then en/decrypted like a substitution on very big characters 64-bits or more stream ciphers process messages a bit or byte at a time when en/decrypting many current ciphers are block ciphers

843 views • 14 slides