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6 Cards in this Set
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- Back
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Digital Envelope is also known as?
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Hybrid cryptography.
(a hybrid system uses a symmetric algorithm to create a secret key that is used to encrypt bulk data (the message), and an asymmetric (public) key is used to encrypt the secret key.) |
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What three things does Digital Signatures provide?
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-- Integrity
-- Authentication -- Non-repudiation |
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Public & Private keys are...
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-- never shared
-- 1,000 - 10,000 times slower than symmetric |
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Diffie-Hellman
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-- oldest
-- does key exchange only |
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El Gamal
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-- based on Diffie Hellman
-- uses discrete logarithms |
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ECC
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-- Elliptic Curve Cryptography
-- math magic -- less computation for same work factor -- cell phones, PDAs |
