Editing 177: Alice and Bob
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*{{w|Bruce Schneier}} and {{w|Ron Rivest}} are two well-known cryptographers. They have written lots of papers that use Alice and Bob as examples (Alice & Bob fanfic, if you will). | *{{w|Bruce Schneier}} and {{w|Ron Rivest}} are two well-known cryptographers. They have written lots of papers that use Alice and Bob as examples (Alice & Bob fanfic, if you will). | ||
*Public and private keys are two extremely large numbers, chosen such that there's a mathematical relation between them, and yet it's extremely hard (i.e. would take many billions of years) to derive the private key from the public key. They're the basis of {{w|asymmetric cryptography}}. A public-key authenticated signature is a way of cryptographically proving that a certain person created a file, as only that person could have possibly generated that signature. One downside is that anybody who has the public key can verify who a message is from, so it removes plausible deniability; Bob's partner clearly knew that Alice and Bob were communicating, on disks marked by lipstick hearts no less. | *Public and private keys are two extremely large numbers, chosen such that there's a mathematical relation between them, and yet it's extremely hard (i.e. would take many billions of years) to derive the private key from the public key. They're the basis of {{w|asymmetric cryptography}}. A public-key authenticated signature is a way of cryptographically proving that a certain person created a file, as only that person could have possibly generated that signature. One downside is that anybody who has the public key can verify who a message is from, so it removes plausible deniability; Bob's partner clearly knew that Alice and Bob were communicating, on disks marked by lipstick hearts no less. | ||
| β | *A {{w|known-plaintext attack}} is a type of cryptographic attack where at least part of the plaintext (i.e. unencrypted text) of a message is known, and the attacker wants to figure out the keys used to encrypt the message | + | *A {{w|known-plaintext attack}} is a type of cryptographic attack where at least part of the plaintext (i.e. unencrypted text) of a message is known, and the attacker wants to figure out the keys used to encrypt the message. The woman is saying that she should have known all along that the messages were adulterous in nature. |
Finally, in a twist ending, the girlfriend is revealed to be none other than Eve, the ''eave''sdropper, who is also ubiquitous in Alice and Bob stories. Hell hath no fury, indeed. This also may be an allusion to B and E, or breaking and entering, as Eve may have done to get Bob's key. | Finally, in a twist ending, the girlfriend is revealed to be none other than Eve, the ''eave''sdropper, who is also ubiquitous in Alice and Bob stories. Hell hath no fury, indeed. This also may be an allusion to B and E, or breaking and entering, as Eve may have done to get Bob's key. | ||
