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Chapter 8 Secret and Public Keys
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FIGURE 8.0.F01: Using a passphrase for a file encryption key.
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FIGURE 8.0.F02: Hashing a passphrase for a file encryption key.
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FIGURE 8.0.F03: Reusing the same key stream. Courtesy of Dr. Richard Smith
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FIGURE 8.0.F04: Eliminating both key streams with “xor.” Courtesy of Dr. Richard Smith
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FIGURE 8.0.F05: Using a nonce to construct the encryption key.
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FIGURE 8.0.F06: Wrapping a key: The KEK encrypts the CEK.
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FIGURE 8.0.F07: Key splitting with xor.
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FIGURE 8.0.F08: Separation of Duty for an early nuclear missile. Photographed by Dr. Richard Smith at the Titan Missile Museum
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FIGURE 8.0.F09: Keys on the DVD hidden track.
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FIGURE 8.0.F10: Decrypting a DVD sector.
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FIGURE 8.0.F11: Public-key encryption.
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FIGURE 8.0.F12: Constructing the public/private key pair.
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TABLE 8.0.T01: Comparison of secret-key and public-key crypto
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FIGURE 8.0.F13: Asymmetric encryption algorithms.
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FIGURE 8.0.F14: Procedure for Diffie-Hellman secret sharing.
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EQUATION 8.0.Eq01
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EQUATION 8.0.Eq02
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EQUATION 8.0.Eq03
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FIGURE 8.0.F15: Encapsulating a key with Alice’s RSA public key.
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FIGURE 8.0.F16: Retrieving the key with Alice’s RSA private key.
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FIGURE 8.0.F17: Constructing an RSA key pair.
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EQUATION 8.0.Eq04
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TABLE 8.0.T02: Comparable Key Sizes
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FIGURE 8.0.F18: Bit-flipping attack on encryption with xor.
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FIGURE 8.0.F19: Data encrypted with its checksum.
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FIGURE 8.0.F20: An IOU with an adjustable check value.
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EQUATION 8.0.Eq05
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FIGURE 8.0.F21: Encrypting a hash: two steps.
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FIGURE 8.0.F22: Keying a hash: one step.
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FIGURE 8.0.F23: Signing a check with a digital signature.
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FIGURE 8.0.F24: Constructing an RSA digital signature.
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FIGURE 8.0.F25: Verifying an RSA digital signature.
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FIGURE 8.0.F26: Eve performs a bucket brigade attack.
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FIGURE 8.0.F27: Constructing a public-key certificate for Alice.
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FIGURE 8.0.F28: Checking a certificate chain.
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FIGURE 8.0.F29: A certificate hierarchy that spans multiple enterprises.
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FIGURE 8.0.F30: A web of trust.
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FIGURE 8.0.F31: Procedure for verifying a software update.
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FIGURE 8.0.F32: A set of processes for trusted software update.
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FIGURE 8.0.F33: Little brother’s encryption program.
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