Identifying a Fraud in a Group of Files

Chapter 7 Secret Key Assurances

pages 59-62: Integrity

How cryptographic fingerprints work

Hands-on cryptographic fingerprints

· Verify your copy of DoCrypt against our published fingerprint

(Click File radio button to fingerprint our program doCrypt.jar.

Matching it against our website's fingerprint verifies its integrity.)

· Using fingerprints at end of DES–AES Messages

Shows the constancy of crypto fingerprints.

· more

see Message and/or File Learn More

FingerPrint a Group-of-Files Example

Launching fingerPrinter here will do (1) and (2) below

for CURRENT_CONFIG (the current configuration)


Another Strong Argument for FingerPrints

You might, reasonably, think encrypted text can't changed

so it decrypts to meaningful text. Not so. See this

'corrupt encryption' hands-on. (also at Message Cipher Learn More)