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The National Bank of Crimea requires all members to conduct business on - line, and to use El - Gamal signatures to close transactions. It
The National Bank of Crimea requires all members to conduct business online, and to use ElGamal signatures to close transactions. It published the following prime number and primitive root to be used in the signature algorithm: Alice, one of the clients of National Bank of Crimea, published as her public signature key the following Last Friday Alice received a letter from the bank that unless she pays the $ she promised to the bank, the bank will repossess her stereo system. Alice, surprised by the request, asked the bank to provide proof that she owes the bank $ The bank presented the following evidence: Plaintext"I will pay $ a Determine whether is a valid signature for Alice's key. The answer must be supported with a computational evidence. A The signature is valid. B The signature is not valid. b Alice does not recall this promissory note, and decided to investigate further. She asked her family member who works for the Digital Crimes Federal Bureau of Investigation for help. This family member reported a few weeks later to Alice
The National Bank of Crimea requires all members to conduct business online, and to
use ElGamal signatures to close transactions. It published the following prime number
and primitive root to be used in the signature algorithm:
Alice, one of the clients of National Bank of Crimea, published as her public signature
key the following
Last Friday Alice received a letter from the bank that unless she pays the $ she
promised to the bank, the bank will repossess her stereo system. Alice, surprised by the
request, asked the bank to provide proof that she owes the bank $ The bank
presented the following evidence:
Plaintext"I will pay $
a Determine whether is a valid signature for Alice's key. The answer must be
supported with a computational evidence.
A The signature is valid.
B The signature is not valid.
b Alice does not recall this promissory note, and decided to investigate further. She
asked her family member who works for the Digital Crimes Federal Bureau of
Investigation for help. This family member reported a few weeks later to Alice
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