Question 1 : Merkle hellman is a symmetric cryptosystem.
1. True
2. False
3.
4.
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Question 2 : What is the key size allowed in PGP?
1. 1024-1056
2. 1024-4056
3. 1024-4096
4. 1024-2048
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Question 3 : Public key cryptosystem uses same key for both encryption and decryption.
1. True
2. False
3.
4.
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Question 4 : In which method, key-stream is generated independently?
1. Synchronous
2. Self synchronous
3. Synchronous & Self synchronous
4. None of the mentioned
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Question 5 : PGP system uses
1. Private key system
2. Public key system
3. Private & Public key system
4. None of the mentioned
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Question 6 : Pretty good privacy program is used for
1. Electronic mails
2. File encryption
3. Electronic mails & File encryption
4. None of the mentioned
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Question 7 : Examples of hash functions are
1. MD5
2. SHA-1
3. MD5 & SHA-1
4. None of the mentioned
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Question 8 : Public key cryptosystem is also known as
1. One way function
2. Two way function
3. Feedback function
4. None of the mentioned
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Question 9 : Knapsack problem can be solved by
1. Public key cryptosystem
2. Private key cryptosystem
3. Public & Private key cryptosystem
4. None of the mentioned
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Question 10 : Which algorithm is used for public key encryption?
1. RSA
2. Diffie-Hellman
3. RSA & Diffie-Hellman
4. None of the mentioned
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