Question: Question 9 Symmetric cryptoalgorithms are considered to be practically secure... Not yet answered Select one: Marked out of 1 a. ... since 40-bit key >

 Question 9 Symmetric cryptoalgorithms are considered to be practically secure... Notyet answered Select one: Marked out of 1 a. ... since 40-bitkey > Flag b. ... since 128-bit key question c. ... since

Question 9 Symmetric cryptoalgorithms are considered to be practically secure... Not yet answered Select one: Marked out of 1 a. ... since 40-bit key > Flag b. ... since 128-bit key question c. ... since 256-bit key d. ... since 1024-bit key e. ... since 2048-bit key Question 10 In order to increase the security of typical symmetric cryptoalgorithm two Not yet times, it's necessary... answered Marked out of 1 Select one: a. to increase the keylenght two times b. ... to increase the keylength by two bits c. ... to increase the keylength at least by 22=4 bits d. ... to increase the keylenght 22=4 times e. to increase the keylength by one bit Question 11 Symmetric cryptoalgorithms are used... Not yet answered Select one: Marked out of 1 a. ... for ensuring data intergrity in digital archives P Flag b. ... for ensuring data confidentiality only for communication phase, question not for storing phase c. for ensuring data confidentiality only for storing phase, not for communication phase d. ... for ensuring data integrity in Internet e. ... for ensuring data confidentiality both for communication and storing phases

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