Two Approaches That Use a Block Cipher to Build a PNRG

question 7

Multiple Choice

Two approaches that use a block cipher to build a PNRG and have gained widespread acceptance are:

• A)CTR mode and CFB mode
• B)CTR mode and OFB mode
• C)CBC mode and CFB mode
• D)OFB mode and ECB mode

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Definitions:

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