objectives of financial reproting to external investors and creditors inculde preparing information about all of the following except
A. informaiton used to determine which products to produce
B. informaiton about ecnomic resources, claims to those resources, and changes in both resources and cliams
C. information that is useful in assessing in the amount,timing, and uncertainty of future cash flows.
D. information that is useful in making investment and credit decisons
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凯撒加密,明文为help,偏移量(密钥)为 4,密文是( )
凯撒密码,密文为oryh,下面哪一个有可能是明文
A. live
B. like
C. love
D. look
下列属于对称密码体制的是
A. ElGamal
B. RSA
C. DES
D. AES
凯撒密码是一种替换加密的技术?
A. 对
B. 错