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Which two statements about the SHA-1 algorithm are true? (Choose two.)
A. The SHA-1 algorithm is considered secure because it always produces a unique hash for the same message.
B. The SHA-1 algorithm takes input message of any length and produces 160-bit hash output.
C. The SHA-1 algorithm is considered secure because it is possible to find a message from its hash.
D. The purpose of the SHA-1 algorithm is to provide data confidentiality.
E. The purpose of the SHA-1 algorithm is to provide data authenticity.