| Message Digests (2) |
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| • | There
are several good (but possibly no |
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| perfect)
message digest algorithms |
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| • | MD5
is probably the most common one in |
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| use –
128 bit digest |
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| • | has
known weaknesses |
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| • | SHA-1
– 160 bit digest (current best choice) |
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| • | [Another
product of NIST] |
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