version 1.2, 1996/06/26 05:32:01 |
version 1.3, 1997/01/27 20:14:21 |
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and |
and |
.Nm sum |
.Nm sum |
utilities exit 0 on success, and >0 if an error occurs. |
utilities exit 0 on success, and >0 if an error occurs. |
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.Sh WARNING |
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Do not use |
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.Nm sum |
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or |
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.Nm cksum |
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to detect hostile binary modifications. An attacker |
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can trivially produce backdoored daemons which have the same CRC as the |
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standard versions. Use a cryptographic checksum, such as MD5 instead. |
.Sh SEE ALSO |
.Sh SEE ALSO |
The default calculation is identical to that given in pseudo-code |
The default calculation is identical to that given in pseudo-code |
in the following |
in the following |