|md5, sha1, sha256, sha512(1)||calculate a message digest (checksum) for a file|
|md5, MD5Init, MD5Transform(9)||message digest routines|
|MD5(1)||General Commands Manual||MD5(1)|
calculate a message digest (checksum) for a file
These utilities take as input a message of arbitrary length and produce as output a message digest (checksum) of the input.
Two messages having the same message digest (a collision) have been produced for MD5 and for SHA-1, so their use is deprecated.
The options for use with each command are as follows:
-cflag, only print the failed cases.
-tmultiple times results in the number of rounds being multiplied by 10 for each additional flag.
These utilities exit 0 on success, and >0 if an error occurs.
R. Rivest, The MD5 Message-Digest Algorithm, RFC 1321, April 1992. J. Burrows, The Secure Hash Standard, FIPS PUB 180-1.
D. Eastlake and P. Jones, US Secure Hash Algorithm 1 (SHA1), RFC 3174, September 2001. Secure Hash Standard, FIPS PUB 180-2.
|January 25, 2019||OpenBSD-current|