diff options
Diffstat (limited to 'sbin/md5/md5.1')
| -rw-r--r-- | sbin/md5/md5.1 | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/sbin/md5/md5.1 b/sbin/md5/md5.1 index 94cdf84..6fa0393 100644 --- a/sbin/md5/md5.1 +++ b/sbin/md5/md5.1 @@ -1,9 +1,9 @@ .\" $FreeBSD$ -.Dd October 17, 2015 +.Dd April 22, 2016 .Dt MD5 1 .Os .Sh NAME -.Nm md5 , sha1 , sha256 , sha384 , sha512, rmd160 +.Nm md5 , sha1 , sha256 , sha384 , sha512, sha512t256, rmd160 .Nd calculate a message-digest fingerprint (checksum) for a file .Sh SYNOPSIS .Nm md5 @@ -31,6 +31,11 @@ .Op Fl c Ar string .Op Fl s Ar string .Op Ar +.Nm sha512t256 +.Op Fl pqrtx +.Op Fl c Ar string +.Op Fl s Ar string +.Op Ar .Nm rmd160 .Op Fl pqrtx .Op Fl c Ar string @@ -38,7 +43,7 @@ .Op Ar .Sh DESCRIPTION The -.Nm md5 , sha1 , sha256 , sha384 , sha512 +.Nm md5 , sha1 , sha256 , sha384 , sha512, sha512t256 and .Nm rmd160 utilities take as input a message of arbitrary length and produce as @@ -78,8 +83,17 @@ found which is faster than a brute-force search, placing the security of .Tn SHA-1 in doubt. .Pp -It is recommended that all new applications use +.Tn SHA-512t256 +is a version of +.Tn SHA-512 +truncated to only 256 bits. +On 64-bit hardware, this algorithm is approximately 50% faster than .Tn SHA-256 +but with the same level of security. +The hashes are not interchangeable. +.Pp +It is recommended that all new applications use +.Tn SHA-512 instead of one of the other hash functions. .Pp The following options may be used in any combination and must @@ -114,7 +128,7 @@ Run a built-in test script. .El .Sh EXIT STATUS The -.Nm md5 , sha1 , sha256 , sha512 +.Nm md5 , sha1 , sha256 , sha512, sha512t256 and .Nm rmd160 utilities exit 0 on success, |
