sha256.3 (6cec9cad762b6476313fb1f8e931a1647822db6b) sha256.3 (b468a9ff1d3a70c6d14cf2b49574cbbcc60ff997)
1.\"
2.\" ----------------------------------------------------------------------------
3.\" "THE BEER-WARE LICENSE" (Revision 42):
4.\" <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
5.\" can do whatever you want with this stuff. If we meet some day, and you think
6.\" this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
7.\" ----------------------------------------------------------------------------
8.\"
9.\" From: Id: mdX.3,v 1.14 1999/02/11 20:31:49 wollman Exp
10.\" $FreeBSD$
11.\"
1.\"
2.\" ----------------------------------------------------------------------------
3.\" "THE BEER-WARE LICENSE" (Revision 42):
4.\" <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
5.\" can do whatever you want with this stuff. If we meet some day, and you think
6.\" this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
7.\" ----------------------------------------------------------------------------
8.\"
9.\" From: Id: mdX.3,v 1.14 1999/02/11 20:31:49 wollman Exp
10.\" $FreeBSD$
11.\"
12.Dd March 28, 2014
12.Dd April 26, 2016
13.Dt SHA256 3
14.Os
15.Sh NAME
16.Nm SHA256_Init ,
17.Nm SHA256_Update ,
18.Nm SHA256_Final ,
19.Nm SHA256_End ,
20.Nm SHA256_File ,

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118after use.
119If the
120.Fa buf
121argument is non-null it must point to at least 65 characters of buffer space.
122.Sh SEE ALSO
123.Xr md4 3 ,
124.Xr md5 3 ,
125.Xr ripemd 3 ,
13.Dt SHA256 3
14.Os
15.Sh NAME
16.Nm SHA256_Init ,
17.Nm SHA256_Update ,
18.Nm SHA256_Final ,
19.Nm SHA256_End ,
20.Nm SHA256_File ,

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118after use.
119If the
120.Fa buf
121argument is non-null it must point to at least 65 characters of buffer space.
122.Sh SEE ALSO
123.Xr md4 3 ,
124.Xr md5 3 ,
125.Xr ripemd 3 ,
126.Xr sha 3
126.Xr sha 3 ,
127.Xr sha256 3 ,
128.Xr sha512 3 ,
129.Xr skein 3
127.Sh HISTORY
128These functions appeared in
129.Fx 6.0 .
130.Sh AUTHORS
131The core hash routines were implemented by Colin Percival based on
132the published
133.Tn FIPS 180-2
134standard.
135.Sh BUGS
136No method is known to exist which finds two files having the same hash value,
137nor to find a file with a specific hash value.
138There is on the other hand no guarantee that such a method does not exist.
130.Sh HISTORY
131These functions appeared in
132.Fx 6.0 .
133.Sh AUTHORS
134The core hash routines were implemented by Colin Percival based on
135the published
136.Tn FIPS 180-2
137standard.
138.Sh BUGS
139No method is known to exist which finds two files having the same hash value,
140nor to find a file with a specific hash value.
141There is on the other hand no guarantee that such a method does not exist.