crypto-hash-sha256.1

.TH crypto-hash-sha256 1 "October 2010" "nacltools" "NaCl: Networking and Cryptography library"
.SH NAME
.PP
\fBcrypto-hash-sha256\fP \- produce a SHA256 hash of the input 
.SH SYNOPSIS
.PP
.B crypto-hash-sha256 [-b]
.SH DESCRIPTION
.PP
Reads a complete stream of data from standard input, computes its SHA256 checksum, and prints out the result in hexidecimal.
.PP
\fB-b\fP 	
output in binary mode

.SH EXIT CODE
.PP
Normally, \fBcrypto-hash-sha256\fP exits with \fB0\fP. 
.PP
If invalid arguments are given, \fBcrypto-hash-sha256\fP exits with \fB100\fP.
.PP
If an error occurs, \fBcrypto-hash-sha256\fP exits with \fB111\fP.
.SH CRYPTOGRAPHY
.PP
This program is a simply a wrapper around the crypto_hash_sha256 function provided by \fBNaCl\fP, the Networking and Cryptography library by Daniel J. Bernstein and Tanja Lange. See the official website \fIhttp://nacl.cr.yp.to/\fP for details.
.SH AUTHOR
Jay Sullivan <jay@petio.org>
.SH "SEE ALSO"
crypto-hash-sha512(1)