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Full Discussion: sha1 question
Top Forums Shell Programming and Scripting sha1 question Post 302501915 by radoulov on Saturday 5th of March 2011 05:05:29 PM
Old 03-05-2011
The latest Ubuntu uses bash4, so you could use something like this:

Code:
$ user=MyUser pass=mypass sessionid=mysessionid
$ _sha1=$(sha1sum <<< "$(sha1sum <<< "${user,,}$pass")$sessionid")
$ printf '%s\n' ${_sha1% *}
91aacc49855185f87659ffd87b8b4944c4822412

 

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LEARN ABOUT SUNOS

digest

digest(1)							   User Commands							 digest(1)

NAME

       digest - calculate a message digest

SYNOPSIS

       /usr/bin/digest -l | [-v] -a algorithm [file...]

DESCRIPTION

       The  digest  utility  calculates  the  message digest of the given file(s) or stdin using the algorithm specified. If more than one file is
       given, each line of output is the digest of a single file.

OPTIONS

       The following options are supported:

       -a algorithm    Specifies the name of the algorithm to use during the encryption or decryption process. See USAGE, Algorithms, for details.

       -l	       Displays list of algorithms available on the system. This list can change depending on the  configuration  of  the  crypto-
		       graphic framework.

       -v	       Verbose output. Includes the algorithm name and filename in the output.

USAGE

   Algorithms
       These algorithms are provided by the Cryptographic Framework. Each algorithm supported by the command is an alias of the PKCS #11 mechanism
       for easier access. For example, sha1 is an alias to CKM_SHA_1.

       These aliases are used with the -a option and are case-sensitive.

EXAMPLES

       Example 1: Simulating output of the common md5sum program

       example$ digest -v -a md5 /usr/bin/vi
       md5 (/usr/bin/vi) = e4e3588c5212903847c66d36b1a828a5

       Example 2: Digesting a file

       To generate the sha1 digest of the file /etc/motd:

       example$ digest -a sha1 /etc/motd
       9498a4f5303d056ad3ecae826b59f41448d63790

       Example 3: Generating a directory manifest with sha1

       example$ digest -v -a sha1 /usr/lib/inet/*
       sha1 (/usr/lib/inet/certdb) = f6d43e6e395d50db24d34e4af4828598c8918b16
       sha1 (/usr/lib/inet/certlocal) = 7f74ba4a019b809c7023212b4bda10d9485e071d
       sha1 (/usr/lib/inet/certrldb) = 1f845d30b8d02066647de04311e74549049852ed
       sha1 (/usr/lib/inet/dhcp) = e3db5e4ff40a69d13f2497254526c2015d2c37b3
       sha1 (/usr/lib/inet/dsvclockd) = b61aad7ed6a0f82145c3c26aedc613ab4a1f032e
       sha1 (/usr/lib/inet/in.dhcpd) = 382210180c826fbb2e747236c489062bac8cc30b
       sha1 (/usr/lib/inet/in.iked) = be6061fad725d37256e773dc85f8bd5248649463
       sha1 (/usr/lib/inet/in.mpathd) = 5bd6bf0340fd5c4cc0c53f2df158302a0e85f9d0
       sha1 (/usr/lib/inet/in.ndpd) = fdb768aebe7e5eb4465e1c1bb5e679b496f5c5c6
       sha1 (/usr/lib/inet/in.ripngd) = 4f56a0df2d4a252f581a73c2e84143b920d0b66b
       sha1 (/usr/lib/inet/mipagent) = 3c45e95231959d738625b9fcb84735148393ce47
       sha1 (/usr/lib/inet/ncaconfd) = 7219542b5585a8d1104d7ce4a2ced07d8a260ea3
       sha1 (/usr/lib/inet/ppp) = c96ee458549871a6ffdf2674a888b01d0c9e9740
       sha1 (/usr/lib/inet/pppoec) = 5f022498d79dacacd947cddadc64f171822e3dee
       sha1 (/usr/lib/inet/pppoed) = 252bd2f0863dbc1b05fffae72821a2a95609b8ad
       sha1 (/usr/lib/inet/slpd) = dfa24cc0f0b05f790546d4f0948a9094f7089027
       sha1 (/usr/lib/inet/wanboot) = a8b8c51c389c774d0be2ae43cb85d1b1439484ae
       sha1 (/usr/lib/inet/xntpd) = 5b4aff102372cea801e7d08acde9655fec81f07c

       Example 4: Displaying list of available algorithms to digest

       example$ digest -l
       sha1
       md5

EXIT STATUS

       The following exit values are returned:

       0	Successful completion.

       >0	An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       encrypt(1), mac(1), cryptoadm(1M), libpkcs11(3LIB), attributes(5), pkcs11_softtoken(5)

SunOS 5.10							    12 Jan 2004 							 digest(1)
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