# -*- tcl -*-
# Tcl Benchmark File
#
# This file contains a number of benchmarks for the 'des' module.
# This allow developers to monitor/gauge/track package performance.
#
# (c) 2005 Andreas Kupries <andreas_kupries@users.sourceforge.net>

# We need at least version 8.2 for the package and thus the
# benchmarks.

if {![package vsatisfies [package provide Tcl] 8.2]} {
    return
}

# ### ### ### ######### ######### ######### ###########################
## Setting up the environment ...

package forget tclDES
catch {namespace delete ::des}
catch {source [file join [file dirname [info script]] tcldes.tcl]}

package forget des
catch {namespace delete ::DES}
source [file join [file dirname [info script]] des.tcl]

set i [binary format H* 0000000000000000]
set p [binary format H* 0123456789ABCDEF0123456789ABCDEF]]

set k [binary format H* FEDCBA9876543210]
set c [binary format H* ED39D950FA74BCC4ED39D950FA74BCC4]

# ### ### ### ######### ######### ######### ###########################
## Benchmarks.

bench -desc "DES 1des ECB encryption" -body {
    DES::des -mode ecb -dir enc -key $k -iv $i $p
}

bench -desc "DES 1des ECB decryption" -body {
    DES::des -mode ecb -dir dec -key $k -iv $i $c
}

bench -desc "DES 1des ECB encryption core" -pre {
    set key [DES::Init ecb $k $i]
} -body {
    DES::Encrypt $key $p
} -post {
    DES::Final $key
}

bench -desc "DES 1des ECB decryption core" -pre {
    set key [DES::Init ecb $k $i]
} -body {
    DES::Decrypt $key $c
} -post {
    DES::Final $key
}

bench -desc "DES 1des ECB keyschedule" -body {
    DES::Final [DES::Init ecb $k $i]
}

bench -desc "DES 1des CBC keyschedule" -body {
    DES::Final [DES::Init cbc $k $i]
}

if {[llength [package provide tclDES]] != 0} {
    set k [binary format H* FEDCBA9876543210FEDCBA9876543210FEDCBA9876543210]

    bench -desc "DES 3des ECB encryption" -body {
	DES::des -mode ecb -dir enc -key $k -iv $i $p
    }

    bench -desc "DES 3des ECB decryption" -body {
	DES::des -mode ecb -dir dec -key $k -iv $i $c
    }

    bench -desc "DES 3des ECB encryption core" -pre {
	set key [DES::Init ecb $k $i]
    } -body {
	DES::Encrypt $key $p
    } -post {
	DES::Final $key
    }

    bench -desc "DES 3des ECB decryption core" -pre {
	set key [DES::Init ecb $k $i]
    } -body {
	DES::Decrypt $key $c
    } -post {
	DES::Final $key
    }

    bench -desc "DES 3des ECB keyschedule" -body {
	DES::Final [DES::Init ecb $k $i]
    }

    bench -desc "DES 3des CBC keyschedule" -body {
	DES::Final [DES::Init cbc $k $i]
    }
}

# ### ### ### ######### ######### ######### ###########################
## Complete
