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Merge pull request #326 from dcooper16/run_allciphers_speedup 

run_allciphers() speedup
This commit is contained in:
Dirk Wetter 2016-03-28 18:41:03 +02:00
parent c684ba7d9c eac2df6d81
commit c4d84451f1
1 changed files with 86 additions and 35 deletions
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121
testssl.sh
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@ -1570,51 +1570,102 @@ test_just_one(){
# test for all ciphers locally configured (w/o distinguishing whether they are good or bad
run_allciphers(){
local tmpfile
local nr_ciphers
local -i sclient_success=0
local hexcode n ciph sslvers kx auth enc mac export
local -i nr_ciphers
local n sslvers auth mac export
local -a hexcode ciph kx enc export2
local -i i j parent child end_of_bundle round_num bundle_size num_bundles mod_check
local -a ciphers_found
local dhlen
local available
local ciphers_to_test
# get a list of all the cipher suites to test (only need the hexcode, ciph, kx, enc, and export values
nr_ciphers=0
$OPENSSL ciphers -V 'ALL:COMPLEMENTOFALL:@STRENGTH' 2>>$ERRFILE | (while read hexcode[nr_ciphers] n ciph[nr_ciphers] sslvers kx[nr_ciphers] auth enc[nr_ciphers] mac export2[nr_ciphers]; do
nr_ciphers=$nr_ciphers+1
done
nr_ciphers=$(count_ciphers "$($OPENSSL ciphers 'ALL:COMPLEMENTOFALL:@STRENGTH' 2>$ERRFILE)")
outln
pr_headlineln " Testing all $nr_ciphers locally available ciphers against the server, ordered by encryption strength "
"$HAS_DH_BITS" || pr_warningln " (Your $OPENSSL cannot show DH/ECDH bits)"
outln
neat_header
$OPENSSL ciphers -V 'ALL:COMPLEMENTOFALL:@STRENGTH' 2>>$ERRFILE | while read hexcode n ciph sslvers kx auth enc mac export; do
# FIXME: e.g. OpenSSL < 1.0 doesn't understand "-V" --> we can't do anything about it!
$OPENSSL s_client -cipher $ciph $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI >$TMPFILE 2>$ERRFILE </dev/null
sclient_connect_successful "$?" "$TMPFILE"
sclient_success=$?
if [[ "$sclient_success" -ne 0 ]] && ! "$SHOW_EACH_C"; then
continue # no successful connect AND not verbose displaying each cipher
fi
normalize_ciphercode "$hexcode"
if [[ $kx == "Kx=ECDH" ]] || [[ $kx == "Kx=DH" ]] || [[ $kx == "Kx=EDH" ]]; then
dhlen=$(read_dhbits_from_file "$TMPFILE" quiet)
kx="$kx $dhlen"
fi
neat_list "$HEXC" "$ciph" "$kx" "$enc"
available=""
if "$SHOW_EACH_C"; then
if [[ "$sclient_success" -eq 0 ]]; then
available="available"
pr_cyan " available"
else
out " not a/v"
available="not a/v"
fi
fi
if "$SHOW_SIGALGO"; then
$OPENSSL x509 -noout -text -in $TMPFILE | awk -F':' '/Signature Algorithm/ { print $2 }' | head -1
else
outln
fi
fileout "cipher_$HEXC" "INFO" "$(neat_list "$HEXC" "$ciph" "$kx" "$enc") $available"
tmpfile_handle $FUNCNAME.txt
# Split ciphers into bundles of size 4**n, starting with an "n" that
# splits the ciphers into 4 bundles, and then reduing "n" by one in each
# round. Only test a bundle of 4**n ciphers against the server if it was
# part of a bundle of 4**(n+1) ciphers that included a cipher supported by
# the server. Continue until n=0.
# Determine bundle size that will result in their being exactly four bundles.
for((bundle_size=1;bundle_size<nr_ciphers;bundle_size*=4)); do
:
done
# set ciphers_found[1] so that all bundles will be tested in round 0.
ciphers_found[1]=true
round_num=0
for ((bundle_size/=4;bundle_size>=1;bundle_size/=4)); do
# Note that since the number of ciphers isn't a power of 4, the number
# of bundles may be may be less than 4**(round_num+1), and the final
# bundle may have fewer than bundle_size ciphers.
num_bundles=$nr_ciphers/$bundle_size
mod_check=$nr_ciphers%$bundle_size
[[ $mod_check -ne 0 ]] && num_bundles=$num_bundles+1
for ((i=0;i<num_bundles;i++)); do
# parent=index of bundle from previous round that includes this bundle of ciphers
parent=4**$round_num+$i/4
# child=index for this bundle of ciphers
child=4*4**$round_num+$i
if ${ciphers_found[parent]}; then
ciphers_to_test=""
end_of_bundle=$i*$bundle_size+$bundle_size
[[ $end_of_bundle -gt $nr_ciphers ]] && end_of_bundle=$nr_ciphers
for ((j=i*bundle_size;j<end_of_bundle;j++)); do
ciphers_to_test="${ciphers_to_test}:${ciph[j]}"
done
ciphers_found[child]=false
$OPENSSL s_client -cipher "${ciphers_to_test:1}" $STARTTLS $BUGS -connect $NODEIP:$PORT $PROXY $SNI >$TMPFILE 2>$ERRFILE </dev/null
sclient_connect_successful "$?" "$TMPFILE"
[[ "$?" -eq 0 ]] && ciphers_found[child]=true
else
# No need to test, since test of parent demonstrated none of these ciphers work.
ciphers_found[child]=false
fi
# If this is a "leaf" of the test tree, then print out the results.
if [[ $bundle_size -eq 1 ]] && ( ${ciphers_found[child]} || "$SHOW_EACH_C"); then
export=${export2[i]}
normalize_ciphercode "${hexcode[i]}"
if [[ ${kx[i]} == "Kx=ECDH" ]] || [[ ${kx[i]} == "Kx=DH" ]] || [[ ${kx[i]} == "Kx=EDH" ]]; then
if ${ciphers_found[child]}; then
dhlen=$(read_dhbits_from_file "$TMPFILE" quiet)
kx[i]="${kx[i]} $dhlen"
fi
fi
neat_list "$HEXC" "${ciph[i]}" "${kx[i]}" "${enc[i]}"
available=""
if "$SHOW_EACH_C"; then
if ${ciphers_found[child]}; then
available="available"
pr_cyan " available"
else
out " not a/v"
available="not a/v"
fi
fi
if "$SHOW_SIGALGO" && ${ciphers_found[child]}; then
$OPENSSL x509 -noout -text -in $TMPFILE | awk -F':' '/Signature Algorithm/ { print $2 }' | head -1
else
outln
fi
fileout "cipher_$HEXC" "INFO" "$(neat_list "$HEXC" "${ciph[i]}" "${kx[i]}" "${enc[i]}") $available"
tmpfile_handle $FUNCNAME.txt
fi
done
round_num=round_num+1
done)
outln
return 0
}