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Add GPG recipient support when generating a new tomb key
This commit is contained in:
Alexandre Pujol
parent
db7109da4a
commit
902860fd9f
123
tomb
123
tomb
@ -1139,72 +1139,79 @@ gen_key() {
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tombpass=""
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tombpasstmp=""
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if [ "$1" = "" ]; then
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while true; do
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# 3 tries to write two times a matching password
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tombpass=`ask_password "Type the new password to secure your key"`
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if [[ $? != 0 ]]; then
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_failure "User aborted."
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fi
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if [ -z $tombpass ]; then
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_failure "You set empty password, which is not possible."
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fi
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tombpasstmp=$tombpass
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tombpass=`ask_password "Type the new password to secure your key (again)"`
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if [[ $? != 0 ]]; then
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_failure "User aborted."
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fi
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if [ "$tombpasstmp" = "$tombpass" ]; then
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break;
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fi
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unset tombpasstmp
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unset tombpass
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done
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else
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tombpass="$1"
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_verbose "gen_key takes tombpass from CLI argument: ::1 tomb pass::" $tombpass
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fi
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header=""
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[[ $KDF == 1 ]] && {
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{ option_is_set --kdf } && {
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# KDF is a new key strenghtening technique against brute forcing
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# see: https://github.com/dyne/Tomb/issues/82
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itertime="`option_value --kdf`"
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# removing support of floating points because they can't be type checked well
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if [[ "$itertime" != <-> ]]; then
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unset tombpass
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{ ! option_is_set -r } && {
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if [ "$1" = "" ]; then
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while true; do
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# 3 tries to write two times a matching password
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tombpass=`ask_password "Type the new password to secure your key"`
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if [[ $? != 0 ]]; then
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_failure "User aborted."
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fi
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if [ -z $tombpass ]; then
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_failure "You set empty password, which is not possible."
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fi
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tombpasstmp=$tombpass
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tombpass=`ask_password "Type the new password to secure your key (again)"`
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if [[ $? != 0 ]]; then
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_failure "User aborted."
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fi
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if [ "$tombpasstmp" = "$tombpass" ]; then
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break;
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fi
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unset tombpasstmp
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_warning "Wrong argument for --kdf: must be an integer number (iteration seconds)."
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_failure "Depending on the speed of machines using this tomb, use 1 to 10, or more"
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return 1
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fi
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# --kdf takes one parameter: iter time (on present machine) in seconds
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local -i microseconds
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microseconds=$(( itertime * 1000000 ))
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_success "Using KDF, iteration time: ::1 microseconds::" $microseconds
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_message "generating salt"
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pbkdf2_salt=`tomb-kdb-pbkdf2-gensalt`
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_message "calculating iterations"
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pbkdf2_iter=`tomb-kdb-pbkdf2-getiter $microseconds`
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_message "encoding the password"
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# We use a length of 64bytes = 512bits (more than needed!?)
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tombpass=`tomb-kdb-pbkdf2 $pbkdf2_salt $pbkdf2_iter 64 <<<"${tombpass}"`
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unset tombpass
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done
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else
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tombpass="$1"
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_verbose "gen_key takes tombpass from CLI argument: ::1 tomb pass::" $tombpass
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fi
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header="_KDF_pbkdf2sha1_${pbkdf2_salt}_${pbkdf2_iter}_64\n"
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header=""
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[[ $KDF == 1 ]] && {
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{ option_is_set --kdf } && {
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# KDF is a new key strenghtening technique against brute forcing
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# see: https://github.com/dyne/Tomb/issues/82
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itertime="`option_value --kdf`"
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# removing support of floating points because they can't be type checked well
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if [[ "$itertime" != <-> ]]; then
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unset tombpass
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unset tombpasstmp
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_warning "Wrong argument for --kdf: must be an integer number (iteration seconds)."
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_failure "Depending on the speed of machines using this tomb, use 1 to 10, or more"
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return 1
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fi
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# --kdf takes one parameter: iter time (on present machine) in seconds
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local -i microseconds
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microseconds=$(( itertime * 1000000 ))
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_success "Using KDF, iteration time: ::1 microseconds::" $microseconds
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_message "generating salt"
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pbkdf2_salt=`tomb-kdb-pbkdf2-gensalt`
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_message "calculating iterations"
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pbkdf2_iter=`tomb-kdb-pbkdf2-getiter $microseconds`
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_message "encoding the password"
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# We use a length of 64bytes = 512bits (more than needed!?)
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tombpass=`tomb-kdb-pbkdf2 $pbkdf2_salt $pbkdf2_iter 64 <<<"${tombpass}"`
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header="_KDF_pbkdf2sha1_${pbkdf2_salt}_${pbkdf2_iter}_64\n"
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}
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}
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print $header
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}
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print $header
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_tmp_create
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local tmpres=$TOMBTMP
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print -n - "${tombpass}\n$TOMBSECRET" \
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| gpg --openpgp --force-mdc --cipher-algo ${algo} --batch \
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--no-options --no-tty --passphrase-fd 0 \
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--status-fd 2 -o - -c -a 2> $tmpres
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if option_is_set -r; then
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print -n - "${tombpass}\n$TOMBSECRET" \
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| gpg --openpgp --force-mdc --cipher-algo ${algo} --batch \
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--no-options --no-tty --recipient `option_value -r` \
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--status-fd 2 -o - --encrypt --armor 2> $tmpres
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else
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print -n - "${tombpass}\n$TOMBSECRET" \
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| gpg --openpgp --force-mdc --cipher-algo ${algo} --batch \
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--no-options --no-tty --passphrase-fd 0 \
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--status-fd 2 -o - --symmetric --armor 2> $tmpres
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fi
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# check result of gpg operation
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for i in ${(f)"$(cat $tmpres)"}; do
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_verbose "$i"
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