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| 1 | +#! /usr/bin/env bash |
| 2 | + |
| 3 | +die() { printf "$@" >&2; exit 1; } |
| 4 | +if [[ $# != 1 ]]; then die 'Usage: %s <zipfile>\n' "$0"; fi |
| 5 | + |
| 6 | +tmp=$(mktemp -t -d) |
| 7 | +trap 'e=$?; rm -rf ${tmp}; exit $e' EXIT HUP INT TERM |
| 8 | +unzip -qq -j -d "$tmp" "$1" || die 'Error unzipping %s\n' "$1" |
| 9 | + |
| 10 | +ptext="${tmp}/plaintext" |
| 11 | +printf "Attack at dawn\n" > "$ptext" |
| 12 | +sigfile="${tmp}/sig.dat" |
| 13 | + |
| 14 | +mldsa_oids=(2.16.840.1.101.3.4.3.{17,18,19}) |
| 15 | +mlkem_oids=(2.16.840.1.101.3.4.4.{1,2,3}) |
| 16 | +slh2s_oids=(2.16.840.1.101.3.4.3.{20,22,24}) |
| 17 | +slh2f_oids=(2.16.840.1.101.3.4.3.{21,23,25}) |
| 18 | +slh3s_oids=(2.16.840.1.101.3.4.3.{26,28,30}) |
| 19 | +slh3f_oids=(2.16.840.1.101.3.4.3.{27,29,31}) |
| 20 | +while [[ ${#mldsa_oids[@]} -gt 0 ]] |
| 21 | +do |
| 22 | + # |
| 23 | + # ML-DSA |
| 24 | + # |
| 25 | + ( |
| 26 | + set -e |
| 27 | + set -o pipefail |
| 28 | + shopt -s nullglob |
| 29 | + pubs=() |
| 30 | + for form in seed expandedkey both ta |
| 31 | + do |
| 32 | + pubout="$tmp/${mldsa_oids[0]}_${form}_pub.der" |
| 33 | + /bin/rm -f "$pubout" |
| 34 | + count=0 |
| 35 | + for obj in "$tmp"/*-"${mldsa_oids[0]}_${form}"*.der |
| 36 | + do |
| 37 | + if [[ $count > 0 ]]; then |
| 38 | + die 'Too many inputs match %s for %s\n' |
| 39 | + "$form" "${mldsa_oids[0]}" |
| 40 | + fi |
| 41 | + case $form in |
| 42 | + ta) openssl x509 -in "$obj" -pubkey -noout | |
| 43 | + openssl pkey -pubin -pubout -outform DER -out "$pubout" |
| 44 | + openssl verify -verify_depth 0 -trusted "$obj" "$obj" >/dev/null |
| 45 | + ;; |
| 46 | + *) openssl pkey -in "$obj" -pubout -outform DER -out "$pubout" |
| 47 | + openssl pkeyutl -sign -rawin -inkey "$obj" -in "$ptext" -out "$sigfile" |
| 48 | + openssl pkeyutl -verify -rawin -in "$ptext" -pubin -inkey "$pubout" \ |
| 49 | + -sigfile "$sigfile" >/dev/null || |
| 50 | + die 'Signature verification failed for %s %s\n' \ |
| 51 | + "$form" "${mldsa_oids[0]}" |
| 52 | + ;; |
| 53 | + esac |
| 54 | + dgst=$(openssl dgst -sha256 -binary < "$pubout" | xxd -p -c32) |
| 55 | + pubs=("${pubs[@]}" "$dgst") |
| 56 | + count=$((count + 1)) |
| 57 | + done |
| 58 | + if [[ $count -ne 1 ]]; then |
| 59 | + die 'Missing key form %s for %s\n' \ |
| 60 | + "$form" "${mldsa_oids[0]}" |
| 61 | + fi |
| 62 | + done |
| 63 | + uniq=$(for dgst in "${pubs[@]}"; do printf "%s\n" "$dgst"; done | sort -u | wc -l) |
| 64 | + if [[ $uniq -ne 1 ]]; then |
| 65 | + die 'Multiple distinct pubkeys for %s\n' \ |
| 66 | + "${mldsa_oids[0]}" |
| 67 | + fi |
| 68 | + ) |
| 69 | + if [[ $? -ne 0 ]]; then ok=N; else ok=Y; fi |
| 70 | + printf "%s,%s\n" "${mldsa_oids[0]}" "$ok" |
| 71 | + |
| 72 | + # |
| 73 | + # SLH-DSA |
| 74 | + # |
| 75 | + for oid in \ |
| 76 | + "${slh2f_oids[0]}" "${slh2s_oids[0]}" \ |
| 77 | + "${slh3f_oids[0]}" "${slh3s_oids[0]}" |
| 78 | + do |
| 79 | + ( |
| 80 | + set -e |
| 81 | + set -o pipefail |
| 82 | + shopt -s nullglob |
| 83 | + count=0 |
| 84 | + for obj in "$tmp"/*-"${oid}_ta.der" |
| 85 | + do |
| 86 | + if [[ $count > 0 ]]; then |
| 87 | + die 'Too many inputs for %s\n' "${oid}" |
| 88 | + fi |
| 89 | + openssl verify -verify_depth 0 -trusted "$obj" "$obj" >/dev/null |
| 90 | + count=$((count + 1)) |
| 91 | + done |
| 92 | + if [[ $count -ne 1 ]]; then |
| 93 | + die 'Missing TA for %s\n' "${oid}" |
| 94 | + fi |
| 95 | + ) |
| 96 | + if [[ $? -ne 0 ]]; then ok=N; else ok=Y; fi |
| 97 | + printf "%s,%s\n" "${oid}" "$ok" |
| 98 | + done |
| 99 | + |
| 100 | + # |
| 101 | + # ML-KEM |
| 102 | + # |
| 103 | + ( |
| 104 | + set -e |
| 105 | + set -o pipefail |
| 106 | + shopt -s nullglob |
| 107 | + count=0; for ta in "$tmp"/*-"${mldsa_oids[0]}_ta.der" |
| 108 | + do |
| 109 | + if [[ $count > 0 ]]; then |
| 110 | + die 'Too many TA files for %s\n' \ |
| 111 | + "${mldsa_oids[0]}" |
| 112 | + fi |
| 113 | + count=$((count + 1)) |
| 114 | + done |
| 115 | + if [[ $count -ne 1 ]]; then |
| 116 | + die 'No TA file for %s\n' \ |
| 117 | + "${mldsa_oids[0]}" |
| 118 | + fi |
| 119 | + count=0; for ct in "$tmp"/*-"${mlkem_oids[0]}_ciphertext.bin" |
| 120 | + do |
| 121 | + if [[ $count > 0 ]]; then |
| 122 | + die 'Too many ciphertext files for %s\n' \ |
| 123 | + "${mlkem_oids[0]}" |
| 124 | + fi |
| 125 | + count=$((count + 1)) |
| 126 | + done |
| 127 | + if [[ $count -ne 1 ]]; then |
| 128 | + die 'No ciphertext file for %s\n' \ |
| 129 | + "${mlkem_oids[0]}" |
| 130 | + fi |
| 131 | + count=0; for ss in "$tmp"/*-"${mlkem_oids[0]}_ss.bin" |
| 132 | + do |
| 133 | + if [[ $count > 0 ]]; then |
| 134 | + die 'Too many shared secret files for %s\n' \ |
| 135 | + "${mlkem_oids[0]}" |
| 136 | + fi |
| 137 | + count=$((count + 1)) |
| 138 | + done |
| 139 | + if [[ $count -ne 1 ]]; then |
| 140 | + die 'No shared secret file for %s\n' \ |
| 141 | + "${mlkem_oids[0]}" |
| 142 | + fi |
| 143 | + pubs=() |
| 144 | + for form in seed expandedkey both ee |
| 145 | + do |
| 146 | + pubout="$tmp/${mlkem_oids[0]}_${form}_pub.der" |
| 147 | + /bin/rm -f "$pubout" |
| 148 | + count=0; for obj in "$tmp"/*-"${mlkem_oids[0]}_${form}"*.der |
| 149 | + do |
| 150 | + if [[ $count > 0 ]]; then |
| 151 | + die 'Too many inputs match %s for %s\n' \ |
| 152 | + "$form" "${mlkem_oids[0]}" |
| 153 | + fi |
| 154 | + case $form in |
| 155 | + ee) openssl x509 -in "$obj" -pubkey -noout | |
| 156 | + openssl pkey -pubin -pubout -outform DER -out "$pubout" |
| 157 | + openssl verify -verify_depth 0 -trusted "$ta" "$obj" >/dev/null |
| 158 | + ;; |
| 159 | + *) openssl pkey -in "$obj" -pubout -outform DER -out "$pubout" |
| 160 | + cmp -s "$ss" <( |
| 161 | + openssl pkeyutl -decap -inkey "$obj" -in "$ct" -secret /dev/stdout) || |
| 162 | + die 'Shared secret mismatch for %s of %s\n' \ |
| 163 | + "$form" "${mlkem_names[0]}" |
| 164 | + ;; |
| 165 | + esac |
| 166 | + dgst=$(openssl dgst -sha256 -binary < "$pubout" | xxd -p -c32) |
| 167 | + pubs=("${pubs[@]}" "$dgst") |
| 168 | + count=$((count + 1)) |
| 169 | + done |
| 170 | + if [[ $count -ne 1 ]]; then |
| 171 | + die 'Missing key form %s for %s\n' \ |
| 172 | + "$form" "${mlkem_oids[0]}" |
| 173 | + fi |
| 174 | + done |
| 175 | + uniq=$(for dgst in "${pubs[@]}"; do printf "%s\n" "$dgst"; done | sort -u | wc -l) |
| 176 | + if [[ $uniq -ne 1 ]]; then |
| 177 | + die 'Multiple distinct pubkeys for %s\n' \ |
| 178 | + "${mlkem_oids[0]}" |
| 179 | + fi |
| 180 | + ) |
| 181 | + if [[ $? -ne 0 ]]; then ok=N; else ok=Y; fi |
| 182 | + printf "%s,%s\n" "${mlkem_oids[0]}" "$ok" |
| 183 | + |
| 184 | + unset "mldsa_oids[0]" |
| 185 | + unset "mlkem_oids[0]" |
| 186 | + unset "slh2f_oids[0]" |
| 187 | + unset "slh2s_oids[0]" |
| 188 | + unset "slh3f_oids[0]" |
| 189 | + unset "slh3s_oids[0]" |
| 190 | + mldsa_oids=( "${mldsa_oids[@]}") |
| 191 | + mlkem_oids=( "${mlkem_oids[@]}") |
| 192 | + slh2f_oids=( "${slh2f_oids[@]}") |
| 193 | + slh2s_oids=( "${slh2s_oids[@]}") |
| 194 | + slh3f_oids=( "${slh3f_oids[@]}") |
| 195 | + slh3s_oids=( "${slh3s_oids[@]}") |
| 196 | +done |
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