mirror of
https://github.com/mozilla/cipherscan.git
synced 2024-11-25 07:23:41 +01:00
105 lines
3.0 KiB
Bash
Executable File
105 lines
3.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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if [[ ${1,,} == "-h" ]] || [[ ${1,,} == "-help" ]] || \
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[[ ${1,,} == "-help" ]] || [[ ${#} -lt 1 ]]; then
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echo "Usage: ${0} certs_dir [target_dir]"
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echo "Create an OpenSSL -CApath compatible dir with intermediate certificates"
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echo "using a set of potentially untrusted intermediate CA certificates"
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echo "and trusted, root CAs"
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echo
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echo " certs_dir - Directory containing untrusted certificates to test"
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echo " one certificate per file, in PEM format"
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echo " target_dir - where to create the -CApath directory,"
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echo " \`ca_files' by default"
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echo
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echo "Script expects make_ca_trusted.sh in same directory as it is"
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if [[ ${#} -lt 1 ]]; then
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exit 1
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else
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exit 0
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fi
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fi
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UNTRUSTED="$1"
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DIR="${2:-ca_files}"
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# search for make_ca_trusted.sh
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MAKE_CA_TRUSTED="$(dirname $0)/make_ca_trusted.sh"
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if [ ! -x $MAKE_CA_TRUSTED ]; then
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echo "$MAKE_CA_TRUSTED not executable or missing" >&2
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fi
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# search for openssl
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for f in "$(dirname $0)/openssl" \
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"$(dirname $0)/../openssl" \
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"$(which openssl 2>/dev/null)"; do
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if [ -x "$f" ]; then
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OPENSSL="$f"
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break
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fi
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done
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if [ ! -x "$OPENSSL" ]; then
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echo "openssl not found!" >&2
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return 1
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fi
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# create a directory with initial trust anchors
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"${MAKE_CA_TRUSTED}" "${DIR}"
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pushd "${DIR}" >/dev/null
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# find CA certificates in untrusted certs directory
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unset CA_FILES
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declare -a CA_FILES
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CA_FILES=()
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for file in "${UNTRUSTED}"/*; do
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if ${OPENSSL} x509 -in "$file" -noout -text 2>/dev/null | \
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grep -q 'CA:TRUE'; then
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CA_FILES+=("$file")
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fi
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done
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echo "CA's found: ${#CA_FILES[@]}"
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files_added=0
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# check which CA files are actually trusted, add them to the directory
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cont="True"
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while [[ $cont == "True" ]]; do
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cont="False"
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for file_id in "${!CA_FILES[@]}"; do
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file="${CA_FILES[$file_id]}"
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# making an "untrusted" file and using it to verify certificates
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# ends up taking much more time (6m vs 2m for 2500 certs)
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if ${OPENSSL} verify -CApath . -trusted_first\
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"$file" 2>/dev/null | grep -q ': OK$'; then
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unset CA_FILES[$file_id]
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c_sha256hash=($(${OPENSSL} x509 -in "$file" -outform DER 2>/dev/null | \
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${OPENSSL} dgst -sha256 -r 2>/dev/null))
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if [ -e "${c_sha256hash}.pem" ]; then
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continue
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fi
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cp "$file" "${c_sha256hash}.pem"
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files_added=$((files_added+1))
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cont="True"
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c_hash=$(${OPENSSL} x509 -in "$file" -noout -hash 2>/dev/null)
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for ((i=0; i<=100; i++)); do
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if [[ ${c_hash}.$i -ef ${c_sha256hash}.pem ]]; then
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# already linked, skip
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break
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fi
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if [[ ! -e ${c_hash}.$i ]]; then
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ln -s "${c_sha256hash}.pem" "${c_hash}.$i"
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break
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fi
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done
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fi
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done
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done
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echo "CAs added: $files_added"
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popd >/dev/null
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