mirror of
https://github.com/mozilla/cipherscan.git
synced 2024-11-22 06:13:42 +01:00
Add TLS1.3 support
This commit is contained in:
Julien Vehent
parent
b0548dff8e
commit
e79ce277f7
388
cipherscan
388
cipherscan
@ -31,6 +31,7 @@ else
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case "$(uname -s)" in
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Darwin)
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opensslbin_name="openssl-darwin64"
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openssl_legacy_bin_name="openssl-darwin64"
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READLINKBIN=$(which greadlink 2>/dev/null)
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if [[ -z $READLINKBIN ]]; then
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@ -45,6 +46,7 @@ else
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;;
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*)
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opensslbin_name="openssl"
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openssl_legacy_bin_name="openssl.legacy"
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# test that readlink or greadlink (darwin) are present
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READLINKBIN="$(which readlink)"
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@ -126,6 +128,16 @@ SHORTCIPHERSUITE=(
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join_array_by_char ':' "${SHORTCIPHERSUITE[@]}"
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SHORTCIPHERSUITESTRING="$joined_array"
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# TLS 1.3 is different from other versions of the protocol and
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# ciphersuites must be passed to openssl explicitely
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TLS13CIPHERSUITE=(
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'TLS_AES_256_GCM_SHA384'
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'TLS_AES_128_GCM_SHA256'
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'TLS_CHACHA20_POLY1305_SHA256'
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'TLS_AES_128_CCM_SHA256'
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'TLS_AES_128_CCM_8_SHA256'
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)
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# as some servers are intolerant to large client hello's (or ones that have
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# RC4 ciphers below position 64), use the following for cipher testing in case
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# of problems
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@ -367,6 +379,20 @@ check_option_support() {
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[[ $OPENSSLBINHELP =~ "$1" ]]
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}
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init_result_vars() {
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cipher=""
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protocols=""
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pubkey=""
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sigalg=""
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trusted=""
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tickethint=""
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ocspstaple=""
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npn=""
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pfs=""
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current_curves=""
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curves_ordering=""
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}
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parse_openssl_output() {
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# clear variables in case matching doesn't hit them
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current_ocspstaple="False"
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@ -408,10 +434,15 @@ parse_openssl_output() {
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current_npn="${BASH_REMATCH[1]// /}"
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continue
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fi
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if [[ $line =~ ALPN\ protocol:\ (.*) ]]; then
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current_npn="${BASH_REMATCH[1]}"
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continue
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fi
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# extract selected cipher
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# extract selected protocol and cipher
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if [[ $line =~ New,\ ]]; then
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local match=($line)
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current_protocol="${match[1]%%,}"
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current_cipher="${match[4]}"
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continue
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fi
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@ -447,7 +478,7 @@ parse_openssl_output() {
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fi
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# extract used protocol
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if [[ $line =~ ^Protocol\ + ]]; then
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if [[ $line =~ Protocol\ + ]]; then
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local match=($line)
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current_protocol="${match[2]}"
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continue
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@ -500,15 +531,156 @@ parse_openssl_output() {
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fi
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}
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process_results() {
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# collect certificate data
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current_certificates=""
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local certificate_count=$certs_found
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debug "server presented $certificate_count certificates"
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local i
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for ((i=0; i<certificate_count; i=i+1 )); do
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# extract i'th certificate
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local cert="${current_raw_certificates[$i]}"
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# put the output to an array instead running awk '{print $1}'
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local cksum=($(cksum <<<"$cert"))
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# compare the values not just checksums so that eventual collision
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# doesn't mess up results
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if [[ ${known_certs[$cksum]} == "$cert" ]]; then
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if [[ -n "${current_certificates}" ]]; then
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current_certificates+=","
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fi
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current_certificates+="\"${cert_checksums[$cksum]}\""
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continue
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fi
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# compute sha256 fingerprint of the certificate
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local sha256sum=($("${OPENSSLBIN}" x509 -outform DER\
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<<<"$cert" 2>/dev/null |\
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"${OPENSSLBIN}" dgst -sha256 -r 2>/dev/null))
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# check if it is a CA certificate
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local isCA="False"
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if "${OPENSSLBIN}" x509 -noout -text <<<"$cert" 2>/dev/null |\
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grep 'CA:TRUE' >/dev/null; then
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isCA="True"
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fi
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# build trust source for certificate verification
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local trust_source=()
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if [[ -n $CAPATH ]]; then
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trust_source=("-CApath" "$CAPATH")
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elif [[ -e $CACERTS ]]; then
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trust_source=("-CAfile" "$CACERTS")
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fi
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# check if the certificate is actually trusted (server may present
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# unrelated certificates that are not trusted (including self
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# signed ones)
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local saved="False"
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if "${OPENSSLBIN}" verify "${trust_source[@]}" \
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-untrusted <(printf "%s" "${current_raw_certificates[@]}") \
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<(echo "$cert") 2>/dev/null | \
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grep ': OK$' >/dev/null; then
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# if the certificate is an intermediate CA it may be useful
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# for connecting to servers that are misconfigured so save it
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if [[ -n $CAPATH ]] && [[ $SAVECA == "True" ]] && [[ $isCA == "True" ]]; then
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if [[ ! -e "$CAPATH/${sha256sum}.pem" ]]; then
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echo "$cert" > "$CAPATH/${sha256sum}.pem"
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c_hash "$CAPATH" "${sha256sum}.pem"
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fi
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saved="True"
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fi
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fi
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if [[ -n $SAVECRT ]] && [[ $saved == "False" ]]; then
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if [[ ! -e $SAVECRT/${sha256sum}.pem ]]; then
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echo "$cert" > "$SAVECRT/${sha256sum}.pem"
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fi
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fi
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# save the sha sum for reporting
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if [[ -n "${current_certificates}" ]]; then
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current_certificates+=","
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fi
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current_certificates+="\"${sha256sum}\""
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known_certs[$cksum]="$cert"
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cert_checksums[$cksum]="$sha256sum"
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done
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debug "current_certificates: $current_certificates"
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}
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return_results() {
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# if cipher is empty, that means none of the TLS version worked with
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# the current cipher
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if [[ -z "$cipher" ]]; then
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verbose "handshake failed, no ciphersuite was returned"
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result='ConnectionFailure'
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return 2
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# if cipher contains NONE, the cipher wasn't accepted
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elif [[ "$cipher" =~ NONE ]]; then
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $npn $pfs $current_curves $curves_ordering"
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verbose "handshake failed, server returned ciphersuite '$result'"
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return 1
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# the connection succeeded
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else
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current_curves="None"
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# if pfs uses ECDH, test supported curves
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if [[ $pfs =~ ECDH ]]; then
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has_curves="True"
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if [[ $TEST_CURVES == "True" ]]; then
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test_curves
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if [[ -n $ecc_ciphers ]]; then
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ecc_ciphers+=":"
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fi
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ecc_ciphers+="$cipher"
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else
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# resolve the openssl curve to the proper IANA name
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current_curves="$(get_curve_name "$(echo $pfs|cut -d ',' -f2)")"
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curves_ordering="unknown"
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fi
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fi
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $npn $pfs $current_curves $curves_ordering"
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verbose "handshake succeeded, server returned ciphersuite '$result'"
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return 0
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fi
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}
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test_tls13_cipher_on_target() {
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init_result_vars
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local sslcommand=("$@")
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ratelimit
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debug echo \"Q\" \| "${sslcommand[@]}" $tls_version
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local tmp=$(echo "Q" | "${sslcommand[@]}" $tls_version 1>/dev/stdout 2>/dev/null)
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parse_openssl_output <<<"$tmp"
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cipher=$current_cipher
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protocols=$current_protocol
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pfs=$current_pfs
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pubkey=$current_pubkey
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sigalg=$current_sigalg
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trusted=$current_trusted
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tickethint=$current_tickethint
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ocspstaple=$current_ocspstaple
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npn="$current_npn"
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certificates="$current_certificates"
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process_results
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certificates=$current_certificates
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verbose "selected cipher is '$cipher'"
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verbose "using protocol '$protocols'"
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return_results
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}
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# Connect to a target host with the selected ciphersuite
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test_cipher_on_target() {
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local sslcommand=("$@")
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cipher=""
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local cmnd
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protocols=""
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pfs=""
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init_result_vars
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previous_cipher=""
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certificates=""
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local sslcommand=("$@")
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local cmnd
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for tls_version in "-ssl2" "-ssl3" "-tls1" "-tls1_1" "-tls1_2"
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do
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cmnd=("${sslcommand[@]}")
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@ -524,6 +696,14 @@ test_cipher_on_target() {
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fi
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done
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fi
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# we need openssl.legacy to test for these old protocols
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if [[ "$tls_version" != "-tls1_2" ]]; then
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cmnd[2]=$OPENSSLLEGACYBIN
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else
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cmnd+=('-nextprotoneg' 'http/1.1')
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fi
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ratelimit
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debug echo \"Q\" \| "${cmnd[@]}" $tls_version
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local tmp=$(echo "Q" | "${cmnd[@]}" $tls_version 1>/dev/stdout 2>/dev/null)
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@ -532,80 +712,7 @@ test_cipher_on_target() {
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verbose "selected cipher is '$current_cipher'"
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verbose "using protocol '$current_protocol'"
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# collect certificate data
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current_certificates=""
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local certificate_count=$certs_found
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debug "server presented $certificate_count certificates"
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local i
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for ((i=0; i<certificate_count; i=i+1 )); do
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# extract i'th certificate
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local cert="${current_raw_certificates[$i]}"
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# put the output to an array instead running awk '{print $1}'
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local cksum=($(cksum <<<"$cert"))
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# compare the values not just checksums so that eventual collision
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# doesn't mess up results
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if [[ ${known_certs[$cksum]} == "$cert" ]]; then
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if [[ -n "${current_certificates}" ]]; then
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current_certificates+=","
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fi
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current_certificates+="\"${cert_checksums[$cksum]}\""
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continue
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fi
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# compute sha256 fingerprint of the certificate
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local sha256sum=($("${OPENSSLBIN}" x509 -outform DER\
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<<<"$cert" 2>/dev/null |\
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"${OPENSSLBIN}" dgst -sha256 -r 2>/dev/null))
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# check if it is a CA certificate
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local isCA="False"
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if "${OPENSSLBIN}" x509 -noout -text <<<"$cert" 2>/dev/null |\
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grep 'CA:TRUE' >/dev/null; then
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isCA="True"
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fi
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# build trust source for certificate verification
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local trust_source=()
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if [[ -n $CAPATH ]]; then
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trust_source=("-CApath" "$CAPATH")
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elif [[ -e $CACERTS ]]; then
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trust_source=("-CAfile" "$CACERTS")
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fi
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# check if the certificate is actually trusted (server may present
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# unrelated certificates that are not trusted (including self
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# signed ones)
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local saved="False"
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if "${OPENSSLBIN}" verify "${trust_source[@]}" \
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-untrusted <(printf "%s" "${current_raw_certificates[@]}") \
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<(echo "$cert") 2>/dev/null | \
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grep ': OK$' >/dev/null; then
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# if the certificate is an intermediate CA it may be useful
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# for connecting to servers that are misconfigured so save it
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if [[ -n $CAPATH ]] && [[ $SAVECA == "True" ]] && [[ $isCA == "True" ]]; then
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if [[ ! -e "$CAPATH/${sha256sum}.pem" ]]; then
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echo "$cert" > "$CAPATH/${sha256sum}.pem"
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c_hash "$CAPATH" "${sha256sum}.pem"
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fi
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saved="True"
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fi
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fi
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if [[ -n $SAVECRT ]] && [[ $saved == "False" ]]; then
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if [[ ! -e $SAVECRT/${sha256sum}.pem ]]; then
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echo "$cert" > "$SAVECRT/${sha256sum}.pem"
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fi
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fi
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# save the sha sum for reporting
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if [[ -n "${current_certificates}" ]]; then
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current_certificates+=","
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fi
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current_certificates+="\"${sha256sum}\""
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known_certs[$cksum]="$cert"
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cert_checksums[$cksum]="$sha256sum"
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done
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debug "current_certificates: $current_certificates"
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process_results
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# parsing finished, report result
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if [[ -z "$current_protocol" || "$current_cipher" == '(NONE)' ]]; then
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@ -638,43 +745,11 @@ test_cipher_on_target() {
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certificates="$current_certificates"
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# grab the cipher and PFS key size
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done
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# if cipher is empty, that means none of the TLS version worked with
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# the current cipher
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if [[ -z "$cipher" ]]; then
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verbose "handshake failed, no ciphersuite was returned"
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result='ConnectionFailure'
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return 2
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# if cipher contains NONE, the cipher wasn't accepted
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elif [[ "$cipher" == '(NONE) ' ]]; then
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $npn $pfs $current_curves $curves_ordering"
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verbose "handshake failed, server returned ciphersuite '$result'"
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return 1
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# the connection succeeded
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else
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current_curves="None"
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# if pfs uses ECDH, test supported curves
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if [[ $pfs =~ ECDH ]]; then
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has_curves="True"
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if [[ $TEST_CURVES == "True" ]]; then
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test_curves
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if [[ -n $ecc_ciphers ]]; then
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ecc_ciphers+=":"
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fi
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ecc_ciphers+="$cipher"
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else
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# resolve the openssl curve to the proper IANA name
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current_curves="$(get_curve_name "$(echo $pfs|cut -d ',' -f2)")"
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curves_ordering="unknown"
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fi
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fi
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result="$cipher $protocols $pubkey $sigalg $trusted $tickethint $ocspstaple $npn $pfs $current_curves $curves_ordering"
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verbose "handshake succeeded, server returned ciphersuite '$result'"
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return 0
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fi
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return_results
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}
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# Calculate the average handshake time for a specific ciphersuite
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bench_cipher() {
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local ciphersuite="$1"
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@ -698,6 +773,42 @@ bench_cipher() {
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cipherbenchms="$((t/1000/BENCHMARKITER))"
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}
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# Connect to the target with TLS1.3 and retrieve the chosen cipher
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# recursively until the connection fails
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get_tls13_cipher_pref() {
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[[ "$OUTPUTFORMAT" == "terminal" ]] && [[ $DEBUG -lt 1 ]] && echo -n '.'
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local tls13ciphersuite=("$@")
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join_array_by_char ':' "${tls13ciphersuite[@]}"
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local tls13ciphersuitestring="$joined_array"
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local sslcommand
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sslcommand=("${TIMEOUTBIN[@]}" "$TIMEOUT" "$OPENSSLBIN" "s_client")
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if [[ -n "$CAPATH" ]]; then
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sslcommand+=("-CApath" "$CAPATH" "-showcerts")
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elif [[ -e $CACERTS ]]; then
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sslcommand+=("-CAfile" "$CACERTS")
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fi
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sslcommand+=("-trusted_first" "-status" "${SCLIENTARGS[@]}" "-connect" "$TARGET")
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sslcommand+=("-tls1_3" "-ciphersuites" "$tls13ciphersuitestring" "-alpn" "http/1.1,h2")
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verbose "Connecting to '$TARGET' with tls1.3 ciphersuite '$tls13ciphersuitestring'"
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# If the connection succeeded with the current cipher, benchmark and store
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if test_tls13_cipher_on_target "${sslcommand[@]}"; then
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cipherspref=("${cipherspref[@]}" "$result")
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ciphercertificates=("${ciphercertificates[@]}" "$certificates")
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pciph=($result)
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# remove previous cipher from tls13 ciphersuites
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for i in "${!tls13ciphersuite[@]}"; do
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if [[ ${tls13ciphersuite[i]} = "$pciph" ]]; then
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unset 'tls13ciphersuite[i]'
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fi
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done
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get_tls13_cipher_pref "${tls13ciphersuite[@]}"
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return 0
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fi
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}
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# Connect to the target and retrieve the chosen cipher
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# recursively until the connection fails
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get_cipher_pref() {
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@ -712,7 +823,7 @@ get_cipher_pref() {
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sslcommand+=("-CAfile" "$CACERTS")
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fi
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sslcommand+=("-trusted_first" "-status" "${SCLIENTARGS[@]}" "-connect" "$TARGET")
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sslcommand+=("-cipher" "$ciphersuite" "-nextprotoneg" "http/1.1")
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sslcommand+=("-cipher" "$ciphersuite")
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verbose "Connecting to '$TARGET' with ciphersuite '$ciphersuite'"
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# If the connection succeeded with the current cipher, benchmark and store
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@ -1170,7 +1281,7 @@ test_curves() {
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sslcommand+=("-trusted_first")
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# force the TLS to send a TLS1.0 client hello at least, as with SSLv2
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# ciphers present it will try to send a SSLv2 compatible client hello
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sslcommand+=("-no_ssl2" "-no_ssl3")
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sslcommand+=("-no_ssl3")
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#
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# here we use the same logic as with detecting cipher suites: first
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@ -1343,10 +1454,10 @@ test_tls_tolerance() {
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# curves, full list of ciphers, NPN, ALPN
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#
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declare -A tls_vers_tests
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tls_vers_tests['big-TLSv1.2']=""
|
||||
tls_vers_tests['big-TLSv1.1']="-no_tls1_2"
|
||||
tls_vers_tests['big-TLSv1.0']="-no_tls1_2 -no_tls1_1"
|
||||
tls_vers_tests['big-SSLv3']="-no_tls1_2 -no_tls1_1 -no_tls1"
|
||||
tls_vers_tests['big-TLSv1.2']="-no-tls1_3"
|
||||
tls_vers_tests['big-TLSv1.1']="-no-tls1_3 -no_tls1_2"
|
||||
tls_vers_tests['big-TLSv1.0']="-no-tls1_3 -no_tls1_2 -no_tls1_1"
|
||||
tls_vers_tests['big-SSLv3']="-no-tls1_3 -no_tls1_2 -no_tls1_1 -no_tls1"
|
||||
|
||||
local sslcommand
|
||||
sslcommand=("${TIMEOUTBIN[@]}" "$TIMEOUT" "$OPENSSLBIN" "s_client")
|
||||
@ -1439,8 +1550,8 @@ test_tls_tolerance() {
|
||||
# v2, small but with TLS1.1 as max version
|
||||
#
|
||||
ratelimit
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_2"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_2 2>/dev/null)
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_3 -no_tls1_2"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_3 -no_tls1_2 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "Negotiated proto: $current_protocol, cipher: $current_cipher"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
@ -1454,8 +1565,8 @@ test_tls_tolerance() {
|
||||
# v2, small but with TLS1.0 as max version
|
||||
#
|
||||
ratelimit
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_2 -no_tls1_1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_2 -no_tls1_1 2>/dev/null)
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_3 -no_tls1_2 -no_tls1_1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_3 -no_tls1_2 -no_tls1_1 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "Negotiated proto: $current_protocol, cipher: $current_cipher"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
@ -1469,8 +1580,8 @@ test_tls_tolerance() {
|
||||
# v2, small but with SSLv3 as max version
|
||||
#
|
||||
ratelimit
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_2 -no_tls1_1 -no_tls1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_2 -no_tls1_1 -no_tls1 2>/dev/null)
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_3 -no_tls1_2 -no_tls1_1 -no_tls1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_3 -no_tls1_2 -no_tls1_1 -no_tls1 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "Negotiated proto: $current_protocol, cipher: $current_cipher"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
@ -1511,8 +1622,8 @@ test_tls_tolerance() {
|
||||
# v3 format TLSv1.1 hello, small cipher list
|
||||
#
|
||||
ratelimit
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_2"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_2 2>/dev/null)
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_3 -no_tls1_2"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_3 -no_tls1_2 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "Negotiated proto: $current_protocol, cipher: $current_cipher"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
@ -1526,8 +1637,8 @@ test_tls_tolerance() {
|
||||
# v3 format TLSv1.0 hello, small cipher list
|
||||
#
|
||||
ratelimit
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_2 -no_tls1_1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_2 -no_tls1_1 2>/dev/null)
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_3 -no_tls1_2 -no_tls1_1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_3 -no_tls1_2 -no_tls1_1 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "Negotiated proto: $current_protocol, cipher: $current_cipher"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
@ -1542,8 +1653,8 @@ test_tls_tolerance() {
|
||||
#
|
||||
if check_option_support "-no_tlsext"; then
|
||||
ratelimit
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_2 -no_tls1_1 -no_tlsext"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_2 -no_tls1_1 -no_tlsext 2>/dev/null)
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_3 -no_tls1_2 -no_tls1_1 -no_tlsext"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_3 -no_tls1_2 -no_tls1_1 -no_tlsext 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "Negotiated proto: $current_protocol, cipher: $current_cipher"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
@ -1558,8 +1669,8 @@ test_tls_tolerance() {
|
||||
# v3 format SSLv3 hello, small cipher list
|
||||
#
|
||||
ratelimit
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_2 -no_tls1_1 -no_tls1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_2 -no_tls1_1 -no_tls1 2>/dev/null)
|
||||
verbose "Testing fallback with ${sslcommand[*]} -no_tls1_3 -no_tls1_2 -no_tls1_1 -no_tls1"
|
||||
local tmp=$(echo Q | "${sslcommand[@]}" -no_tls1_3 -no_tls1_2 -no_tls1_1 -no_tls1 2>/dev/null)
|
||||
parse_openssl_output <<<"$tmp"
|
||||
verbose "Negotiated proto: $current_protocol, cipher: $current_cipher"
|
||||
if [[ -z $current_protocol || $current_cipher == "(NONE)" \
|
||||
@ -2027,6 +2138,10 @@ if [[ -z $OPENSSLBIN ]]; then
|
||||
if ! [[ -x "${OPENSSLBIN}" ]]; then
|
||||
OPENSSLBIN="$(which openssl)" # fallback to generic openssl
|
||||
fi
|
||||
OPENSSLLEGACYBIN="${REALPATH}/${openssl_legacy_bin_name}"
|
||||
if ! [[ -x "${OPENSSLLEGACYBIN}" ]]; then
|
||||
OPENSSLLEGACYBIN="$(which openssl)" # fallback to generic openssl
|
||||
fi
|
||||
fi
|
||||
# use custom config file to enable GOST ciphers
|
||||
if [[ -e $DIRNAMEPATH/openssl.cnf ]]; then
|
||||
@ -2164,6 +2279,7 @@ ciphercertificates=()
|
||||
results=()
|
||||
|
||||
# Call to the recursive loop that retrieves the cipher preferences
|
||||
get_tls13_cipher_pref "${TLS13CIPHERSUITE[@]}"
|
||||
get_cipher_pref $CIPHERSUITE
|
||||
|
||||
# in case the server is intolerant to our big hello, try again with
|
||||
|
||||
BIN
openssl.legacy
Executable file
BIN
openssl.legacy
Executable file
Binary file not shown.
Loading…
Reference in New Issue
Block a user