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Merge pull request #1126 from dcooper16/fewer_key_shares

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Send fewer key shares
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Dirk Wetter 2018-09-19 09:30:28 +02:00 committed by GitHub
commit ef442f1c1c
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1 changed files with 4 additions and 0 deletions
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testssl.sh
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@ -11505,6 +11505,7 @@ generate_key_share_extension() {
local -i i len supported_groups_len group local -i i len supported_groups_len group
local extn_len list_len local extn_len list_len
local key_share key_shares="" local key_share key_shares=""
local -i nr_key_shares=0
supported_groups="${1//\\x/}" supported_groups="${1//\\x/}"
[[ "${supported_groups:0:4}" != "000a" ]] && return 1 [[ "${supported_groups:0:4}" != "000a" ]] && return 1
@ -11548,6 +11549,9 @@ generate_key_share_extension() {
key_share="${TLS13_PUBLIC_KEY_SHARES[group]}" key_share="${TLS13_PUBLIC_KEY_SHARES[group]}"
if [[ ${#key_share} -gt 4 ]]; then if [[ ${#key_share} -gt 4 ]]; then
key_shares+=",$key_share" key_shares+=",$key_share"
nr_key_shares+=1
# Don't include more than two keys, so that the extension isn't too large.
[[ $nr_key_shares -ge 2 ]] && break
fi fi
done done
[[ -z "$key_shares" ]] && tm_out "" && return 0 [[ -z "$key_shares" ]] && tm_out "" && return 0