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testssl.sh
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Merge pull request #2017 from drwetter/cab_is4browsers 

Add browser requirement for the entropy of cert serial
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Dirk Wetter 2021-10-21 09:51:00 +02:00 committed by GitHub
parent 79df758023 110d1aa73c
commit 489b63e9dd
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1 changed files with 3 additions and 2 deletions
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testssl.sh
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@ -8905,8 +8905,9 @@ certificate_info() {
outln
prln_svrty_low "${spaces}NOT ok: length must not exceed 20 bytes (is: $len_cert_serial bytes)"
fileout "cert_serialNumberLen${json_postfix}" "LOW" "$len_cert_serial is too long"
elif [[ $len_cert_serial -lt 8 ]]; then
# Wording is from https://cabforum.org/wp-content/uploads/CA-Browser-Forum-BR-1.8.0.pdf
elif [[ $len_cert_serial -lt 8 ]] && [[ $SERVICE == HTTP ]]; then
# We only want this check for browsers as this requirement comes from the CA browser forum,
# see e.g. https://cabforum.org/wp-content/uploads/CA-Browser-Forum-BR-1.8.0.pdf
prln_svrty_low " NOT ok: length should be >= 64 bits entropy (is: $len_cert_serial bytes)"
fileout "cert_serialNumberLen${json_postfix}" "LOW" "$len_cert_serial is not enough entropy"
else