[openssl-users] Personal CA: are cert serial numbers critical?
rsalz at akamai.com
Wed Aug 16 21:01:40 UTC 2017
> There’s no such requirement. It MUST be at most 20 octets long.
>> - Serial numbers contain cryptographically strong random bits, currently at
>> least 64 random bits, though it is best if the entire serial number looks
>> random from the outside. This is not implemented by the openssl ca program.
Edit apps/apps.h to change SERIAL_RAND_BITS and use the –create_serial flag.
I’ll be making a patch to do this more easily for master.
>Use of the commonName attribute has been deprecated long ago.
> Where is this documented?
RFC 2818 in 2000. See aslo https://groups.google.com/a/chromium.org/forum/#!topic/security-dev/IGT2fLJrAeo
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