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all IANA cipher suites #2526

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kylak opened this issue Jul 18, 2024 · 4 comments
Closed

all IANA cipher suites #2526

kylak opened this issue Jul 18, 2024 · 4 comments

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@kylak
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kylak commented Jul 18, 2024

Which version are you referring to
The lastest.

Hello, does testssl.sh uses all IANA cipher suites ?

Thanks.

@drwetter
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drwetter commented Jul 18, 2024 via email

@kylak
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kylak commented Jul 18, 2024

Here's the answer : OWASP/O-Saft#135 (comment)

@drwetter
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Yeah, I remember having a discussion with EnDe a looong time back why testssl.sh doesn´t do that and scanning for every possible cipher suite. Conclusion was: Our tools have just different goals.

You can however try to scan with an undocumented feature like ./testssl.sh -q --devel 03 "cc,a8, cc,a9, cc,aa, cc,ab, cc,ac" blog.cloudflare.com and use all IANA suites. ;-)

There's another issue why I believe in general the result maybe not reliable: for some cipher suites you would need to provide TLS extensions or specific values in those extensions, otherwise the server won't possibly accept the ClientHello, see e.g. #1207 (comment)

@kylak
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kylak commented Jul 19, 2024

There's another issue why I believe in general the result maybe not reliable: for some cipher suites you would need to provide TLS extensions or specific values in those extensions, otherwise the server won't possibly accept the ClientHello, see e.g. #1207 (comment)

Just opened an issue here to know if O-Saft handles these scenarios.

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