Query: SM2 algorithm support

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amal.jesudas
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Joined: Tue, 2017-12-19, 11:49

Query: SM2 algorithm support

#1 Post by amal.jesudas » Sun, 2021-09-19, 10:27

Need to know if dcmtk supports SM2 encryption?
https://www.openssl.org/docs/man1.1.1/man7/SM2.html
I could not see any SM2 related cipher suite listed in tlsciphr.cc[\dcmtls\libsrc\tlsciphr.cc].

Please ignore any mistake in my query as I am not familiar with SM2 encryption.
Thanks in advance.

Regards,
Amal

Marco Eichelberg
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Re: Query: SM2 algorithm support

#2 Post by Marco Eichelberg » Fri, 2021-10-08, 17:14

DCMTK does not support SM2 encryption at the moment. The TLS implementation in DCMTK is based on the OpenSSL library, and that does not support any ShangMi (SM) based ciphersuites, not even in the latest version 3.0.0.
That said, the ShangMi ciphersuites were only standardized as RFC 8998 in March 2021, so support may well be implemented in later versions of OpenSSL, and in that case we would probably also make them available within DCMTK.

amal.jesudas
Posts: 28
Joined: Tue, 2017-12-19, 11:49

Re: Query: SM2 algorithm support

#3 Post by amal.jesudas » Thu, 2021-10-14, 09:32

Thanks Marco for the clarification.

Regards,
Amal

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