【Feature Request】Consider adding "SM2" as a new algorithm

GnuPG
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For more: cdn.standards.iteh.ai/samples/76382/b9b985d381c649c2b275d69fa947968a/ISO-IEC-14888-3-2018.pdf (6.12——SM2 Part).

Advantages in brief:

  1. Much less size (fixed size to 256 bits) only, compared with RSA (2048 or 4096 bits) and ECC (128-512 bits).

  2. Much faster, compared with RSA in decryption/encryption, a little faster than ECC.

  3. With encryption/decryption functions/key changing with each other.

  4. Free to the public.

  5. Safe in use.

2

SM2 is already implemented. You can read more about this topic in the ticket system for Gpg4win/GnuPG.

1 Like
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Thanks anyway! I should send another issue to GPG4WIN to confirm other issues.

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I have to revise my previous answer after I tried to find an answer for Is "SM2" called by Kleopatra?. SM2 is implemented by libgcrypt which is used by GnuPG. I looked into the source code and found only two lines of code where SM2 is mentioned like in the file https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=blob_plain;f=tpm2d/tpm2.c;hb=HEAD. But other algorithms appear much more often. So, right now I’m not sure if GnuPG is making use of SM2. Also, if I’m calling gpg --expert --full-gen-key there is no hint about SM2.

I recommend you to open an issue on https://dev.gnupg.org instead of a topic in this forum because the developers of GnuPG/Gpg4win might overlook your topic here.

1 Like
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Got it, thanks and I’ll check it first.