Add SM2 support for EVP_PKEY_Q_keygen

There is no reason preventing this API to support SM2, which gives us a simple method to do SM2 key gen. CLA: trivial Reviewed-by: Hugo Landau <hlandau@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from #19736)
openssl · Nov 24, 2022 · 3f32d29 · 3f32d29
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diff --git a/crypto/evp/evp_lib.c b/crypto/evp/evp_lib.c
@@ -1215,7 +1215,8 @@ EVP_PKEY *EVP_PKEY_Q_keygen(OSSL_LIB_CTX *libctx, const char *propq,
     } else if (OPENSSL_strcasecmp(type, "ED25519") != 0
                && OPENSSL_strcasecmp(type, "X25519") != 0
                && OPENSSL_strcasecmp(type, "ED448") != 0
-               && OPENSSL_strcasecmp(type, "X448") != 0) {
+               && OPENSSL_strcasecmp(type, "X448") != 0
+               && OPENSSL_strcasecmp(type, "SM2") != 0) {
         ERR_raise(ERR_LIB_EVP, ERR_R_PASSED_INVALID_ARGUMENT);
         goto end;
     }

diff --git a/doc/man3/EVP_PKEY_keygen.pod b/doc/man3/EVP_PKEY_keygen.pod
@@ -100,7 +100,7 @@ If I<type> is C<RSA>,
 a B<size_t> parameter must be given to specify the size of the RSA key.
 If I<type> is C<EC>,
 a string parameter must be given to specify the name of the EC curve.
-If I<type> is C<X25519>, C<X448>, C<ED25519>, or C<ED448>
+If I<type> is C<X25519>, C<X448>, C<ED25519>, C<ED448>, or C<SM2>
 no further parameter is needed.
 
 =head1 RETURN VALUES