Author :
tb
Date :
2022-01-09 15:15:25
Hash :628f93c2 Message :Prepare to provide EVP_MD_CTX{,_set}_pkey_ctx()
This API with very strange ownership handling is used by Ruby 3.1,
unfortunately.
For unclear reasons, it was decided that the caller retains ownership of
the pctx passed in. EVP_PKEY_CTX aren't refcounted, so a flag was added to
make sure that md_ctx->pctx is not freed in EVP_MD_CTX_{cleanup,reset}().
Since EVP_MD_CTX_copy_ex() duplicates the md_ctx->pctx, the flag also needs
to be unset on the duplicated EVP_MD_CTX.
ok inoguchi jsing
tb