EVP_MD_CTX_set_flags
EVP_MD_CTX_set_flags(si->mctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED);
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED);
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED);
EVP_MD_CTX_set_flags(out, EVP_MD_CTX_FLAG_REUSE);
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT);
EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_KEEP_PKEY_CTX);
EVP_MD_CTX_set_flags(ctx->i_ctx, flags);
EVP_MD_CTX_set_flags(ctx->o_ctx, flags);
EVP_MD_CTX_set_flags(ctx->md_ctx, flags);
void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags);