avoid collision of STEK.name[0], so that it can be used as an identifier of QUIC CID encryption key
avoid collision of STEK.name[0], so that it can be used as an identifier of QUIC CID encryption key

cwyang/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,h2o/h2o,cwyang/h2o,yannick/h2o,cwyang/h2o,devnexen/h2o,devnexen/h2o,devnexen/h2o,h2o/h2o,h2o/h2o,h2o/h2o,cwyang/h2o,h2o/h2o,yannick/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,yannick/h2o,h2o/h2o,cwyang/h2o,cwyang/h2o,devnexen/h2o,yannick/h2o,yannick/h2o,cwyang/h2o,devnexen/h2o,devnexen/h2o,yannick/h2o,devnexen/h2o,h2o/h2o,yannick/h2o,cwyang/h2o