SHATransform      288 ext/digest/sha.c       SHATransform (ctx);
SHATransform      297 ext/digest/sha.c       SHATransform (ctx);
SHATransform      333 ext/digest/sha.c       SHATransform (ctx);
SHATransform      348 ext/digest/sha.c   SHATransform (ctx);