-# ansi-c2tnb239v{2,3} have unacceptable cofactors
-# ansi-c2onb239v{4,5} don't include conversion factors
+# ansi-c2tnb239v{2,3} and ansi-c2onb239v2 have unacceptable cofactors
+curve ansi-c2onb239v1 binnorm
+ p 0x800000000000000000000000000000000000000000000000001000000001
+ beta 0x3b5ce9846911b248f9347018a7ac8cce3662cee952ba45becd02d4b903ec
+ a 0x182dd45f5d470239b8983fea47b8b292641c57f9bf84baecde8bb3adce30
+ b 0x147a9c1d4c2ce9be5d34ec02797f76667ebad5a3f93fa2a524bfde91ef28
+ r 0x200000000000000000000000000000474f7e69f42fe430931d0b455aae8b
+ h 4
+ gx 0x4912ad657f1d1c6b32edb9942c95e226b06fb012cd40fdea0d72197c8104
+ gy 0x01f1fbc3d21168fd3f66c441c2b5c6cfdcd9ed3e13646b7a4db9a3b0c286