+.I "-k [size] keypair.snk"
+Create a new strongname keypair in the specified file. The default key
+length is 1024 bits and MUST ALWAYS be used when signing 1.x assemblies.
+Any value from 384 to 16384 bits (in increments of 8 bits) is a valid key
+length to sign 2.x assemblies. To ensure maximum compatibility you may
+want to continue using 1024 bits keys. Note that there's no good reason,
+even if it's possible, to use length lesser than 1024 bits.