TextCompatibilityMode property (OpenPGP writer)
public bool TextCompatibilityMode
This property specifies if whitespaces must be trimmed from the signature. Several versions of PGP have bug in their implementations that results in creation of incorrect text signatures. It is a good idea to set this property to True if you want to interoperate with those versions of PGP. Set this property to False if you need to create OpenPGP-compliant messages.