@class NSData; @interface NFTrustSignRequest : NFTrustObject @property (retain, nonatomic) NSData *challenge; @property (retain, nonatomic) NSData *data; + (BOOL)supportsSecureCoding; + (id)signRequestWithChallenge:(id)a0 data:(id)a1; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; @end