While there is a way to mark an attribute as needing authentication and/or authorization, there does not seem to be a way to mark an attribute as requiring encryption (or a particular key size), and I couldn't find any code that would return the ATT_ECODE_INSUFF_ENC or ATT_ECODE_INSUFF_ENCR_KEY_SIZE responses. There is an explicit test case in the GATT TS for this: TP/GAR/SR/BI-05-C [Read Characteristic Value - Insufficient Encryption Key Size] The TRCL maps this: (GATT:3/8 AND ATT:5/2) OR (ATT:3/1 AND ATT:3/10 AND ATT:5/2) GATT:3/8 [Read Characteristic Value] is Mandatory ATT:5/2 - [LE Security Mode 1] is Optional, but without it none of the authentication or authorization stuff makes sense either Reference: GATT 4.8.1 ATT 3.4.11, 3.4.4.3 Thoughts? Scott -- Scott James Remnant | Chrome OS Systems | keybuk@xxxxxxxxxx | Google -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
