[nrf fromtree] Bluetooth: Host: Cherry pick gatt sign counter #3515
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weeTike
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Nov 24, 2025
This commit deprecates: - the `CONFIG_BT_SIGNING` Kconfig option - `BT_GATT_CHRC_AUTH` property IOW, this commit deprecates the LE Security mode 2 support. Explanation: Erratum ES-26047 introduced in Bluetooth Core Specification v6.2 requires SingCounter to be persistently stored to prevent replay attacks. Currently, the Host doesn't store SignCounter, therefore the device is vulnerable to replay attacks after reboot. Additionally, the current implementation doesn't assume that SignCounter of a received message can be incremented by more than one and thus may not validate correct message. The Bluetooth Security and Privacy Best Practices Guide recommends to not using Data signing and recommends to use LE Security mode 1 levels 2, 3 or 4 instead. The Signed Write Without Response sub-procedure, which is the only user of Data signing, is optional (see Vol 3, Part G, Table 4.1). See also ES-18901. The aforementioned reasons make no sense to keep this feature. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no> (cherry picked from commit b7b35b8)
…files Remove duplicated prj.conf file. prj_6, prj_7, prj_14 are identicall. Since prj_6.conf is unchanged, keeping it. prj_8, prj_9, prj_15 are identicall. Since prj_15.conf is unchanged, keeping it. Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no> (cherry picked from commit 66679c1)
…elated ICS This commit removes data signing related ICS. Removed ICS: - SM 6/1: Signing Algorithm Generation - SM 6/2: Signing Algorithm Resolving - GATT 3/13: Signed Write Without Response - GATT 9/10: Signed Write Command - GATT 7/3: LE Security mode 2 - GAP 25/2: LE Security mode 2 - GAP 35/2: LE Security mode 2 - GAP 25/5: Connection data signing procedure - GAP 35/5: Connection data signing procedure - GAP 25/6: Authenticate signed data procedure - GAP 35/6: Authenticate signed data procedure - GAP 27b/8: Connection Signature Resolving Key (CSRK) - GAP 37b/8: Connection Signature Resolving Key (CSRK) The following tests are not supported any longer: - GAP/SEC/CSIGN/BI-01-C - GAP/SEC/CSIGN/BI-02-C - GAP/SEC/CSIGN/BI-03-C - GAP/SEC/CSIGN/BI-04-C - GAP/SEC/CSIGN/BV-01-C - GAP/SEC/CSIGN/BV-02-C - GATT/CL/GAW/BV-02-C - SM/CEN/SIGN/BV-01-C Signed-off-by: Pavel Vasilyev <pavel.vasilyev@nordicsemi.no> (cherry picked from commit 116d4dd)
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Nov 25, 2025
Automatically created by action-manifest-pr GH action from PR: nrfconnect/sdk-zephyr#3515 Signed-off-by: Nordic Builder <pylon@nordicsemi.no>
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Superseded by #3513 |
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Upstream PR : # 99204