diff --git a/doc/manual/docs/picts/gatt_client_security.txt b/doc/manual/docs/picts/gatt_client_security.txt
index 6f7e2b2e4..ce2fddb22 100644
--- a/doc/manual/docs/picts/gatt_client_security.txt
+++ b/doc/manual/docs/picts/gatt_client_security.txt
@@ -97,7 +97,6 @@ endif
 @enduml
 
 
-
 @startuml
 title Mandatory Authentication in Central Role
 start
@@ -193,6 +192,12 @@ else (no)
 title Proactive Authentication in Central Role
 start
 : A connects to B;
+: SM checks if LTK available;
+note right
+  SM actions triggered by
+  connection complete
+  (independent from GATT Client)
+end note
 : App triggers GATT Client request on A;
 if (LTK available?) then (no)
   : GATT Client request sent;
@@ -246,6 +251,12 @@ endif
 title Proactive Authentication in Peripheral Role
 start
 : A connects to B;
+: SM checks if LTK available;
+note right
+  SM actions triggered by
+  connection complete
+  (independent from GATT Client)
+end note
 : App triggers GATT Client request on A;
 if (LTK available?) then (no)
   : GATT Client request sent;
diff --git a/doc/manual/docs/picts/gatt_client_security_proactive_authentication_central.svg b/doc/manual/docs/picts/gatt_client_security_proactive_authentication_central.svg
index 1abd21eba..abd5bf7b8 100644
--- a/doc/manual/docs/picts/gatt_client_security_proactive_authentication_central.svg
+++ b/doc/manual/docs/picts/gatt_client_security_proactive_authentication_central.svg
@@ -1,9 +1,15 @@
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font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="328" x="580" y="527.9355">SM_EVENT_PAIRING_COMPLETE(ERROR_CODE_SUCCESS)</text><rect fill="#FEFECE" filter="url(#f1xgs8alhcll3x)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="191" x="646.5" y="575.7656"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="660.5" y="596.9043">GATT Client request re-sent</text><rect fill="#23DB2B" filter="url(#f1xgs8alhcll3x)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="204" x="640" y="643.7031"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="180" x="654" y="664.8418">App receives GATT Response</text><ellipse cx="742" cy="710.6719" fill="#FFFFFF" filter="url(#f1xgs8alhcll3x)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="742" cy="710.6719" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1xgs8alhcll3x)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="243" x="962" y="506.7969"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="219" x="976" y="527.9355">SM_EVENT_PAIRING_COMPLETE(error)</text><rect fill="#FD5B41" filter="url(#f1xgs8alhcll3x)" height="47.9375" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="291" x="938" y="575.7656"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="267" x="952" y="596.9043">App receives GATT_QUERY_COMPLETE event</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="192" x="968" y="610.873">with ATT_ERROR_INSUFFICIENT_X</text><ellipse cx="1083.5" cy="668.6719" fill="#FFFFFF" filter="url(#f1xgs8alhcll3x)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="1083.5" cy="668.6719" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1xgs8alhcll3x)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="235" x="1510.5" y="212.8906"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="211" x="1524.5" y="234.0293">SM_EVENT_REENCRYPTION_STARTED</text><rect fill="#FEFECE" filter="url(#f1xgs8alhcll3x)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="119" x="1568.5" y="266.8594"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="95" x="1582.5" y="287.998">start encryption</text><polygon fill="#FEFECE" filter="url(#f1xgs8alhcll3x)" points="1591,335.8281,1665,335.8281,1677,347.8281,1665,359.8281,1591,359.8281,1579,347.8281,1591,335.8281" 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textLength="21" x="833.25" y="547.6011">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="971.25" y="547.6011">no</text><rect fill="#FEFECE" filter="url(#f16lc0h3kr06b3)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="352" x="566" y="572.1953"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="328" x="580" y="593.334">SM_EVENT_PAIRING_COMPLETE(ERROR_CODE_SUCCESS)</text><rect fill="#FEFECE" filter="url(#f16lc0h3kr06b3)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="191" x="646.5" y="641.1641"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="660.5" y="662.3027">GATT Client request re-sent</text><rect fill="#23DB2B" filter="url(#f16lc0h3kr06b3)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" 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lengthAdjust="spacingAndGlyphs" textLength="267" x="952" y="662.3027">App receives GATT_QUERY_COMPLETE event</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="192" x="968" y="676.2715">with ATT_ERROR_INSUFFICIENT_X</text><ellipse cx="1083.5" cy="734.0703" fill="#FFFFFF" filter="url(#f16lc0h3kr06b3)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="1083.5" cy="734.0703" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f16lc0h3kr06b3)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="235" x="1560.5" y="278.2891"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="211" x="1574.5" y="299.4277">SM_EVENT_REENCRYPTION_STARTED</text><rect fill="#FEFECE" filter="url(#f16lc0h3kr06b3)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" 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 @startuml
 title Proactive Authentication in Central Role
 start
 : A connects to B;
-: App on A triggers GATT Client request;
+: SM checks if LTK available;
+note right
+  SM actions triggered by
+  connection complete
+  (independent from GATT Client)
+end note
+: App triggers GATT Client request on A;
 if (LTK available?) then (no)
   : GATT Client request sent;
   if (GATT Server returns an ATT_ERROR_INSUFFICIENT_X error?) then (no)
@@ -52,7 +58,7 @@ else (yes)
 endif
 @enduml
 
-PlantUML version 1.2020.22beta2(Unknown compile time)
+PlantUML version 1.2020.22(Sun Dec 06 09:36:27 UTC 2020)
 (GPL source distribution)
 Java Runtime: Java(TM) SE Runtime Environment
 JVM: Java HotSpot(TM) 64-Bit Server VM
diff --git a/doc/manual/docs/picts/gatt_client_security_proactive_authentication_peripheral.svg b/doc/manual/docs/picts/gatt_client_security_proactive_authentication_peripheral.svg
index 735221143..3e4265441 100644
--- a/doc/manual/docs/picts/gatt_client_security_proactive_authentication_peripheral.svg
+++ b/doc/manual/docs/picts/gatt_client_security_proactive_authentication_peripheral.svg
@@ -1,9 +1,15 @@
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textLength="267" x="259" y="355.998">App receives GATT_QUERY_COMPLETE event</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="192" x="271" y="369.9668">with ATT_ERROR_INSUFFICIENT_X</text><ellipse cx="390.5" cy="428.7969" fill="#FFFFFF" filter="url(#f1ityx9v430wbn)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="390.5" cy="428.7969" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="194" x="815.75" y="334.8594"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="170" x="829.75" y="355.998">SM_EVENT_PAIRING_STARTED</text><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="233" x="796.25" y="403.8281"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="209" x="810.25" y="424.9668">SM on A sends SECURITY REQUEST</text><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="279" x="773.25" y="472.7969"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="255" x="787.25" y="493.9355">SM on B should perform pairing sequence</text><polygon fill="#FEFECE" filter="url(#f1ityx9v430wbn)" points="866.25,541.7656,959.25,541.7656,971.25,553.7656,959.25,565.7656,866.25,565.7656,854.25,553.7656,866.25,541.7656" style="stroke:#A80036;stroke-width:1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="93" x="866.25" y="557.5737">pairing success?</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="21" x="833.25" y="551.1714">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="971.25" y="551.1714">no</text><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="352" x="566" y="575.7656"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="328" x="580" y="596.9043">SM_EVENT_PAIRING_COMPLETE(ERROR_CODE_SUCCESS)</text><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="191" x="646.5" y="644.7344"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="660.5" y="665.873">GATT Client request re-sent</text><rect fill="#23DB2B" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="204" x="640" y="712.6719"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="180" x="654" y="733.8105">App receives GATT Response</text><ellipse cx="742" cy="779.6406" fill="#FFFFFF" filter="url(#f1ityx9v430wbn)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="742" cy="779.6406" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="243" x="962" y="575.7656"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="219" x="976" y="596.9043">SM_EVENT_PAIRING_COMPLETE(error)</text><rect fill="#FD5B41" filter="url(#f1ityx9v430wbn)" height="47.9375" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="291" x="938" y="644.7344"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="267" x="952" y="665.873">App receives GATT_QUERY_COMPLETE event</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="192" x="968" y="679.8418">with ATT_ERROR_INSUFFICIENT_X</text><ellipse cx="1083.5" cy="737.6406" fill="#FFFFFF" filter="url(#f1ityx9v430wbn)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="1083.5" cy="737.6406" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="235" x="1510.5" y="212.8906"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="211" x="1524.5" y="234.0293">SM_EVENT_REENCRYPTION_STARTED</text><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" 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style="stroke:#A80036;stroke-width:1.5;" width="204" x="1333.5" y="576.7344"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="180" x="1347.5" y="597.873">App receives GATT Response</text><ellipse cx="1435.5" cy="656.7031" fill="#FFFFFF" filter="url(#f1ityx9v430wbn)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="1435.5" cy="656.7031" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1ityx9v430wbn)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="284" x="1678.5" y="438.7969"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="260" x="1692.5" y="459.9355">SM_EVENT_REENCRYPTION_COMPLETE(error)</text><rect fill="#FD5B41" filter="url(#f1ityx9v430wbn)" height="47.9375" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="337" x="1652" y="507.7656"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="267" x="1666" y="528.9043">App receives GATT_QUERY_COMPLETE event</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="297" x="1682" y="542.873">with ATT_ERROR_BONDING_INFORMATION_MISSING</text><path d="M1851.5,590.7031 L1851.5,614.4023 L1831.5,618.4023 L1851.5,622.4023 L1851.5,646.1016 A0,0 0 0 0 1851.5,646.1016 L2027.5,646.1016 A0,0 0 0 0 2027.5,646.1016 L2027.5,600.7031 L2017.5,590.7031 L1851.5,590.7031 A0,0 0 0 0 1851.5,590.7031 " fill="#FBFB77" filter="url(#f1ityx9v430wbn)" style="stroke:#A80036;stroke-width:1.0;"/><path d="M2017.5,590.7031 L2017.5,600.7031 L2027.5,600.7031 L2017.5,590.7031 " fill="#FBFB77" style="stroke:#A80036;stroke-width:1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="151" x="1857.5" y="607.77">App can delete 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rx="10" ry="10" style="stroke:none;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="119" x="970.6563" y="70.9531"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="95" x="984.6563" y="92.0918">A connects to B</text><path d="M1141.1563,114.9219 L1141.1563,138.6211 L1121.1563,142.6211 L1141.1563,146.6211 L1141.1563,170.3203 A0,0 0 0 0 1141.1563,170.3203 L1366.1563,170.3203 A0,0 0 0 0 1366.1563,170.3203 L1366.1563,124.9219 L1356.1563,114.9219 L1141.1563,114.9219 A0,0 0 0 0 1141.1563,114.9219 " fill="#FBFB77" filter="url(#f1tyzihefeaa12)" style="stroke:#A80036;stroke-width:1.0;"/><path d="M1356.1563,114.9219 L1356.1563,124.9219 L1366.1563,124.9219 L1356.1563,114.9219 " fill="#FBFB77" style="stroke:#A80036;stroke-width:1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" 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textLength="21" x="833.25" y="547.6011">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="971.25" y="547.6011">no</text><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="352" x="566" y="572.1953"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="328" x="580" y="593.334">SM_EVENT_PAIRING_COMPLETE(ERROR_CODE_SUCCESS)</text><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="191" x="646.5" y="641.1641"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="167" x="660.5" y="662.3027">GATT Client request re-sent</text><rect fill="#23DB2B" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="204" x="640" y="709.1016"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="180" x="654" y="730.2402">App receives GATT Response</text><ellipse cx="742" cy="776.0703" fill="#FFFFFF" filter="url(#f1tyzihefeaa12)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="742" cy="776.0703" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="243" x="962" y="572.1953"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="219" x="976" y="593.334">SM_EVENT_PAIRING_COMPLETE(error)</text><rect fill="#FD5B41" filter="url(#f1tyzihefeaa12)" height="47.9375" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="291" x="938" y="641.1641"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="267" x="952" y="662.3027">App receives GATT_QUERY_COMPLETE event</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="192" x="968" y="676.2715">with ATT_ERROR_INSUFFICIENT_X</text><ellipse cx="1083.5" cy="734.0703" fill="#FFFFFF" filter="url(#f1tyzihefeaa12)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="1083.5" cy="734.0703" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="235" x="1560.5" y="278.2891"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="211" x="1574.5" y="299.4277">SM_EVENT_REENCRYPTION_STARTED</text><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="119" x="1618.5" y="332.2578"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="95" x="1632.5" y="353.3965">start encryption</text><polygon fill="#FEFECE" filter="url(#f1tyzihefeaa12)" points="1641,401.2266,1715,401.2266,1727,413.2266,1715,425.2266,1641,425.2266,1629,413.2266,1641,401.2266" style="stroke:#A80036;stroke-width:1.5;"/><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="74" x="1641" y="417.0347">re-encrypted</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="21" x="1608" y="410.6323">yes</text><text fill="#000000" font-family="sans-serif" font-size="11" lengthAdjust="spacingAndGlyphs" textLength="14" x="1727" y="410.6323">no</text><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="393" x="1289" y="435.2266"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="369" x="1303" y="456.3652">SM_EVENT_REENCRYPTION_COMPLETE(ERROR_CODE_SUCCESS)</text><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="173" x="1399" y="504.1953"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="149" x="1413" y="525.334">GATT Client request sent</text><rect fill="#23DB2B" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="204" x="1383.5" y="573.1641"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="180" x="1397.5" y="594.3027">App receives GATT Response</text><ellipse cx="1485.5" cy="653.1328" fill="#FFFFFF" filter="url(#f1tyzihefeaa12)" rx="11" ry="11" style="stroke:#000000;stroke-width:1.0;"/><ellipse cx="1485.5" cy="653.1328" fill="#000000" rx="6" ry="6" style="stroke:#7F7F7F;stroke-width:1.0;"/><rect fill="#FEFECE" filter="url(#f1tyzihefeaa12)" height="33.9688" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="284" x="1728.5" y="435.2266"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="260" x="1742.5" y="456.3652">SM_EVENT_REENCRYPTION_COMPLETE(error)</text><rect fill="#FD5B41" filter="url(#f1tyzihefeaa12)" height="47.9375" rx="12.5" ry="12.5" style="stroke:#A80036;stroke-width:1.5;" width="337" x="1702" y="504.1953"/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="267" x="1716" y="525.334">App receives GATT_QUERY_COMPLETE event</text><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="297" x="1732" y="539.3027">with ATT_ERROR_BONDING_INFORMATION_MISSING</text><path d="M1901.5,587.1328 L1901.5,610.832 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 @startuml
 title Proactive Authentication in Peripheral Role
 start
-: App on B connects to A;
-: App on A triggers GATT Client request;
+: A connects to B;
+: SM checks if LTK available;
+note right
+  SM actions triggered by
+  connection complete
+  (independent from GATT Client)
+end note
+: App triggers GATT Client request on A;
 if (LTK available?) then (no)
   : GATT Client request sent;
   if (GATT Server returns an ATT_ERROR_INSUFFICIENT_X error?) then (no)
@@ -16,8 +22,7 @@ if (LTK available?) then (no)
       stop
     else (yes)
       : SM_EVENT_PAIRING_STARTED;
-      : SM on A sends SECURITY REQUEST;
-      : SM on B should perform pairing sequence;
+      : start pairing;
       if (pairing success?) then (yes)
           : SM_EVENT_PAIRING_COMPLETE(ERROR_CODE_SUCCESS);
           : GATT Client request re-sent;
@@ -33,8 +38,7 @@ if (LTK available?) then (no)
   endif
 else (yes)
    : SM_EVENT_REENCRYPTION_STARTED;
-   : SM on A sends SECURITY REQUEST;
-   : SM on B should encrypt connection if LTK available;
+   : start encryption;
    if (re-encrypted) then (yes)
      : SM_EVENT_REENCRYPTION_COMPLETE(ERROR_CODE_SUCCESS);
      : GATT Client request sent;
@@ -54,7 +58,7 @@ else (yes)
 endif
 @enduml
 
-PlantUML version 1.2020.22beta2(Unknown compile time)
+PlantUML version 1.2020.22(Sun Dec 06 09:36:27 UTC 2020)
 (GPL source distribution)
 Java Runtime: Java(TM) SE Runtime Environment
 JVM: Java HotSpot(TM) 64-Bit Server VM