Pin code is used in the endian mode of the processor (#5726) (#5730)

project-chip · Mar 31, 2021 · 3c345cd · 3c345cd
1 parent a2d7cbe
commit 3c345cd
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/transport/PASESession.cpp b/src/transport/PASESession.cpp
@@ -196,7 +196,10 @@ CHIP_ERROR PASESession::Init(uint16_t myKeyId, uint32_t setupCode, SessionEstabl
 CHIP_ERROR PASESession::ComputePASEVerifier(uint32_t setUpPINCode, uint32_t pbkdf2IterCount, const uint8_t * salt, size_t saltLen,
                                             PASEVerifier & verifier)
 {
-    return pbkdf2_sha256(reinterpret_cast<const uint8_t *>(&setUpPINCode), sizeof(setUpPINCode), salt, saltLen, pbkdf2IterCount,
+    uint8_t littleEndianSetupPINCode[sizeof(uint32_t)];
+    Encoding::LittleEndian::Put32(littleEndianSetupPINCode, setUpPINCode);
+
+    return pbkdf2_sha256(littleEndianSetupPINCode, sizeof(littleEndianSetupPINCode), salt, saltLen, pbkdf2IterCount,
                          sizeof(PASEVerifier), &verifier[0][0]);
 }