BR-EDR-Security蓝牙安全机制

《BR-EDR-Security蓝牙安全机制》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、BR/EDRSecuritySolinGuoBR/EDRSecuritySecurityOverview建立基带连接传统认证SSPLinkkey数字比对密码输入OOBEncryption(E0)KaKabKmasterKcAES-keySAFER+HMAC-SHA256AES-CCMBR/EDRSecurityAuthentication(LinkKey)BR/EDRSecurityEncryption(E0)KcaddressclockRANDBR/EDRSecurityCreationoftheLinkKey(Legacy)BR/EDR

2、SecurityKinitKmaster=KinitifbothdevicessendanLMP_unit_keyPDU,themaster'sunitkeywillbethelinkkey.CreationoftheLinkKey(Legacy)BR/EDRSecurityKinitifbothdevicessendanLMP_comb_keyPDU,thelinkkeyshallbecalculatedasdescribedin[PartH]Section3.2onpage1312.CreationoftheLinkKey(Legacy

3、)BR/EDRSecurityKinitifonedevicesendsanLMP_unit_keyPDUandtheotherdevicesendsLMP_comb_key,theunitkeywillbethelinkkey.CreationoftheLinkKey(Legacy)BR/EDRSecuritySecureSimplePairingTherearefivephasesofSecureSimplePairing:•Phase1:Publickeyexchange•Phase2:AuthenticationStage1•Pha

4、se3:AuthenticationStage2•Phase4:Linkkeycalculation•Phase5:LMPAuthenticationandEncryptionBR/EDRSecuritySecureSimplePairingBR/EDRSecuritySecureSimplePairing(PublicKeyExchange)BR/EDRSecuritySecureSimplePairing(AuthenticationStage1)SecureSimplePairingNumericComparisonProtocolP

5、asskeyEntryProtocolOutofBandProtocolLinkKeyKcAuthentication(Device)Authentication(Linkkey)AES-keyE0AES-CCMBR/EDRSecuritySecureSimplePairing(AuthenticationStage1)SecureSimplePairingNumericComparisonProtocolPasskeyEntryProtocolOutofBandProtocolAuthentication(Device)BR/EDRSec

6、urityAuthenticationStage1(NumericComparisonProtocol)BR/EDRSecurityAuthenticationStage1(OutofBandProtocol)BR/EDRSecurityAuthenticationStage1(PasskeyEntryProtocol)BR/EDRSecurityAuthenticationStage2BR/EDRSecurityLinkkeycalculationLMPAuthenticationandEncryptionBR/EDRSecuritySe

7、cureConnectionsBR/EDRSecurityMessageSequenceCharts(SSP)BR/EDRSecurityMessageSequenceCharts(SSP)