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Packet crypto base on ixp425

Packet crypto base on ixp425. 報告人 : 陳澤龍. outline. Architecture lxCryptoAcc Interfaces CCM Operation Flow (AES) 結論. IXP 425 CPU. ★ Reset. Flash. Serial port. Power. mini-PCI slot. LAN port. WAN port. Ixp425. 266/400/533MHz 32 KB data cache 32 KB Instruction cache

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Packet crypto base on ixp425

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  1. Packet crypto base on ixp425 報告人: 陳澤龍

  2. outline • Architecture • lxCryptoAcc Interfaces • CCM Operation Flow (AES) • 結論

  3. IXP 425 CPU ★Reset Flash Serial port Power mini-PCI slot LAN port WAN port Ixp425 266/400/533MHz 32 KB data cache 32 KB Instruction cache 2 KB MINI-data cache

  4. Minicom Serial Reset ixp vim .bash_profile TFTP server Network zImage DHCP server NFS server Mount 硬體與伺服器 Operation system: Monta visita Host: linux

  5. Architecture Library Manager AHB Queue Store pointer to data in SDRAM Crypto function

  6. Interfaces(1/3) • Version 1.5 • Two distinct services: • IPSec-type cryptography protocols. • (3DES,AES(Crypto), SHA-1,MD5(authentication) • 802.11-base WEP. • (ARC 4 stream)

  7. Interfaces(2/3) • Code executing on the Intel XScale core • (utilize by lxCryptoAcc) • Hardware-based acceleration functionality. • (on the NPEs and XScale core)

  8. Interfaces(3/3) • lxQMgr (Manager AHB Queue) • AQM (store pointers to data in SDRAM) • NPE (AES,DES……)

  9. ESP and AH

  10. ESP Dataflow Authentication

  11. AH Dataflow Authentication

  12. CBC MODE

  13. Counter Mode

  14. Cipher packet

  15. 結論 PACKETS Crypto packet IXP425 Access library NPE

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