OpenWrt/LEDE Project

  • Status Unconfirmed
  • Percent Complete
  • Task Type Bug Report
  • Category Base system
  • Assigned To No-one
  • Operating System All
  • Severity Medium
  • Priority Very Low
  • Reported Version openwrt-19.07
  • Due in Version Undecided
  • Due Date Undecided
  • Private
Attached to Project: OpenWrt/LEDE Project
Opened by timur-davletshin - 22.04.2020

FS#3034 - AMD Geode → OpenSSL no HW acceleration for CBC mode

Supply the following if possible:
- System: PC Engines Alix Board 2d13
- Software: 19.07.2-x86-geode-combined-squashfs.img.gz

1. Install openssl utility along with library and optional libopenssl-afalg_sync engine (same problem with libopenssl-devcrypto)

2. HW accelerated encryption is available to kernel:

 cat /proc/crypto | grep geode
 driver       : ecb(geode-aes)
 driver       : cbc-aes-geode
 module       : geode_aes
 driver       : ecb-aes-geode
 module       : geode_aes
 driver       : geode-aes
 module       : geode_aes

3. But OpenSSL cannot use CBC mode and falls back to software encryption

 openssl speed -evp aes-128-cbc -engine afalg -elapsed
 dmesg output is full off:
 Error allocating fallback algo cbc(aes)

4. Using libopenssl-devcrypto instead of libopenssl-afalg_sync produces similar results but can employ ECB mode. AES-128-CBC is not available.


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