432042e25e33d0db9c12bbe4ee3fa234d3b061af - net/rxrpc: Reimplement DES-PCBC using DES library

Fri, 22 May 2026 07:07:34 +0200

net/rxrpc: Reimplement DES-PCBC using DES librarySince the use of "pcbc(des)" in rxkad_decrypt_ticket() is the onlyremaining user of the crypto API "pcbc" template, just implementDES-PCBC by locally implementing PCBC mode on top of the DES library.Note that only the decryption direction is needed.This will allow support for the obsolete PCBC mode to be removed fromthe crypto API.Acked-by: David Howells Signed-off-by: Eric Biggers Tested-by: Marc Dionne Link: https://patch.msgid.link/20260522050740.84561-4-ebiggers@kernel.orgSigned-off-by: Jakub Kicinski List of files: /linux/net/rxrpc/tests/rxrpc_kunit.c

f10e73dffd2abf51c5ba6f5dc724a0df690cd783 - net/rxrpc: Add local FCrypt-PCBC implementation

Fri, 22 May 2026 07:07:32 +0200

net/rxrpc: Add local FCrypt-PCBC implementationAdd a local implementation of FCrypt-PCBC encryption and decryption.This will be used instead of the crypto API one, allowing the crypto APIone to be removed. It will also simplify rxkad.c quite a bit.A KUnit test is included. The FCrypt-PCBC test vectors are borrowedfrom the existing ones in crypto/testmgr.h. Note that this adds thefirst KUnit test for net/rxrpc/, which previously had no KUnit tests.The FCrypt code is based on crypto/fcrypt.c, but I simplified it a bit.The PCBC part is straightforward and I just wrote it from scratch.Tested with: kunit.py run --kunitconfig net/rxrpc/Acked-by: David Howells Signed-off-by: Eric Biggers Tested-by: Marc Dionne Link: https://patch.msgid.link/20260522050740.84561-2-ebiggers@kernel.orgSigned-off-by: Jakub Kicinski List of files: /linux/net/rxrpc/tests/rxrpc_kunit.c

Changes in rxrpc_kunit.c

432042e25e33d0db9c12bbe4ee3fa234d3b061af - net/rxrpc: Reimplement DES-PCBC using DES library

f10e73dffd2abf51c5ba6f5dc724a0df690cd783 - net/rxrpc: Add local FCrypt-PCBC implementation