Eric Lee / smarc-fsl-linux-kernel

24 Nov, 2014

1 commit

14 Jun, 2012

2 commits

  • d366db605   crypto: arc4 - improve performance by using u32 for ctx and variables ... Browse Code »

    This patch changes u8 in struct arc4_ctx and variables to u32 (as AMD seems
    to have problem with u8 array). Below are tcrypt results of old 1-byte block
    cipher versus ecb(arc4) with u8 and ecb(arc4) with u32.

    tcrypt results, x86-64 (speed ratios: new-u32/old, new-u8/old):

    u32 u8
    AMD Phenom II : x3.6 x2.7
    Intel Core 2 : x2.0 x1.9

    tcrypt results, i386 (speed ratios: new-u32/old, new-u8/old):

    u32 u8
    Intel Atom N260 : x1.5 x1.4

    Cc: Jon Oberheide
    Signed-off-by: Jussi Kivilinna
    Signed-off-by: Herbert Xu

    Jussi Kivilinna
     
  • ce6dd3689   crypto: arc4 - improve performance by adding ecb(arc4) ... Browse Code »
    43

    Currently arc4.c provides simple one-byte blocksize cipher which is wrapped
    by ecb() module, giving function call overhead on every encrypted byte. This
    patch adds ecb(arc4) directly into arc4.c for higher performance.

    tcrypt results (speed ratios: new/old):

    AMD Phenom II, x86-64 : x2.7
    Intel Core 2, x86-64 : x1.9
    Intel Atom N260, i386 : x1.4

    Cc: Jon Oberheide
    Signed-off-by: Jussi Kivilinna
    Signed-off-by: Herbert Xu

    Jussi Kivilinna
     

30 Jun, 2011

1 commit

21 Sep, 2006

1 commit

  • 560c06ae1   [CRYPTO] api: Get rid of flags argument to setkey ... Browse Code »

    Now that the tfm is passed directly to setkey instead of the ctx, we no
    longer need to pass the &tfm->crt_flags pointer.

    This patch also gets rid of a few unnecessary checks on the key length
    for ciphers as the cipher layer guarantees that the key length is within
    the bounds specified by the algorithm.

    Rather than testing dia_setkey every time, this patch does it only once
    during crypto_alloc_tfm. The redundant check from crypto_digest_setkey
    is also removed.

    Signed-off-by: Herbert Xu

    Herbert Xu
     

26 Jun, 2006

1 commit

  • 6c2bb98bc   [CRYPTO] all: Pass tfm instead of ctx to algorithms ... Browse Code »

    Up until now algorithms have been happy to get a context pointer since
    they know everything that's in the tfm already (e.g., alignment, block
    size).

    However, once we have parameterised algorithms, such information will
    be specific to each tfm. So the algorithm API needs to be changed to
    pass the tfm structure instead of the context pointer.

    This patch is basically a text substitution. The only tricky bit is
    the assembly routines that need to get the context pointer offset
    through asm-offsets.h.

    Signed-off-by: Herbert Xu

    Herbert Xu
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds