On 11.07.2013 16:18, Andre Oppermann wrote:
Author: andre
Date: Thu Jul 11 14:18:38 2013
New Revision: 253208
URL: http://svnweb.freebsd.org/changeset/base/253208

Log:
   SipHash is a cryptographically strong pseudo-random function (a.k.a. keyed
   hash function) optimized for speed on short messages returning a 64bit hash/
   digest value.
...
   The number of update/finalization rounds is defined during initialization:

    SipHash24_Init() for the fast and reasonable strong version.
    SipHash48_Init() for the strong version (half as fast).

   SipHash usage is similar to other hash functions:

    struct SIPHASH_CTX ctx;
    char *k = "16bytes long key"
    char *s = "string";
    uint64_t h = 0;
    SipHash24_Init(&ctx);
    SipHash_SetKey(&ctx, k);
    SipHash_Update(&ctx, s, strlen(s));
    SipHash_Final(&h, &ctx);  /* or */
    h = SipHash_End(&ctx);    /* or */
    h = SipHash24(&ctx, k, s, strlen(s));

Looking for a man page whiz to hack one up. :)

--
Andre

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