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This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig standard library. Public Type Function

SipHash128

Public Type Function
std.crypto.siphash.SipHash128
pub fn SipHash128(comptime c_rounds: usize, comptime d_rounds: usize) type

SipHash function with 128-bit output.

Recommended parameters are:

  • (c_rounds=4, d_rounds=8) for conservative security; regular hash functions such as BLAKE2 or BLAKE3 are usually a better alternative.
  • (c_rounds=2, d_rounds=4) standard parameters.
  • (c_rounds=1, d_rounds=4) reduced-round function. Recommended to hash very short, similar strings, when a 128-bit PRF output is still required.
  • (c_rounds=1, d_rounds=3) reduced-round function. Faster, no known implications on its practical security level.
  • (c_rounds=1, d_rounds=2) fastest option, but the output may be distinguishable from random data with related keys or non-uniform input - not suitable as a PRF.

SipHash is not a traditional hash function. If the input includes untrusted content, a secret key is absolutely necessary.

File

crypto/siphash.zig:39
39
40
41
pub fn SipHash128(comptime c_rounds: usize, comptime d_rounds: usize) type {
    return SipHash(u128, c_rounds, d_rounds);
}