Zig 0.17.0-dev (Split by item)

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processBlockGeneric

argon2.processBlockGeneric

fn processBlockGeneric(
    out: *[block_length]u64,
    in1: *const [block_length]u64,
    in2: *const [block_length]u64,
    comptime xor: bool,
) void

File

lib/std/crypto/argon2.zig:345

Code

fn processBlockGeneric(
    out: *[block_length]u64,
    in1: *const [block_length]u64,
    in2: *const [block_length]u64,
    comptime xor: bool,
) void {
    var t: [block_length]u64 = undefined;
    for (&t, 0..) |*v, i| {
        v.* = in1[i] ^ in2[i];
    }
    var i: usize = 0;
    while (i < block_length) : (i += 16) {
        blamkaGeneric(t[i..][0..16]);
    }
    i = 0;
    var buffer: [16]u64 = undefined;
    while (i < block_length / 8) : (i += 2) {
        var j: usize = 0;
        while (j < block_length / 8) : (j += 2) {
            buffer[j] = t[j * 8 + i];
            buffer[j + 1] = t[j * 8 + i + 1];
        }
        blamkaGeneric(&buffer);
        j = 0;
        while (j < block_length / 8) : (j += 2) {
            t[j * 8 + i] = buffer[j];
            t[j * 8 + i + 1] = buffer[j + 1];
        }
    }
    if (xor) {
        for (t, 0..) |v, j| {
            out[j] ^= in1[j] ^ in2[j] ^ v;
        }
    } else {
        for (t, 0..) |v, j| {
            out[j] = in1[j] ^ in2[j] ^ v;
        }
    }
}