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@schmee
Last active January 12, 2020 11:16
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DES
cat /dev/urandom | head -c300000000 > random_test_data.bin
➜ zig-crypto git:(new-api) ✗ time openssl enc -des-ecb -in random_test_data.bin -out enc.bin -K 133457799BBCDFF1 -nopad
openssl enc -des-ecb -in src/random_test_data.bin -out enc.bin -K -nopad 3.59s user 0.41s system 95% cpu 4.195 total
➜ zig-crypto git:(new-api) ✗ zig build-exe main.zig --release-fast --main-pkg-path . && time ./des
78
./des 3.52s user 0.21s system 99% cpu 3.741 total
pub fn main() !void {
var keyLong: u64 = 0x133457799BBCDFF1;
var keyBytes = mem.asBytes(&keyLong);
mem.reverse(u8, keyBytes);
const cipher = DES.init(keyBytes.*);
var allocator = std.heap.page_allocator;
const source = try std.fs.cwd().readFileAlloc(allocator, "src/random_test_data.bin", 1000 * 1000 * 1000 * 1000);
defer allocator.free(source);
var dest = try allocator.alloc(u8, source.len);
defer allocator.free(dest);
{
var i: usize = 0;
while (i < source.len) : (i += block_size) {
cipher.crypt(.Encrypt, dest[i..(i + block_size)], source[i..(i + block_size)]);
}
}
std.debug.warn("{}\n", .{dest[dest.len - 1]});
}
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