2016-02-14 11:00:28 +01:00
|
|
|
module chacha20;
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
private:
|
|
|
|
|
|
|
|
|
|
import std.string : format;
|
|
|
|
|
import std.range : isInputRange, isForwardRange, ElementType;
|
|
|
|
|
import std.array;
|
|
|
|
|
|
|
|
|
|
import bitmanip;
|
|
|
|
|
import utility;
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-02-14 12:01:00 +01:00
|
|
|
|
2016-02-14 11:00:28 +01:00
|
|
|
public:
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
// TODO: Implement random access
|
|
|
|
|
|
2016-02-14 11:00:28 +01:00
|
|
|
auto chacha20Cipher(R)(R range, ubyte[32] key, ubyte[8] nonce)
|
2016-02-28 14:25:58 +01:00
|
|
|
if (isInputRange!R && is(ElementType!R : ubyte))
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
2016-06-04 11:30:26 +02:00
|
|
|
struct rangeResult
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
|
|
|
|
private:
|
|
|
|
|
ulong count;
|
|
|
|
|
R range;
|
2016-07-06 02:00:03 +02:00
|
|
|
ubyte[64] chachaSection;
|
|
|
|
|
uint chachaCounter;
|
2016-02-14 11:00:28 +01:00
|
|
|
public:
|
|
|
|
|
bool empty() @property
|
|
|
|
|
{
|
2016-07-06 02:00:03 +02:00
|
|
|
return range.empty || (count == ulong.max && chachaCounter == 64);
|
2016-02-14 11:00:28 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ubyte front() @property
|
|
|
|
|
{
|
|
|
|
|
assert(!empty);
|
2016-07-06 02:00:03 +02:00
|
|
|
return range.front ^ chachaSection[chachaCounter];
|
2016-02-14 11:00:28 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void popFront()
|
|
|
|
|
{
|
|
|
|
|
assert(!empty);
|
2016-07-06 02:00:03 +02:00
|
|
|
if (++chachaCounter == 64)
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
2016-07-06 02:00:03 +02:00
|
|
|
chachaSection = chacha20Exp(key, concat!(ubyte[16])(nonce, littleEndianInv(++count)));
|
2016-07-31 17:49:42 +02:00
|
|
|
chachaCounter = 0;
|
2016-02-14 11:00:28 +01:00
|
|
|
}
|
|
|
|
|
range.popFront();
|
|
|
|
|
}
|
2016-02-17 02:39:40 +01:00
|
|
|
static if (isForwardRange!R)
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
|
|
|
|
auto save() @property
|
|
|
|
|
{
|
2016-07-25 11:13:18 +02:00
|
|
|
return rangeResult(count, range.save, chachaSection, chachaCounter);
|
2016-02-14 11:00:28 +01:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
2016-07-06 02:00:03 +02:00
|
|
|
return rangeResult(0UL, range, chacha20Exp(key, concat!(ubyte[16])(nonce, littleEndianInv(0UL))));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// TODO: Create more unittests!!!
|
|
|
|
|
|
|
|
|
|
@safe unittest
|
|
|
|
|
{
|
2016-07-31 17:49:42 +02:00
|
|
|
ubyte[] test1 = new ubyte[64];
|
|
|
|
|
ubyte[32] key1;
|
|
|
|
|
ubyte[8] nonce1;
|
|
|
|
|
test1 = test1.chacha20Cipher(key1, nonce1).array;
|
|
|
|
|
assert(test1 == [118,184,224,173,160,241, 61,144, 64, 93,106,229, 83,134,189, 40,
|
|
|
|
|
189,210, 25,184,160,141,237, 26,168, 54,239,204,139,119, 13,199,
|
|
|
|
|
218, 65, 89,124, 81, 87, 72,141,119, 36,224, 63,184,216, 74, 55,
|
|
|
|
|
106, 67,184,244, 21, 24,161, 28,195,135,182,105,178,238,101,134]);
|
2016-02-14 11:00:28 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
|
|
|
|
|
enum string quarterRound(alias _x0, alias _x1, alias _x2, alias _x3) = q{
|
|
|
|
|
%1$s += %2$s; %4$s ^= %1$s; %4$s = rotateLeft(%4$s, 16);
|
|
|
|
|
%3$s += %4$s; %2$s ^= %3$s; %2$s = rotateLeft(%2$s, 12);
|
|
|
|
|
%1$s += %2$s; %4$s ^= %1$s; %4$s = rotateLeft(%4$s, 8);
|
|
|
|
|
%3$s += %4$s; %2$s ^= %3$s; %2$s = rotateLeft(%2$s, 7);
|
|
|
|
|
}.format(__traits(identifier, _x0), __traits(identifier, _x1),
|
|
|
|
|
__traits(identifier, _x2), __traits(identifier, _x3));
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
@safe unittest
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
|
|
|
|
uint a1 = 0x00000000, a2 = 0x00000000, a3 = 0x00000000, a4 = 0x00000000,
|
|
|
|
|
b1 = 0x00000001, b2 = 0x00000000, b3 = 0x00000000, b4 = 0x00000000,
|
|
|
|
|
c1 = 0x00000000, c2 = 0x00000001, c3 = 0x00000000, c4 = 0x00000000,
|
|
|
|
|
d1 = 0x00000000, d2 = 0x00000000, d3 = 0x00000001, d4 = 0x00000000,
|
|
|
|
|
e1 = 0x00000000, e2 = 0x00000000, e3 = 0x00000000, e4 = 0x00000001,
|
|
|
|
|
f1 = 0xe7e8c006, f2 = 0xc4f9417d, f3 = 0x6479b4b2, f4 = 0x68c67137,
|
|
|
|
|
g1 = 0xd3917c5b, g2 = 0x55f1c407, g3 = 0x52a58a7a, g4 = 0x8f887a3b;
|
|
|
|
|
|
|
|
|
|
mixin(quarterRound!(a1, a2, a3, a4));
|
|
|
|
|
mixin(quarterRound!(b1, b2, b3, b4));
|
|
|
|
|
mixin(quarterRound!(c1, c2, c3, c4));
|
|
|
|
|
mixin(quarterRound!(d1, d2, d3, d4));
|
|
|
|
|
mixin(quarterRound!(e1, e2, e3, e4));
|
|
|
|
|
mixin(quarterRound!(f1, f2, f3, f4));
|
|
|
|
|
mixin(quarterRound!(g1, g2, g3, g4));
|
|
|
|
|
|
|
|
|
|
assert([a1, a2, a3, a4] == [0x00000000, 0x00000000, 0x00000000, 0x00000000]);
|
2016-02-28 13:38:27 +01:00
|
|
|
assert([b1, b2, b3, b4] == [0x10000001, 0x80808808, 0x01010110, 0x01000110]);
|
|
|
|
|
assert([c1, c2, c3, c4] == [0x10001001, 0x88888808, 0x01110110, 0x01100110]);
|
|
|
|
|
assert([d1, d2, d3, d4] == [0x00001000, 0x08080080, 0x00100001, 0x00100000]);
|
|
|
|
|
assert([e1, e2, e3, e4] == [0x10000000, 0x80800808, 0x01010010, 0x01000010]);
|
|
|
|
|
assert([f1, f2, f3, f4] == [0x207cb2a0, 0x1f261df7, 0x9da4fd26, 0xc8768450]);
|
|
|
|
|
assert([g1, g2, g3, g4] == [0x18cb6df2, 0x41821bf8, 0x1fcb29a7, 0x92cbf922]);
|
|
|
|
|
}
|
2016-02-14 11:00:28 +01:00
|
|
|
|
|
|
|
|
enum string rowRound(alias _x00, alias _x01, alias _x02, alias _x03,
|
|
|
|
|
alias _x04, alias _x05, alias _x06, alias _x07,
|
|
|
|
|
alias _x08, alias _x09, alias _x10, alias _x11,
|
|
|
|
|
alias _x12, alias _x13, alias _x14, alias _x15,) = q{
|
|
|
|
|
mixin(quarterRound!(%1$s, %6$s, %11$s, %16$s));
|
|
|
|
|
mixin(quarterRound!(%2$s, %7$s, %12$s, %13$s));
|
|
|
|
|
mixin(quarterRound!(%3$s, %8$s, %9$s, %14$s));
|
|
|
|
|
mixin(quarterRound!(%4$s, %5$s, %10$s, %15$s));
|
|
|
|
|
}.format(__traits(identifier, _x00), __traits(identifier, _x01),
|
|
|
|
|
__traits(identifier, _x02), __traits(identifier, _x03),
|
|
|
|
|
__traits(identifier, _x04), __traits(identifier, _x05),
|
|
|
|
|
__traits(identifier, _x06), __traits(identifier, _x07),
|
|
|
|
|
__traits(identifier, _x08), __traits(identifier, _x09),
|
|
|
|
|
__traits(identifier, _x10), __traits(identifier, _x11),
|
|
|
|
|
__traits(identifier, _x12), __traits(identifier, _x13),
|
|
|
|
|
__traits(identifier, _x14), __traits(identifier, _x15));
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
@safe unittest
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
|
|
|
|
uint y00 = 0x00000001, y01 = 0x00000000, y02 = 0x00000000, y03 = 0x00000000,
|
|
|
|
|
y04 = 0x00000001, y05 = 0x00000000, y06 = 0x00000000, y07 = 0x00000000,
|
|
|
|
|
y08 = 0x00000001, y09 = 0x00000000, y10 = 0x00000000, y11 = 0x00000000,
|
|
|
|
|
y12 = 0x00000001, y13 = 0x00000000, y14 = 0x00000000, y15 = 0x00000000;
|
|
|
|
|
|
|
|
|
|
uint x00 = 0x08521bd6, x01 = 0x1fe88837, x02 = 0xbb2aa576, x03 = 0x3aa26365,
|
|
|
|
|
x04 = 0xc54c6a5b, x05 = 0x2fc74c2f, x06 = 0x6dd39cc3, x07 = 0xda0a64f6,
|
|
|
|
|
x08 = 0x90a2f23d, x09 = 0x067f95a6, x10 = 0x06b35f61, x11 = 0x41e4732e,
|
|
|
|
|
x12 = 0xe859c100, x13 = 0xea4d84b7, x14 = 0x0f619bff, x15 = 0xbc6e965a;
|
|
|
|
|
|
|
|
|
|
mixin(rowRound!(y00, y01, y02, y03, y04, y05, y06, y07,
|
2016-02-28 14:25:58 +01:00
|
|
|
y08, y09, y10, y11, y12, y13, y14, y15));
|
2016-02-14 11:00:28 +01:00
|
|
|
|
|
|
|
|
mixin(rowRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
2016-02-28 14:25:58 +01:00
|
|
|
x08, x09, x10, x11, x12, x13, x14, x15));
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
immutable uint[16] test0 = [y00, y01, y02, y03, y04, y05, y06, y07,
|
|
|
|
|
y08, y09, y10, y11, y12, y13, y14, y15];
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
immutable uint[16] test1 = [x00, x01, x02, x03, x04, x05, x06, x07,
|
|
|
|
|
x08, x09, x10, x11, x12, x13, x14, x15];
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-02-28 13:38:27 +01:00
|
|
|
assert(test0 == [0x10000001, 0x10000000, 0x00001000, 0x10001001,
|
2016-02-28 14:25:58 +01:00
|
|
|
0x88888808, 0x80808808, 0x80800808, 0x08080080,
|
|
|
|
|
0x00100001, 0x01110110, 0x01010110, 0x01010010,
|
|
|
|
|
0x01000010, 0x00100000, 0x01100110, 0x01000110]);
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-02-28 13:38:27 +01:00
|
|
|
assert(test1 == [0x9318dab2, 0x6219299a, 0xd68946c3, 0x3eb5b75f,
|
|
|
|
|
0xe0df816c, 0x476df40b, 0xbb2e1d6f, 0x7608ad18,
|
|
|
|
|
0x71b82d0d, 0xe707569d, 0x4c71a945, 0x0b2b589a,
|
|
|
|
|
0xe34c7f87, 0x5239bb58, 0x8a47d068, 0x475ec56d]);
|
|
|
|
|
}
|
2016-02-14 11:00:28 +01:00
|
|
|
|
|
|
|
|
enum string colRound(alias _x00, alias _x01, alias _x02, alias _x03,
|
|
|
|
|
alias _x04, alias _x05, alias _x06, alias _x07,
|
|
|
|
|
alias _x08, alias _x09, alias _x10, alias _x11,
|
|
|
|
|
alias _x12, alias _x13, alias _x14, alias _x15,) = q{
|
|
|
|
|
mixin(quarterRound!(%1$s, %5$s, %9$s, %13$s));
|
|
|
|
|
mixin(quarterRound!(%2$s, %6$s, %10$s, %14$s));
|
|
|
|
|
mixin(quarterRound!(%3$s, %7$s, %11$s, %15$s));
|
|
|
|
|
mixin(quarterRound!(%4$s, %8$s, %12$s, %16$s));
|
|
|
|
|
}.format(__traits(identifier, _x00), __traits(identifier, _x01),
|
|
|
|
|
__traits(identifier, _x02), __traits(identifier, _x03),
|
|
|
|
|
__traits(identifier, _x04), __traits(identifier, _x05),
|
|
|
|
|
__traits(identifier, _x06), __traits(identifier, _x07),
|
|
|
|
|
__traits(identifier, _x08), __traits(identifier, _x09),
|
|
|
|
|
__traits(identifier, _x10), __traits(identifier, _x11),
|
|
|
|
|
__traits(identifier, _x12), __traits(identifier, _x13),
|
|
|
|
|
__traits(identifier, _x14), __traits(identifier, _x15));
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
@safe unittest{
|
2016-02-14 11:00:28 +01:00
|
|
|
uint y00 = 0x00000001, y01 = 0x00000000, y02 = 0x00000000, y03 = 0x00000000,
|
|
|
|
|
y04 = 0x00000001, y05 = 0x00000000, y06 = 0x00000000, y07 = 0x00000000,
|
|
|
|
|
y08 = 0x00000001, y09 = 0x00000000, y10 = 0x00000000, y11 = 0x00000000,
|
|
|
|
|
y12 = 0x00000001, y13 = 0x00000000, y14 = 0x00000000, y15 = 0x00000000;
|
|
|
|
|
|
|
|
|
|
uint x00 = 0x08521bd6, x01 = 0x1fe88837, x02 = 0xbb2aa576, x03 = 0x3aa26365,
|
|
|
|
|
x04 = 0xc54c6a5b, x05 = 0x2fc74c2f, x06 = 0x6dd39cc3, x07 = 0xda0a64f6,
|
|
|
|
|
x08 = 0x90a2f23d, x09 = 0x067f95a6, x10 = 0x06b35f61, x11 = 0x41e4732e,
|
|
|
|
|
x12 = 0xe859c100, x13 = 0xea4d84b7, x14 = 0x0f619bff, x15 = 0xbc6e965a;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
mixin(colRound!(y00, y01, y02, y03, y04, y05, y06, y07,
|
|
|
|
|
y08, y09, y10, y11, y12, y13, y14, y15));
|
|
|
|
|
|
|
|
|
|
mixin(colRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
|
|
|
|
x08, x09, x10, x11, x12, x13, x14, x15));
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
immutable uint[16] test0 = [y00, y01, y02, y03, y04, y05, y06, y07,
|
|
|
|
|
y08, y09, y10, y11, y12, y13, y14, y15];
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
immutable uint[16] test1 = [x00, x01, x02, x03, x04, x05, x06, x07,
|
|
|
|
|
x08, x09, x10, x11, x12, x13, x14, x15];
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-02-28 13:38:27 +01:00
|
|
|
assert(test0 == [0x30000002, 0x00000000, 0x00000000, 0x00000000,
|
|
|
|
|
0x81811899, 0x00000000, 0x00000000, 0x00000000,
|
|
|
|
|
0x03030231, 0x00000000, 0x00000000, 0x00000000,
|
|
|
|
|
0x03000230, 0x00000000, 0x00000000, 0x00000000]);
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-02-28 13:38:27 +01:00
|
|
|
assert(test1 == [0x54c4775a, 0xb72a4bef, 0xcaba7b13, 0xdc9d2cb9,
|
|
|
|
|
0x01a21f25, 0x229f731a, 0xb515e4fe, 0xcd79967d,
|
|
|
|
|
0xcd26b517, 0x533f496f, 0x5cd61313, 0x3c6a9772,
|
|
|
|
|
0xf5529d13, 0xfbee0de7, 0x7c5c8c13, 0x9c847b82]);
|
|
|
|
|
}
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
ubyte[64] chacha20(in ubyte[64] input) @safe nothrow pure @nogc
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
2016-02-28 14:25:58 +01:00
|
|
|
auto x00 = littleEndian(input[00..04]), x01 = littleEndian(input[04..08]),
|
|
|
|
|
x02 = littleEndian(input[08..12]), x03 = littleEndian(input[12..16]),
|
2016-02-14 11:00:28 +01:00
|
|
|
x04 = littleEndian(input[16..20]), x05 = littleEndian(input[20..24]),
|
|
|
|
|
x06 = littleEndian(input[24..28]), x07 = littleEndian(input[28..32]),
|
|
|
|
|
x08 = littleEndian(input[32..36]), x09 = littleEndian(input[36..40]),
|
|
|
|
|
x10 = littleEndian(input[40..44]), x11 = littleEndian(input[44..48]),
|
|
|
|
|
x12 = littleEndian(input[48..52]), x13 = littleEndian(input[52..56]),
|
|
|
|
|
x14 = littleEndian(input[56..60]), x15 = littleEndian(input[60..64]);
|
|
|
|
|
|
|
|
|
|
auto y00 = x00, y01 = x01, y02 = x02, y03 = x03,
|
|
|
|
|
y04 = x04, y05 = x05, y06 = x06, y07 = x07,
|
|
|
|
|
y08 = x08, y09 = x09, y10 = x10, y11 = x11,
|
|
|
|
|
y12 = x12, y13 = x13, y14 = x14, y15 = x15;
|
|
|
|
|
|
2016-02-28 14:25:58 +01:00
|
|
|
foreach (i; 0..10)
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
|
|
|
|
mixin(colRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
|
|
|
|
x08, x09, x10, x11, x12, x13, x14, x15));
|
|
|
|
|
|
|
|
|
|
mixin(rowRound!(x00, x01, x02, x03, x04, x05, x06, x07,
|
|
|
|
|
x08, x09, x10, x11, x12, x13, x14, x15));
|
|
|
|
|
}
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
return concat!(ubyte[64])(littleEndianInv(x00 + y00),
|
|
|
|
|
littleEndianInv(x01 + y01),
|
|
|
|
|
littleEndianInv(x02 + y02),
|
|
|
|
|
littleEndianInv(x03 + y03),
|
|
|
|
|
littleEndianInv(x04 + y04),
|
|
|
|
|
littleEndianInv(x05 + y05),
|
|
|
|
|
littleEndianInv(x06 + y06),
|
|
|
|
|
littleEndianInv(x07 + y07),
|
|
|
|
|
littleEndianInv(x08 + y08),
|
|
|
|
|
littleEndianInv(x09 + y09),
|
|
|
|
|
littleEndianInv(x10 + y10),
|
|
|
|
|
littleEndianInv(x11 + y11),
|
|
|
|
|
littleEndianInv(x12 + y12),
|
|
|
|
|
littleEndianInv(x13 + y13),
|
|
|
|
|
littleEndianInv(x14 + y14),
|
|
|
|
|
littleEndianInv(x15 + y15));
|
2016-02-14 11:00:28 +01:00
|
|
|
}
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
@safe unittest
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
2016-07-06 02:00:03 +02:00
|
|
|
ubyte[64] test0 = [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
|
2016-02-16 20:49:02 +01:00
|
|
|
test0 = chacha20(test0);
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
ubyte[64] test1 = [211,159, 13,115, 76, 55, 82,183, 3,117,222, 37,191,187,234,136,
|
|
|
|
|
49,237,179, 48, 1,106,178,219,175,199,166, 48, 86, 16,179,207,
|
|
|
|
|
31,240, 32, 63, 15, 83, 93,161,116,147, 48,113,238, 55,204, 36,
|
|
|
|
|
79,201,235, 79, 3, 81,156, 47,203, 26,244,243, 88,118,104, 54];
|
2016-02-16 20:49:02 +01:00
|
|
|
test1 = chacha20(test1);
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
ubyte[64] test2 = [ 88,118,104, 54, 79,201,235, 79, 3, 81,156, 47,203, 26,244,243,
|
|
|
|
|
191,187,234,136,211,159, 13,115, 76, 55, 82,183, 3,117,222, 37,
|
|
|
|
|
86, 16,179,207, 49,237,179, 48, 1,106,178,219,175,199,166, 48,
|
|
|
|
|
238, 55,204, 36, 31,240, 32, 63, 15, 83, 93,161,116,147, 48,113];
|
2016-02-16 20:49:02 +01:00
|
|
|
test2 = chacha20(test2);
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
ubyte[64] test3 = [ 6,124, 83,146, 38,191, 9, 50, 4,161, 47,222,122,182,223,185,
|
|
|
|
|
75, 27, 0,216, 16,122, 7, 89,162,104,101,147,213, 21, 54, 95,
|
|
|
|
|
225,253,139,176,105,132, 23,116, 76, 41,176,207,221, 34,157,108,
|
|
|
|
|
94, 94, 99, 52, 90,117, 91,220,146,190,239,143,196,176,130,186];
|
|
|
|
|
foreach (i; 0..1_000_000)
|
2016-02-16 20:49:02 +01:00
|
|
|
test3 = chacha20(test3);
|
2016-02-14 11:00:28 +01:00
|
|
|
|
|
|
|
|
assert(test0 == [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
|
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
|
|
|
|
|
|
2016-02-28 13:38:27 +01:00
|
|
|
assert(test1 == [ 19,135,149, 14, 40,180,217,109,187,122,124,114, 23, 14,107,241,
|
|
|
|
|
231, 18, 85,210, 56,159, 57,224, 96, 71, 85,167,202,180, 98, 96,
|
|
|
|
|
185, 76, 56,161,168,230,132,189, 84, 59, 55,254, 39, 21, 41,153,
|
|
|
|
|
144,151, 5,208,189, 9,140, 64,226,151,219, 26, 80,221,237,194]);
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-02-28 13:38:27 +01:00
|
|
|
assert(test2 == [ 76, 1, 30, 79,130,234,169,252,194, 25,110,243,141, 64, 68,140,
|
|
|
|
|
106, 32,248,152,219, 73,115,133, 10,143, 99,162, 72,155,138, 55,
|
|
|
|
|
58,214, 79, 49, 97, 63,201,155,178,203, 15, 94, 66,224,216,184,
|
|
|
|
|
64, 85,186,170, 65, 79, 11, 91, 22,247,191, 72, 68,250,229,108]);
|
|
|
|
|
|
|
|
|
|
assert(test3 == [ 88, 97,168, 54,215,192,249,115,185,160,231, 86,203,147, 27, 34,
|
|
|
|
|
237,252,228, 40, 1,135,107, 88,160,239, 5,182,250, 16,217,224,
|
|
|
|
|
101, 27,113, 5, 50,192, 52, 70, 7,110,217, 10, 3,226, 85,129,
|
|
|
|
|
29,214,235,224, 96, 42, 55, 53,188, 35, 81,171, 81,218,221, 44]);
|
|
|
|
|
}
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
static immutable ubyte[4] sigma0 = [101, 120, 112, 97];
|
|
|
|
|
static immutable ubyte[4] sigma1 = [110, 100, 32, 51];
|
|
|
|
|
static immutable ubyte[4] sigma2 = [ 50, 45, 98, 121];
|
|
|
|
|
static immutable ubyte[4] sigma3 = [116, 101, 32, 107];
|
|
|
|
|
|
|
|
|
|
ubyte[64] chacha20Exp(in ubyte[32] key, in ubyte[16] n) @safe pure nothrow @nogc
|
2016-02-14 11:00:28 +01:00
|
|
|
|
|
|
|
|
{
|
2016-07-06 02:00:03 +02:00
|
|
|
return chacha20(concat!(ubyte[64])(sigma0,
|
2016-07-31 17:49:42 +02:00
|
|
|
sigma1,
|
|
|
|
|
sigma2,
|
|
|
|
|
sigma3,
|
|
|
|
|
key,
|
2016-07-31 17:52:01 +02:00
|
|
|
n));
|
2016-02-14 11:00:28 +01:00
|
|
|
}
|
|
|
|
|
|
2016-07-06 02:00:03 +02:00
|
|
|
@safe unittest
|
2016-02-14 11:00:28 +01:00
|
|
|
{
|
2016-07-06 02:00:03 +02:00
|
|
|
immutable ubyte[32] key = [ 1, 2, 3, 4, 5, 6, 7, 8,
|
|
|
|
|
9, 10, 11, 12, 13, 14, 15, 16,
|
|
|
|
|
201,202,203,204,205,206,207,208,
|
|
|
|
|
209,210,211,212,213,214,215,216];
|
|
|
|
|
|
|
|
|
|
immutable ubyte[16] n = [101,102,103,104,105,106,107,108,
|
|
|
|
|
109,110,111,112,113,114,115,116];
|
2016-02-14 11:00:28 +01:00
|
|
|
|
2016-07-31 17:49:42 +02:00
|
|
|
assert(chacha20Exp(key, n) == [ 91, 78,219,119,210,190, 8, 62, 37,143, 86,137,217,173,192, 90,
|
|
|
|
|
200, 33, 74, 29,135,175, 94, 6, 23,221,182, 9, 17,163, 46,191,
|
|
|
|
|
222,214,172,130,247,120,162, 47,190,213, 83, 21,242,210, 49,174,
|
|
|
|
|
198, 64, 8, 65, 98, 73, 10,144, 56, 48,201, 68, 1,174,183,172]);
|
|
|
|
|
|
|
|
|
|
// Test vectors consistent with http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-04#section-7
|
|
|
|
|
immutable ubyte[32] key1 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
|
|
|
|
|
immutable ubyte[16] n1 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
|
|
|
|
|
|
|
|
|
|
immutable ubyte[32] key2 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1];
|
|
|
|
|
immutable ubyte[16] n2 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
|
|
|
|
|
|
|
|
|
|
immutable ubyte[32] key3 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
|
|
|
|
|
immutable ubyte[16] n3 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1];
|
|
|
|
|
|
|
|
|
|
immutable ubyte[32] key4 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
|
|
|
|
|
immutable ubyte[16] n4 = [0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0];
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
assert(chacha20Exp(key1, n1) == [118, 184, 224, 173, 160, 241, 61, 144, 64, 93, 106, 229, 83, 134, 189, 40, 189, 210, 25, 184, 160, 141, 237, 26, 168, 54, 239, 204, 139, 119, 13, 199, 218, 65, 89, 124, 81, 87, 72, 141, 119, 36, 224, 63, 184, 216, 74, 55, 106, 67, 184, 244, 21, 24, 161, 28, 195, 135, 182, 105, 178, 238, 101, 134]);
|
|
|
|
|
|
|
|
|
|
assert(chacha20Exp(key2, n2) == [69, 64, 240, 90, 159, 31, 178, 150, 215, 115, 110, 123, 32, 142, 60, 150, 235, 79, 225, 131, 70, 136, 210, 96, 79, 69, 9, 82, 237, 67, 45, 65, 187, 226, 160, 182, 234, 117, 102, 210, 165, 209, 231, 226, 13, 66, 175, 44, 83, 215, 146, 177, 196, 63, 234, 129, 126, 154, 210, 117, 174, 84, 105, 99]);
|
|
|
|
|
|
|
|
|
|
assert(chacha20Exp(key3, n3) == [222, 156, 186, 123, 243, 214, 158, 245, 231, 134, 220, 99, 151, 63, 101, 58, 11, 73, 224, 21, 173, 191, 247, 19, 79, 203, 125, 241, 55, 130, 16, 49, 232, 90, 5, 2, 120, 167, 8, 69, 39, 33, 79, 115, 239, 199, 250, 91, 82, 119, 6, 46, 183, 160, 67, 62, 68, 95, 65, 227, 26, 250, 183, 87]);
|
|
|
|
|
|
|
|
|
|
assert(chacha20Exp(key4, n4) == [239, 63, 223, 214, 198, 21, 120, 251, 245, 207, 53, 189, 61, 211, 59, 128, 9, 99, 22, 52, 210, 30, 66, 172, 51, 150, 11, 209, 56, 229, 13, 50, 17, 30, 76, 175, 35, 126, 229, 60, 168, 173, 100, 38, 25, 74, 136, 84, 93, 220, 73, 122, 11, 70, 110, 125, 107, 189, 176, 4, 27, 47, 88, 107]);
|
|
|
|
|
}
|
