mirror of
https://github.com/Ed94/Odin.git
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core/crypto/chacha20: Cleanups
- Use `encoding/endian` - Use `math/bits`
This commit is contained in:
Yawning Angel
+135
-180
@@ -1,6 +1,6 @@
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package chacha20
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package chacha20
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import "core:crypto/util"
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import "core:encoding/endian"
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import "core:math/bits"
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import "core:math/bits"
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import "core:mem"
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import "core:mem"
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@@ -60,23 +60,23 @@ init :: proc (ctx: ^Context, key, nonce: []byte) {
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ctx._s[1] = _SIGMA_1
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ctx._s[1] = _SIGMA_1
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ctx._s[2] = _SIGMA_2
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ctx._s[2] = _SIGMA_2
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ctx._s[3] = _SIGMA_3
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ctx._s[3] = _SIGMA_3
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ctx._s[4] = util.U32_LE(k[0:4])
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ctx._s[4] = endian.unchecked_get_u32le(k[0:4])
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ctx._s[5] = util.U32_LE(k[4:8])
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ctx._s[5] = endian.unchecked_get_u32le(k[4:8])
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ctx._s[6] = util.U32_LE(k[8:12])
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ctx._s[6] = endian.unchecked_get_u32le(k[8:12])
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ctx._s[7] = util.U32_LE(k[12:16])
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ctx._s[7] = endian.unchecked_get_u32le(k[12:16])
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ctx._s[8] = util.U32_LE(k[16:20])
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ctx._s[8] = endian.unchecked_get_u32le(k[16:20])
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ctx._s[9] = util.U32_LE(k[20:24])
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ctx._s[9] = endian.unchecked_get_u32le(k[20:24])
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ctx._s[10] = util.U32_LE(k[24:28])
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ctx._s[10] = endian.unchecked_get_u32le(k[24:28])
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ctx._s[11] = util.U32_LE(k[28:32])
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ctx._s[11] = endian.unchecked_get_u32le(k[28:32])
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ctx._s[12] = 0
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ctx._s[12] = 0
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if !is_xchacha {
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if !is_xchacha {
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ctx._s[13] = util.U32_LE(n[0:4])
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ctx._s[13] = endian.unchecked_get_u32le(n[0:4])
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ctx._s[14] = util.U32_LE(n[4:8])
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ctx._s[14] = endian.unchecked_get_u32le(n[4:8])
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ctx._s[15] = util.U32_LE(n[8:12])
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ctx._s[15] = endian.unchecked_get_u32le(n[8:12])
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} else {
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} else {
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ctx._s[13] = 0
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ctx._s[13] = 0
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ctx._s[14] = util.U32_LE(n[0:4])
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ctx._s[14] = endian.unchecked_get_u32le(n[0:4])
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ctx._s[15] = util.U32_LE(n[4:8])
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ctx._s[15] = endian.unchecked_get_u32le(n[4:8])
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// The sub-key is stored in the keystream buffer. While
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// The sub-key is stored in the keystream buffer. While
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// this will be overwritten in most circumstances, explicitly
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// this will be overwritten in most circumstances, explicitly
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@@ -221,114 +221,114 @@ _do_blocks :: proc (ctx: ^Context, dst, src: []byte, nr_blocks: int) {
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// quarterround(x, 0, 4, 8, 12)
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// quarterround(x, 0, 4, 8, 12)
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x0 += x4
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x0 += x4
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x12 ~= x0
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x12 ~= x0
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x12 = util.ROTL32(x12, 16)
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x12 = bits.rotate_left32(x12, 16)
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x8 += x12
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x8 += x12
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x4 ~= x8
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x4 ~= x8
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x4 = util.ROTL32(x4, 12)
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x4 = bits.rotate_left32(x4, 12)
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x0 += x4
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x0 += x4
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x12 ~= x0
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x12 ~= x0
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x12 = util.ROTL32(x12, 8)
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x12 = bits.rotate_left32(x12, 8)
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x8 += x12
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x8 += x12
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x4 ~= x8
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x4 ~= x8
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x4 = util.ROTL32(x4, 7)
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x4 = bits.rotate_left32(x4, 7)
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// quarterround(x, 1, 5, 9, 13)
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// quarterround(x, 1, 5, 9, 13)
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x1 += x5
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x1 += x5
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x13 ~= x1
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x13 ~= x1
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x13 = util.ROTL32(x13, 16)
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x13 = bits.rotate_left32(x13, 16)
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x9 += x13
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x9 += x13
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x5 ~= x9
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x5 ~= x9
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x5 = util.ROTL32(x5, 12)
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x5 = bits.rotate_left32(x5, 12)
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x1 += x5
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x1 += x5
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x13 ~= x1
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x13 ~= x1
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x13 = util.ROTL32(x13, 8)
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x13 = bits.rotate_left32(x13, 8)
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x9 += x13
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x9 += x13
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x5 ~= x9
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x5 ~= x9
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x5 = util.ROTL32(x5, 7)
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x5 = bits.rotate_left32(x5, 7)
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// quarterround(x, 2, 6, 10, 14)
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// quarterround(x, 2, 6, 10, 14)
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x2 += x6
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x2 += x6
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x14 ~= x2
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x14 ~= x2
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x14 = util.ROTL32(x14, 16)
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x14 = bits.rotate_left32(x14, 16)
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x10 += x14
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x10 += x14
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x6 ~= x10
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x6 ~= x10
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x6 = util.ROTL32(x6, 12)
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x6 = bits.rotate_left32(x6, 12)
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x2 += x6
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x2 += x6
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x14 ~= x2
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x14 ~= x2
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x14 = util.ROTL32(x14, 8)
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x14 = bits.rotate_left32(x14, 8)
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x10 += x14
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x10 += x14
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x6 ~= x10
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x6 ~= x10
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x6 = util.ROTL32(x6, 7)
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x6 = bits.rotate_left32(x6, 7)
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// quarterround(x, 3, 7, 11, 15)
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// quarterround(x, 3, 7, 11, 15)
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x3 += x7
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x3 += x7
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x15 ~= x3
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x15 ~= x3
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x15 = util.ROTL32(x15, 16)
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x15 = bits.rotate_left32(x15, 16)
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x11 += x15
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x11 += x15
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x7 ~= x11
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x7 ~= x11
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x7 = util.ROTL32(x7, 12)
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x7 = bits.rotate_left32(x7, 12)
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x3 += x7
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x3 += x7
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x15 ~= x3
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x15 ~= x3
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x15 = util.ROTL32(x15, 8)
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x15 = bits.rotate_left32(x15, 8)
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x11 += x15
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x11 += x15
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x7 ~= x11
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x7 ~= x11
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x7 = util.ROTL32(x7, 7)
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x7 = bits.rotate_left32(x7, 7)
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// quarterround(x, 0, 5, 10, 15)
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// quarterround(x, 0, 5, 10, 15)
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x0 += x5
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x0 += x5
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x15 ~= x0
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x15 ~= x0
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x15 = util.ROTL32(x15, 16)
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x15 = bits.rotate_left32(x15, 16)
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x10 += x15
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x10 += x15
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x5 ~= x10
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x5 ~= x10
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x5 = util.ROTL32(x5, 12)
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x5 = bits.rotate_left32(x5, 12)
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x0 += x5
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x0 += x5
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x15 ~= x0
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x15 ~= x0
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x15 = util.ROTL32(x15, 8)
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x15 = bits.rotate_left32(x15, 8)
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x10 += x15
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x10 += x15
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x5 ~= x10
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x5 ~= x10
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x5 = util.ROTL32(x5, 7)
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x5 = bits.rotate_left32(x5, 7)
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// quarterround(x, 1, 6, 11, 12)
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// quarterround(x, 1, 6, 11, 12)
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x1 += x6
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x1 += x6
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x12 ~= x1
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x12 ~= x1
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x12 = util.ROTL32(x12, 16)
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x12 = bits.rotate_left32(x12, 16)
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x11 += x12
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x11 += x12
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x6 ~= x11
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x6 ~= x11
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x6 = util.ROTL32(x6, 12)
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x6 = bits.rotate_left32(x6, 12)
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x1 += x6
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x1 += x6
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x12 ~= x1
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x12 ~= x1
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x12 = util.ROTL32(x12, 8)
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x12 = bits.rotate_left32(x12, 8)
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x11 += x12
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x11 += x12
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x6 ~= x11
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x6 ~= x11
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x6 = util.ROTL32(x6, 7)
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x6 = bits.rotate_left32(x6, 7)
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// quarterround(x, 2, 7, 8, 13)
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// quarterround(x, 2, 7, 8, 13)
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x2 += x7
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x2 += x7
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x13 ~= x2
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x13 ~= x2
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x13 = util.ROTL32(x13, 16)
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x13 = bits.rotate_left32(x13, 16)
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x8 += x13
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x8 += x13
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x7 ~= x8
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x7 ~= x8
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x7 = util.ROTL32(x7, 12)
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x7 = bits.rotate_left32(x7, 12)
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x2 += x7
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x2 += x7
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x13 ~= x2
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x13 ~= x2
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x13 = util.ROTL32(x13, 8)
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x13 = bits.rotate_left32(x13, 8)
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x8 += x13
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x8 += x13
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x7 ~= x8
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x7 ~= x8
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x7 = util.ROTL32(x7, 7)
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x7 = bits.rotate_left32(x7, 7)
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// quarterround(x, 3, 4, 9, 14)
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// quarterround(x, 3, 4, 9, 14)
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x3 += x4
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x3 += x4
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x14 ~= x3
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x14 ~= x3
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x14 = util.ROTL32(x14, 16)
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x14 = bits.rotate_left32(x14, 16)
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x9 += x14
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x9 += x14
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x4 ~= x9
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x4 ~= x9
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x4 = util.ROTL32(x4, 12)
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x4 = bits.rotate_left32(x4, 12)
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x3 += x4
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x3 += x4
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x14 ~= x3
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x14 ~= x3
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x14 = util.ROTL32(x14, 8)
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x14 = bits.rotate_left32(x14, 8)
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x9 += x14
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x9 += x14
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x4 ~= x9
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x4 ~= x9
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x4 = util.ROTL32(x4, 7)
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x4 = bits.rotate_left32(x4, 7)
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}
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}
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x0 += _SIGMA_0
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x0 += _SIGMA_0
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@@ -352,93 +352,48 @@ _do_blocks :: proc (ctx: ^Context, dst, src: []byte, nr_blocks: int) {
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// this is "use vector operations", support for that is currently
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// this is "use vector operations", support for that is currently
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// a work in progress/to be designed.
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// a work in progress/to be designed.
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//
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//
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// Until dedicated assembly can be written leverage the fact that
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// In the meantime:
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// the callers of this routine ensure that src/dst are valid.
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// - The caller(s) ensure that src/dst are valid.
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// - The compiler knows if the target is picky about alignment.
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when ODIN_ARCH == .i386 || ODIN_ARCH == .amd64 {
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#no_bounds_check {
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// util.PUT_U32_LE/util.U32_LE are not required on little-endian
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// systems that also happen to not be strict about aligned
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// memory access.
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dst_p := transmute(^[16]u32)(&dst[0])
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if src != nil {
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if src != nil {
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src_p := transmute(^[16]u32)(&src[0])
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endian.unchecked_put_u32le(dst[0:4], endian.unchecked_get_u32le(src[0:4]) ~ x0)
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dst_p[0] = src_p[0] ~ x0
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endian.unchecked_put_u32le(dst[4:8], endian.unchecked_get_u32le(src[4:8]) ~ x1)
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dst_p[1] = src_p[1] ~ x1
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endian.unchecked_put_u32le(dst[8:12], endian.unchecked_get_u32le(src[8:12]) ~ x2)
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dst_p[2] = src_p[2] ~ x2
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endian.unchecked_put_u32le(dst[12:16], endian.unchecked_get_u32le(src[12:16]) ~ x3)
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dst_p[3] = src_p[3] ~ x3
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endian.unchecked_put_u32le(dst[16:20], endian.unchecked_get_u32le(src[16:20]) ~ x4)
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dst_p[4] = src_p[4] ~ x4
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endian.unchecked_put_u32le(dst[20:24], endian.unchecked_get_u32le(src[20:24]) ~ x5)
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dst_p[5] = src_p[5] ~ x5
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endian.unchecked_put_u32le(dst[24:28], endian.unchecked_get_u32le(src[24:28]) ~ x6)
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dst_p[6] = src_p[6] ~ x6
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endian.unchecked_put_u32le(dst[28:32], endian.unchecked_get_u32le(src[28:32]) ~ x7)
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dst_p[7] = src_p[7] ~ x7
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endian.unchecked_put_u32le(dst[32:36], endian.unchecked_get_u32le(src[32:36]) ~ x8)
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dst_p[8] = src_p[8] ~ x8
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endian.unchecked_put_u32le(dst[36:40], endian.unchecked_get_u32le(src[36:40]) ~ x9)
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dst_p[9] = src_p[9] ~ x9
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endian.unchecked_put_u32le(dst[40:44], endian.unchecked_get_u32le(src[40:44]) ~ x10)
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dst_p[10] = src_p[10] ~ x10
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endian.unchecked_put_u32le(dst[44:48], endian.unchecked_get_u32le(src[44:48]) ~ x11)
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dst_p[11] = src_p[11] ~ x11
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endian.unchecked_put_u32le(dst[48:52], endian.unchecked_get_u32le(src[48:52]) ~ x12)
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dst_p[12] = src_p[12] ~ x12
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endian.unchecked_put_u32le(dst[52:56], endian.unchecked_get_u32le(src[52:56]) ~ x13)
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dst_p[13] = src_p[13] ~ x13
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endian.unchecked_put_u32le(dst[56:60], endian.unchecked_get_u32le(src[56:60]) ~ x14)
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dst_p[14] = src_p[14] ~ x14
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endian.unchecked_put_u32le(dst[60:64], endian.unchecked_get_u32le(src[60:64]) ~ x15)
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dst_p[15] = src_p[15] ~ x15
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src = src[_BLOCK_SIZE:]
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src = src[_BLOCK_SIZE:]
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} else {
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} else {
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dst_p[0] = x0
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endian.unchecked_put_u32le(dst[0:4], x0)
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dst_p[1] = x1
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endian.unchecked_put_u32le(dst[4:8], x1)
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dst_p[2] = x2
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endian.unchecked_put_u32le(dst[8:12], x2)
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dst_p[3] = x3
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endian.unchecked_put_u32le(dst[12:16], x3)
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dst_p[4] = x4
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endian.unchecked_put_u32le(dst[16:20], x4)
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dst_p[5] = x5
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endian.unchecked_put_u32le(dst[20:24], x5)
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dst_p[6] = x6
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endian.unchecked_put_u32le(dst[24:28], x6)
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dst_p[7] = x7
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endian.unchecked_put_u32le(dst[28:32], x7)
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dst_p[8] = x8
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endian.unchecked_put_u32le(dst[32:36], x8)
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dst_p[9] = x9
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endian.unchecked_put_u32le(dst[36:40], x9)
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dst_p[10] = x10
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endian.unchecked_put_u32le(dst[40:44], x10)
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dst_p[11] = x11
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endian.unchecked_put_u32le(dst[44:48], x11)
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dst_p[12] = x12
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endian.unchecked_put_u32le(dst[48:52], x12)
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dst_p[13] = x13
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endian.unchecked_put_u32le(dst[52:56], x13)
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dst_p[14] = x14
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endian.unchecked_put_u32le(dst[56:60], x14)
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dst_p[15] = x15
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endian.unchecked_put_u32le(dst[60:64], x15)
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}
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}
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dst = dst[_BLOCK_SIZE:]
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dst = dst[_BLOCK_SIZE:]
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} else {
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#no_bounds_check {
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if src != nil {
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util.PUT_U32_LE(dst[0:4], util.U32_LE(src[0:4]) ~ x0)
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util.PUT_U32_LE(dst[4:8], util.U32_LE(src[4:8]) ~ x1)
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util.PUT_U32_LE(dst[8:12], util.U32_LE(src[8:12]) ~ x2)
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util.PUT_U32_LE(dst[12:16], util.U32_LE(src[12:16]) ~ x3)
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util.PUT_U32_LE(dst[16:20], util.U32_LE(src[16:20]) ~ x4)
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util.PUT_U32_LE(dst[20:24], util.U32_LE(src[20:24]) ~ x5)
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util.PUT_U32_LE(dst[24:28], util.U32_LE(src[24:28]) ~ x6)
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util.PUT_U32_LE(dst[28:32], util.U32_LE(src[28:32]) ~ x7)
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util.PUT_U32_LE(dst[32:36], util.U32_LE(src[32:36]) ~ x8)
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util.PUT_U32_LE(dst[36:40], util.U32_LE(src[36:40]) ~ x9)
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util.PUT_U32_LE(dst[40:44], util.U32_LE(src[40:44]) ~ x10)
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util.PUT_U32_LE(dst[44:48], util.U32_LE(src[44:48]) ~ x11)
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util.PUT_U32_LE(dst[48:52], util.U32_LE(src[48:52]) ~ x12)
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util.PUT_U32_LE(dst[52:56], util.U32_LE(src[52:56]) ~ x13)
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util.PUT_U32_LE(dst[56:60], util.U32_LE(src[56:60]) ~ x14)
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|
||||||
util.PUT_U32_LE(dst[60:64], util.U32_LE(src[60:64]) ~ x15)
|
|
||||||
src = src[_BLOCK_SIZE:]
|
|
||||||
} else {
|
|
||||||
util.PUT_U32_LE(dst[0:4], x0)
|
|
||||||
util.PUT_U32_LE(dst[4:8], x1)
|
|
||||||
util.PUT_U32_LE(dst[8:12], x2)
|
|
||||||
util.PUT_U32_LE(dst[12:16], x3)
|
|
||||||
util.PUT_U32_LE(dst[16:20], x4)
|
|
||||||
util.PUT_U32_LE(dst[20:24], x5)
|
|
||||||
util.PUT_U32_LE(dst[24:28], x6)
|
|
||||||
util.PUT_U32_LE(dst[28:32], x7)
|
|
||||||
util.PUT_U32_LE(dst[32:36], x8)
|
|
||||||
util.PUT_U32_LE(dst[36:40], x9)
|
|
||||||
util.PUT_U32_LE(dst[40:44], x10)
|
|
||||||
util.PUT_U32_LE(dst[44:48], x11)
|
|
||||||
util.PUT_U32_LE(dst[48:52], x12)
|
|
||||||
util.PUT_U32_LE(dst[52:56], x13)
|
|
||||||
util.PUT_U32_LE(dst[56:60], x14)
|
|
||||||
util.PUT_U32_LE(dst[60:64], x15)
|
|
||||||
}
|
|
||||||
dst = dst[_BLOCK_SIZE:]
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
// Increment the counter. Overflow checking is done upon
|
// Increment the counter. Overflow checking is done upon
|
||||||
@@ -451,141 +406,141 @@ _do_blocks :: proc (ctx: ^Context, dst, src: []byte, nr_blocks: int) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
@(private)
|
@(private)
|
||||||
_hchacha20 :: proc (dst, key, nonce: []byte) {
|
_hchacha20 :: proc "contextless" (dst, key, nonce: []byte) {
|
||||||
x0, x1, x2, x3 := _SIGMA_0, _SIGMA_1, _SIGMA_2, _SIGMA_3
|
x0, x1, x2, x3 := _SIGMA_0, _SIGMA_1, _SIGMA_2, _SIGMA_3
|
||||||
x4 := util.U32_LE(key[0:4])
|
x4 := endian.unchecked_get_u32le(key[0:4])
|
||||||
x5 := util.U32_LE(key[4:8])
|
x5 := endian.unchecked_get_u32le(key[4:8])
|
||||||
x6 := util.U32_LE(key[8:12])
|
x6 := endian.unchecked_get_u32le(key[8:12])
|
||||||
x7 := util.U32_LE(key[12:16])
|
x7 := endian.unchecked_get_u32le(key[12:16])
|
||||||
x8 := util.U32_LE(key[16:20])
|
x8 := endian.unchecked_get_u32le(key[16:20])
|
||||||
x9 := util.U32_LE(key[20:24])
|
x9 := endian.unchecked_get_u32le(key[20:24])
|
||||||
x10 := util.U32_LE(key[24:28])
|
x10 := endian.unchecked_get_u32le(key[24:28])
|
||||||
x11 := util.U32_LE(key[28:32])
|
x11 := endian.unchecked_get_u32le(key[28:32])
|
||||||
x12 := util.U32_LE(nonce[0:4])
|
x12 := endian.unchecked_get_u32le(nonce[0:4])
|
||||||
x13 := util.U32_LE(nonce[4:8])
|
x13 := endian.unchecked_get_u32le(nonce[4:8])
|
||||||
x14 := util.U32_LE(nonce[8:12])
|
x14 := endian.unchecked_get_u32le(nonce[8:12])
|
||||||
x15 := util.U32_LE(nonce[12:16])
|
x15 := endian.unchecked_get_u32le(nonce[12:16])
|
||||||
|
|
||||||
for i := _ROUNDS; i > 0; i = i - 2 {
|
for i := _ROUNDS; i > 0; i = i - 2 {
|
||||||
// quarterround(x, 0, 4, 8, 12)
|
// quarterround(x, 0, 4, 8, 12)
|
||||||
x0 += x4
|
x0 += x4
|
||||||
x12 ~= x0
|
x12 ~= x0
|
||||||
x12 = util.ROTL32(x12, 16)
|
x12 = bits.rotate_left32(x12, 16)
|
||||||
x8 += x12
|
x8 += x12
|
||||||
x4 ~= x8
|
x4 ~= x8
|
||||||
x4 = util.ROTL32(x4, 12)
|
x4 = bits.rotate_left32(x4, 12)
|
||||||
x0 += x4
|
x0 += x4
|
||||||
x12 ~= x0
|
x12 ~= x0
|
||||||
x12 = util.ROTL32(x12, 8)
|
x12 = bits.rotate_left32(x12, 8)
|
||||||
x8 += x12
|
x8 += x12
|
||||||
x4 ~= x8
|
x4 ~= x8
|
||||||
x4 = util.ROTL32(x4, 7)
|
x4 = bits.rotate_left32(x4, 7)
|
||||||
|
|
||||||
// quarterround(x, 1, 5, 9, 13)
|
// quarterround(x, 1, 5, 9, 13)
|
||||||
x1 += x5
|
x1 += x5
|
||||||
x13 ~= x1
|
x13 ~= x1
|
||||||
x13 = util.ROTL32(x13, 16)
|
x13 = bits.rotate_left32(x13, 16)
|
||||||
x9 += x13
|
x9 += x13
|
||||||
x5 ~= x9
|
x5 ~= x9
|
||||||
x5 = util.ROTL32(x5, 12)
|
x5 = bits.rotate_left32(x5, 12)
|
||||||
x1 += x5
|
x1 += x5
|
||||||
x13 ~= x1
|
x13 ~= x1
|
||||||
x13 = util.ROTL32(x13, 8)
|
x13 = bits.rotate_left32(x13, 8)
|
||||||
x9 += x13
|
x9 += x13
|
||||||
x5 ~= x9
|
x5 ~= x9
|
||||||
x5 = util.ROTL32(x5, 7)
|
x5 = bits.rotate_left32(x5, 7)
|
||||||
|
|
||||||
// quarterround(x, 2, 6, 10, 14)
|
// quarterround(x, 2, 6, 10, 14)
|
||||||
x2 += x6
|
x2 += x6
|
||||||
x14 ~= x2
|
x14 ~= x2
|
||||||
x14 = util.ROTL32(x14, 16)
|
x14 = bits.rotate_left32(x14, 16)
|
||||||
x10 += x14
|
x10 += x14
|
||||||
x6 ~= x10
|
x6 ~= x10
|
||||||
x6 = util.ROTL32(x6, 12)
|
x6 = bits.rotate_left32(x6, 12)
|
||||||
x2 += x6
|
x2 += x6
|
||||||
x14 ~= x2
|
x14 ~= x2
|
||||||
x14 = util.ROTL32(x14, 8)
|
x14 = bits.rotate_left32(x14, 8)
|
||||||
x10 += x14
|
x10 += x14
|
||||||
x6 ~= x10
|
x6 ~= x10
|
||||||
x6 = util.ROTL32(x6, 7)
|
x6 = bits.rotate_left32(x6, 7)
|
||||||
|
|
||||||
// quarterround(x, 3, 7, 11, 15)
|
// quarterround(x, 3, 7, 11, 15)
|
||||||
x3 += x7
|
x3 += x7
|
||||||
x15 ~= x3
|
x15 ~= x3
|
||||||
x15 = util.ROTL32(x15, 16)
|
x15 = bits.rotate_left32(x15, 16)
|
||||||
x11 += x15
|
x11 += x15
|
||||||
x7 ~= x11
|
x7 ~= x11
|
||||||
x7 = util.ROTL32(x7, 12)
|
x7 = bits.rotate_left32(x7, 12)
|
||||||
x3 += x7
|
x3 += x7
|
||||||
x15 ~= x3
|
x15 ~= x3
|
||||||
x15 = util.ROTL32(x15, 8)
|
x15 = bits.rotate_left32(x15, 8)
|
||||||
x11 += x15
|
x11 += x15
|
||||||
x7 ~= x11
|
x7 ~= x11
|
||||||
x7 = util.ROTL32(x7, 7)
|
x7 = bits.rotate_left32(x7, 7)
|
||||||
|
|
||||||
// quarterround(x, 0, 5, 10, 15)
|
// quarterround(x, 0, 5, 10, 15)
|
||||||
x0 += x5
|
x0 += x5
|
||||||
x15 ~= x0
|
x15 ~= x0
|
||||||
x15 = util.ROTL32(x15, 16)
|
x15 = bits.rotate_left32(x15, 16)
|
||||||
x10 += x15
|
x10 += x15
|
||||||
x5 ~= x10
|
x5 ~= x10
|
||||||
x5 = util.ROTL32(x5, 12)
|
x5 = bits.rotate_left32(x5, 12)
|
||||||
x0 += x5
|
x0 += x5
|
||||||
x15 ~= x0
|
x15 ~= x0
|
||||||
x15 = util.ROTL32(x15, 8)
|
x15 = bits.rotate_left32(x15, 8)
|
||||||
x10 += x15
|
x10 += x15
|
||||||
x5 ~= x10
|
x5 ~= x10
|
||||||
x5 = util.ROTL32(x5, 7)
|
x5 = bits.rotate_left32(x5, 7)
|
||||||
|
|
||||||
// quarterround(x, 1, 6, 11, 12)
|
// quarterround(x, 1, 6, 11, 12)
|
||||||
x1 += x6
|
x1 += x6
|
||||||
x12 ~= x1
|
x12 ~= x1
|
||||||
x12 = util.ROTL32(x12, 16)
|
x12 = bits.rotate_left32(x12, 16)
|
||||||
x11 += x12
|
x11 += x12
|
||||||
x6 ~= x11
|
x6 ~= x11
|
||||||
x6 = util.ROTL32(x6, 12)
|
x6 = bits.rotate_left32(x6, 12)
|
||||||
x1 += x6
|
x1 += x6
|
||||||
x12 ~= x1
|
x12 ~= x1
|
||||||
x12 = util.ROTL32(x12, 8)
|
x12 = bits.rotate_left32(x12, 8)
|
||||||
x11 += x12
|
x11 += x12
|
||||||
x6 ~= x11
|
x6 ~= x11
|
||||||
x6 = util.ROTL32(x6, 7)
|
x6 = bits.rotate_left32(x6, 7)
|
||||||
|
|
||||||
// quarterround(x, 2, 7, 8, 13)
|
// quarterround(x, 2, 7, 8, 13)
|
||||||
x2 += x7
|
x2 += x7
|
||||||
x13 ~= x2
|
x13 ~= x2
|
||||||
x13 = util.ROTL32(x13, 16)
|
x13 = bits.rotate_left32(x13, 16)
|
||||||
x8 += x13
|
x8 += x13
|
||||||
x7 ~= x8
|
x7 ~= x8
|
||||||
x7 = util.ROTL32(x7, 12)
|
x7 = bits.rotate_left32(x7, 12)
|
||||||
x2 += x7
|
x2 += x7
|
||||||
x13 ~= x2
|
x13 ~= x2
|
||||||
x13 = util.ROTL32(x13, 8)
|
x13 = bits.rotate_left32(x13, 8)
|
||||||
x8 += x13
|
x8 += x13
|
||||||
x7 ~= x8
|
x7 ~= x8
|
||||||
x7 = util.ROTL32(x7, 7)
|
x7 = bits.rotate_left32(x7, 7)
|
||||||
|
|
||||||
// quarterround(x, 3, 4, 9, 14)
|
// quarterround(x, 3, 4, 9, 14)
|
||||||
x3 += x4
|
x3 += x4
|
||||||
x14 ~= x3
|
x14 ~= x3
|
||||||
x14 = util.ROTL32(x14, 16)
|
x14 = bits.rotate_left32(x14, 16)
|
||||||
x9 += x14
|
x9 += x14
|
||||||
x4 ~= x9
|
x4 ~= x9
|
||||||
x4 = util.ROTL32(x4, 12)
|
x4 = bits.rotate_left32(x4, 12)
|
||||||
x3 += x4
|
x3 += x4
|
||||||
x14 ~= x3
|
x14 ~= x3
|
||||||
x14 = util.ROTL32(x14, 8)
|
x14 = bits.rotate_left32(x14, 8)
|
||||||
x9 += x14
|
x9 += x14
|
||||||
x4 ~= x9
|
x4 ~= x9
|
||||||
x4 = util.ROTL32(x4, 7)
|
x4 = bits.rotate_left32(x4, 7)
|
||||||
}
|
}
|
||||||
|
|
||||||
util.PUT_U32_LE(dst[0:4], x0)
|
endian.unchecked_put_u32le(dst[0:4], x0)
|
||||||
util.PUT_U32_LE(dst[4:8], x1)
|
endian.unchecked_put_u32le(dst[4:8], x1)
|
||||||
util.PUT_U32_LE(dst[8:12], x2)
|
endian.unchecked_put_u32le(dst[8:12], x2)
|
||||||
util.PUT_U32_LE(dst[12:16], x3)
|
endian.unchecked_put_u32le(dst[12:16], x3)
|
||||||
util.PUT_U32_LE(dst[16:20], x12)
|
endian.unchecked_put_u32le(dst[16:20], x12)
|
||||||
util.PUT_U32_LE(dst[20:24], x13)
|
endian.unchecked_put_u32le(dst[20:24], x13)
|
||||||
util.PUT_U32_LE(dst[24:28], x14)
|
endian.unchecked_put_u32le(dst[24:28], x14)
|
||||||
util.PUT_U32_LE(dst[28:32], x15)
|
endian.unchecked_put_u32le(dst[28:32], x15)
|
||||||
}
|
}
|
||||||
|
|||||||
Reference in New Issue
Block a user