mirror of
https://github.com/Luzifer/nginx-sso.git
synced 2024-12-21 05:11:17 +00:00
199 lines
4.9 KiB
Go
199 lines
4.9 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package salsa
|
|
|
|
// Core208 applies the Salsa20/8 core function to the 64-byte array in and puts
|
|
// the result into the 64-byte array out. The input and output may be the same array.
|
|
func Core208(out *[64]byte, in *[64]byte) {
|
|
j0 := uint32(in[0]) | uint32(in[1])<<8 | uint32(in[2])<<16 | uint32(in[3])<<24
|
|
j1 := uint32(in[4]) | uint32(in[5])<<8 | uint32(in[6])<<16 | uint32(in[7])<<24
|
|
j2 := uint32(in[8]) | uint32(in[9])<<8 | uint32(in[10])<<16 | uint32(in[11])<<24
|
|
j3 := uint32(in[12]) | uint32(in[13])<<8 | uint32(in[14])<<16 | uint32(in[15])<<24
|
|
j4 := uint32(in[16]) | uint32(in[17])<<8 | uint32(in[18])<<16 | uint32(in[19])<<24
|
|
j5 := uint32(in[20]) | uint32(in[21])<<8 | uint32(in[22])<<16 | uint32(in[23])<<24
|
|
j6 := uint32(in[24]) | uint32(in[25])<<8 | uint32(in[26])<<16 | uint32(in[27])<<24
|
|
j7 := uint32(in[28]) | uint32(in[29])<<8 | uint32(in[30])<<16 | uint32(in[31])<<24
|
|
j8 := uint32(in[32]) | uint32(in[33])<<8 | uint32(in[34])<<16 | uint32(in[35])<<24
|
|
j9 := uint32(in[36]) | uint32(in[37])<<8 | uint32(in[38])<<16 | uint32(in[39])<<24
|
|
j10 := uint32(in[40]) | uint32(in[41])<<8 | uint32(in[42])<<16 | uint32(in[43])<<24
|
|
j11 := uint32(in[44]) | uint32(in[45])<<8 | uint32(in[46])<<16 | uint32(in[47])<<24
|
|
j12 := uint32(in[48]) | uint32(in[49])<<8 | uint32(in[50])<<16 | uint32(in[51])<<24
|
|
j13 := uint32(in[52]) | uint32(in[53])<<8 | uint32(in[54])<<16 | uint32(in[55])<<24
|
|
j14 := uint32(in[56]) | uint32(in[57])<<8 | uint32(in[58])<<16 | uint32(in[59])<<24
|
|
j15 := uint32(in[60]) | uint32(in[61])<<8 | uint32(in[62])<<16 | uint32(in[63])<<24
|
|
|
|
x0, x1, x2, x3, x4, x5, x6, x7, x8 := j0, j1, j2, j3, j4, j5, j6, j7, j8
|
|
x9, x10, x11, x12, x13, x14, x15 := j9, j10, j11, j12, j13, j14, j15
|
|
|
|
for i := 0; i < 8; i += 2 {
|
|
u := x0 + x12
|
|
x4 ^= u<<7 | u>>(32-7)
|
|
u = x4 + x0
|
|
x8 ^= u<<9 | u>>(32-9)
|
|
u = x8 + x4
|
|
x12 ^= u<<13 | u>>(32-13)
|
|
u = x12 + x8
|
|
x0 ^= u<<18 | u>>(32-18)
|
|
|
|
u = x5 + x1
|
|
x9 ^= u<<7 | u>>(32-7)
|
|
u = x9 + x5
|
|
x13 ^= u<<9 | u>>(32-9)
|
|
u = x13 + x9
|
|
x1 ^= u<<13 | u>>(32-13)
|
|
u = x1 + x13
|
|
x5 ^= u<<18 | u>>(32-18)
|
|
|
|
u = x10 + x6
|
|
x14 ^= u<<7 | u>>(32-7)
|
|
u = x14 + x10
|
|
x2 ^= u<<9 | u>>(32-9)
|
|
u = x2 + x14
|
|
x6 ^= u<<13 | u>>(32-13)
|
|
u = x6 + x2
|
|
x10 ^= u<<18 | u>>(32-18)
|
|
|
|
u = x15 + x11
|
|
x3 ^= u<<7 | u>>(32-7)
|
|
u = x3 + x15
|
|
x7 ^= u<<9 | u>>(32-9)
|
|
u = x7 + x3
|
|
x11 ^= u<<13 | u>>(32-13)
|
|
u = x11 + x7
|
|
x15 ^= u<<18 | u>>(32-18)
|
|
|
|
u = x0 + x3
|
|
x1 ^= u<<7 | u>>(32-7)
|
|
u = x1 + x0
|
|
x2 ^= u<<9 | u>>(32-9)
|
|
u = x2 + x1
|
|
x3 ^= u<<13 | u>>(32-13)
|
|
u = x3 + x2
|
|
x0 ^= u<<18 | u>>(32-18)
|
|
|
|
u = x5 + x4
|
|
x6 ^= u<<7 | u>>(32-7)
|
|
u = x6 + x5
|
|
x7 ^= u<<9 | u>>(32-9)
|
|
u = x7 + x6
|
|
x4 ^= u<<13 | u>>(32-13)
|
|
u = x4 + x7
|
|
x5 ^= u<<18 | u>>(32-18)
|
|
|
|
u = x10 + x9
|
|
x11 ^= u<<7 | u>>(32-7)
|
|
u = x11 + x10
|
|
x8 ^= u<<9 | u>>(32-9)
|
|
u = x8 + x11
|
|
x9 ^= u<<13 | u>>(32-13)
|
|
u = x9 + x8
|
|
x10 ^= u<<18 | u>>(32-18)
|
|
|
|
u = x15 + x14
|
|
x12 ^= u<<7 | u>>(32-7)
|
|
u = x12 + x15
|
|
x13 ^= u<<9 | u>>(32-9)
|
|
u = x13 + x12
|
|
x14 ^= u<<13 | u>>(32-13)
|
|
u = x14 + x13
|
|
x15 ^= u<<18 | u>>(32-18)
|
|
}
|
|
x0 += j0
|
|
x1 += j1
|
|
x2 += j2
|
|
x3 += j3
|
|
x4 += j4
|
|
x5 += j5
|
|
x6 += j6
|
|
x7 += j7
|
|
x8 += j8
|
|
x9 += j9
|
|
x10 += j10
|
|
x11 += j11
|
|
x12 += j12
|
|
x13 += j13
|
|
x14 += j14
|
|
x15 += j15
|
|
|
|
out[0] = byte(x0)
|
|
out[1] = byte(x0 >> 8)
|
|
out[2] = byte(x0 >> 16)
|
|
out[3] = byte(x0 >> 24)
|
|
|
|
out[4] = byte(x1)
|
|
out[5] = byte(x1 >> 8)
|
|
out[6] = byte(x1 >> 16)
|
|
out[7] = byte(x1 >> 24)
|
|
|
|
out[8] = byte(x2)
|
|
out[9] = byte(x2 >> 8)
|
|
out[10] = byte(x2 >> 16)
|
|
out[11] = byte(x2 >> 24)
|
|
|
|
out[12] = byte(x3)
|
|
out[13] = byte(x3 >> 8)
|
|
out[14] = byte(x3 >> 16)
|
|
out[15] = byte(x3 >> 24)
|
|
|
|
out[16] = byte(x4)
|
|
out[17] = byte(x4 >> 8)
|
|
out[18] = byte(x4 >> 16)
|
|
out[19] = byte(x4 >> 24)
|
|
|
|
out[20] = byte(x5)
|
|
out[21] = byte(x5 >> 8)
|
|
out[22] = byte(x5 >> 16)
|
|
out[23] = byte(x5 >> 24)
|
|
|
|
out[24] = byte(x6)
|
|
out[25] = byte(x6 >> 8)
|
|
out[26] = byte(x6 >> 16)
|
|
out[27] = byte(x6 >> 24)
|
|
|
|
out[28] = byte(x7)
|
|
out[29] = byte(x7 >> 8)
|
|
out[30] = byte(x7 >> 16)
|
|
out[31] = byte(x7 >> 24)
|
|
|
|
out[32] = byte(x8)
|
|
out[33] = byte(x8 >> 8)
|
|
out[34] = byte(x8 >> 16)
|
|
out[35] = byte(x8 >> 24)
|
|
|
|
out[36] = byte(x9)
|
|
out[37] = byte(x9 >> 8)
|
|
out[38] = byte(x9 >> 16)
|
|
out[39] = byte(x9 >> 24)
|
|
|
|
out[40] = byte(x10)
|
|
out[41] = byte(x10 >> 8)
|
|
out[42] = byte(x10 >> 16)
|
|
out[43] = byte(x10 >> 24)
|
|
|
|
out[44] = byte(x11)
|
|
out[45] = byte(x11 >> 8)
|
|
out[46] = byte(x11 >> 16)
|
|
out[47] = byte(x11 >> 24)
|
|
|
|
out[48] = byte(x12)
|
|
out[49] = byte(x12 >> 8)
|
|
out[50] = byte(x12 >> 16)
|
|
out[51] = byte(x12 >> 24)
|
|
|
|
out[52] = byte(x13)
|
|
out[53] = byte(x13 >> 8)
|
|
out[54] = byte(x13 >> 16)
|
|
out[55] = byte(x13 >> 24)
|
|
|
|
out[56] = byte(x14)
|
|
out[57] = byte(x14 >> 8)
|
|
out[58] = byte(x14 >> 16)
|
|
out[59] = byte(x14 >> 24)
|
|
|
|
out[60] = byte(x15)
|
|
out[61] = byte(x15 >> 8)
|
|
out[62] = byte(x15 >> 16)
|
|
out[63] = byte(x15 >> 24)
|
|
}
|