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Revert "math/rand/v2: add ChaCha8"

This reverts commit 6382893890.

Reason for revert: Causes failures on big endian platforms and riscv64.
Possibly a bug in the generic implementation.

For #64284.
For #64285.

Change-Id: Ic1bb8533d9641fae28d0337b36d434b9a575cd7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/543895
Reviewed-by: Heschi Kreinick <heschi@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
TryBot-Bypass: Michael Knyszek <mknyszek@google.com>
This commit is contained in:
Michael Knyszek 2023-11-20 18:02:20 +00:00 committed by Gopher Robot
parent 4a90cdb03d
commit 82fc03f9c9
11 changed files with 3 additions and 1479 deletions

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@ -9,7 +9,6 @@ pkg math/rand/v2, func Int64N(int64) int64 #61716
pkg math/rand/v2, func IntN(int) int #61716
pkg math/rand/v2, func N[$0 intType]($0) $0 #61716
pkg math/rand/v2, func New(Source) *Rand #61716
pkg math/rand/v2, func NewChaCha8([32]uint8) *ChaCha8 #61716
pkg math/rand/v2, func NewPCG(uint64, uint64) *PCG #61716
pkg math/rand/v2, func NewZipf(*Rand, float64, float64, uint64) *Zipf #61716
pkg math/rand/v2, func NormFloat64() float64 #61716
@ -20,10 +19,6 @@ pkg math/rand/v2, func Uint32N(uint32) uint32 #61716
pkg math/rand/v2, func Uint64() uint64 #61716
pkg math/rand/v2, func Uint64N(uint64) uint64 #61716
pkg math/rand/v2, func UintN(uint) uint #61716
pkg math/rand/v2, method (*ChaCha8) MarshalBinary() ([]uint8, error) #61716
pkg math/rand/v2, method (*ChaCha8) Seed([32]uint8) #61716
pkg math/rand/v2, method (*ChaCha8) Uint64() uint64 #61716
pkg math/rand/v2, method (*ChaCha8) UnmarshalBinary([]uint8) error #61716
pkg math/rand/v2, method (*PCG) MarshalBinary() ([]uint8, error) #61716
pkg math/rand/v2, method (*PCG) Seed(uint64, uint64) #61716
pkg math/rand/v2, method (*PCG) Uint64() uint64 #61716
@ -46,7 +41,6 @@ pkg math/rand/v2, method (*Rand) Uint64() uint64 #61716
pkg math/rand/v2, method (*Rand) Uint64N(uint64) uint64 #61716
pkg math/rand/v2, method (*Rand) UintN(uint) uint #61716
pkg math/rand/v2, method (*Zipf) Uint64() uint64 #61716
pkg math/rand/v2, type ChaCha8 struct #61716
pkg math/rand/v2, type PCG struct #61716
pkg math/rand/v2, type Rand struct #61716
pkg math/rand/v2, type Source interface { Uint64 } #61716

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@ -55,17 +55,10 @@ var depsRules = `
unsafe < maps;
unsafe < internal/chacha8rand;
# RUNTIME is the core runtime group of packages, all of them very light-weight.
internal/abi,
internal/chacha8rand,
internal/coverage/rtcov,
internal/cpu,
internal/goarch,
internal/godebugs,
internal/goexperiment,
internal/goos
internal/abi, internal/cpu, internal/goarch,
internal/coverage/rtcov, internal/godebugs, internal/goexperiment,
internal/goos, unsafe
< internal/bytealg
< internal/itoa
< internal/unsafeheader

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@ -1,175 +0,0 @@
// Copyright 2023 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 chacha8rand implements a pseudorandom generator
// based on ChaCha8. It is used by both runtime and math/rand/v2
// and must have no dependencies.
package chacha8rand
import "unsafe"
const (
ctrInc = 4 // increment counter by 4 between block calls
ctrMax = 16 // reseed when counter reaches 16
chunk = 32 // each chunk produced by block is 32 uint64s
reseed = 4 // reseed with 4 words
)
// block is the chacha8rand block function.
func block(seed *[4]uint64, blocks *[32]uint64, counter uint32)
// A State holds the state for a single random generator.
// It must be used from one goroutine at a time.
// If used by multiple goroutines at a time, the goroutines
// may see the same random values, but the code will not
// crash or cause out-of-bounds memory accesses.
type State struct {
buf [32]uint64
seed [4]uint64
i uint32
n uint32
c uint32
}
// Next returns the next random value, along with a boolean
// indicating whether one was available.
// If one is not available, the caller should call Refill
// and then repeat the call to Next.
//
// Next is //go:nosplit to allow its use in the runtime
// with per-m data without holding the per-m lock.
//go:nosplit
func (s *State) Next() (uint64, bool) {
i := s.i
if i >= s.n {
return 0, false
}
s.i = i + 1
return s.buf[i&31], true // i&31 eliminates bounds check
}
// Init seeds the State with the given seed value.
func (s *State) Init(seed [32]byte) {
s.Init64(*(*[4]uint64)(unsafe.Pointer(&seed)))
}
// Init64 seeds the state with the given seed value.
func (s *State) Init64(seed [4]uint64) {
s.seed = seed
block(&s.seed, &s.buf, 0)
s.c = 0
s.i = 0
s.n = chunk
}
// Refill refills the state with more random values.
// After a call to Refill, an immediate call to Next will succeed
// (unless multiple goroutines are incorrectly sharing a state).
func (s *State) Refill() {
s.c += ctrInc
if s.c == ctrMax {
// Reseed with generated uint64s for forward secrecy.
// Normally this is done immediately after computing a block,
// but we do it immediately before computing the next block,
// to allow a much smaller serialized state (just the seed plus offset).
// This gives a delayed benefit for the forward secrecy
// (you can reconstruct the recent past given a memory dump),
// which we deem acceptable in exchange for the reduced size.
s.seed[0] = s.buf[len(s.buf)-reseed+0]
s.seed[1] = s.buf[len(s.buf)-reseed+1]
s.seed[2] = s.buf[len(s.buf)-reseed+2]
s.seed[3] = s.buf[len(s.buf)-reseed+3]
s.c = 0
}
block(&s.seed, &s.buf, s.c)
s.i = 0
s.n = uint32(len(s.buf))
if s.c == ctrMax-ctrInc {
s.n = uint32(len(s.buf)) - reseed
}
}
// Marshal marshals the state into a byte slice.
// Marshal and Unmarshal are functions, not methods,
// so that they will not be linked into the runtime
// when it uses the State struct, since the runtime
// does not need these.
func Marshal(s *State) []byte {
data := make([]byte, 6*8)
copy(data, "chacha8:")
used := (s.c/ctrInc)*chunk + s.i
bePutUint64(data[1*8:], uint64(used))
for i, seed := range s.seed {
lePutUint64(data[(2+i)*8:], seed)
}
return data
}
type errUnmarshalChaCha8 struct{}
func (*errUnmarshalChaCha8) Error() string {
return "invalid ChaCha8 encoding"
}
// Unmarshal unmarshals the state from a byte slice.
func Unmarshal(s *State, data []byte) error {
if len(data) != 6*8 || string(data[:8]) != "chacha8:" {
return new(errUnmarshalChaCha8)
}
used := beUint64(data[1*8:])
if used > (ctrMax/ctrInc)*chunk-reseed {
return new(errUnmarshalChaCha8)
}
for i := range s.seed {
s.seed[i] = leUint64(data[(2+i)*8:])
}
s.c = ctrInc * (uint32(used) / chunk)
block(&s.seed, &s.buf, s.c)
s.i = uint32(used) % chunk
s.n = chunk
if s.c == ctrMax-ctrInc {
s.n = chunk - reseed
}
return nil
}
// binary.bigEndian.Uint64, copied to avoid dependency
func beUint64(b []byte) uint64 {
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
}
// binary.bigEndian.PutUint64, copied to avoid dependency
func bePutUint64(b []byte, v uint64) {
_ = b[7] // early bounds check to guarantee safety of writes below
b[0] = byte(v >> 56)
b[1] = byte(v >> 48)
b[2] = byte(v >> 40)
b[3] = byte(v >> 32)
b[4] = byte(v >> 24)
b[5] = byte(v >> 16)
b[6] = byte(v >> 8)
b[7] = byte(v)
}
// binary.littleEndian.Uint64, copied to avoid dependency
func leUint64(b []byte) uint64 {
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
}
// binary.littleEndian.PutUint64, copied to avoid dependency
func lePutUint64(b []byte, v uint64) {
_ = b[7] // early bounds check to guarantee safety of writes below
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
b[4] = byte(v >> 32)
b[5] = byte(v >> 40)
b[6] = byte(v >> 48)
b[7] = byte(v >> 56)
}

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@ -1,177 +0,0 @@
// Copyright 2023 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.
#include "textflag.h"
// ChaCha8 is ChaCha with 8 rounds.
// See https://cr.yp.to/chacha/chacha-20080128.pdf.
// See chacha8_generic.go for additional details.
// ROL rotates the uint32s in register R left by N bits, using temporary T.
#define ROL(N, R, T) \
MOVO R, T; PSLLL $(N), T; PSRLL $(32-(N)), R; PXOR T, R
// ROL16 rotates the uint32s in register R left by 16, using temporary T if needed.
#ifdef GOAMD64_v2
#define ROL16(R, T) PSHUFB ·rol16<>(SB), R
#else
#define ROL16(R, T) ROL(16, R, T)
#endif
// ROL8 rotates the uint32s in register R left by 8, using temporary T if needed.
#ifdef GOAMD64_v2
#define ROL8(R, T) PSHUFB ·rol8<>(SB), R
#else
#define ROL8(R, T) ROL(8, R, T)
#endif
// QR is the ChaCha quarter-round on A, B, C, and D. T is an available temporary.
#define QR(A, B, C, D, T) \
PADDD B, A; PXOR A, D; ROL16(D, T); \
PADDD D, C; PXOR C, B; MOVO B, T; PSLLL $12, T; PSRLL $20, B; PXOR T, B; \
PADDD B, A; PXOR A, D; ROL8(D, T); \
PADDD D, C; PXOR C, B; MOVO B, T; PSLLL $7, T; PSRLL $25, B; PXOR T, B
// REPLREG replicates the register R into 4 uint32s in XR.
#define REPLREG(R, XR) \
MOVQ R, XR; \
PSHUFD $0, XR, XR
// REPL replicates the uint32 constant val into 4 uint32s in XR. It smashes DX.
#define REPL(val, XR) \
MOVL $val, DX; \
REPLREG(DX, XR)
// SEED copies the off'th uint32 of the seed into the register XR,
// replicating it into all four stripes of the register.
#define SEED(off, reg, XR) \
MOVL (4*off)(AX), reg; \
REPLREG(reg, XR) \
// block runs 4 ChaCha8 block transformations in the four stripes of the X registers.
// func block(seed *[8]uint32, blocks *[16][4]uint32, counter uint32)
TEXT ·block(SB), NOSPLIT, $16
// seed in AX
// blocks in BX
// counter in CX
MOVQ seed+0(FP), AX
MOVQ blocks+8(FP), BX
MOVL counter+16(FP), CX
// Load initial constants into top row.
REPL(0x61707865, X0)
REPL(0x3320646e, X1)
REPL(0x79622d32, X2)
REPL(0x6b206574, X3)
// Load counter into bottom left cell.
// Each stripe gets a different counter: 0, 1, 2, 3.
// (PINSRD is not available in GOAMD64_v1,
// so just do it in memory on all systems.
// This is not on the critical path.)
MOVL CX, 0(SP)
INCL CX
MOVL CX, 4(SP)
INCL CX
MOVL CX, 8(SP)
INCL CX
MOVL CX, 12(SP)
MOVOU 0(SP), X12
// Load seed words into next two rows and into DI, SI, R8..R13
SEED(0, DI, X4)
SEED(1, SI, X5)
SEED(2, R8, X6)
SEED(3, R9, X7)
SEED(4, R10, X8)
SEED(5, R11, X9)
SEED(6, R12, X10)
SEED(7, R13, X11)
// Zeros for remaining two matrix entries.
// We have just enough XMM registers to hold the state,
// without one for the temporary, so we flush and restore
// some values to and from memory to provide a temporary.
// The initial temporary is X15, so zero its memory instead
// of X15 itself.
MOVL $0, DX
MOVQ DX, X13
MOVQ DX, X14
MOVOU X14, (15*16)(BX)
// 4 iterations. Each iteration is 8 quarter-rounds.
MOVL $4, DX
loop:
QR(X0, X4, X8, X12, X15)
MOVOU X4, (4*16)(BX) // save X4
QR(X1, X5, X9, X13, X15)
MOVOU (15*16)(BX), X15 // reload X15; temp now X4
QR(X2, X6, X10, X14, X4)
QR(X3, X7, X11, X15, X4)
QR(X0, X5, X10, X15, X4)
MOVOU X15, (15*16)(BX) // save X15
QR(X1, X6, X11, X12, X4)
MOVOU (4*16)(BX), X4 // reload X4; temp now X15
QR(X2, X7, X8, X13, X15)
QR(X3, X4, X9, X14, X15)
DECL DX
JNZ loop
// Store interlaced blocks back to output buffer,
// adding original seed along the way.
// First the top and bottom rows.
MOVOU X0, (0*16)(BX)
MOVOU X1, (1*16)(BX)
MOVOU X2, (2*16)(BX)
MOVOU X3, (3*16)(BX)
MOVOU X12, (12*16)(BX)
MOVOU X13, (13*16)(BX)
MOVOU X14, (14*16)(BX)
// X15 has already been stored.
// Now we have X0-X3, X12-X15 available for temporaries.
// Add seed rows back to output. We left seed in DI, SI, R8..R13 above.
REPLREG(DI, X0)
REPLREG(SI, X1)
REPLREG(R8, X2)
REPLREG(R9, X3)
REPLREG(R10, X12)
REPLREG(R11, X13)
REPLREG(R12, X14)
REPLREG(R13, X15)
PADDD X0, X4
PADDD X1, X5
PADDD X2, X6
PADDD X3, X7
PADDD X12, X8
PADDD X13, X9
PADDD X14, X10
PADDD X15, X11
MOVOU X4, (4*16)(BX)
MOVOU X5, (5*16)(BX)
MOVOU X6, (6*16)(BX)
MOVOU X7, (7*16)(BX)
MOVOU X8, (8*16)(BX)
MOVOU X9, (9*16)(BX)
MOVOU X10, (10*16)(BX)
MOVOU X11, (11*16)(BX)
MOVL $0, AX
MOVQ AX, X15 // must be 0 on return
RET
// rotate left 16 indexes for PSHUFB
GLOBL ·rol16<>(SB), NOPTR|RODATA, $16
DATA ·rol16<>+0(SB)/8, $0x0504070601000302
DATA ·rol16<>+8(SB)/8, $0x0D0C0F0E09080B0A
// rotate left 8 indexes for PSHUFB
GLOBL ·rol8<>(SB), NOPTR|RODATA, $16
DATA ·rol8<>+0(SB)/8, $0x0605040702010003
DATA ·rol8<>+8(SB)/8, $0x0E0D0C0F0A09080B

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@ -1,106 +0,0 @@
// Copyright 2023 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.
#include "textflag.h"
// QR is the ChaCha quarter-round on A, B, C, and D.
// V30 is used as a temporary, and V31 is assumed to
// hold the index table for rotate left 8.
#define QR(A, B, C, D) \
VADD A.S4, B.S4, A.S4; VEOR D.B16, A.B16, D.B16; VREV32 D.H8, D.H8; \
VADD C.S4, D.S4, C.S4; VEOR B.B16, C.B16, V30.B16; VSHL $12, V30.S4, B.S4; VSRI $20, V30.S4, B.S4 \
VADD A.S4, B.S4, A.S4; VEOR D.B16, A.B16, D.B16; VTBL V31.B16, [D.B16], D.B16; \
VADD C.S4, D.S4, C.S4; VEOR B.B16, C.B16, V30.B16; VSHL $7, V30.S4, B.S4; VSRI $25, V30.S4, B.S4
// block runs 4 ChaCha8 block transformations in the four stripes of the V registers.
// func block(seed *[8]uint32, blocks *[4][16]uint32, counter uint32)
TEXT ·block(SB), NOSPLIT, $16
// seed in R0
// blocks in R1
MOVD seed+0(FP), R0
MOVD blocks+8(FP), R1
MOVW counter+16(FP), R2
// Load initial constants into top row.
MOVD $·chachaConst(SB), R10
VLD4R (R10), [V0.S4, V1.S4, V2.S4, V3.S4]
// Load increment and rotate 8 constants into V30, V31.
MOVD $·chachaIncRot(SB), R11
VLD1 (R11), [V30.S4, V31.S4]
VLD4R.P 16(R0), [V4.S4, V5.S4, V6.S4, V7.S4]
VLD4R.P 16(R0), [V8.S4, V9.S4, V10.S4, V11.S4]
// store counter to memory to replicate its uint32 halfs back out
MOVW R2, 0(RSP)
VLD1R 0(RSP), [V12.S4]
// Add 0, 1, 2, 3 to counter stripes.
VADD V30.S4, V12.S4, V12.S4
// Zeros for remaining two matrix entries.
VEOR V13.B16, V13.B16, V13.B16
VEOR V14.B16, V14.B16, V14.B16
VEOR V15.B16, V15.B16, V15.B16
// Save seed state for adding back later.
VMOV V4.B16, V20.B16
VMOV V5.B16, V21.B16
VMOV V6.B16, V22.B16
VMOV V7.B16, V23.B16
VMOV V8.B16, V24.B16
VMOV V9.B16, V25.B16
VMOV V10.B16, V26.B16
VMOV V11.B16, V27.B16
// 4 iterations. Each iteration is 8 quarter-rounds.
MOVD $4, R0
loop:
QR(V0, V4, V8, V12)
QR(V1, V5, V9, V13)
QR(V2, V6, V10, V14)
QR(V3, V7, V11, V15)
QR(V0, V5, V10, V15)
QR(V1, V6, V11, V12)
QR(V2, V7, V8, V13)
QR(V3, V4, V9, V14)
SUB $1, R0
CBNZ R0, loop
// Add seed back.
VADD V4.S4, V20.S4, V4.S4
VADD V5.S4, V21.S4, V5.S4
VADD V6.S4, V22.S4, V6.S4
VADD V7.S4, V23.S4, V7.S4
VADD V8.S4, V24.S4, V8.S4
VADD V9.S4, V25.S4, V9.S4
VADD V10.S4, V26.S4, V10.S4
VADD V11.S4, V27.S4, V11.S4
// Store interlaced blocks back to output buffer.
VST1.P [ V0.B16, V1.B16, V2.B16, V3.B16], 64(R1)
VST1.P [ V4.B16, V5.B16, V6.B16, V7.B16], 64(R1)
VST1.P [ V8.B16, V9.B16, V10.B16, V11.B16], 64(R1)
VST1.P [V12.B16, V13.B16, V14.B16, V15.B16], 64(R1)
RET
GLOBL ·chachaConst(SB), NOPTR|RODATA, $32
DATA ·chachaConst+0x00(SB)/4, $0x61707865
DATA ·chachaConst+0x04(SB)/4, $0x3320646e
DATA ·chachaConst+0x08(SB)/4, $0x79622d32
DATA ·chachaConst+0x0c(SB)/4, $0x6b206574
GLOBL ·chachaIncRot(SB), NOPTR|RODATA, $32
DATA ·chachaIncRot+0x00(SB)/4, $0x00000000
DATA ·chachaIncRot+0x04(SB)/4, $0x00000001
DATA ·chachaIncRot+0x08(SB)/4, $0x00000002
DATA ·chachaIncRot+0x0c(SB)/4, $0x00000003
DATA ·chachaIncRot+0x10(SB)/4, $0x02010003
DATA ·chachaIncRot+0x14(SB)/4, $0x06050407
DATA ·chachaIncRot+0x18(SB)/4, $0x0A09080B
DATA ·chachaIncRot+0x1c(SB)/4, $0x0E0D0C0F

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@ -1,222 +0,0 @@
// Copyright 2023 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.
// ChaCha8 is ChaCha with 8 rounds.
// See https://cr.yp.to/chacha/chacha-20080128.pdf.
//
// ChaCha8 operates on a 4x4 matrix of uint32 values, initially set to:
//
// const1 const2 const3 const4
// seed seed seed seed
// seed seed seed seed
// counter64 0 0
//
// We use the same constants as ChaCha20 does, a random seed,
// and a counter. Running ChaCha8 on this input produces
// a 4x4 matrix of pseudo-random values with as much entropy
// as the seed.
//
// Given SIMD registers that can hold N uint32s, it is possible
// to run N ChaCha8 block transformations in parallel by filling
// the first register with the N copies of const1, the second
// with N copies of const2, and so on, and then running the operations.
//
// Each iteration of ChaCha8Rand operates over 32 bytes of input and
// produces 992 bytes of RNG output, plus 32 bytes of input for the next
// iteration.
//
// The 32 bytes of input are used as a ChaCha8 key, with a zero nonce, to
// produce 1024 bytes of output (16 blocks, with counters 0 to 15).
// First, for each block, the values 0x61707865, 0x3320646e, 0x79622d32,
// 0x6b206574 are subtracted from the 32-bit little-endian words at
// position 0, 1, 2, and 3 respectively, and an increasing counter
// starting at zero is subtracted from each word at position 12. Then,
// this stream is permuted such that for each sequence of four blocks,
// first we output the first four bytes of each block, then the next four
// bytes of each block, and so on. Finally, the last 32 bytes of output
// are used as the input of the next iteration, and the remaining 992
// bytes are the RNG output.
//
// See https://github.com/C2SP/C2SP/blob/main/chacha8rand/chacha8rand.md
// for additional details.
//
// Normal ChaCha20 implementations for encryption use this same
// parallelism but then have to deinterlace the results so that
// it appears the blocks were generated separately. For the purposes
// of generating random numbers, the interlacing is fine.
// We are simply locked in to preserving the 4-way interlacing
// in any future optimizations.
package chacha8rand
import (
"unsafe"
)
// setup sets up 4 ChaCha8 blocks in b32 with the counter and seed.
// Note that b32 is [16][4]uint32 not [4][16]uint32: the blocks are interlaced
// the same way they would be in a 4-way SIMD implementations.
func setup(seed *[8]uint32, b32 *[16][4]uint32, counter uint32) {
// Convert to uint64 to do half as many stores to memory.
b := (*[16][2]uint64)(unsafe.Pointer(b32))
// Constants; same as in ChaCha20: "expand 32-byte k"
b[0][0] = 0x61707865_61707865
b[0][1] = 0x61707865_61707865
b[1][0] = 0x3320646e_3320646e
b[1][1] = 0x3320646e_3320646e
b[2][0] = 0x79622d32_79622d32
b[2][1] = 0x79622d32_79622d32
b[3][0] = 0x6b206574_6b206574
b[3][1] = 0x6b206574_6b206574
// Seed values.
var x64 uint64
var x uint32
x = seed[0]
x64 = uint64(x)<<32 | uint64(x)
b[4][0] = x64
b[4][1] = x64
x = seed[1]
x64 = uint64(x)<<32 | uint64(x)
b[5][0] = x64
b[5][1] = x64
x = seed[2]
x64 = uint64(x)<<32 | uint64(x)
b[6][0] = x64
b[6][1] = x64
x = seed[3]
x64 = uint64(x)<<32 | uint64(x)
b[7][0] = x64
b[7][1] = x64
x = seed[4]
x64 = uint64(x)<<32 | uint64(x)
b[8][0] = x64
b[8][1] = x64
x = seed[5]
x64 = uint64(x)<<32 | uint64(x)
b[9][0] = x64
b[9][1] = x64
x = seed[6]
x64 = uint64(x)<<32 | uint64(x)
b[10][0] = x64
b[10][1] = x64
x = seed[7]
x64 = uint64(x)<<32 | uint64(x)
b[11][0] = x64
b[11][1] = x64
// Counters.
b[12][0] = uint64(counter+0) | uint64(counter+1)<<32
b[12][1] = uint64(counter+2) | uint64(counter+3)<<32
// Zeros.
b[13][0] = 0
b[13][1] = 0
b[14][0] = 0
b[14][1] = 0
b[15][0] = 0
b[15][1] = 0
}
func _() {
// block and block_generic must have same type
x := block
x = block_generic
_ = x
}
// block_generic is the non-assembly block implementation,
// for use on systems without special assembly.
// Even on such systems, it is quite fast: on GOOS=386,
// ChaCha8 using this code generates random values faster than PCG-DXSM.
func block_generic(seedW *[4]uint64, buf *[32]uint64, counter uint32) {
seed := (*[8]uint32)(unsafe.Pointer(seedW))
b := (*[16][4]uint32)(unsafe.Pointer(buf))
setup(seed, b, counter)
for i := range b[0] {
// Load block i from b[*][i] into local variables.
b0 := b[0][i]
b1 := b[1][i]
b2 := b[2][i]
b3 := b[3][i]
b4 := b[4][i]
b5 := b[5][i]
b6 := b[6][i]
b7 := b[7][i]
b8 := b[8][i]
b9 := b[9][i]
b10 := b[10][i]
b11 := b[11][i]
b12 := b[12][i]
b13 := b[13][i]
b14 := b[14][i]
b15 := b[15][i]
// 4 iterations of eight quarter-rounds each is 8 rounds
for round := 0; round < 4; round++ {
b0, b4, b8, b12 = qr(b0, b4, b8, b12)
b1, b5, b9, b13 = qr(b1, b5, b9, b13)
b2, b6, b10, b14 = qr(b2, b6, b10, b14)
b3, b7, b11, b15 = qr(b3, b7, b11, b15)
b0, b5, b10, b15 = qr(b0, b5, b10, b15)
b1, b6, b11, b12 = qr(b1, b6, b11, b12)
b2, b7, b8, b13 = qr(b2, b7, b8, b13)
b3, b4, b9, b14 = qr(b3, b4, b9, b14)
}
// Store block i back into b[*][i].
// Add b4..b11 back to the original key material,
// like in ChaCha20, to avoid trivial invertibility.
// There is no entropy in b0..b3 and b12..b15
// so we can skip the additions and save some time.
b[0][i] = b0
b[1][i] = b1
b[2][i] = b2
b[3][i] = b3
b[4][i] += b4
b[5][i] += b5
b[6][i] += b6
b[7][i] += b7
b[8][i] += b8
b[9][i] += b9
b[10][i] += b10
b[11][i] += b11
b[12][i] = b12
b[13][i] = b13
b[14][i] = b14
b[15][i] = b15
}
}
// qr is the (inlinable) ChaCha8 quarter round.
func qr(a, b, c, d uint32) (_a, _b, _c, _d uint32) {
a += b
d ^= a
d = d<<16 | d>>16
c += d
b ^= c
b = b<<12 | b>>20
a += b
d ^= a
d = d<<8 | d>>24
c += d
b ^= c
b = b<<7 | b>>25
return a, b, c, d
}

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@ -1,12 +0,0 @@
// Copyright 2023 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.
//go:build !amd64 && !arm64
#include "textflag.h"
// func block(counter uint64, seed *[8]uint32, blocks *[16][4]uint32)
TEXT ·block(SB), NOSPLIT, $0
JMP ·block_generic(SB)

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@ -1,8 +0,0 @@
// Copyright 2023 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 chacha8rand
var Block = block
var Block_generic = block_generic

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@ -1,186 +0,0 @@
// Copyright 2023 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 chacha8rand_test
import (
"bytes"
"fmt"
. "internal/chacha8rand"
"slices"
"testing"
"unsafe"
)
func TestOutput(t *testing.T) {
var s State
s.Init(seed)
for i := range output {
for {
x, ok := s.Next()
if ok {
if x != output[i] {
t.Errorf("#%d: have %#x want %#x", i, x, output[i])
}
break
}
s.Refill()
}
}
}
func TestMarshal(t *testing.T) {
var s State
s.Init(seed)
for i := range output {
for {
b := Marshal(&s)
s = State{}
err := Unmarshal(&s, b)
if err != nil {
t.Fatalf("#%d: Unmarshal: %v", i, err)
}
x, ok := s.Next()
if ok {
if x != output[i] {
t.Fatalf("#%d: have %#x want %#x", i, x, output[i])
}
break
}
s.Refill()
}
}
}
func BenchmarkBlock(b *testing.B) {
var seed [4]uint64
var blocks [32]uint64
for i := 0; i < b.N; i++ {
Block(&seed, &blocks, 0)
}
b.SetBytes(32 * 8)
}
func TestBlockGeneric(t *testing.T) {
var b1, b2 [32]uint64
seed := *(*[4]uint64)(unsafe.Pointer(&seed))
Block(&seed, &b1, 4)
Block_generic(&seed, &b2, 4)
if !slices.Equal(b1[:], b2[:]) {
var out bytes.Buffer
fmt.Fprintf(&out, "%-18s %-18s\n", "block", "block_generic")
for i := range b1 {
suffix := ""
if b1[i] != b2[i] {
suffix = " mismatch!"
}
fmt.Fprintf(&out, "%#016x %#016x%s\n", b1[i], b2[i], suffix)
}
t.Errorf("block and block_generic disagree:\n%s", out.String())
}
}
// Golden output test to make sure algorithm never changes,
// so that its use in math/rand/v2 stays stable.
// See https://github.com/C2SP/C2SP/blob/main/chacha8rand/chacha8rand.md
var seed = [32]byte([]byte("ABCDEFGHIJKLMNOPQRSTUVWXYZ123456"))
var output = []uint64{
0xb773b6063d4616a5, 0x1160af22a66abc3c, 0x8c2599d9418d287c, 0x7ee07e037edc5cd6,
0xcfaa9ee02d1c16ad, 0x0e090eef8febea79, 0x3c82d271128b5b3e, 0x9c5addc11252a34f,
0xdf79bb617d6ceea6, 0x36d553591f9d736a, 0xeef0d14e181ee01f, 0x089bfc760ae58436,
0xd9e52b59cc2ad268, 0xeb2fb4444b1b8aba, 0x4f95c8a692c46661, 0xc3c6323217cae62c,
0x91ebb4367f4e2e7e, 0x784cf2c6a0ec9bc6, 0x5c34ec5c34eabe20, 0x4f0a8f515570daa8,
0xfc35dcb4113d6bf2, 0x5b0da44c645554bc, 0x6d963da3db21d9e1, 0xeeaefc3150e500f3,
0x2d37923dda3750a5, 0x380d7a626d4bc8b0, 0xeeaf68ede3d7ee49, 0xf4356695883b717c,
0x846a9021392495a4, 0x8e8510549630a61b, 0x18dc02545dbae493, 0x0f8f9ff0a65a3d43,
0xccf065f7190ff080, 0xfd76d1aa39673330, 0x95d232936cba6433, 0x6c7456d1070cbd17,
0x462acfdaff8c6562, 0x5bafab866d34fc6a, 0x0c862f78030a2988, 0xd39a83e407c3163d,
0xc00a2b7b45f22ebf, 0x564307c62466b1a9, 0x257e0424b0c072d4, 0x6fb55e99496c28fe,
0xae9873a88f5cd4e0, 0x4657362ac60d3773, 0x1c83f91ecdf23e8e, 0x6fdc0792c15387c0,
0x36dad2a30dfd2b5c, 0xa4b593290595bdb7, 0x4de18934e4cc02c5, 0xcdc0d604f015e3a7,
0xfba0dbf69ad80321, 0x60e8bea3d139de87, 0xd18a4d851ef48756, 0x6366447c2215f34a,
0x05682e97d3d007ee, 0x4c0e8978c6d54ab2, 0xcf1e9f6a6712edc2, 0x061439414c80cfd3,
0xd1a8b6e2745c0ead, 0x31a7918d45c410e8, 0xabcc61ad90216eec, 0x4040d92d2032a71a,
0x3cd2f66ffb40cd68, 0xdcd051c07295857a, 0xeab55cbcd9ab527e, 0x18471dce781bdaac,
0xf7f08cd144dc7252, 0x5804e0b13d7f40d1, 0x5cb1a446e4b2d35b, 0xe6d4a728d2138a06,
0x05223e40ca60dad8, 0x2d61ec3206ac6a68, 0xab692356874c17b8, 0xc30954417676de1c,
0x4f1ace3732225624, 0xfba9510813988338, 0x997f200f52752e11, 0x1116aaafe86221fa,
0x07ce3b5cb2a13519, 0x2956bc72bc458314, 0x4188b7926140eb78, 0x56ca6dbfd4adea4d,
0x7fe3c22349340ce5, 0x35c08f9c37675f8a, 0x11e1c7fbef5ed521, 0x98adc8464ec1bc75,
0xd163b2c73d1203f8, 0x8c761ee043a2f3f3, 0x24b99d6accecd7b7, 0x793e31aa112f0370,
0x8e87dc2a19285139, 0x4247ae04f7096e25, 0x514f3122926fe20f, 0xdc6fb3f045d2a7e9,
0x15cb30cecdd18eba, 0xcbc7fdecf6900274, 0x3fb5c696dc8ba021, 0xd1664417c8d274e6,
0x05f7e445ea457278, 0xf920bbca1b9db657, 0x0c1950b4da22cb99, 0xf875baf1af09e292,
0xbed3d7b84250f838, 0xf198e8080fd74160, 0xc9eda51d9b7ea703, 0xf709ef55439bf8f6,
0xd20c74feebf116fc, 0x305668eb146d7546, 0x829af3ec10d89787, 0x15b8f9697b551dbc,
0xfc823c6c8e64b8c9, 0x345585e8183b40bc, 0x674b4171d6581368, 0x1234d81cd670e9f7,
0x0e505210d8a55e19, 0xe8258d69eeeca0dc, 0x05d4c452e8baf67e, 0xe8dbe30116a45599,
0x1cf08ce1b1176f00, 0xccf7d0a4b81ecb49, 0x303fea136b2c430e, 0x861d6c139c06c871,
0x5f41df72e05e0487, 0x25bd7e1e1ae26b1d, 0xbe9f4004d662a41d, 0x65bf58d483188546,
0xd1b27cff69db13cc, 0x01a6663372c1bb36, 0x578dd7577b727f4d, 0x19c78f066c083cf6,
0xdbe014d4f9c391bb, 0x97fbb2dd1d13ffb3, 0x31c91e0af9ef8d4f, 0x094dfc98402a43ba,
0x069bd61bea37b752, 0x5b72d762e8d986ca, 0x72ee31865904bc85, 0xd1f5fdc5cd36c33e,
0xba9b4980a8947cad, 0xece8f05eac49ab43, 0x65fe1184abae38e7, 0x2d7cb9dea5d31452,
0xcc71489476e467e3, 0x4c03a258a578c68c, 0x00efdf9ecb0fd8fc, 0x9924cad471e2666d,
0x87f8668318f765e9, 0xcb4dc57c1b55f5d8, 0xd373835a86604859, 0xe526568b5540e482,
0x1f39040f08586fec, 0xb764f3f00293f8e6, 0x049443a2f6bd50a8, 0x76fec88697d3941a,
0x3efb70d039bae7a2, 0xe2f4611368eca8a8, 0x7c007a96e01d2425, 0xbbcce5768e69c5bf,
0x784fb4985c42aac3, 0xf72b5091aa223874, 0x3630333fb1e62e07, 0x8e7319ebdebbb8de,
0x2a3982bca959fa00, 0xb2b98b9f964ba9b3, 0xf7e31014adb71951, 0xebd0fca3703acc82,
0xec654e2a2fe6419a, 0xb326132d55a52e2c, 0x2248c57f44502978, 0x32710c2f342daf16,
0x0517b47b5acb2bec, 0x4c7a718fca270937, 0xd69142bed0bcc541, 0xe40ebcb8ff52ce88,
0x3e44a2dbc9f828d4, 0xc74c2f4f8f873f58, 0x3dbf648eb799e45b, 0x33f22475ee0e86f8,
0x1eb4f9ee16d47f65, 0x40f8d2b8712744e3, 0xb886b4da3cb14572, 0x2086326fbdd6f64d,
0xcc3de5907dd882b9, 0xa2e8b49a5ee909df, 0xdbfb8e7823964c10, 0x70dd6089ef0df8d5,
0x30141663cdd9c99f, 0x04b805325c240365, 0x7483d80314ac12d6, 0x2b271cb91aa7f5f9,
0x97e2245362abddf0, 0x5a84f614232a9fab, 0xf71125fcda4b7fa2, 0x1ca5a61d74b27267,
0x38cc6a9b3adbcb45, 0xdde1bb85dc653e39, 0xe9d0c8fa64f89fd4, 0x02c5fb1ecd2b4188,
0xf2bd137bca5756e5, 0xadefe25d121be155, 0x56cd1c3c5d893a8e, 0x4c50d337beb65bb9,
0x918c5151675cf567, 0xaba649ffcfb56a1e, 0x20c74ab26a2247cd, 0x71166bac853c08da,
0xb07befe2e584fc5d, 0xda45ff2a588dbf32, 0xdb98b03c4d75095e, 0x60285ae1aaa65a4c,
0xf93b686a263140b8, 0xde469752ee1c180e, 0xcec232dc04129aae, 0xeb916baa1835ea04,
0xd49c21c8b64388ff, 0x72a82d9658864888, 0x003348ef7eac66a8, 0x7f6f67e655b209eb,
0x532ffb0b7a941b25, 0xd940ade6128deede, 0xdf24f2a1af89fe23, 0x95aa3b4988195ae0,
0x3da649404f94be4a, 0x692dad132c3f7e27, 0x40aee76ecaaa9eb8, 0x1294a01e09655024,
0x6df797abdba4e4f5, 0xea2fb6024c1d7032, 0x5f4e0492295489fc, 0x57972914ea22e06a,
0x9a8137d133aad473, 0xa2e6dd6ae7cdf2f3, 0x9f42644f18086647, 0x16d03301c170bd3e,
0x908c416fa546656d, 0xe081503be22e123e, 0x077cf09116c4cc72, 0xcbd25cd264b7f229,
0x3db2f468ec594031, 0x46c00e734c9badd5, 0xd0ec0ac72075d861, 0x3037cb3cf80b7630,
0x574c3d7b3a2721c6, 0xae99906a0076824b, 0xb175a5418b532e70, 0xd8b3e251ee231ddd,
0xb433eec25dca1966, 0x530f30dc5cff9a93, 0x9ff03d98b53cd335, 0xafc4225076558cdf,
0xef81d3a28284402a, 0x110bdbf51c110a28, 0x9ae1b255d027e8f6, 0x7de3e0aa24688332,
0xe483c3ecd2067ee2, 0xf829328b276137e6, 0xa413ccad57562cad, 0xe6118e8b496acb1f,
0x8288dca6da5ec01f, 0xa53777dc88c17255, 0x8a00f1e0d5716eda, 0x618e6f47b7a720a8,
0x9e3907b0c692a841, 0x978b42ca963f34f3, 0x75e4b0cd98a7d7ef, 0xde4dbd6e0b5f4752,
0x0252e4153f34493f, 0x50f0e7d803734ef9, 0x237766a38ed167ee, 0x4124414001ee39a0,
0xd08df643e535bb21, 0x34f575b5a9a80b74, 0x2c343af87297f755, 0xcd8b6d99d821f7cb,
0xe376fd7256fc48ae, 0xe1b06e7334352885, 0xfa87b26f86c169eb, 0x36c1604665a971de,
0xdba147c2239c8e80, 0x6b208e69fc7f0e24, 0x8795395b6f2b60c3, 0x05dabee9194907f4,
0xb98175142f5ed902, 0x5e1701e2021ddc81, 0x0875aba2755eed08, 0x778d83289251de95,
0x3bfbe46a039ecb31, 0xb24704fce4cbd7f9, 0x6985ffe9a7c91e3d, 0xc8efb13df249dabb,
0xb1037e64b0f4c9f6, 0x55f69fd197d6b7c3, 0x672589d71d68a90c, 0xbebdb8224f50a77e,
0x3f589f80007374a7, 0xd307f4635954182a, 0xcff5850c10d4fd90, 0xc6da02dfb6408e15,
0x93daeef1e2b1a485, 0x65d833208aeea625, 0xe2b13fa13ed3b5fa, 0x67053538130fb68e,
0xc1042f6598218fa9, 0xee5badca749b8a2e, 0x6d22a3f947dae37d, 0xb62c6d1657f4dbaf,
0x6e007de69704c20b, 0x1af2b913fc3841d8, 0xdc0e47348e2e8e22, 0x9b1ddef1cf958b22,
0x632ed6b0233066b8, 0xddd02d3311bed8f2, 0xf147cfe1834656e9, 0x399aaa49d511597a,
0x6b14886979ec0309, 0x64fc4ac36b5afb97, 0xb82f78e07f7cf081, 0x10925c9a323d0e1b,
0xf451c79ee13c63f6, 0x7c2fc180317876c7, 0x35a12bd9eecb7d22, 0x335654a539621f90,
0xcc32a3f35db581f0, 0xc60748a80b2369cb, 0x7c4dd3b08591156b, 0xac1ced4b6de22291,
0xa32cfa2df134def5, 0x627108918dea2a53, 0x0555b1608fcb4ff4, 0x143ee7ac43aaa33c,
0xdae90ce7cf4fc218, 0x4d68fc2582bcf4b5, 0x37094e1849135d71, 0xf7857e09f3d49fd8,
0x007538c503768be7, 0xedf648ba2f6be601, 0xaa347664dd72513e, 0xbe63893c6ef23b86,
0x130b85710605af97, 0xdd765c6b1ef6ab56, 0xf3249a629a97dc6b, 0x2a114f9020fab8e5,
0x5a69e027cfc6ad08, 0x3c4ccb36f1a5e050, 0x2e9e7d596834f0a5, 0x2430be6858fce789,
0xe90b862f2466e597, 0x895e2884f159a9ec, 0x26ab8fa4902fcb57, 0xa6efff5c54e1fa50,
0x333ac4e5811a8255, 0xa58d515f02498611, 0xfe5a09dcb25c6ef4, 0x03898988ab5f5818,
0x289ff6242af6c617, 0x3d9dd59fd381ea23, 0x52d7d93d8a8aae51, 0xc76a123d511f786f,
0xf68901edaf00c46c, 0x8c630871b590de80, 0x05209c308991e091, 0x1f809f99b4788177,
0x11170c2eb6c19fd8, 0x44433c779062ba58, 0xc0acb51af1874c45, 0x9f2e134284809fa1,
0xedb523bd15c619fa, 0x02d97fd53ecc23c0, 0xacaf05a34462374c, 0xddd9c6d34bffa11f,
}

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// Copyright 2023 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 rand
import "internal/chacha8rand"
// A ChaCha8 is a ChaCha8-based cryptographically strong
// random number generator.
type ChaCha8 struct {
state chacha8rand.State
}
// NewChaCha8 returns a new ChaCha8 seeded with the given seed.
func NewChaCha8(seed [32]byte) *ChaCha8 {
c := new(ChaCha8)
c.state.Init(seed)
return c
}
// Seed resets the ChaCha8 to behave the same way as NewChaCha8(seed).
func (c *ChaCha8) Seed(seed [32]byte) {
c.state.Init(seed)
}
// Uint64 returns a uniformly distributed random uint64 value.
func (c *ChaCha8) Uint64() uint64 {
for {
x, ok := c.state.Next()
if ok {
return x
}
c.state.Refill()
}
}
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
func (c *ChaCha8) UnmarshalBinary(data []byte) error {
return chacha8rand.Unmarshal(&c.state, data)
}
// MarshalBinary implements the encoding.BinaryMarshaler interface.
func (c *ChaCha8) MarshalBinary() ([]byte, error) {
return chacha8rand.Marshal(&c.state), nil
}

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// Copyright 2023 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 rand_test
import (
. "math/rand/v2"
"testing"
)
func TestChaCha8(t *testing.T) {
p := NewChaCha8(chacha8seed)
for i, x := range chacha8output {
if u := p.Uint64(); u != x {
t.Errorf("ChaCha8 #%d = %#x, want %#x", i, u, x)
}
}
p.Seed(chacha8seed)
for i, x := range chacha8output {
if u := p.Uint64(); u != x {
t.Errorf("ChaCha8 #%d = %#x, want %#x", i, u, x)
}
}
}
func TestChaCha8Marshal(t *testing.T) {
p := NewChaCha8(chacha8seed)
for i, x := range chacha8output {
enc, err := p.MarshalBinary()
if err != nil {
t.Fatalf("#%d: MarshalBinary: %v", i, err)
}
if string(enc) != chacha8marshal[i] {
t.Fatalf("#%d: MarshalBinary=%q, want %q", i, enc, chacha8marshal[i])
}
*p = ChaCha8{}
if err := p.UnmarshalBinary(enc); err != nil {
t.Fatalf("#%d: UnmarshalBinary: %v", i, err)
}
if u := p.Uint64(); u != x {
t.Errorf("ChaCha8 #%d = %#x, want %#x", i, u, x)
}
}
}
func BenchmarkChaCha8(b *testing.B) {
p := NewChaCha8([32]byte{1, 2, 3, 4, 5})
var t uint64
for n := b.N; n > 0; n-- {
t += p.Uint64()
}
Sink = t
}
// Golden output test to make sure algorithm never changes,
// so that its use in math/rand/v2 stays stable.
var chacha8seed = [32]byte([]byte("ABCDEFGHIJKLMNOPQRSTUVWXYZ123456"))
var chacha8output = []uint64{
0xb773b6063d4616a5, 0x1160af22a66abc3c, 0x8c2599d9418d287c, 0x7ee07e037edc5cd6,
0xcfaa9ee02d1c16ad, 0x0e090eef8febea79, 0x3c82d271128b5b3e, 0x9c5addc11252a34f,
0xdf79bb617d6ceea6, 0x36d553591f9d736a, 0xeef0d14e181ee01f, 0x089bfc760ae58436,
0xd9e52b59cc2ad268, 0xeb2fb4444b1b8aba, 0x4f95c8a692c46661, 0xc3c6323217cae62c,
0x91ebb4367f4e2e7e, 0x784cf2c6a0ec9bc6, 0x5c34ec5c34eabe20, 0x4f0a8f515570daa8,
0xfc35dcb4113d6bf2, 0x5b0da44c645554bc, 0x6d963da3db21d9e1, 0xeeaefc3150e500f3,
0x2d37923dda3750a5, 0x380d7a626d4bc8b0, 0xeeaf68ede3d7ee49, 0xf4356695883b717c,
0x846a9021392495a4, 0x8e8510549630a61b, 0x18dc02545dbae493, 0x0f8f9ff0a65a3d43,
0xccf065f7190ff080, 0xfd76d1aa39673330, 0x95d232936cba6433, 0x6c7456d1070cbd17,
0x462acfdaff8c6562, 0x5bafab866d34fc6a, 0x0c862f78030a2988, 0xd39a83e407c3163d,
0xc00a2b7b45f22ebf, 0x564307c62466b1a9, 0x257e0424b0c072d4, 0x6fb55e99496c28fe,
0xae9873a88f5cd4e0, 0x4657362ac60d3773, 0x1c83f91ecdf23e8e, 0x6fdc0792c15387c0,
0x36dad2a30dfd2b5c, 0xa4b593290595bdb7, 0x4de18934e4cc02c5, 0xcdc0d604f015e3a7,
0xfba0dbf69ad80321, 0x60e8bea3d139de87, 0xd18a4d851ef48756, 0x6366447c2215f34a,
0x05682e97d3d007ee, 0x4c0e8978c6d54ab2, 0xcf1e9f6a6712edc2, 0x061439414c80cfd3,
0xd1a8b6e2745c0ead, 0x31a7918d45c410e8, 0xabcc61ad90216eec, 0x4040d92d2032a71a,
0x3cd2f66ffb40cd68, 0xdcd051c07295857a, 0xeab55cbcd9ab527e, 0x18471dce781bdaac,
0xf7f08cd144dc7252, 0x5804e0b13d7f40d1, 0x5cb1a446e4b2d35b, 0xe6d4a728d2138a06,
0x05223e40ca60dad8, 0x2d61ec3206ac6a68, 0xab692356874c17b8, 0xc30954417676de1c,
0x4f1ace3732225624, 0xfba9510813988338, 0x997f200f52752e11, 0x1116aaafe86221fa,
0x07ce3b5cb2a13519, 0x2956bc72bc458314, 0x4188b7926140eb78, 0x56ca6dbfd4adea4d,
0x7fe3c22349340ce5, 0x35c08f9c37675f8a, 0x11e1c7fbef5ed521, 0x98adc8464ec1bc75,
0xd163b2c73d1203f8, 0x8c761ee043a2f3f3, 0x24b99d6accecd7b7, 0x793e31aa112f0370,
0x8e87dc2a19285139, 0x4247ae04f7096e25, 0x514f3122926fe20f, 0xdc6fb3f045d2a7e9,
0x15cb30cecdd18eba, 0xcbc7fdecf6900274, 0x3fb5c696dc8ba021, 0xd1664417c8d274e6,
0x05f7e445ea457278, 0xf920bbca1b9db657, 0x0c1950b4da22cb99, 0xf875baf1af09e292,
0xbed3d7b84250f838, 0xf198e8080fd74160, 0xc9eda51d9b7ea703, 0xf709ef55439bf8f6,
0xd20c74feebf116fc, 0x305668eb146d7546, 0x829af3ec10d89787, 0x15b8f9697b551dbc,
0xfc823c6c8e64b8c9, 0x345585e8183b40bc, 0x674b4171d6581368, 0x1234d81cd670e9f7,
0x0e505210d8a55e19, 0xe8258d69eeeca0dc, 0x05d4c452e8baf67e, 0xe8dbe30116a45599,
0x1cf08ce1b1176f00, 0xccf7d0a4b81ecb49, 0x303fea136b2c430e, 0x861d6c139c06c871,
0x5f41df72e05e0487, 0x25bd7e1e1ae26b1d, 0xbe9f4004d662a41d, 0x65bf58d483188546,
0xd1b27cff69db13cc, 0x01a6663372c1bb36, 0x578dd7577b727f4d, 0x19c78f066c083cf6,
0xdbe014d4f9c391bb, 0x97fbb2dd1d13ffb3, 0x31c91e0af9ef8d4f, 0x094dfc98402a43ba,
0x069bd61bea37b752, 0x5b72d762e8d986ca, 0x72ee31865904bc85, 0xd1f5fdc5cd36c33e,
0xba9b4980a8947cad, 0xece8f05eac49ab43, 0x65fe1184abae38e7, 0x2d7cb9dea5d31452,
0xcc71489476e467e3, 0x4c03a258a578c68c, 0x00efdf9ecb0fd8fc, 0x9924cad471e2666d,
0x87f8668318f765e9, 0xcb4dc57c1b55f5d8, 0xd373835a86604859, 0xe526568b5540e482,
0x1f39040f08586fec, 0xb764f3f00293f8e6, 0x049443a2f6bd50a8, 0x76fec88697d3941a,
0x3efb70d039bae7a2, 0xe2f4611368eca8a8, 0x7c007a96e01d2425, 0xbbcce5768e69c5bf,
0x784fb4985c42aac3, 0xf72b5091aa223874, 0x3630333fb1e62e07, 0x8e7319ebdebbb8de,
0x2a3982bca959fa00, 0xb2b98b9f964ba9b3, 0xf7e31014adb71951, 0xebd0fca3703acc82,
0xec654e2a2fe6419a, 0xb326132d55a52e2c, 0x2248c57f44502978, 0x32710c2f342daf16,
0x0517b47b5acb2bec, 0x4c7a718fca270937, 0xd69142bed0bcc541, 0xe40ebcb8ff52ce88,
0x3e44a2dbc9f828d4, 0xc74c2f4f8f873f58, 0x3dbf648eb799e45b, 0x33f22475ee0e86f8,
0x1eb4f9ee16d47f65, 0x40f8d2b8712744e3, 0xb886b4da3cb14572, 0x2086326fbdd6f64d,
0xcc3de5907dd882b9, 0xa2e8b49a5ee909df, 0xdbfb8e7823964c10, 0x70dd6089ef0df8d5,
0x30141663cdd9c99f, 0x04b805325c240365, 0x7483d80314ac12d6, 0x2b271cb91aa7f5f9,
0x97e2245362abddf0, 0x5a84f614232a9fab, 0xf71125fcda4b7fa2, 0x1ca5a61d74b27267,
0x38cc6a9b3adbcb45, 0xdde1bb85dc653e39, 0xe9d0c8fa64f89fd4, 0x02c5fb1ecd2b4188,
0xf2bd137bca5756e5, 0xadefe25d121be155, 0x56cd1c3c5d893a8e, 0x4c50d337beb65bb9,
0x918c5151675cf567, 0xaba649ffcfb56a1e, 0x20c74ab26a2247cd, 0x71166bac853c08da,
0xb07befe2e584fc5d, 0xda45ff2a588dbf32, 0xdb98b03c4d75095e, 0x60285ae1aaa65a4c,
0xf93b686a263140b8, 0xde469752ee1c180e, 0xcec232dc04129aae, 0xeb916baa1835ea04,
0xd49c21c8b64388ff, 0x72a82d9658864888, 0x003348ef7eac66a8, 0x7f6f67e655b209eb,
0x532ffb0b7a941b25, 0xd940ade6128deede, 0xdf24f2a1af89fe23, 0x95aa3b4988195ae0,
0x3da649404f94be4a, 0x692dad132c3f7e27, 0x40aee76ecaaa9eb8, 0x1294a01e09655024,
0x6df797abdba4e4f5, 0xea2fb6024c1d7032, 0x5f4e0492295489fc, 0x57972914ea22e06a,
0x9a8137d133aad473, 0xa2e6dd6ae7cdf2f3, 0x9f42644f18086647, 0x16d03301c170bd3e,
0x908c416fa546656d, 0xe081503be22e123e, 0x077cf09116c4cc72, 0xcbd25cd264b7f229,
0x3db2f468ec594031, 0x46c00e734c9badd5, 0xd0ec0ac72075d861, 0x3037cb3cf80b7630,
0x574c3d7b3a2721c6, 0xae99906a0076824b, 0xb175a5418b532e70, 0xd8b3e251ee231ddd,
0xb433eec25dca1966, 0x530f30dc5cff9a93, 0x9ff03d98b53cd335, 0xafc4225076558cdf,
0xef81d3a28284402a, 0x110bdbf51c110a28, 0x9ae1b255d027e8f6, 0x7de3e0aa24688332,
0xe483c3ecd2067ee2, 0xf829328b276137e6, 0xa413ccad57562cad, 0xe6118e8b496acb1f,
0x8288dca6da5ec01f, 0xa53777dc88c17255, 0x8a00f1e0d5716eda, 0x618e6f47b7a720a8,
0x9e3907b0c692a841, 0x978b42ca963f34f3, 0x75e4b0cd98a7d7ef, 0xde4dbd6e0b5f4752,
0x0252e4153f34493f, 0x50f0e7d803734ef9, 0x237766a38ed167ee, 0x4124414001ee39a0,
0xd08df643e535bb21, 0x34f575b5a9a80b74, 0x2c343af87297f755, 0xcd8b6d99d821f7cb,
0xe376fd7256fc48ae, 0xe1b06e7334352885, 0xfa87b26f86c169eb, 0x36c1604665a971de,
0xdba147c2239c8e80, 0x6b208e69fc7f0e24, 0x8795395b6f2b60c3, 0x05dabee9194907f4,
0xb98175142f5ed902, 0x5e1701e2021ddc81, 0x0875aba2755eed08, 0x778d83289251de95,
0x3bfbe46a039ecb31, 0xb24704fce4cbd7f9, 0x6985ffe9a7c91e3d, 0xc8efb13df249dabb,
0xb1037e64b0f4c9f6, 0x55f69fd197d6b7c3, 0x672589d71d68a90c, 0xbebdb8224f50a77e,
0x3f589f80007374a7, 0xd307f4635954182a, 0xcff5850c10d4fd90, 0xc6da02dfb6408e15,
0x93daeef1e2b1a485, 0x65d833208aeea625, 0xe2b13fa13ed3b5fa, 0x67053538130fb68e,
0xc1042f6598218fa9, 0xee5badca749b8a2e, 0x6d22a3f947dae37d, 0xb62c6d1657f4dbaf,
0x6e007de69704c20b, 0x1af2b913fc3841d8, 0xdc0e47348e2e8e22, 0x9b1ddef1cf958b22,
0x632ed6b0233066b8, 0xddd02d3311bed8f2, 0xf147cfe1834656e9, 0x399aaa49d511597a,
0x6b14886979ec0309, 0x64fc4ac36b5afb97, 0xb82f78e07f7cf081, 0x10925c9a323d0e1b,
0xf451c79ee13c63f6, 0x7c2fc180317876c7, 0x35a12bd9eecb7d22, 0x335654a539621f90,
0xcc32a3f35db581f0, 0xc60748a80b2369cb, 0x7c4dd3b08591156b, 0xac1ced4b6de22291,
0xa32cfa2df134def5, 0x627108918dea2a53, 0x0555b1608fcb4ff4, 0x143ee7ac43aaa33c,
0xdae90ce7cf4fc218, 0x4d68fc2582bcf4b5, 0x37094e1849135d71, 0xf7857e09f3d49fd8,
0x007538c503768be7, 0xedf648ba2f6be601, 0xaa347664dd72513e, 0xbe63893c6ef23b86,
0x130b85710605af97, 0xdd765c6b1ef6ab56, 0xf3249a629a97dc6b, 0x2a114f9020fab8e5,
0x5a69e027cfc6ad08, 0x3c4ccb36f1a5e050, 0x2e9e7d596834f0a5, 0x2430be6858fce789,
0xe90b862f2466e597, 0x895e2884f159a9ec, 0x26ab8fa4902fcb57, 0xa6efff5c54e1fa50,
0x333ac4e5811a8255, 0xa58d515f02498611, 0xfe5a09dcb25c6ef4, 0x03898988ab5f5818,
0x289ff6242af6c617, 0x3d9dd59fd381ea23, 0x52d7d93d8a8aae51, 0xc76a123d511f786f,
0xf68901edaf00c46c, 0x8c630871b590de80, 0x05209c308991e091, 0x1f809f99b4788177,
0x11170c2eb6c19fd8, 0x44433c779062ba58, 0xc0acb51af1874c45, 0x9f2e134284809fa1,
0xedb523bd15c619fa, 0x02d97fd53ecc23c0, 0xacaf05a34462374c, 0xddd9c6d34bffa11f,
}
var chacha8marshal = []string{
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x00ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x01ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x02ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x03ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x04ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x05ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x06ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\aABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\bABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\tABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\nABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\vABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\fABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\rABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x0eABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x0fABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x10ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x11ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x12ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x13ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x14ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x15ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x16ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x17ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x18ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x19ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1aABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1bABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1cABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1dABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1eABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1fABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00 ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00!ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\"ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00#ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00$ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00%ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00&ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00'ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00(ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00)ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00*ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00+ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00,ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00-ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00.ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00/ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x000ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x001ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x002ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x003ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x004ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x005ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x006ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x007ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x008ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x009ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00:ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00;ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00<ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00=ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00>ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00?ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
"chacha8:\x00\x00\x00\x00\x00\x00\x00@ABCDEFGHIJKLMNOPQRSTUVWXYZ123456",
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"chacha8:\x00\x00\x00\x00\x00\x00\x00\fK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\rK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x0eK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x0fK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x10K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x11K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x12K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x13K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x14K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x15K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x16K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x17K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x18K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x19K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1aK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1bK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1cK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1dK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1eK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\x1fK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00 K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00!K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\"K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00#K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00$K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00%K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00&K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00'K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00(K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00)K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00*K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00+K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00,K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00-K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00.K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00/K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x000K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x001K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x002K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x003K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x004K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x005K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x006K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x007K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x008K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x009K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00:K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00;K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00<K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00=K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00>K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00?K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00@K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00AK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00BK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00CK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00DK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00EK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00FK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00GK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00HK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00IK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00JK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00KK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00LK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00MK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00NK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00OK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00PK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00QK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00RK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00SK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00TK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00UK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00VK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00WK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00XK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00YK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00ZK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00[K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00\\K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00]K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00^K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00_K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00`K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00aK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00bK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00cK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00dK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00eK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00fK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00gK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00hK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00iK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00jK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00kK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00lK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00mK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00nK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00oK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00pK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00qK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00rK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00sK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00tK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00uK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00vK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00wK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00xK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00yK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00zK3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
"chacha8:\x00\x00\x00\x00\x00\x00\x00{K3\x9bB!,\x94\x9d\x975\xce'O_t\xee|\xb21\x87\xbb\xbb\xfd)\x8f\xe52\x01\vP\fk",
}