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zascon_generic.go
364 lines (327 loc) · 8.62 KB
/
zascon_generic.go
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// Code generated by pgen.go. DO NOT EDIT.
package ascon
import (
"encoding/binary"
"math/bits"
)
func additionalData128aGeneric(s *state, ad []byte) {
s0 := s.x0
s1 := s.x1
s2 := s.x2
s3 := s.x3
s4 := s.x4
for len(ad) >= BlockSize128a {
s0 ^= binary.BigEndian.Uint64(ad[0:8])
s1 ^= binary.BigEndian.Uint64(ad[8:16])
for C := uint64(180); C >= 74; C -= 15 {
// Round constant
s2 ^= C
// Substitution
s0 ^= s4
s4 ^= s3
s2 ^= s1
// Keccak S-box
t0 := s0 ^ (^s1 & s2)
t1 := s1 ^ (^s2 & s3)
t2 := s2 ^ (^s3 & s4)
t3 := s3 ^ (^s4 & s0)
t4 := s4 ^ (^s0 & s1)
// Substitution
t1 ^= t0
t0 ^= t4
t3 ^= t2
t2 = ^t2
// Linear diffusion
//
// x0 ← Σ0(x0) = x0 ⊕ (x0 ≫ 19) ⊕ (x0 ≫ 28)
s0 = t0 ^ bits.RotateLeft64(t0, -19) ^ bits.RotateLeft64(t0, -28)
// x1 ← Σ1(x1) = x1 ⊕ (x1 ≫ 61) ⊕ (x1 ≫ 39)
s1 = t1 ^ bits.RotateLeft64(t1, -61) ^ bits.RotateLeft64(t1, -39)
// x2 ← Σ2(x2) = x2 ⊕ (x2 ≫ 1) ⊕ (x2 ≫ 6)
s2 = t2 ^ bits.RotateLeft64(t2, -1) ^ bits.RotateLeft64(t2, -6)
// x3 ← Σ3(x3) = x3 ⊕ (x3 ≫ 10) ⊕ (x3 ≫ 17)
s3 = t3 ^ bits.RotateLeft64(t3, -10) ^ bits.RotateLeft64(t3, -17)
// x4 ← Σ4(x4) = x4 ⊕ (x4 ≫ 7) ⊕ (x4 ≫ 41)
s4 = t4 ^ bits.RotateLeft64(t4, -7) ^ bits.RotateLeft64(t4, -41)
}
ad = ad[BlockSize128a:]
}
s.x0 = s0
s.x1 = s1
s.x2 = s2
s.x3 = s3
s.x4 = s4
}
func encryptBlocks128aGeneric(s *state, dst, src []byte) {
s0 := s.x0
s1 := s.x1
s2 := s.x2
s3 := s.x3
s4 := s.x4
for len(src) >= BlockSize128a && len(dst) >= BlockSize128a {
s0 ^= binary.BigEndian.Uint64(src[0:8])
s1 ^= binary.BigEndian.Uint64(src[8:16])
binary.BigEndian.PutUint64(dst[0:8], s0)
binary.BigEndian.PutUint64(dst[8:16], s1)
for C := uint64(180); C >= 74; C -= 15 {
// Round constant
s2 ^= C
// Substitution
s0 ^= s4
s4 ^= s3
s2 ^= s1
// Keccak S-box
t0 := s0 ^ (^s1 & s2)
t1 := s1 ^ (^s2 & s3)
t2 := s2 ^ (^s3 & s4)
t3 := s3 ^ (^s4 & s0)
t4 := s4 ^ (^s0 & s1)
// Substitution
t1 ^= t0
t0 ^= t4
t3 ^= t2
t2 = ^t2
// Linear diffusion
//
// x0 ← Σ0(x0) = x0 ⊕ (x0 ≫ 19) ⊕ (x0 ≫ 28)
s0 = t0 ^ bits.RotateLeft64(t0, -19) ^ bits.RotateLeft64(t0, -28)
// x1 ← Σ1(x1) = x1 ⊕ (x1 ≫ 61) ⊕ (x1 ≫ 39)
s1 = t1 ^ bits.RotateLeft64(t1, -61) ^ bits.RotateLeft64(t1, -39)
// x2 ← Σ2(x2) = x2 ⊕ (x2 ≫ 1) ⊕ (x2 ≫ 6)
s2 = t2 ^ bits.RotateLeft64(t2, -1) ^ bits.RotateLeft64(t2, -6)
// x3 ← Σ3(x3) = x3 ⊕ (x3 ≫ 10) ⊕ (x3 ≫ 17)
s3 = t3 ^ bits.RotateLeft64(t3, -10) ^ bits.RotateLeft64(t3, -17)
// x4 ← Σ4(x4) = x4 ⊕ (x4 ≫ 7) ⊕ (x4 ≫ 41)
s4 = t4 ^ bits.RotateLeft64(t4, -7) ^ bits.RotateLeft64(t4, -41)
}
src = src[BlockSize128a:]
dst = dst[BlockSize128a:]
}
s.x0 = s0
s.x1 = s1
s.x2 = s2
s.x3 = s3
s.x4 = s4
}
func decryptBlocks128aGeneric(s *state, dst, src []byte) {
s0 := s.x0
s1 := s.x1
s2 := s.x2
s3 := s.x3
s4 := s.x4
for len(src) >= BlockSize128a && len(dst) >= BlockSize128a {
c0 := binary.BigEndian.Uint64(src[0:8])
c1 := binary.BigEndian.Uint64(src[8:16])
binary.BigEndian.PutUint64(dst[0:8], s0^c0)
binary.BigEndian.PutUint64(dst[8:16], s1^c1)
s0, s1 = c0, c1
for C := uint64(180); C >= 74; C -= 15 {
// Round constant
s2 ^= C
// Substitution
s0 ^= s4
s4 ^= s3
s2 ^= s1
// Keccak S-box
t0 := s0 ^ (^s1 & s2)
t1 := s1 ^ (^s2 & s3)
t2 := s2 ^ (^s3 & s4)
t3 := s3 ^ (^s4 & s0)
t4 := s4 ^ (^s0 & s1)
// Substitution
t1 ^= t0
t0 ^= t4
t3 ^= t2
t2 = ^t2
// Linear diffusion
//
// x0 ← Σ0(x0) = x0 ⊕ (x0 ≫ 19) ⊕ (x0 ≫ 28)
s0 = t0 ^ bits.RotateLeft64(t0, -19) ^ bits.RotateLeft64(t0, -28)
// x1 ← Σ1(x1) = x1 ⊕ (x1 ≫ 61) ⊕ (x1 ≫ 39)
s1 = t1 ^ bits.RotateLeft64(t1, -61) ^ bits.RotateLeft64(t1, -39)
// x2 ← Σ2(x2) = x2 ⊕ (x2 ≫ 1) ⊕ (x2 ≫ 6)
s2 = t2 ^ bits.RotateLeft64(t2, -1) ^ bits.RotateLeft64(t2, -6)
// x3 ← Σ3(x3) = x3 ⊕ (x3 ≫ 10) ⊕ (x3 ≫ 17)
s3 = t3 ^ bits.RotateLeft64(t3, -10) ^ bits.RotateLeft64(t3, -17)
// x4 ← Σ4(x4) = x4 ⊕ (x4 ≫ 7) ⊕ (x4 ≫ 41)
s4 = t4 ^ bits.RotateLeft64(t4, -7) ^ bits.RotateLeft64(t4, -41)
}
src = src[BlockSize128a:]
dst = dst[BlockSize128a:]
}
s.x0 = s0
s.x1 = s1
s.x2 = s2
s.x3 = s3
s.x4 = s4
}
func roundGeneric(s *state, C uint64) {
s0 := s.x0
s1 := s.x1
s2 := s.x2
s3 := s.x3
s4 := s.x4
// Round constant
s2 ^= C
// Substitution
s0 ^= s4
s4 ^= s3
s2 ^= s1
// Keccak S-box
t0 := s0 ^ (^s1 & s2)
t1 := s1 ^ (^s2 & s3)
t2 := s2 ^ (^s3 & s4)
t3 := s3 ^ (^s4 & s0)
t4 := s4 ^ (^s0 & s1)
// Substitution
t1 ^= t0
t0 ^= t4
t3 ^= t2
t2 = ^t2
// Linear diffusion
//
// x0 ← Σ0(x0) = x0 ⊕ (x0 ≫ 19) ⊕ (x0 ≫ 28)
s0 = t0 ^ bits.RotateLeft64(t0, -19) ^ bits.RotateLeft64(t0, -28)
// x1 ← Σ1(x1) = x1 ⊕ (x1 ≫ 61) ⊕ (x1 ≫ 39)
s1 = t1 ^ bits.RotateLeft64(t1, -61) ^ bits.RotateLeft64(t1, -39)
// x2 ← Σ2(x2) = x2 ⊕ (x2 ≫ 1) ⊕ (x2 ≫ 6)
s2 = t2 ^ bits.RotateLeft64(t2, -1) ^ bits.RotateLeft64(t2, -6)
// x3 ← Σ3(x3) = x3 ⊕ (x3 ≫ 10) ⊕ (x3 ≫ 17)
s3 = t3 ^ bits.RotateLeft64(t3, -10) ^ bits.RotateLeft64(t3, -17)
// x4 ← Σ4(x4) = x4 ⊕ (x4 ≫ 7) ⊕ (x4 ≫ 41)
s4 = t4 ^ bits.RotateLeft64(t4, -7) ^ bits.RotateLeft64(t4, -41)
s.x0 = s0
s.x1 = s1
s.x2 = s2
s.x3 = s3
s.x4 = s4
}
func p6Generic(s *state) {
s0 := s.x0
s1 := s.x1
s2 := s.x2
s3 := s.x3
s4 := s.x4
for C := uint64(150); C >= 74; C -= 15 {
// Round constant
s2 ^= C
// Substitution
s0 ^= s4
s4 ^= s3
s2 ^= s1
// Keccak S-box
t0 := s0 ^ (^s1 & s2)
t1 := s1 ^ (^s2 & s3)
t2 := s2 ^ (^s3 & s4)
t3 := s3 ^ (^s4 & s0)
t4 := s4 ^ (^s0 & s1)
// Substitution
t1 ^= t0
t0 ^= t4
t3 ^= t2
t2 = ^t2
// Linear diffusion
//
// x0 ← Σ0(x0) = x0 ⊕ (x0 ≫ 19) ⊕ (x0 ≫ 28)
s0 = t0 ^ bits.RotateLeft64(t0, -19) ^ bits.RotateLeft64(t0, -28)
// x1 ← Σ1(x1) = x1 ⊕ (x1 ≫ 61) ⊕ (x1 ≫ 39)
s1 = t1 ^ bits.RotateLeft64(t1, -61) ^ bits.RotateLeft64(t1, -39)
// x2 ← Σ2(x2) = x2 ⊕ (x2 ≫ 1) ⊕ (x2 ≫ 6)
s2 = t2 ^ bits.RotateLeft64(t2, -1) ^ bits.RotateLeft64(t2, -6)
// x3 ← Σ3(x3) = x3 ⊕ (x3 ≫ 10) ⊕ (x3 ≫ 17)
s3 = t3 ^ bits.RotateLeft64(t3, -10) ^ bits.RotateLeft64(t3, -17)
// x4 ← Σ4(x4) = x4 ⊕ (x4 ≫ 7) ⊕ (x4 ≫ 41)
s4 = t4 ^ bits.RotateLeft64(t4, -7) ^ bits.RotateLeft64(t4, -41)
}
s.x0 = s0
s.x1 = s1
s.x2 = s2
s.x3 = s3
s.x4 = s4
}
func p8Generic(s *state) {
s0 := s.x0
s1 := s.x1
s2 := s.x2
s3 := s.x3
s4 := s.x4
for C := uint64(180); C >= 74; C -= 15 {
// Round constant
s2 ^= C
// Substitution
s0 ^= s4
s4 ^= s3
s2 ^= s1
// Keccak S-box
t0 := s0 ^ (^s1 & s2)
t1 := s1 ^ (^s2 & s3)
t2 := s2 ^ (^s3 & s4)
t3 := s3 ^ (^s4 & s0)
t4 := s4 ^ (^s0 & s1)
// Substitution
t1 ^= t0
t0 ^= t4
t3 ^= t2
t2 = ^t2
// Linear diffusion
//
// x0 ← Σ0(x0) = x0 ⊕ (x0 ≫ 19) ⊕ (x0 ≫ 28)
s0 = t0 ^ bits.RotateLeft64(t0, -19) ^ bits.RotateLeft64(t0, -28)
// x1 ← Σ1(x1) = x1 ⊕ (x1 ≫ 61) ⊕ (x1 ≫ 39)
s1 = t1 ^ bits.RotateLeft64(t1, -61) ^ bits.RotateLeft64(t1, -39)
// x2 ← Σ2(x2) = x2 ⊕ (x2 ≫ 1) ⊕ (x2 ≫ 6)
s2 = t2 ^ bits.RotateLeft64(t2, -1) ^ bits.RotateLeft64(t2, -6)
// x3 ← Σ3(x3) = x3 ⊕ (x3 ≫ 10) ⊕ (x3 ≫ 17)
s3 = t3 ^ bits.RotateLeft64(t3, -10) ^ bits.RotateLeft64(t3, -17)
// x4 ← Σ4(x4) = x4 ⊕ (x4 ≫ 7) ⊕ (x4 ≫ 41)
s4 = t4 ^ bits.RotateLeft64(t4, -7) ^ bits.RotateLeft64(t4, -41)
}
s.x0 = s0
s.x1 = s1
s.x2 = s2
s.x3 = s3
s.x4 = s4
}
func p12Generic(s *state) {
s0 := s.x0
s1 := s.x1
s2 := s.x2
s3 := s.x3
s4 := s.x4
for C := uint64(240); C >= 74; C -= 15 {
// Round constant
s2 ^= C
// Substitution
s0 ^= s4
s4 ^= s3
s2 ^= s1
// Keccak S-box
t0 := s0 ^ (^s1 & s2)
t1 := s1 ^ (^s2 & s3)
t2 := s2 ^ (^s3 & s4)
t3 := s3 ^ (^s4 & s0)
t4 := s4 ^ (^s0 & s1)
// Substitution
t1 ^= t0
t0 ^= t4
t3 ^= t2
t2 = ^t2
// Linear diffusion
//
// x0 ← Σ0(x0) = x0 ⊕ (x0 ≫ 19) ⊕ (x0 ≫ 28)
s0 = t0 ^ bits.RotateLeft64(t0, -19) ^ bits.RotateLeft64(t0, -28)
// x1 ← Σ1(x1) = x1 ⊕ (x1 ≫ 61) ⊕ (x1 ≫ 39)
s1 = t1 ^ bits.RotateLeft64(t1, -61) ^ bits.RotateLeft64(t1, -39)
// x2 ← Σ2(x2) = x2 ⊕ (x2 ≫ 1) ⊕ (x2 ≫ 6)
s2 = t2 ^ bits.RotateLeft64(t2, -1) ^ bits.RotateLeft64(t2, -6)
// x3 ← Σ3(x3) = x3 ⊕ (x3 ≫ 10) ⊕ (x3 ≫ 17)
s3 = t3 ^ bits.RotateLeft64(t3, -10) ^ bits.RotateLeft64(t3, -17)
// x4 ← Σ4(x4) = x4 ⊕ (x4 ≫ 7) ⊕ (x4 ≫ 41)
s4 = t4 ^ bits.RotateLeft64(t4, -7) ^ bits.RotateLeft64(t4, -41)
}
s.x0 = s0
s.x1 = s1
s.x2 = s2
s.x3 = s3
s.x4 = s4
}