/
data.go
232 lines (204 loc) · 6.61 KB
/
data.go
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package panama
type panamaData struct {
state []uint32
gamma []uint32
pi []uint32
theta []uint32
}
// #define regs(i)
func NewData(n uint32) *panamaData {
data := &panamaData{}
data.state = make([]uint32, n)
data.gamma = make([]uint32, n)
data.pi = make([]uint32, n)
data.theta = make([]uint32, n)
return data
}
/* move state between memory and local registers */
func (this *panamaData) READ_STATE_i(i uint32, state IState) {
this.state[i] = state.Get(i)
}
func (this *panamaData) WRITE_STATE_i(i uint32, state IState) {
state.With(i, this.state[i])
}
func (this *panamaData) READ_STATE(state IState) {
this.READ_STATE_i(0, state)
this.READ_STATE_i(1, state)
this.READ_STATE_i(2, state)
this.READ_STATE_i(3, state)
this.READ_STATE_i(4, state)
this.READ_STATE_i(5, state)
this.READ_STATE_i(6, state)
this.READ_STATE_i(7, state)
this.READ_STATE_i(8, state)
this.READ_STATE_i(9, state)
this.READ_STATE_i(10, state)
this.READ_STATE_i(11, state)
this.READ_STATE_i(12, state)
this.READ_STATE_i(13, state)
this.READ_STATE_i(14, state)
this.READ_STATE_i(15, state)
this.READ_STATE_i(16, state)
}
func (this *panamaData) WRITE_STATE(state IState) {
this.WRITE_STATE_i(0, state)
this.WRITE_STATE_i(1, state)
this.WRITE_STATE_i(2, state)
this.WRITE_STATE_i(3, state)
this.WRITE_STATE_i(4, state)
this.WRITE_STATE_i(5, state)
this.WRITE_STATE_i(6, state)
this.WRITE_STATE_i(7, state)
this.WRITE_STATE_i(8, state)
this.WRITE_STATE_i(9, state)
this.WRITE_STATE_i(10, state)
this.WRITE_STATE_i(11, state)
this.WRITE_STATE_i(12, state)
this.WRITE_STATE_i(13, state)
this.WRITE_STATE_i(14, state)
this.WRITE_STATE_i(15, state)
this.WRITE_STATE_i(16, state)
}
/* gamma, shift-invariant transformation a[i] XOR (a[i+1] OR NOT a[i+2]) */
func (this *panamaData) GAMMA_i(i, i_plus_1, i_plus_2 uint32) {
this.gamma[i] = this.state[i] ^ (this.state[i_plus_1] | ^this.state[i_plus_2])
}
func (this *panamaData) GAMMA() {
this.GAMMA_i( 0, 1, 2)
this.GAMMA_i( 1, 2, 3)
this.GAMMA_i( 2, 3, 4)
this.GAMMA_i( 3, 4, 5)
this.GAMMA_i( 4, 5, 6)
this.GAMMA_i( 5, 6, 7)
this.GAMMA_i( 6, 7, 8)
this.GAMMA_i( 7, 8, 9)
this.GAMMA_i( 8, 9, 10)
this.GAMMA_i( 9, 10, 11)
this.GAMMA_i(10, 11, 12)
this.GAMMA_i(11, 12, 13)
this.GAMMA_i(12, 13, 14)
this.GAMMA_i(13, 14, 15)
this.GAMMA_i(14, 15, 16)
this.GAMMA_i(15, 16, 0)
this.GAMMA_i(16, 0, 1)
}
/* pi, permute and cyclicly rotate the state words */
func (this *panamaData) PI_i(i, j, k uint32) {
this.pi[i] = tau(this.gamma[j], k)
}
func (this *panamaData) PI() {
this.pi[0] = this.gamma[0]
this.PI_i( 1, 7, 1)
this.PI_i( 2, 14, 3)
this.PI_i( 3, 4, 6)
this.PI_i( 4, 11, 10)
this.PI_i( 5, 1, 15)
this.PI_i( 6, 8, 21)
this.PI_i( 7, 15, 28)
this.PI_i( 8, 5, 4)
this.PI_i( 9, 12, 13)
this.PI_i(10, 2, 23)
this.PI_i(11, 9, 2)
this.PI_i(12, 16, 14)
this.PI_i(13, 6, 27)
this.PI_i(14, 13, 9)
this.PI_i(15, 3, 24)
this.PI_i(16, 10, 8)
}
/* theta, shift-invariant transformation a[i] XOR a[i+1] XOR a[i+4] */
func (this *panamaData) THETA_i(i, i_plus_1, i_plus_4 uint32) {
this.theta[i] = this.pi[i] ^ this.pi[i_plus_1] ^ this.pi[i_plus_4]
}
func (this *panamaData) THETA() {
this.THETA_i( 0, 1, 4)
this.THETA_i( 1, 2, 5)
this.THETA_i( 2, 3, 6)
this.THETA_i( 3, 4, 7)
this.THETA_i( 4, 5, 8)
this.THETA_i( 5, 6, 9)
this.THETA_i( 6, 7, 10)
this.THETA_i( 7, 8, 11)
this.THETA_i( 8, 9, 12)
this.THETA_i( 9, 10, 13)
this.THETA_i(10, 11, 14)
this.THETA_i(11, 12, 15)
this.THETA_i(12, 13, 16)
this.THETA_i(13, 14, 0)
this.THETA_i(14, 15, 1)
this.THETA_i(15, 16, 2)
this.THETA_i(16, 0, 3)
}
/* sigma, merge two buffer stages with current state */
func (this *panamaData) SIGMA_L_i(i uint32, L IState) {
this.state[i] = this.theta[i] ^ L.Get(i-1)
}
func (this *panamaData) SIGMA_B_i(i uint32, b IState) {
this.state[i] = this.theta[i] ^ b.Get(i-9)
}
func (this *panamaData) SIGMA(L IState, b IState) {
this.state[0] = this.theta[0] ^ 0x00000001
this.SIGMA_L_i(1, L)
this.SIGMA_L_i(2, L)
this.SIGMA_L_i(3, L)
this.SIGMA_L_i(4, L)
this.SIGMA_L_i(5, L)
this.SIGMA_L_i(6, L)
this.SIGMA_L_i(7, L)
this.SIGMA_L_i(8, L)
this.SIGMA_B_i(9, b)
this.SIGMA_B_i(10, b)
this.SIGMA_B_i(11, b)
this.SIGMA_B_i(12, b)
this.SIGMA_B_i(13, b)
this.SIGMA_B_i(14, b)
this.SIGMA_B_i(15, b)
this.SIGMA_B_i(16, b)
}
/* lambda, update the 256-bit wide by 32-stage LFSR buffer */
func (this *panamaData) LAMBDA_25_i(i uint32, ptap_25 IState, ptap_0 IState) {
tmp := ptap_25.Get(i) ^ ptap_0.Get((i+2) & (PAN_STAGE_SIZE-1))
ptap_25.With(i, tmp)
}
func (this *panamaData) LAMBDA_0_i(i, source uint32, ptap_0 IState) {
tmp := source ^ ptap_0.Get(i)
ptap_0.With(i, tmp)
}
func (this *panamaData) LAMBDA_25_UPDATE(i uint32, ptap_25 IState, ptap_0 IState) {
this.LAMBDA_25_i(0, ptap_25, ptap_0)
this.LAMBDA_25_i(1, ptap_25, ptap_0)
this.LAMBDA_25_i(2, ptap_25, ptap_0)
this.LAMBDA_25_i(3, ptap_25, ptap_0)
this.LAMBDA_25_i(4, ptap_25, ptap_0)
this.LAMBDA_25_i(5, ptap_25, ptap_0)
this.LAMBDA_25_i(6, ptap_25, ptap_0)
this.LAMBDA_25_i(7, ptap_25, ptap_0)
}
func (this *panamaData) LAMBDA_0_PULL(ptap_0 IState) {
this.LAMBDA_0_i(0, this.state[1], ptap_0)
this.LAMBDA_0_i(1, this.state[2], ptap_0)
this.LAMBDA_0_i(2, this.state[3], ptap_0)
this.LAMBDA_0_i(3, this.state[4], ptap_0)
this.LAMBDA_0_i(4, this.state[5], ptap_0)
this.LAMBDA_0_i(5, this.state[6], ptap_0)
this.LAMBDA_0_i(6, this.state[7], ptap_0)
this.LAMBDA_0_i(7, this.state[8], ptap_0)
}
func (this *panamaData) LAMBDA_0_PUSH(ptap_0 IState, L IState) {
this.LAMBDA_0_i(0, L.Get(0), ptap_0)
this.LAMBDA_0_i(1, L.Get(1), ptap_0)
this.LAMBDA_0_i(2, L.Get(2), ptap_0)
this.LAMBDA_0_i(3, L.Get(3), ptap_0)
this.LAMBDA_0_i(4, L.Get(4), ptap_0)
this.LAMBDA_0_i(5, L.Get(5), ptap_0)
this.LAMBDA_0_i(6, L.Get(6), ptap_0)
this.LAMBDA_0_i(7, L.Get(7), ptap_0)
}
/* avoid temporary register for tap 31 by finishing updating tap 25 before updating tap 0 */
func (this *panamaData) LAMBDA_PULL(i uint32, ptap_25 IState, ptap_0 IState) {
this.LAMBDA_25_UPDATE(i, ptap_25, ptap_0)
this.LAMBDA_0_PULL(ptap_0)
}
func (this *panamaData) LAMBDA_PUSH(i uint32, ptap_25 IState, ptap_0 IState, L IState) {
this.LAMBDA_25_UPDATE(i, ptap_25, ptap_0)
this.LAMBDA_0_PUSH(ptap_0, L)
}