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  1. package poseidon
  2. import (
  3. "encoding/hex"
  4. "math/big"
  5. "testing"
  6. "github.com/iden3/go-iden3-crypto/utils"
  7. "github.com/stretchr/testify/assert"
  8. "golang.org/x/crypto/blake2b"
  9. )
  10. func TestBlake2bVersion(t *testing.T) {
  11. h := blake2b.Sum256([]byte("poseidon_constants"))
  12. assert.Equal(t,
  13. "e57ba154fb2c47811dc1a2369b27e25a44915b4e4ece4eb8ec74850cb78e01b1",
  14. hex.EncodeToString(h[:]))
  15. }
  16. func TestPoseidonHash(t *testing.T) {
  17. b0 := big.NewInt(0)
  18. b1 := big.NewInt(1)
  19. b2 := big.NewInt(2)
  20. b3 := big.NewInt(3)
  21. b4 := big.NewInt(4)
  22. b5 := big.NewInt(5)
  23. b6 := big.NewInt(6)
  24. b7 := big.NewInt(7)
  25. b8 := big.NewInt(8)
  26. b9 := big.NewInt(9)
  27. b10 := big.NewInt(10)
  28. b11 := big.NewInt(11)
  29. b12 := big.NewInt(12)
  30. b13 := big.NewInt(13)
  31. b14 := big.NewInt(14)
  32. h, err := Hash([]*big.Int{b1})
  33. assert.Nil(t, err)
  34. assert.Equal(t,
  35. "18586133768512220936620570745912940619677854269274689475585506675881198879027",
  36. h.String())
  37. h, err = Hash([]*big.Int{b1, b2})
  38. assert.Nil(t, err)
  39. assert.Equal(t,
  40. "7853200120776062878684798364095072458815029376092732009249414926327459813530",
  41. h.String())
  42. h, err = Hash([]*big.Int{b1, b2, b0, b0, b0})
  43. assert.Nil(t, err)
  44. assert.Equal(t,
  45. "1018317224307729531995786483840663576608797660851238720571059489595066344487",
  46. h.String())
  47. h, err = Hash([]*big.Int{b1, b2, b0, b0, b0, b0})
  48. assert.Nil(t, err)
  49. assert.Equal(t,
  50. "15336558801450556532856248569924170992202208561737609669134139141992924267169",
  51. h.String())
  52. h, err = Hash([]*big.Int{b3, b4, b0, b0, b0})
  53. assert.Nil(t, err)
  54. assert.Equal(t,
  55. "5811595552068139067952687508729883632420015185677766880877743348592482390548",
  56. h.String())
  57. h, err = Hash([]*big.Int{b3, b4, b0, b0, b0, b0})
  58. assert.Nil(t, err)
  59. assert.Equal(t,
  60. "12263118664590987767234828103155242843640892839966517009184493198782366909018",
  61. h.String())
  62. h, err = Hash([]*big.Int{b1, b2, b3, b4, b5, b6})
  63. assert.Nil(t, err)
  64. assert.Equal(t,
  65. "20400040500897583745843009878988256314335038853985262692600694741116813247201",
  66. h.String())
  67. h, err = Hash([]*big.Int{b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14})
  68. assert.Nil(t, err)
  69. assert.Equal(t,
  70. "8354478399926161176778659061636406690034081872658507739535256090879947077494",
  71. h.String())
  72. h, err = Hash([]*big.Int{b1, b2, b3, b4, b5, b6, b7, b8, b9, b0, b0, b0, b0, b0})
  73. assert.Nil(t, err)
  74. assert.Equal(t,
  75. "5540388656744764564518487011617040650780060800286365721923524861648744699539",
  76. h.String())
  77. }
  78. func TestErrorInputs(t *testing.T) {
  79. b0 := big.NewInt(0)
  80. b1 := big.NewInt(1)
  81. b2 := big.NewInt(2)
  82. _, err := Hash([]*big.Int{b1, b2, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0})
  83. assert.Nil(t, err)
  84. _, err = Hash([]*big.Int{b1, b2, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0})
  85. assert.NotNil(t, err)
  86. assert.Equal(t, "invalid inputs length 15, max 14", err.Error())
  87. _, err = Hash([]*big.Int{b1, b2, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0, b0})
  88. assert.NotNil(t, err)
  89. assert.Equal(t, "invalid inputs length 16, max 14", err.Error())
  90. }
  91. func BenchmarkPoseidonHash(b *testing.B) {
  92. b0 := big.NewInt(0)
  93. b1 := utils.NewIntFromString("12242166908188651009877250812424843524687801523336557272219921456462821518061") //nolint:lll
  94. b2 := utils.NewIntFromString("12242166908188651009877250812424843524687801523336557272219921456462821518061") //nolint:lll
  95. bigArray4 := []*big.Int{b1, b2, b0, b0, b0, b0}
  96. for i := 0; i < b.N; i++ {
  97. Hash(bigArray4) //nolint:errcheck,gosec
  98. }
  99. }