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utils

package

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Versions in this module

v1

v1.0.3

Nov 23, 2023

Changes in this version

+ func Bytes32(x *big.Int) []byte

+ func Pad(x []byte, n int) []byte

v1.0.2

Nov 24, 2022

Changes in this version

+ const SaltSize

+ var ErrSmallSafePrime = errors.New("safe-prime size must be at least 10-bit")

+ var ErrSmallThreshold = errors.New("threshold < 2")

+ var File_github_com_getamis_alice_crypto_utils_message_proto protoreflect.FileDescriptor

+ func BinaryMul(c uint8, input []byte) []byte

+ func BitsToBytes(input []uint8) ([]byte, error)

+ func BytesToBits(data []byte) []uint8

+ func ExtendHashOutput(salt, message []byte, outputByteLength int) []byte

+ func FastMod3(number *big.Int) int

+ func GetAnyMsg(bs ...[]byte) []proto.Message

+ func HashBytesToInt(salt []byte, bs ...[]byte) (*big.Int, error)

+ func HashProtosRejectSampling(fieldOrder *big.Int, msgs ...proto.Message) (*big.Int, []byte, error)

+ func HashProtosToInt(salt []byte, msgs ...proto.Message) (*big.Int, error)

+ func RandomAbsoluteRangeInt(n *big.Int) (*big.Int, error)

+ func RandomAbsoluteRangeIntBySeed(salt []byte, message []byte, q *big.Int) *big.Int

+ func ReverseByte(s []byte) []byte

+ func ScalarMul(bit uint8, input []uint8) []uint8

+ func Xor(bigArray, smallArray []byte) []byte

type Hash

+ func (x *Hash) ProtoReflect() protoreflect.Message

+ type SafePrime struct

+ P *big.Int

+ Q *big.Int

+ func GenerateRandomSafePrime(rand io.Reader, pbits int) (*SafePrime, error)

v1.0.1

Apr 24, 2020

v1.0.0

Apr 10, 2020

Changes in this version

+ var ErrEmptySlice = errors.New("empty slice")

+ var ErrExceedMaxRetry = errors.New("exceed max retries")

+ var ErrInvalidInput = errors.New("invalid input")

+ var ErrLargeRank = errors.New("large rank")

+ var ErrLargeThreshold = errors.New("large threshold")

+ var ErrLargerFloor = errors.New("larger floor")

+ var ErrLessOrEqualBig2 = errors.New("less 2")

+ var ErrNotInRange = errors.New("not in range")

+ func EnsureFieldOrder(fieldOrder *big.Int) error

+ func EnsureRank(rank uint32, threshold uint32) error

+ func EnsureThreshold(threshold uint32, n uint32) error

+ func EulerFunction(primeFactor []*big.Int) (*big.Int, error)

+ func Gcd(a *big.Int, b *big.Int) *big.Int

+ func GenRandomBytes(size int) ([]byte, error)

+ func HashProtos(blake2bKey []byte, fieldOrder *big.Int, msgs ...proto.Message) (*big.Int, error)

+ func InRange(checkValue *big.Int, floor *big.Int, ceil *big.Int) error

+ func IsRelativePrime(a *big.Int, b *big.Int) bool

+ func Lcm(a, b *big.Int) (*big.Int, error)

+ func RandomCoprimeInt(n *big.Int) (*big.Int, error)

+ func RandomInt(n *big.Int) (*big.Int, error)

+ func RandomPositiveInt(n *big.Int) (*big.Int, error)

+ func RandomPrime(bits int) (*big.Int, error)

+ type Hash struct

+ Msgs []*any.Any

+ XXX_NoUnkeyedLiteral struct{}

+ XXX_sizecache int32

+ XXX_unrecognized []byte

+ func (*Hash) Descriptor() ([]byte, []int)

+ func (*Hash) ProtoMessage()

+ func (m *Hash) GetMsgs() []*any.Any

+ func (m *Hash) Reset()

+ func (m *Hash) String() string

+ func (m *Hash) XXX_DiscardUnknown()

+ func (m *Hash) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

+ func (m *Hash) XXX_Merge(src proto.Message)

+ func (m *Hash) XXX_Size() int

+ func (m *Hash) XXX_Unmarshal(b []byte) error