Method Detail

• toString

   String toString()

• equals

   boolean equals(Object o)

• hashCode

   int hashCode()

• toHex

   String toHex()

  Returns the hexadecimal notation of this point's canonical encoding.

• toBytes

   Array<byte> toBytes()

  Returns this point's canonical encoding.

• encode

   String encode()

  Encodes the point using the LazySodium's associated MessageEncoder.

• scalarMult

   Ristretto255.RistrettoPoint scalarMult(BigInteger n)

  Multiplies this point by a given scalar.

  Parameters:

  n - the scalar to multiply by

• times

   Ristretto255.RistrettoPoint times(BigInteger n)

  Multiplies this point by a given scalar.

  Parameters:

  n - the scalar to multiply by

• plus

   Ristretto255.RistrettoPoint plus(Ristretto255.RistrettoPoint other)

  Adds the given point to this point. Addition is commutative.

  Parameters:

  other - the point to add

• minus

   Ristretto255.RistrettoPoint minus(Ristretto255.RistrettoPoint other)

  Subtracts the given point from this point.

  Parameters:

  other - the point to subtract

• negate

   Ristretto255.RistrettoPoint negate()

  Returns the additive inverse of this point. This is equivalent to {@code 0 - p} where 0denotes the additive identity.

• zero

   static Ristretto255.RistrettoPoint zero(LazySodium ls)

  Returns the zero element (identity element) of the Ristretto255 group.

  Parameters:

  ls - the LazySodium instance

• random

   static Ristretto255.RistrettoPoint random(LazySodium ls)

  Returns a random element of the Ristretto255 group.

  Parameters:

  ls - the LazySodium instance

• base

   static Ristretto255.RistrettoPoint base(LazySodium ls)

  Returns the base point of the Ristretto255 group.

  Parameters:

  ls - the LazySodium instance

• fromHex

   static Ristretto255.RistrettoPoint fromHex(LazySodium ls, String hex)

  Creates a new RistrettoPoint from the hexadecimal representation. The hexadecimalrepresentation must be a valid canonical encoding.

  Parameters:

  ls - the LazySodium instance

  hex - the Ristretto255 canonical encoding in hexadecimal notation

• fromString

   static Ristretto255.RistrettoPoint fromString(LazySodium ls, String encoded)

  Creates a new RistrettoPoint from the encoded representation, using the LazySodium's associated MessageEncoder. The decoded bytes must be a validcanonical encoding.

  Parameters:

  ls - the LazySodium instance

  encoded - the encoded Ristretto255 point

• fromBytes

   static Ristretto255.RistrettoPoint fromBytes(LazySodium ls, Array<byte> bytes)

  Creates a new RistrettoPoint from the binary representation. The binaryrepresentation must be a valid canonical encoding.

  Parameters:

  ls - the LazySodium instance

  bytes - the Ristretto255 canonical encoding

• hashToPoint

   static Ristretto255.RistrettoPoint hashToPoint(LazySodium ls, String encodedInput)

  Maps the encoded input to a RistrettoPoint, using the LazySodium'sassociated MessageEncoder. The resulting bytes are hashed using SHA-512 andmapped to the Ristretto 255 group, using {@code crypto_code_ristretto255_from_hash},i.e. the standard hash-to-group algorithm.

  Parameters:

  ls - the LazySodium instance

  encodedInput - the encoded bytes

• hashToPoint

   static Ristretto255.RistrettoPoint hashToPoint(LazySodium ls, Array<byte> input)

  Maps the input to a RistrettoPoint, by calculating the SHA-512 hash andmapping it to the Ristretto 255 group, using {@code crypto_code_ristretto255_from_hash},i.e. the standard hash-to-group algorithm.

  Parameters:

  ls - the LazySodium instance

  input - the input bytes