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class SigSerializer extends AnyRef

Contains implementation of signature (aka proof) serialization.

See also

toProofBytes, parseAndComputeChallenges

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SigSerializer
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Instance Constructors

  1. new SigSerializer()

Value Members

  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. final val EvaluatePolynomial: OperationCostInfo[PerItemCost]

    Represents cost of: 1) evaluating a polynomial 2) obtaining GF2_192 instance 3) converting it to array of bytes

  5. final val ParseChallenge_ProveDHT: OperationCostInfo[FixedCost]

    Represents cost of parsing UncheckedDiffieHellmanTuple node from proof bytes.

  6. final val ParseChallenge_ProveDlog: OperationCostInfo[FixedCost]

    Represents cost of parsing UncheckedSchnorr node from proof bytes.

  7. final val ParsePolynomial: OperationCostInfo[PerItemCost]

    Represents cost of parsing GF2_192_Poly from proof bytes.

  8. final def asInstanceOf[T0]: T0
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  9. def clone(): AnyRef
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  10. final def eq(arg0: AnyRef): Boolean
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  11. def equals(arg0: Any): Boolean
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  12. def finalize(): Unit
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  13. final def getClass(): Class[_]
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  14. def hashCode(): Int
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    @native()
  15. val hashSize: Int

    A size of challenge in Sigma protocols, in bits.

  16. final def isInstanceOf[T0]: Boolean
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  17. final def ne(arg0: AnyRef): Boolean
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  18. final def notify(): Unit
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  19. final def notifyAll(): Unit
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  20. val order: Int

    Number of bytes to represent any group element as byte array

  21. def parseAndComputeChallenges(exp: SigmaBoolean, r: SigmaByteReader, challengeOpt: Challenge = null)(implicit E: ErgoTreeEvaluator): UncheckedSigmaTree

    Verifier Step 2: In a top-down traversal of the tree, obtain the challenges for the children of every non-leaf node by reading them from the proof or computing them.

    Verifier Step 2: In a top-down traversal of the tree, obtain the challenges for the children of every non-leaf node by reading them from the proof or computing them. Verifier Step 3: For every leaf node, read the response z provided in the proof.

    exp

    sigma proposition which defines the structure of bytes from the reader

    r

    reader to extract challenges from

    challengeOpt

    if non-empty, then the challenge has been computed for this node by its parent; else it needs to be read from the proof (via reader)

    E

    optional evaluator (can be null) which is used for profiling of operations. When E is null, then profiling is turned-off and has no effect on the execution.

    returns

    An instance of UncheckedSigmaTree HOTSPOT: don't beautify the code Note, null is used instead of Option to avoid allocations.

  22. def parseAndComputeChallenges(exp: SigmaBoolean, proof: Array[Byte])(implicit E: ErgoTreeEvaluator): UncheckedTree

    Verifier Step 2: In a top-down traversal of the tree, obtain the challenges for the children of every non-leaf node by reading them from the proof or computing them.

    Verifier Step 2: In a top-down traversal of the tree, obtain the challenges for the children of every non-leaf node by reading them from the proof or computing them. Verifier Step 3: For every leaf node, read the response z provided in the proof.

    exp

    sigma proposition which defines the structure of bytes from the reader

    proof

    proof to extract challenges from

    E

    optional evaluator (can be null) which is used for profiling of operations. When E is null, then profiling is turned-off and has no effect on the execution.

    returns

    An instance of UncheckedTree i.e. either NoProof or UncheckedSigmaTree

  23. def readBytesChecked(r: SigmaByteReader, numRequestedBytes: Int, onError: (String) ⇒ Unit): Array[Byte]

    Helper method to read requested or remaining bytes from the reader.

  24. final def synchronized[T0](arg0: ⇒ T0): T0
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  25. def toProofBytes(node: UncheckedSigmaTree, w: SigmaByteWriter, writeChallenge: Boolean): Unit

    Recursively traverses the given node and serializes challenges and prover messages to the given writer.

    Recursively traverses the given node and serializes challenges and prover messages to the given writer. Note, sigma propositions and commitments are not serialized.

    node

    subtree to traverse

    w

    writer to put the bytes

    writeChallenge

    if true, than node.challenge is serialized, and omitted otherwise.

  26. def toProofBytes(tree: UncheckedTree): Array[Byte]

    Recursively traverses the given node and serializes challenges and prover messages to the given writer.

    Recursively traverses the given node and serializes challenges and prover messages to the given writer. Note, sigma propositions and commitments are not serialized.

    tree

    tree to traverse and serialize

    returns

    the proof bytes containing all the serialized challenges and prover messages (aka z values)

  27. def toString(): String
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  28. final def wait(): Unit
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  29. final def wait(arg0: Long, arg1: Int): Unit
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  30. final def wait(arg0: Long): Unit
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  31. def warn(msg: String): Unit

    Log warning message using this class's logger.

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