class ErgoLikeInterpreter extends Interpreter
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abstract
type
CTX <: ErgoLikeContext
- Definition Classes
- ErgoLikeInterpreter → Interpreter
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type
ProofT = UncheckedTree
- Definition Classes
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class
MutableCell[T] extends AnyRef
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Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
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implicit
val
IR: IRContext
- Definition Classes
- ErgoLikeInterpreter → Interpreter
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def
applyDeserializeContext(context: CTX, exp: Value[SType]): (BoolValue, CTX)
Substitute Deserialize* nodes with deserialized subtrees We can estimate cost of the tree evaluation only after this step.
Substitute Deserialize* nodes with deserialized subtrees We can estimate cost of the tree evaluation only after this step.
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final
def
asInstanceOf[T0]: T0
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def
calcResult(context: Context, calcF: sigmastate.eval.IRContext.Ref[(sigmastate.eval.IRContext.Context) ⇒ Any]): SigmaProp
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def
clone(): AnyRef
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val
computeCommitments: Strategy
Verifier Step 4: For every leaf node, compute the commitment a from the challenge e and response $z$, per the verifier algorithm of the leaf's Sigma-protocol.
Verifier Step 4: For every leaf node, compute the commitment a from the challenge e and response $z$, per the verifier algorithm of the leaf's Sigma-protocol. If the verifier algorithm of the Sigma-protocol for any of the leaves rejects, then reject the entire proof.
- Definition Classes
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def
deserializeMeasured(context: CTX, scriptBytes: Array[Byte]): (CTX, Value[SType])
Deserializes given script bytes using ValueSerializer (i.e.
Deserializes given script bytes using ValueSerializer (i.e. assuming expression tree format). It also measures tree complexity adding to the total estimated cost of script execution. The new returned context contains increased
initCost
and should be used for further processing.The method SHOULD be called only inside trySoftForkable scope, to make deserialization soft-forkable.
NOTE: While ErgoTree is always of type SigmaProp, ValueSerializer can serialize expression of any type. So it cannot be replaced with ErgoTreeSerializer here.
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
finalize(): Unit
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def
fullReduction(ergoTree: ErgoTree, context: CTX, env: ScriptEnv): (SigmaBoolean, Long)
Full reduction of initial expression given in the ErgoTree form to a SigmaBoolean value (which encodes whether a sigma-protocol proposition or a boolean value, so true or false).
Full reduction of initial expression given in the ErgoTree form to a SigmaBoolean value (which encodes whether a sigma-protocol proposition or a boolean value, so true or false).
Works as follows: 1) parse ErgoTree instance into a typed AST 2) go bottom-up the tree to replace DeserializeContext nodes only 3) estimate cost and reduce the AST to a SigmaBoolean instance (so sigma-tree or trivial boolean value)
- ergoTree
- input ErgoTree expression to reduce
- context
- context used in reduction
- env
- script environment
- returns
sigma boolean and the updated cost counter after reduction
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final
def
getClass(): Class[_]
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def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
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def
log: Logger
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val
logger: Logger
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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def
propositionFromErgoTree(ergoTree: ErgoTree, context: CTX): SigmaPropValue
Extracts proposition for ErgoTree handing soft-fork condition.
Extracts proposition for ErgoTree handing soft-fork condition.
- Definition Classes
- Interpreter
- Note
soft-fork handler
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def
reduceToCrypto(context: CTX, exp: Value[SType]): Try[ReductionResult]
- Definition Classes
- Interpreter
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def
reduceToCrypto(context: CTX, env: ScriptEnv, exp: Value[SType]): Try[ReductionResult]
This method is used in both prover and verifier to compute SigmaBoolean value.
This method is used in both prover and verifier to compute SigmaBoolean value. As the first step the cost of computing the
exp
expression in the given context is estimated. If cost is above limit then exception is returned andexp
is not executed elseexp
is computed in the given context and the resulting SigmaBoolean returned.- context
the context in which
exp
should be executed- env
environment of system variables used by the interpreter internally
- exp
expression to be executed in the given
context
- returns
result of script reduction
- Definition Classes
- Interpreter
- See also
ReductionResult
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def
substDeserialize(context: CTX, updateContext: (CTX) ⇒ Unit, node: SValue): Option[SValue]
- updateContext
call back to setup new context (with updated cost limit) to be passed next time
- Definition Classes
- ErgoLikeInterpreter → Interpreter
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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def
toValidScriptType(exp: SValue): BoolValue
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def
verify(ergoTree: ErgoTree, context: CTX, proof: ProofT, message: Array[Byte]): Try[VerificationResult]
- Definition Classes
- Interpreter
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def
verify(env: ScriptEnv, ergoTree: ErgoTree, context: CTX, proverResult: ProverResult, message: Array[Byte]): Try[VerificationResult]
- Definition Classes
- Interpreter
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def
verify(ergoTree: ErgoTree, context: CTX, proverResult: ProverResult, message: Array[Byte]): Try[VerificationResult]
- Definition Classes
- Interpreter
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def
verify(env: ScriptEnv, ergoTree: ErgoTree, context: CTX, proof: Array[Byte], message: Array[Byte]): Try[VerificationResult]
Executes the script in a given context.
Executes the script in a given context. Step 1: Deserialize context variables Step 2: Evaluate expression and produce SigmaProp value, which is zero-knowledge statement (see also
SigmaBoolean
). Step 3: Verify that the proof is presented to satisfy SigmaProp conditions.- env
environment of system variables used by the interpreter internally
- ergoTree
ErgoTree expression to execute in the given context and verify its result
- context
the context in which
exp
should be executed- proof
The proof of knowledge of the secrets which is expected by the resulting SigmaProp
- message
message bytes, which are used in verification of the proof
- returns
verification result or Exception. If if the estimated cost of execution of the
exp
exceeds the limit (given incontext
), then exception if thrown and packed in Try. If left component is false, then: 1) script executed to false or 2) the given proof failed to validate resulting SigmaProp conditions.
- Definition Classes
- Interpreter
- See also
reduceToCrypto
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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