trait HasCryptographicEvidence extends HasVersionedToByteString
Trait for deterministically serializing an object to a com.google.protobuf.ByteString.
A class should extend this trait to indicate that the serialize method yields the same ByteString if invoked
several times.
Typical use cases of this behavior include:
- Classes that represent a leaf of a Merkle tree.
- Classes that represent content that is signed e.g. Hash or SignedProtocolMessageContent.
- Classes that are mere wrappers of ByteString (for convenience of the caller) e.g. AuthenticationToken.
If a class merely represents content that is transmitted over a network, the class does not need to extend this trait.
It is strongly recommended to extend this trait by mixing in MemoizedEvidence or MemoizedEvidenceWithFailure, instead of directly extending this trait.
Classes C implementing HasCryptographicEvidence must define a
fromByteString: ByteString => C method in their companion object
that converts a serialization back into an equal object.
In particular, c.fromByteString(byteString).toByteString must equal byteString.
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- abstract def getCryptographicEvidence: ByteString
Returns the serialization of the object into a com.google.protobuf.ByteString.
Returns the serialization of the object into a com.google.protobuf.ByteString. In particular, every instance
iof this trait must equalfromByteString(i.toByteString).This method must yield the same result if it is invoked several times.
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- def toByteString(version: ProtocolVersion): ByteString
Returns the serialization of the object into a com.google.protobuf.ByteString.
Returns the serialization of the object into a com.google.protobuf.ByteString. This method may yield different results if it is invoked several times.
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- HasCryptographicEvidence → HasVersionedToByteString
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