* containers: add method to create new {Dict,Set,Array} with custom max_depth
* add vds_tree computation, update tree circuit interface
* add VDTree struct, add DEFAULT_VD_TREE, integrate it with MainPod,EmptyPod,frontend,etc.
* adapt frontend/serialization tests to new containers field (max_depth)
* adapt interfaces to allow using custom vd_tree in frontend & backend constructors
* rename VDTree to VDSet (and derivate namings too)
* containers 'new' always with param 'max_depth', use params.max_depth_mt_containers instead of the global constant MAX_DEPTH
* adapt after rebasing the branch to main latest changes
* apply review suggestions from @ed255
* use emptypod vd_mt_proofs (using vd_set as circuit input), merge the two existing set_targets methods of MainPodVerifyTarget
* document VDSet & vds_root
* calculate MainPod id in a dynamic-friendly way
The MainPod id is now calculated with front padding and a fixed size
independent of max_public_statements so that introduction gadgets can be
verified by a MainPod while paying only for the number of statements
they use. This is because with front padding of none-statements we can
precompute the poseidon state corresponding to absorbing all the padding
statements and only pay constraints for the non-padding statements.
The id is calculated as follows:
`id = hash(serialize(reverse(statements || none-statements)))`
* add time feature and disable timing by default
* apply suggestions from @arnaucube
* link issues in todos
* WIP
* WIP
* Working serialization for both Mock and Plonky2 versions of Signed and Main Pods
* Restore useful comment about serialized_proof()
* Use plonky2 serialization for signatures and proofs
* Add schema renames for Serialized SignedPod/MainPod types
* Break out utility function for generating common circuit data
* Review feedback fixes
* migrate from anyhow to thiserror (#190). pending polish error msgs
* Add backtrace and compartmentalize errors
- Include backtraces in the errors we generate. To get this we can't
just return a literal enum, because the backtrace requires a call.
- Related to the previous point: add methods to create errors so
we can include the backtrace conveniently without changing too much
the syntax. So instead of `Err(Error::KeyNotFound(key))` (literal
enum) it will be `Err(Error::key_not_found(key))` (method call)
- Each error should be local to its scope, and each scope should
only return its own error.
- The merkle tree should return `TreeError` and not Error
- The middleware should return `MiddlewareError` and not Error
- With a global Error we can't easily include backend/frontend types in
the error fields, so declare a `BackendError` and a `FrontendError`
and follow the pattern from the previous point
- The Pod traits should be able to return backend errors and will be
used in the frontend; for that we change them to use trait object
Error: `dyn std::error::Error`
* fix error
* apply suggestions from @arnaucube
* rename XError and XResult to Error and Result
* reorg signature
* make frontend custom error more ergonomic
* remove unnecessary feature
---------
Co-authored-by: Eduard S. <eduardsanou@posteo.net>
* unify fe/be NativeOp and NativePred
* remove Origin in favour of PodId
* Combine string and hash in Key
* use middleware::AnchoredKey in frontend
* merge frontend/middleware types
* refactor custom predicates
* clean up a bit
* fix middleware custom tests
* clean up
* clean up 2
* add acronyms in typos list
* add boolean selector to the MerkleProofGadget, to allow skipping proof verifications when all the slots are not used (eg. in the SignedPod circuit)
* move existing signedpod's circuits draft to its own file
* implement SignedPodVerify circuit
