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Author SHA1 Message Date
Preston Evans 0daaf582e2
Implement Trusted Vector Preallocation (#1920) 
* Implement SafePreallocate. Resolves #1880

* Add proptests for SafePreallocate

* Apply suggestions from code review

Comments which did not include replacement code will be addressed in a follow-up commit.

Co-authored-by: teor <teor@riseup.net>

* Rename [Safe-> Trusted]Allocate. Add doc and tests

Add tests to show that the largest allowed vec under TrustedPreallocate
is small enough to fit in a Zcash block/message (depending on type).
Add doc comments to all TrustedPreallocate test cases.
Tighten bounds on max_trusted_alloc for some types.

Note - this commit does NOT include TrustedPreallocate
impls for JoinSplitData, String, and Script.
These impls will be added in a follow up commit

* Implement SafePreallocate. Resolves #1880

* Add proptests for SafePreallocate

* Apply suggestions from code review

Comments which did not include replacement code will be addressed in a follow-up commit.

Co-authored-by: teor <teor@riseup.net>

* Rename [Safe-> Trusted]Allocate. Add doc and tests

Add tests to show that the largest allowed vec under TrustedPreallocate
is small enough to fit in a Zcash block/message (depending on type).
Add doc comments to all TrustedPreallocate test cases.
Tighten bounds on max_trusted_alloc for some types.

Note - this commit does NOT include TrustedPreallocate
impls for JoinSplitData, String, and Script.
These impls will be added in a follow up commit

* Impl TrustedPreallocate for Joinsplit

* Impl ZcashDeserialize for Vec<u8>

* Arbitrary, TrustedPreallocate, Serialize, and tests for Spend<SharedAnchor>

Co-authored-by: teor <teor@riseup.net>
 2021-04-06 09:49:42 +10:00
teor 609d70ae53 Stop untrusted preallocation during string deserialization 
This is an easy memory denial of service attack.
 2021-03-22 11:54:31 -04:00
Henry de Valence 1606b28d14 chain: add missing sources to SerializationError 2020-12-01 19:16:41 -08:00
Alfredo Garcia 128643d81e
Call `zebra_test::init` where needed. (#1227) 
* Add missing `zebra_test::init()` to zebra-chain
* Add missing `zebra_test::init()` to zebra-consensus
* Add missing `zebra_test::init()` to zebra-network
* Add missing `zebra_test::init()` to zebra-state
* Add missing `zebra_test::init()` to zebra-test
* Add missing `zebra_test::init()` to zebrad
 2020-11-10 10:29:25 +10:00
Ramana Venkata e90137e79b
Update sha2@0.9.1 (#938) 
* Update sha2@0.9.1

Fixes #915

* Update zebra-chain/src/sprout/keys.rs

Co-authored-by: Jane Lusby <jlusby42@gmail.com>

* Update zebra-chain/src/sprout/note/nullifiers.rs

Co-authored-by: Jane Lusby <jlusby42@gmail.com>
 2020-08-21 16:26:14 -07:00
Henry de Valence a35604aef3 chain: move amount to a top-level module. 2020-08-17 11:46:34 -07:00
Henry de Valence cee7d0b8eb chain: move serde_helpers into serialization. 2020-08-17 11:46:34 -07:00
Henry de Valence b36fe8f937 chain: move sha256d to serialization module. 
This extracts the SHA256d code from being split across two modules and puts it
in one module, under serialization.

The code is unchanged except for three deleted tests:

* `sha256d_flush` in `sha256d_writer` (not a meaningful test);
* `transactionhash_debug` (constructs an invalid transaction hash, and the
  behavior is tested in the next test);
* `decode_state_debug` (we do not need to test the Debug output of
  DecodeState);
 2020-08-17 11:46:34 -07:00
Henry de Valence 9f31e551c9 chain: split serialization.rs into files 
The code is unchanged except for removing an unneeded clippy annotation in proptests.rs.
 2020-08-17 11:46:34 -07:00