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Test nullifiers in constant time

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Checking for spent notes in a block is still not completely constant
time, due to filtering out negative results of the constant-time
comparison.

Part of #84.
This commit is contained in:
Jack Grigg
2019-08-22 00:57:04 +01:00
parent 2bbd25b36b
commit 1e2bc7f65c
3 changed files with 32 additions and 22 deletions
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7
Cargo.lock generated
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@@ -588,6 +588,11 @@ dependencies = [
"opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "subtle"
version = "2.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "syn"
version = "1.0.5"
@@ -645,6 +650,7 @@ dependencies = [
"rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_os 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"subtle 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
"zcash_primitives 0.1.0",
]
@@ -751,6 +757,7 @@ dependencies = [
"checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
"checksum sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b4d8bfd0e469f417657573d8451fb33d16cfe0989359b93baf3a1ffc639543d"
"checksum subtle 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ab3af2eb31c42e8f0ccf43548232556c42737e01a96db6e1777b0be108e79799"
"checksum syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "66850e97125af79138385e9b88339cbcd037e3f28ceab8c5ad98e64f0f1f80bf"
"checksum typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6d2783fe2d6b8c1101136184eb41be8b1ad379e4657050b8aaff0c79ee7575f9"
"checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"