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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 2774d2730f
commit 2bafc688ff
3 changed files with 32 additions and 22 deletions
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7
Cargo.lock generated
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@@ -493,6 +493,11 @@ dependencies = [
"opaque-debug 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "subtle"
version = "2.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "syn"
version = "0.14.9"
@@ -545,6 +550,7 @@ dependencies = [
"rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_os 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
"rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"subtle 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"zcash_primitives 0.0.0",
]
@@ -642,6 +648,7 @@ dependencies = [
"checksum rand_os 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ddb525a78d3a0b0e05b6fe0f7df14d7a4dc957944c7b403911ba5a0f1c694967"
"checksum rand_xorshift 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "77d416b86801d23dde1aa643023b775c3a462efc0ed96443add11546cdf1dca8"
"checksum sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b4d8bfd0e469f417657573d8451fb33d16cfe0989359b93baf3a1ffc639543d"
"checksum subtle 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "01f40907d9ffc762709e4ff3eb4a6f6b41b650375a3f09ac92b641942b7fb082"
"checksum syn 0.14.9 (registry+https://github.com/rust-lang/crates.io-index)" = "261ae9ecaa397c42b960649561949d69311f08eeaea86a65696e6e46517cf741"
"checksum typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "612d636f949607bdf9b123b4a6f6d966dedf3ff669f7f045890d3a4a73948169"
"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"