Automatically download and load sprout parameters (#3085)
* Download and load Sprout parameters using zcash_proofs Also update some librustzcash dependencies, to avoid duplicate dependencies. * Update upstream orchard to avoid a compilation error * Skip librustzcash batch refactor for now, to avoid compilation errors * Change the cache ID, so we actually cache Sprout * Move existing file checks into zcash_proofs * Add a 1 hour timeout to parameter file downloads * Give other tasks priority, before spawning the download task * Update to the latest version of our modified librustzcash fork * Change the cache key for Sprout * Add 40 minutes to CI timeouts for occasional sprout downloads * Update to zcash_proofs with split downloads * Check file sizes to help debug parameter load failures in zcash_proofs * Start the second download once the first has finished in zcash_proofs * Document the parameter download task * Stop hashing existing files twice
This commit is contained in:
teor
GitHub
parent
a61eae0065
commit
0ef4629232
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@ -11,8 +11,10 @@ jobs:
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test:
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name: Test (+${{ matrix.rust }}) on ${{ matrix.os }}
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# The large timeout is to accommodate Windows builds
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timeout-minutes: 75
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# The large timeout is to accommodate:
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# - Windows builds (75 minutes, typically 30-50 minutes)
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# - parameter downloads (40 minutes, but only when the cache expires)
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timeout-minutes: 115
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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@ -87,7 +89,7 @@ jobs:
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uses: actions/cache@v2
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with:
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path: ${{ env.ZCASH_PARAMS }}
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key: ${{ runner.os }}-params
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key: ${{ runner.os }}-sprout-and-sapling-params
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- name: Fetch Zcash parameters
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if: steps.cache-params.outputs.cache-hit != 'true'
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working-directory: ./zebra-consensus
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@ -13,8 +13,10 @@ jobs:
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coverage:
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name: Coverage (+nightly)
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# The large timeout is to accommodate nightly builds
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timeout-minutes: 60
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# The large timeout is to accommodate:
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# - nightly builds (75 minutes, typically 30-50 minutes)
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# - parameter downloads (40 minutes, but only when the cache expires)
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timeout-minutes: 115
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runs-on: ubuntu-latest
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env:
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CARGO_INCREMENTAL: 0
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@ -62,7 +64,7 @@ jobs:
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uses: actions/cache@v2
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with:
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path: ${{ env.ZCASH_PARAMS }}
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key: ${{ runner.os }}-params
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key: ${{ runner.os }}-sprout-and-sapling-params
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- name: Fetch Zcash parameters
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if: steps.cache-params.outputs.cache-hit != 'true'
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working-directory: ./zebra-consensus
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@ -1086,7 +1086,7 @@ dependencies = [
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[[package]]
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name = "equihash"
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version = "0.1.0"
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source = "git+https://github.com/zcash/librustzcash.git?rev=53d0a51d33a421cb76d3e3124d1e4c1c9036068e#53d0a51d33a421cb76d3e3124d1e4c1c9036068e"
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source = "git+https://github.com/ZcashFoundation/librustzcash.git?rev=dea8d97d5ed09bdb6673cb64d0a63706f71c2f61#dea8d97d5ed09bdb6673cb64d0a63706f71c2f61"
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dependencies = [
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"blake2b_simd",
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"byteorder",
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@ -4181,7 +4181,7 @@ dependencies = [
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[[package]]
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name = "zcash_encoding"
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version = "0.0.0"
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source = "git+https://github.com/zcash/librustzcash.git?rev=53d0a51d33a421cb76d3e3124d1e4c1c9036068e#53d0a51d33a421cb76d3e3124d1e4c1c9036068e"
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source = "git+https://github.com/ZcashFoundation/librustzcash.git?rev=dea8d97d5ed09bdb6673cb64d0a63706f71c2f61#dea8d97d5ed09bdb6673cb64d0a63706f71c2f61"
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dependencies = [
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"byteorder",
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"nonempty",
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@ -4190,7 +4190,7 @@ dependencies = [
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[[package]]
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name = "zcash_history"
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version = "0.2.0"
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source = "git+https://github.com/zcash/librustzcash.git?rev=53d0a51d33a421cb76d3e3124d1e4c1c9036068e#53d0a51d33a421cb76d3e3124d1e4c1c9036068e"
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source = "git+https://github.com/ZcashFoundation/librustzcash.git?rev=dea8d97d5ed09bdb6673cb64d0a63706f71c2f61#dea8d97d5ed09bdb6673cb64d0a63706f71c2f61"
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dependencies = [
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"bigint",
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"blake2b_simd",
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@ -4200,7 +4200,7 @@ dependencies = [
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[[package]]
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name = "zcash_note_encryption"
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version = "0.0.0"
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source = "git+https://github.com/zcash/librustzcash.git?rev=53d0a51d33a421cb76d3e3124d1e4c1c9036068e#53d0a51d33a421cb76d3e3124d1e4c1c9036068e"
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source = "git+https://github.com/ZcashFoundation/librustzcash.git?rev=dea8d97d5ed09bdb6673cb64d0a63706f71c2f61#dea8d97d5ed09bdb6673cb64d0a63706f71c2f61"
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dependencies = [
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"blake2b_simd",
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"byteorder",
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@ -4215,7 +4215,7 @@ dependencies = [
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[[package]]
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name = "zcash_primitives"
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version = "0.5.0"
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source = "git+https://github.com/zcash/librustzcash.git?rev=53d0a51d33a421cb76d3e3124d1e4c1c9036068e#53d0a51d33a421cb76d3e3124d1e4c1c9036068e"
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source = "git+https://github.com/ZcashFoundation/librustzcash.git?rev=dea8d97d5ed09bdb6673cb64d0a63706f71c2f61#dea8d97d5ed09bdb6673cb64d0a63706f71c2f61"
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dependencies = [
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"aes",
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"bip0039",
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@ -4249,7 +4249,7 @@ dependencies = [
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[[package]]
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name = "zcash_proofs"
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version = "0.5.0"
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source = "git+https://github.com/zcash/librustzcash.git?rev=53d0a51d33a421cb76d3e3124d1e4c1c9036068e#53d0a51d33a421cb76d3e3124d1e4c1c9036068e"
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source = "git+https://github.com/ZcashFoundation/librustzcash.git?rev=dea8d97d5ed09bdb6673cb64d0a63706f71c2f61#dea8d97d5ed09bdb6673cb64d0a63706f71c2f61"
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dependencies = [
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"bellman",
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"blake2b_simd",
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28
Cargo.toml
28
Cargo.toml
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@ -22,11 +22,21 @@ panic = "abort"
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[patch.crates-io]
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# TODO: replace with upstream orchard when these changes are merged
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# https://github.com/ZcashFoundation/zebra/issues/3056
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# TODO: replace with upstream orchard (#3056)
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orchard = { git = "https://github.com/ZcashFoundation/orchard.git", rev = "568e24cd5f129158375d7ac7d98c89ebff4f982f" }
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# TODO: remove these after a new librustzcash release.
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# TODO: replace with upstream librustzcash when these changes are merged (#3037)
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#
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# This zcash_proofs patch doesn't work, maybe because of features?
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#zcash_proofs = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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# Use the ZcashFoundation fork where possible, to avoid duplicate dependencies
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equihash = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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zcash_note_encryption = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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zcash_primitives = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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zcash_history = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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# TODO: remove these after a new librustzcash release (#2982)
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# These are librustzcash git requirements specified in its workspace Cargo.toml,
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# that we must replicate here
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@ -34,13 +44,15 @@ incrementalmerkletree = { git = "https://github.com/zcash/incrementalmerkletree.
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# Replaced by the ZcashFoundation fork above
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#orchard = { git = "https://github.com/zcash/orchard.git", rev = "2c8241f25b943aa05203eacf9905db117c69bd29" }
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# Replaced by the ZcashFoundation fork above
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# These are librustzcash file requirements specified in its workspace Cargo.toml,
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# that we must replace with git requirements
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zcash_note_encryption = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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#zcash_note_encryption = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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# These patches are not strictly required,
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# but they help avoid duplicate dependencies
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equihash = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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zcash_history = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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zcash_primitives = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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zcash_proofs = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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#equihash = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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#zcash_history = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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#zcash_primitives = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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#zcash_proofs = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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@ -33,7 +33,6 @@ hex = "0.4"
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incrementalmerkletree = "0.1.0"
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jubjub = "0.8.0"
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lazy_static = "1.4.0"
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orchard = "0.0"
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rand_core = "0.6"
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ripemd160 = "0.9"
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secp256k1 = { version = "0.20.3", features = ["serde"] }
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@ -45,9 +44,15 @@ subtle = "2.4"
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thiserror = "1"
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uint = "0.9.1"
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x25519-dalek = { version = "1.2.0", features = ["serde"] }
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zcash_history = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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zcash_primitives = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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zcash_note_encryption = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e" }
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# TODO: replace with upstream orchard (#3056)
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orchard = { git = "https://github.com/ZcashFoundation/orchard.git", rev = "568e24cd5f129158375d7ac7d98c89ebff4f982f" }
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# TODO: replace with upstream librustzcash when these changes are merged (#3037)
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equihash = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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zcash_note_encryption = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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zcash_primitives = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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zcash_history = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61" }
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proptest = { version = "0.10", optional = true }
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proptest-derive = { version = "0.3.0", optional = true }
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@ -57,7 +62,6 @@ rand_chacha = { version = "0.3", optional = true }
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# ZF deps
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ed25519-zebra = "3.0.0"
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equihash = "0.1"
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# TODO: Update to 0.5 release when published
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redjubjub = { git = "https://github.com/ZcashFoundation/redjubjub.git", rev = "f772176560b0b7daf25eff2460e08dc127ac8407" }
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@ -17,9 +17,6 @@ jubjub = "0.8.0"
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rand = "0.8"
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halo2 = "=0.1.0-beta.1"
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# TODO: replace with upstream orchard when these changes are merged
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# https://github.com/ZcashFoundation/zebra/issues/3056
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orchard = "0.0.0"
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chrono = "0.4.19"
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dirs = "4.0.0"
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@ -37,7 +34,11 @@ tower = { version = "0.4.11", features = ["timeout", "util", "buffer"] }
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tracing = "0.1.29"
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tracing-futures = "0.2.5"
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zcash_proofs = { git = "https://github.com/zcash/librustzcash.git", rev = "53d0a51d33a421cb76d3e3124d1e4c1c9036068e", features = ["local-prover", "multicore", "download-params"] }
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# TODO: replace with upstream orchard (#3056)
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orchard = { git = "https://github.com/ZcashFoundation/orchard.git", rev = "568e24cd5f129158375d7ac7d98c89ebff4f982f" }
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# TODO: replace with upstream librustzcash when these changes are merged (#3037)
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zcash_proofs = { git = "https://github.com/ZcashFoundation/librustzcash.git", rev = "dea8d97d5ed09bdb6673cb64d0a63706f71c2f61", features = ["local-prover", "multicore", "download-params"] }
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tower-fallback = { path = "../tower-fallback/" }
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tower-batch = { path = "../tower-batch/" }
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@ -198,11 +198,13 @@ where
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S::Future: Send + 'static,
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{
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// Pre-download Groth16 parameters in a separate thread.
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// This thread must be launched first, so the download doesn't happen on the startup thread.
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// Give other tasks priority, before spawning the download task.
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tokio::task::yield_now().await;
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// The parameter download thread must be launched before initializing any verifiers.
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// Otherwise, the download might happen on the startup thread.
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let groth16_download_handle = spawn_blocking(|| {
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tracing::info!("checking if Zcash Sapling and Sprout parameters have been downloaded");
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// The lazy static initializer does the download, if needed,
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// and the file hash checks.
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lazy_static::initialize(&crate::groth16::GROTH16_PARAMETERS);
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|
|
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@ -5,6 +5,13 @@ use std::path::PathBuf;
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use bellman::groth16;
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use bls12_381::Bls12;
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||||
|
||||
/// The timeout for each parameter file download, in seconds.
|
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///
|
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/// Zebra assumes that it's running on at least a 10 Mbps connection.
|
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/// So the parameter files should download in about 15 minutes using `zebrad download`.
|
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/// But `zebrad start` downloads blocks at the same time, so we allow some extra time.
|
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pub const PARAMETER_DOWNLOAD_TIMEOUT: u64 = 60 * 60;
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lazy_static::lazy_static! {
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/// Groth16 Zero-Knowledge Proof parameters for the Sapling and Sprout circuits.
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||||
///
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|
@ -20,10 +27,28 @@ lazy_static::lazy_static! {
|
|||
}
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||||
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/// Groth16 Zero-Knowledge Proof parameters for the Sapling and Sprout circuits.
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#[non_exhaustive]
|
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pub struct Groth16Parameters {
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/// The Sapling circuit Groth16 parameters.
|
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pub sapling: SaplingParameters,
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|
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/// The Sprout circuit Groth16 spend parameter.
|
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pub sprout: SproutParameters,
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}
|
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|
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/// Groth16 Zero-Knowledge Proof spend and output parameters for the Sapling circuit.
|
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pub struct SaplingParameters {
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pub spend: groth16::Parameters<Bls12>,
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pub spend_prepared_verifying_key: groth16::PreparedVerifyingKey<Bls12>,
|
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|
||||
pub output: groth16::Parameters<Bls12>,
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||||
pub output_prepared_verifying_key: groth16::PreparedVerifyingKey<Bls12>,
|
||||
}
|
||||
|
||||
/// Groth16 Zero-Knowledge Proof spend parameters for the Sprout circuit.
|
||||
///
|
||||
/// New Sprout outputs were disabled by the Canopy network upgrade.
|
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pub struct SproutParameters {
|
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pub spend_prepared_verifying_key: groth16::PreparedVerifyingKey<Bls12>,
|
||||
}
|
||||
|
||||
impl Groth16Parameters {
|
||||
|
|
@ -33,9 +58,64 @@ impl Groth16Parameters {
|
|||
///
|
||||
/// If the downloaded or pre-existing parameter files are invalid.
|
||||
fn new() -> Groth16Parameters {
|
||||
Groth16Parameters {
|
||||
sapling: SaplingParameters::new(),
|
||||
let params_directory = Groth16Parameters::directory();
|
||||
let sapling_spend_path = params_directory.join(zcash_proofs::SAPLING_SPEND_NAME);
|
||||
let sapling_output_path = params_directory.join(zcash_proofs::SAPLING_OUTPUT_NAME);
|
||||
let sprout_path = params_directory.join(zcash_proofs::SPROUT_NAME);
|
||||
|
||||
// TODO: instead of the path check, add a zcash_proofs argument to skip hashing existing files
|
||||
// (we check them on load anyway)
|
||||
if !sapling_spend_path.exists() || !sapling_output_path.exists() {
|
||||
tracing::info!("downloading Zcash Sapling parameters");
|
||||
let new_sapling_paths =
|
||||
zcash_proofs::download_sapling_parameters(Some(PARAMETER_DOWNLOAD_TIMEOUT))
|
||||
.unwrap_or_else(|error| {
|
||||
panic!(
|
||||
"error downloading Sapling parameter files: {:?}. {}",
|
||||
error,
|
||||
Groth16Parameters::failure_hint()
|
||||
)
|
||||
});
|
||||
assert_eq!(sapling_spend_path, new_sapling_paths.spend);
|
||||
assert_eq!(sapling_output_path, new_sapling_paths.output);
|
||||
}
|
||||
|
||||
if !sprout_path.exists() {
|
||||
tracing::info!("downloading Zcash Sprout parameters");
|
||||
let new_sprout_path =
|
||||
zcash_proofs::download_sprout_parameters(Some(PARAMETER_DOWNLOAD_TIMEOUT))
|
||||
.unwrap_or_else(|error| {
|
||||
panic!(
|
||||
"error downloading Sprout parameter files: {:?}. {}",
|
||||
error,
|
||||
Groth16Parameters::failure_hint()
|
||||
)
|
||||
});
|
||||
assert_eq!(sprout_path, new_sprout_path);
|
||||
}
|
||||
|
||||
// TODO: if loading fails, log a message including `failure_hint`
|
||||
tracing::info!("checking and loading Zcash Sapling and Sprout parameters");
|
||||
let parameters = zcash_proofs::load_parameters(
|
||||
&sapling_spend_path,
|
||||
&sapling_output_path,
|
||||
Some(&sprout_path),
|
||||
);
|
||||
|
||||
let sapling = SaplingParameters {
|
||||
spend: parameters.spend_params,
|
||||
spend_prepared_verifying_key: parameters.spend_vk,
|
||||
output: parameters.output_params,
|
||||
output_prepared_verifying_key: parameters.output_vk,
|
||||
};
|
||||
|
||||
let sprout = SproutParameters {
|
||||
spend_prepared_verifying_key: parameters
|
||||
.sprout_vk
|
||||
.expect("unreachable code: sprout loader panics on failure"),
|
||||
};
|
||||
|
||||
Groth16Parameters { sapling, sprout }
|
||||
}
|
||||
|
||||
/// Returns the path to the Groth16 parameters directory.
|
||||
|
|
@ -51,52 +131,3 @@ impl Groth16Parameters {
|
|||
)
|
||||
}
|
||||
}
|
||||
|
||||
/// Groth16 Zero-Knowledge Proof spend and output parameters for the Sapling circuit.
|
||||
#[non_exhaustive]
|
||||
pub struct SaplingParameters {
|
||||
pub spend: groth16::Parameters<Bls12>,
|
||||
pub spend_prepared_verifying_key: groth16::PreparedVerifyingKey<Bls12>,
|
||||
|
||||
pub output: groth16::Parameters<Bls12>,
|
||||
pub output_prepared_verifying_key: groth16::PreparedVerifyingKey<Bls12>,
|
||||
}
|
||||
|
||||
impl SaplingParameters {
|
||||
/// Download if needed, cache, check, and load the Sapling Groth16 parameters.
|
||||
///
|
||||
/// # Panics
|
||||
///
|
||||
/// If the downloaded or pre-existing parameter files are invalid.
|
||||
fn new() -> SaplingParameters {
|
||||
// TODO: Sprout
|
||||
|
||||
let params_directory = Groth16Parameters::directory();
|
||||
let spend_path = params_directory.join("sapling-spend.params");
|
||||
let output_path = params_directory.join("sapling-output.params");
|
||||
|
||||
// Download parameters if needed.
|
||||
//
|
||||
// TODO: use try_exists when it stabilises, to exit early on permissions errors (#83186)
|
||||
if !spend_path.exists() || !output_path.exists() {
|
||||
tracing::info!("downloading Zcash Sapling parameters");
|
||||
zcash_proofs::download_parameters().unwrap_or_else(|_| {
|
||||
panic!(
|
||||
"error downloading parameter files. {}",
|
||||
Groth16Parameters::failure_hint()
|
||||
)
|
||||
});
|
||||
}
|
||||
|
||||
// TODO: if loading fails, log a message including `failure_hint`
|
||||
tracing::info!("checking and loading Zcash Sapling parameters");
|
||||
let parameters = zcash_proofs::load_parameters(&spend_path, &output_path, None);
|
||||
|
||||
SaplingParameters {
|
||||
spend: parameters.spend_params,
|
||||
spend_prepared_verifying_key: parameters.spend_vk,
|
||||
output: parameters.output_params,
|
||||
output_prepared_verifying_key: parameters.output_vk,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -19,6 +19,9 @@
|
|||
//! * verifies blocks using zebra-chain, then stores verified blocks in zebra-state
|
||||
//! * verifies mempool and block transactions using zebra-chain and zebra-script,
|
||||
//! and returns verified mempool transactions for mempool storage
|
||||
//! * Groth16 Parameters Download Task
|
||||
//! * downloads the Sprout and Sapling Groth16 circuit parameter files
|
||||
//! * finishes when the download is complete and the download file hashes have been checked
|
||||
//! * Inbound Service
|
||||
//! * handles requests from peers for network data, chain data, and mempool transactions
|
||||
//! * spawns download and verify tasks for each gossiped block
|
||||
|
|
|
|||
Loading…
Reference in New Issue