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Merge pull request #98 from paracetamolo/optional-sprout-parameters 

Make initialization of sprout validation key optional
This commit is contained in:
str4d 2019-08-22 16:50:27 +01:00 committed by GitHub
parent 7b11d64cf9 37531ed747
commit 724e822d2d
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 28 additions and 13 deletions
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41
librustzcash/src/rustzcash.rs
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@ -143,9 +143,13 @@ pub extern "system" fn librustzcash_init_zksnark_params(
let output_path = Path::new(OsStr::from_bytes(unsafe {
slice::from_raw_parts(output_path, output_path_len)
}));
let sprout_path = Path::new(OsStr::from_bytes(unsafe {
slice::from_raw_parts(sprout_path, sprout_path_len)
}));
let sprout_path = if sprout_path.is_null() {
None
} else {
Some(Path::new(OsStr::from_bytes(unsafe {
slice::from_raw_parts(sprout_path, sprout_path_len)
})))
};
init_zksnark_params(
spend_path,
@ -174,8 +178,13 @@ pub extern "system" fn librustzcash_init_zksnark_params(
OsString::from_wide(unsafe { slice::from_raw_parts(spend_path, spend_path_len) });
let output_path =
OsString::from_wide(unsafe { slice::from_raw_parts(output_path, output_path_len) });
let sprout_path =
OsString::from_wide(unsafe { slice::from_raw_parts(sprout_path, sprout_path_len) });
let sprout_path = if sprout_path.is_null() {
None
} else {
Some(OsStr::from_wide(unsafe {
slice::from_raw_parts(sprout_path, sprout_path_len)
}))
};
init_zksnark_params(
Path::new(&spend_path),
@ -192,7 +201,7 @@ fn init_zksnark_params(
spend_hash: *const c_char,
output_path: &Path,
output_hash: *const c_char,
sprout_path: &Path,
sprout_path: Option<&Path>,
sprout_hash: *const c_char,
) {
// Initialize jubjub parameters here
@ -206,9 +215,15 @@ fn init_zksnark_params(
.to_str()
.expect("hash should be a valid string");
let sprout_hash = unsafe { CStr::from_ptr(sprout_hash) }
.to_str()
.expect("hash should be a valid string");
let sprout_hash = if sprout_path.is_none() {
None
} else {
Some(
unsafe { CStr::from_ptr(sprout_hash) }
.to_str()
.expect("hash should be a valid string"),
)
};
// Load params
let (spend_params, spend_vk, output_params, output_vk, sprout_vk) = load_parameters(
@ -216,8 +231,8 @@ fn init_zksnark_params(
spend_hash,
output_path,
output_hash,
Some(sprout_path),
Some(sprout_hash),
sprout_path,
sprout_hash,
);
// Caller is responsible for calling this function once, so
@ -225,11 +240,11 @@ fn init_zksnark_params(
unsafe {
SAPLING_SPEND_PARAMS = Some(spend_params);
SAPLING_OUTPUT_PARAMS = Some(output_params);
SPROUT_GROTH16_PARAMS_PATH = Some(sprout_path.to_owned());
SPROUT_GROTH16_PARAMS_PATH = sprout_path.map(|p| p.to_owned());
SAPLING_SPEND_VK = Some(spend_vk);
SAPLING_OUTPUT_VK = Some(output_vk);
SPROUT_GROTH16_VK = Some(sprout_vk.unwrap());
SPROUT_GROTH16_VK = sprout_vk;
}
}