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rust-secp256k1-unsafe-fast
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fuzz: disable sig-grinding tests, prevent spin-looping

This commit is contained in:
Andrew Poelstra 2020-12-28 18:55:33 +00:00
parent 96862b6a74
commit d1714ce0ac
1 changed files with 9 additions and 0 deletions
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9
src/lib.rs
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@ -736,6 +736,10 @@ impl<C: Signing> Secp256k1<C> {
} }
entropy_p = extra_entropy.as_ptr() as *const ffi::types::c_void; entropy_p = extra_entropy.as_ptr() as *const ffi::types::c_void;
// When fuzzing, these checks will usually spinloop forever, so just short-circuit them.
#[cfg(rust_secp_fuzz)]
return Signature::from(ret);
} }
} }
} }
@ -1098,9 +1102,12 @@ mod tests {
if compact[0] < 0x80 { if compact[0] < 0x80 {
assert_eq!(sig, low_r_sig); assert_eq!(sig, low_r_sig);
} else { } else {
#[cfg(not(rust_secp_fuzz))] // mocked sig generation doesn't produce low-R sigs
assert_ne!(sig, low_r_sig); assert_ne!(sig, low_r_sig);
} }
#[cfg(not(rust_secp_fuzz))] // mocked sig generation doesn't produce low-R sigs
assert!(super::compact_sig_has_zero_first_bit(&low_r_sig.0)); assert!(super::compact_sig_has_zero_first_bit(&low_r_sig.0));
#[cfg(not(rust_secp_fuzz))] // mocked sig generation doesn't produce low-R sigs
assert!(super::der_length_check(&grind_r_sig.0, 70)); assert!(super::der_length_check(&grind_r_sig.0, 70));
} }
} }
@ -1195,6 +1202,7 @@ mod tests {
} }
#[test] #[test]
#[cfg(not(rust_secp_fuzz))] // fuzz-sigs have fixed size/format
fn test_low_r() { fn test_low_r() {
let secp = Secp256k1::new(); let secp = Secp256k1::new();
let msg = hex!("887d04bb1cf1b1554f1b268dfe62d13064ca67ae45348d50d1392ce2d13418ac"); let msg = hex!("887d04bb1cf1b1554f1b268dfe62d13064ca67ae45348d50d1392ce2d13418ac");
@ -1209,6 +1217,7 @@ mod tests {
} }
#[test] #[test]
#[cfg(not(rust_secp_fuzz))] // fuzz-sigs have fixed size/format
fn test_grind_r() { fn test_grind_r() {
let secp = Secp256k1::new(); let secp = Secp256k1::new();
let msg = hex!("ef2d5b9a7c61865a95941d0f04285420560df7e9d76890ac1b8867b12ce43167"); let msg = hex!("ef2d5b9a7c61865a95941d0f04285420560df7e9d76890ac1b8867b12ce43167");