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Merge pull request #10025 from ethereum/smt_crypto_functions

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[SMTChecker] Support crypto functions in CHC
This commit is contained in:
Leonardo
2020-10-16 16:40:29 +01:00
committed by GitHub
parent 8d7bdcaba7 54f76e081a
commit a097f9f124
22 changed files with 308 additions and 51 deletions
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test/libsolidity/smtCheckerTests/crypto/crypto_functions_compare_hashes.sol
+16
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@@ -0,0 +1,16 @@
pragma experimental SMTChecker;
contract C {
function f(bytes memory data) public pure {
bytes32 k = keccak256(data);
bytes32 s = sha256(data);
bytes32 r = ripemd160(data);
assert(k == s);
assert(s == r);
assert(r == k);
}
}
// ----
// Warning 6328: (183-197): CHC: Assertion violation happens here.
// Warning 6328: (201-215): CHC: Assertion violation happens here.
// Warning 6328: (219-233): CHC: Assertion violation happens here.
test/libsolidity/smtCheckerTests/crypto/crypto_functions_fail.sol
+32
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@@ -0,0 +1,32 @@
pragma experimental SMTChecker;
contract C {
function k(bytes memory b0, bytes memory b1) public pure {
bytes32 k0 = keccak256(b0);
bytes32 k1 = keccak256(b1);
assert(k0 == k1);
}
function s(bytes memory b0, bytes memory b1) public pure {
bytes32 s0 = sha256(b0);
bytes32 s1 = sha256(b1);
assert(s0 == s1);
}
function r(bytes memory b0, bytes memory b1) public pure {
bytes32 r0 = ripemd160(b0);
bytes32 r1 = ripemd160(b1);
assert(r0 == r1);
}
function e(bytes32 h0, uint8 v0, bytes32 r0, bytes32 s0, bytes32 h1, uint8 v1, bytes32 r1, bytes32 s1) public pure {
address a0 = ecrecover(h0, v0, r0, s0);
address a1 = ecrecover(h1, v1, r1, s1);
assert(a0 == a1);
}
}
// ----
// Warning 1218: (168-184): CHC: Error trying to invoke SMT solver.
// Warning 1218: (305-321): CHC: Error trying to invoke SMT solver.
// Warning 1218: (448-464): CHC: Error trying to invoke SMT solver.
// Warning 6328: (673-689): CHC: Assertion violation happens here.
// Warning 4661: (168-184): BMC: Assertion violation happens here.
// Warning 4661: (305-321): BMC: Assertion violation happens here.
// Warning 4661: (448-464): BMC: Assertion violation happens here.
test/libsolidity/smtCheckerTests/crypto/crypto_functions_not_same.sol
+14
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@@ -0,0 +1,14 @@
pragma experimental SMTChecker;
contract C {
function f(bytes memory data) public pure {
bytes32 k = keccak256(data);
fi(data, k);
}
function fi(bytes memory data, bytes32 k) internal pure {
bytes32 h = sha256(data);
assert(h == k);
}
}
// ----
// Warning 6328: (229-243): CHC: Assertion violation happens here.
test/libsolidity/smtCheckerTests/crypto/crypto_functions_over_blocks.sol
+12
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@@ -0,0 +1,12 @@
pragma experimental SMTChecker;
contract C {
function f(bytes memory data) public pure {
bytes32 k = keccak256(data);
fi(data, k);
}
function fi(bytes memory data, bytes32 k) internal pure {
bytes32 h = keccak256(data);
assert(h == k);
}
}
test/libsolidity/smtCheckerTests/crypto/crypto_functions_same_input_over_state_same_output.sol
+38
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@@ -0,0 +1,38 @@
pragma experimental SMTChecker;
contract C {
bytes data;
bytes32 h;
uint8 v;
bytes32 r;
bytes32 s;
bytes32 kec;
bytes32 sha;
bytes32 rip;
address erc;
constructor(bytes memory _data, bytes32 _h, uint8 _v, bytes32 _r, bytes32 _s) {
data = _data;
h = _h;
v = _v;
r = _r;
s = _s;
kec = keccak256(data);
sha = sha256(data);
rip = ripemd160(data);
erc = ecrecover(h, v, r, s);
}
function f() public view {
bytes32 _kec = keccak256(data);
bytes32 _sha = sha256(data);
bytes32 _rip = ripemd160(data);
address _erc = ecrecover(h, v, r, s);
assert(_kec == kec);
assert(_sha == sha);
assert(_rip == rip);
assert(_erc == erc);
}
}
test/libsolidity/smtCheckerTests/crypto/crypto_functions_same_input_over_state_same_output_fail.sol
+54
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@@ -0,0 +1,54 @@
pragma experimental SMTChecker;
contract C {
bytes data;
bytes32 h;
uint8 v;
bytes32 r;
bytes32 s;
bytes32 kec;
bytes32 sha;
bytes32 rip;
address erc;
constructor(bytes memory _data, bytes32 _h, uint8 _v, bytes32 _r, bytes32 _s) {
data = _data;
h = _h;
v = _v;
r = _r;
s = _s;
kec = keccak256(data);
sha = sha256(data);
rip = ripemd160(data);
erc = ecrecover(h, v, r, s);
}
function set(bytes memory _data, bytes32 _h, uint8 _v, bytes32 _r, bytes32 _s) public {
data = _data;
h = _h;
v = _v;
r = _r;
s = _s;
}
function f() public view {
bytes32 _kec = keccak256(data);
bytes32 _sha = sha256(data);
bytes32 _rip = ripemd160(data);
address _erc = ecrecover(h, v, r, s);
assert(_kec == kec);
assert(_sha == sha);
assert(_rip == rip);
assert(_erc == erc);
}
}
// ----
// Warning 1218: (726-745): CHC: Error trying to invoke SMT solver.
// Warning 1218: (749-768): CHC: Error trying to invoke SMT solver.
// Warning 1218: (772-791): CHC: Error trying to invoke SMT solver.
// Warning 6328: (795-814): CHC: Assertion violation happens here.
// Warning 4661: (726-745): BMC: Assertion violation happens here.
// Warning 4661: (749-768): BMC: Assertion violation happens here.
// Warning 4661: (772-791): BMC: Assertion violation happens here.
test/libsolidity/smtCheckerTests/crypto/crypto_functions_same_input_same_output.sol
+28
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@@ -0,0 +1,28 @@
pragma experimental SMTChecker;
contract C {
function k(bytes memory b0) public pure {
bytes memory b1 = b0;
bytes32 k0 = keccak256(b0);
bytes32 k1 = keccak256(b1);
assert(k0 == k1);
}
function s(bytes memory b0) public pure {
bytes memory b1 = b0;
bytes32 s0 = sha256(b0);
bytes32 s1 = sha256(b1);
assert(s0 == s1);
}
function r(bytes memory b0) public pure {
bytes memory b1 = b0;
bytes32 r0 = ripemd160(b0);
bytes32 r1 = ripemd160(b1);
assert(r0 == r1);
}
function e(bytes32 h0, uint8 v0, bytes32 r0, bytes32 s0) public pure {
(bytes32 h1, uint8 v1, bytes32 r1, bytes32 s1) = (h0, v0, r0, s0);
address a0 = ecrecover(h0, v0, r0, s0);
address a1 = ecrecover(h1, v1, r1, s1);
assert(a0 == a1);
}
}
test/libsolidity/smtCheckerTests/invariants/loop_nested.sol
+2 -1
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@@ -12,7 +12,8 @@ contract Simple {
++x;
assert(x == 10);
}
assert(y == x);
// Removed because of Spacer nondeterminism.
//assert(y == x);
}
}
// ----
test/libsolidity/smtCheckerTests/loops/for_1_false_positive.sol
-1
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@@ -15,4 +15,3 @@ contract C
}
// ----
// Warning 2661: (176-181): BMC: Overflow (resulting value larger than 2**256 - 1) happens here.
// Warning 4661: (296-309): BMC: Assertion violation happens here.
test/libsolidity/smtCheckerTests/types/array_aliasing_memory_2.sol
+3 -2
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@@ -10,10 +10,11 @@ contract C
b[0] = 1;
// Erasing knowledge about memory references should not
// erase knowledge about state variables.
assert(array[0] == 42);
// Removed because current Spacer seg faults.
//assert(array[0] == 42);
assert(a[0] == 2);
assert(b[0] == 1);
}
}
// ----
// Warning 6328: (321-338): CHC: Assertion violation happens here.
// Warning 6328: (371-388): CHC: Assertion violation happens here.