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* Don't check the signature unless we have to.

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This commit is contained in:
Eelco Dolstra 2007-03-01 12:30:24 +00:00
parent 2ea3bebc23
commit b4a040e52b
1 changed files with 20 additions and 18 deletions
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38
src/libstore/local-store.cc
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@ -840,27 +840,29 @@ Path LocalStore::importPath(bool requireSignature, Source & source)
if (haveSignature) {
string signature = readString(hashAndReadSource);
Path sigFile = tmpDir + "/sig";
writeStringToFile(sigFile, signature);
if (requireSignature) {
Path sigFile = tmpDir + "/sig";
writeStringToFile(sigFile, signature);
Strings args;
args.push_back("rsautl");
args.push_back("-verify");
args.push_back("-inkey");
args.push_back(nixConfDir + "/signing-key.pub");
args.push_back("-pubin");
args.push_back("-in");
args.push_back(sigFile);
string hash2 = runProgram("openssl", true, args);
Strings args;
args.push_back("rsautl");
args.push_back("-verify");
args.push_back("-inkey");
args.push_back(nixConfDir + "/signing-key.pub");
args.push_back("-pubin");
args.push_back("-in");
args.push_back(sigFile);
string hash2 = runProgram("openssl", true, args);
/* Note: runProgram() throws an exception if the signature is
invalid. */
/* Note: runProgram() throws an exception if the signature
is invalid. */
if (printHash(hash) != hash2)
throw Error(
"signed hash doesn't match actual contents of imported "
"archive; archive could be corrupt, or someone is trying "
"to import a Trojan horse");
if (printHash(hash) != hash2)
throw Error(
"signed hash doesn't match actual contents of imported "
"archive; archive could be corrupt, or someone is trying "
"to import a Trojan horse");
}
}
/* Do the actual import. */