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* Check that the file containing the secret key is secret.

This commit is contained in:
Eelco Dolstra 2007-02-21 17:51:10 +00:00
parent bdadb98de8
commit 65f195f4c7
1 changed files with 14 additions and 1 deletions
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15
src/libstore/local-store.cc
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@ -718,6 +718,16 @@ struct HashAndWriteSink : Sink
#define EXPORT_MAGIC 0x4558494e
static void checkSecrecy(const Path & path)
{
struct stat st;
if (stat(path.c_str(), &st))
throw SysError(format("getting status of `%1%'") % path);
if ((st.st_mode & (S_IRWXG | S_IRWXO)) != 0)
throw Error(format("file `%1%' should be secret (inaccessible to everybody else)!") % path);
}
void LocalStore::exportPath(const Path & path, bool sign,
Sink & sink)
{
@ -756,11 +766,14 @@ void LocalStore::exportPath(const Path & path, bool sign,
Path hashFile = tmpDir + "/hash";
writeStringToFile(hashFile, printHash(hash));
Path secretKey = nixConfDir + "/signing-key.sec";
checkSecrecy(secretKey);
Strings args;
args.push_back("rsautl");
args.push_back("-sign");
args.push_back("-inkey");
args.push_back(nixConfDir + "/signing-key.sec");
args.push_back(secretKey);
args.push_back("-in");
args.push_back(hashFile);
string signature = runProgram("openssl", true, args);