Move signature support from NarInfo to ValidPathInfo
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11525377e1
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374198ad6d
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@ -1,4 +1,3 @@
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#include "crypto.hh"
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#include "globals.hh"
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#include "nar-info.hh"
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@ -104,15 +103,6 @@ std::string NarInfo::to_string() const
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return res;
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}
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std::string NarInfo::fingerprint() const
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{
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return
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"1;" + path + ";"
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+ printHashType(narHash.type) + ":" + printHash32(narHash) + ";"
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+ std::to_string(narSize) + ";"
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+ concatStringsSep(",", references);
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}
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Strings NarInfo::shortRefs() const
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{
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Strings refs;
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@ -121,18 +111,4 @@ Strings NarInfo::shortRefs() const
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return refs;
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}
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void NarInfo::sign(const SecretKey & secretKey)
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{
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sigs.insert(secretKey.signDetached(fingerprint()));
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}
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unsigned int NarInfo::checkSignatures(const PublicKeys & publicKeys) const
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{
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unsigned int good = 0;
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for (auto & sig : sigs)
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if (verifyDetached(fingerprint(), sig, publicKeys))
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good++;
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return good;
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}
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}
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@ -20,20 +20,6 @@ struct NarInfo : ValidPathInfo
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std::string to_string() const;
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/* Return a fingerprint of the store path to be used in binary
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cache signatures. It contains the store path, the base-32
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SHA-256 hash of the NAR serialisation of the path, the size of
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the NAR, and the sorted references. The size field is strictly
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speaking superfluous, but might prevent endless/excessive data
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attacks. */
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std::string fingerprint() const;
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void sign(const SecretKey & secretKey);
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/* Return the number of signatures on this .narinfo that were
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produced by one of the specified keys. */
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unsigned int checkSignatures(const PublicKeys & publicKeys) const;
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private:
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Strings shortRefs() const;
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@ -1,5 +1,6 @@
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#include "store-api.hh"
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#include "crypto.hh"
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#include "globals.hh"
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#include "store-api.hh"
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#include "util.hh"
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@ -309,6 +310,32 @@ void Store::exportPaths(const Paths & paths,
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}
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std::string ValidPathInfo::fingerprint() const
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{
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return
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"1;" + path + ";"
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+ printHashType(narHash.type) + ":" + printHash32(narHash) + ";"
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+ std::to_string(narSize) + ";"
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+ concatStringsSep(",", references);
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}
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void ValidPathInfo::sign(const SecretKey & secretKey)
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{
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sigs.insert(secretKey.signDetached(fingerprint()));
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}
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unsigned int ValidPathInfo::checkSignatures(const PublicKeys & publicKeys) const
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{
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unsigned int good = 0;
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for (auto & sig : sigs)
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if (verifyDetached(fingerprint(), sig, publicKeys))
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good++;
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return good;
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}
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}
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@ -2,6 +2,7 @@
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#include "hash.hh"
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#include "serialise.hh"
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#include "crypto.hh"
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#include <string>
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#include <limits>
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@ -112,6 +113,20 @@ struct ValidPathInfo
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&& narHash == i.narHash
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&& references == i.references;
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}
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/* Return a fingerprint of the store path to be used in binary
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cache signatures. It contains the store path, the base-32
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SHA-256 hash of the NAR serialisation of the path, the size of
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the NAR, and the sorted references. The size field is strictly
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speaking superfluous, but might prevent endless/excessive data
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attacks. */
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std::string fingerprint() const;
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void sign(const SecretKey & secretKey);
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/* Return the number of signatures on this .narinfo that were
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produced by one of the specified keys. */
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unsigned int checkSignatures(const PublicKeys & publicKeys) const;
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};
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typedef list<ValidPathInfo> ValidPathInfos;
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