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Diffstat (limited to 'readme.md')
| -rw-r--r-- | readme.md | 13 |
1 files changed, 13 insertions, 0 deletions
@@ -39,29 +39,37 @@ sQ in G2; public key s H(m) in G1; signature of m verify ; e(sQ, H(m)) = e(Q, s H(m)) ``` + +``` void bls::init(); ``` + Initialize this library. Call this once to use the other api. ``` void SecretKey::init(); ``` + Initialize the instance of SecretKey. `s` is a random number. ``` void SecretKey::getPublicKey(PublicKey& pub) const; ``` + Get public key `sQ` for the secret key `s`. ``` void SecretKey::sign(Sign& sign, const std::string& m) const ``` + Make sign `s H(m)` from message m. ``` bool Sign::verify(const PublicKey& pub, const std::string& m) const ``` + Verify sign with pub and m and return true if it is valid. + ``` e(sQ, H(m)) == e(Q, s H(m)) ``` @@ -71,12 +79,14 @@ e(sQ, H(m)) == e(Q, s H(m)) ``` void SecretKey::getMasterSecretKey(SecretKeyVec& msk, int k) const ``` + Prepare k-out-of-n secret sharing for the secret key. `msk[0]` is the original secret key `s` and `msk[i]` for i > 0 are random secret key. ``` void SecretKey::set(const SecretKeyVec& msk, int id) ``` + Make secret key f(id) from msk and id where f(x) = msk[0] + msk[1] x + ... + msk[k-1] x^{k-1}. You can make a public key `f(id)Q` from each secret key f(id) for id != 0 and sign a message. @@ -84,6 +94,7 @@ You can make a public key `f(id)Q` from each secret key f(id) for id != 0 and si ``` void Sign::recover(const SignVec& signVec); ``` + Collect k sign `f(id) H(m)` for a message m and recover the original signature `s H(m)` for the secret key `s`. ### PoP (Proof of Possesion) @@ -91,11 +102,13 @@ Collect k sign `f(id) H(m)` for a message m and recover the original signature ` ``` void SecretKey::getPop(Sign& pop, const PublicKey& pub) const ``` + Sign pub.getStr() and make a pop `s H(sQ)` ``` bool Sign::verify(const PublicKey& pub) const ``` + Verify a public key by pop. # License |