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| author | Özgür Kesim <oec-taler@kesim.org> | 2022-03-08 11:47:51 +0100 |
|---|---|---|
| committer | Özgür Kesim <oec-taler@kesim.org> | 2022-03-08 11:47:51 +0100 |
| commit | cd5ee2338cd0c1d2923244d3ac2cc9695c5a8e25 (patch) | |
| tree | b67efcc47511f9bffb5163f5d5ca130a5c40c61f | |
| parent | ab3868f83ba8d90ab5a85938a0a9084dcb54b249 (diff) | |
| download | exchange-cd5ee2338cd0c1d2923244d3ac2cc9695c5a8e25.tar.gz exchange-cd5ee2338cd0c1d2923244d3ac2cc9695c5a8e25.tar.bz2 exchange-cd5ee2338cd0c1d2923244d3ac2cc9695c5a8e25.zip | |
-ensure label has no zero bytes
| -rw-r--r-- | src/util/age_restriction.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/util/age_restriction.c b/src/util/age_restriction.c index 58db23413..92143ad09 100644 --- a/src/util/age_restriction.c +++ b/src/util/age_restriction.c @@ -184,7 +184,12 @@ TALER_age_commitment_derive ( new->proof.num, struct TALER_AgeCommitmentPrivateKeyP); - memcpy (label, &salt, sizeof(salt)); + { + /* Because GNUNET_CRYPTO_ecdsa_public_key_derive expects char * (and calls + * strlen on it), we must avoid 0's in the label. */ + uint64_t nz_salt = salt | 0x8040201008040201; + memcpy (label, &nz_salt, sizeof(nz_salt)); + } /* 1. Derive the public keys */ for (size_t i = 0; i < orig->commitment.num; i++) |