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call CollectField only if CollectAccessHash

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Wizou 2022-02-11 18:05:12 +01:00
parent 3fe9002f2e
commit 7570732a3f
3 changed files with 13 additions and 22 deletions
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8
src/Encryption.cs
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@ -213,9 +213,6 @@ namespace WTelegram
throw new ApplicationException("g^a or g^b is not between 2^{2048-64} and dh_prime - 2^{2048-64}");
}
[TLDef(0x7A19CB76)] //RSA_public_key#7a19cb76 n:bytes e:bytes = RSAPublicKey
public class RSAPublicKey : IObject { public byte[] n, e; }
public static void LoadPublicKey(string pem)
{
using var rsa = RSA.Create();
@ -224,7 +221,10 @@ namespace WTelegram
var rsaParam = rsa.ExportParameters(false);
if (rsaParam.Modulus[0] == 0) rsaParam.Modulus = rsaParam.Modulus[1..];
var publicKey = new RSAPublicKey { n = rsaParam.Modulus, e = rsaParam.Exponent };
var bareData = publicKey.Serialize(); // bare serialization
using var memStream = new MemoryStream(280);
using (var writer = new BinaryWriter(memStream))
writer.WriteTLObject(publicKey);
var bareData = memStream.ToArray();
var fingerprint = BinaryPrimitives.ReadInt64LittleEndian(sha1.ComputeHash(bareData, 4, bareData.Length - 4).AsSpan(12)); // 64 lower-order bits of SHA1
PublicKeys[fingerprint] = publicKey;
Helpers.Log(1, $"Loaded a public key with fingerprint {fingerprint:X}");