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ToBytes TL.Serialization helper.

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Warning: do not use for long-term storage because TL structures can change in future layers and may not be deserializable
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Wizou 2025-11-05 15:00:48 +01:00
parent 9ec2f31f72
commit d6fdcab440
4 changed files with 14 additions and 7 deletions
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5
src/Encryption.cs
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@ -247,10 +247,7 @@ 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 };
using var memStream = new MemoryStream(280);
using (var writer = new BinaryWriter(memStream))
writer.WriteTLObject(publicKey);
var bareData = memStream.ToArray();
var bareData = publicKey.ToBytes();
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}");