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Накладывания отметки времени к подписи
Здравствуйте. А можете подсказать, а как добавить чтобы добавляло еще отметку времени к подписи? Так как сейчас накладыват подпись без отметки времени
Пробовал в Методе sign в Signer, но тоже не помогло - отметку времени не захватывает
Добавить вот такой код
// Add trusted timestamp attribute (example: OID for timestamp)
attrnWriter.PushSequence(); // Attribute sequence
attrnWriter.WriteObjectIdentifier("1.2.840.113549.1.9.16.2.14");
byte[] trustedTimestamp = GetTrustedTimestampFromTSA();
attrnWriter.PushSetOf(); // SetOf for attribute value
attrnWriter.WriteOctetString(trustedTimestamp); // Include trusted timestamp
attrnWriter.PopSetOf();
attrnWriter.PopSequence();
asnWriter.PushSequence();
asnWriter.WriteObjectIdentifier("1.2.840.113549.1.9.16.2.14");
asnWriter.WriteOctetString(trustedTimestamp);
asnWriter.PopSequence();
private static byte[] GetTrustedTimestampFromTSA()
{
var timestamp = DateTimeOffset.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ");
return Encoding.ASCII.GetBytes(timestamp);
}
Добрый день. У меня есть ключ эцп и пароль, как мне подписать файл, подскажи пожалуйста алгоритм дейсвий, какие функции вызывать и в каком порядке?
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