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What Is?
A digital signature is like a virtual fingerprint that proves:
1. Who sent a message or document (authenticity)
2. The content wasn't changed or tampered with (integrity)
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How It Works?
1. A unique code is created from the content.
2. The code is encrypted with the sender's secret key.
3. The recipient decrypts the code and checks it matches the content.
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Benifits
1. Secure and trustworthy
2. Convenient and easy to use
3. Legally binding
4. Protects against tampering and cyber attacks
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History Of Digital Signature
1. 1970s: The concept of digital signatures emerged with the development of public-key cryptography.
2. 1990s: Digital signatures became more widely used with the introduction of cryptographic algorithms like RSA.
3. 2000s: Governments and industries began adopting digital signatures for secure online transactions.
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Used
1. Online documents and contracts
2. Software downloads
3. Financial transactions
4. Government services
5. Healthcare records
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8 reads
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