| Revise Encryption Setup |
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| Public
Key Encryption is based on |
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| publishing
the key |
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| Sender uses public key to encrypt |
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| Sender |
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| Encrypt
w/Kr |
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| Cipher Text Er(T) |
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| Receiver |
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| Decrypt
w/Kr |
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| Clear Text T |
| Clear Text T = Dr(Er(T)) |