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14 lines
1.3 KiB
Markdown
14 lines
1.3 KiB
Markdown
# Encryption
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### PLAIN
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No encryption. Encodes text directly.
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### SPECK32/64 ECB
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Block cipher in ECB mode. Each character is encrypted independently — identical plaintext characters produce identical ciphertext. Useful when you want varied-looking output from the same input, but **not secure under real threat models** since patterns in the plaintext leak through.
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### SPECK48/96 CTR
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Stream cipher mode with a random 24-bit nonce prepended to the output. Identical plaintexts produce different ciphertexts each time. Significantly more secure than ECB. **Rotate your password after roughly every 100 encryptions** to avoid nonce reuse risk within the 24-bit space.
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---
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Cipher test. Decrypt this sentence with the password 123.
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