18 lines
821 B
Text
18 lines
821 B
Text
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dhbitty is a small public key encryption program written in C. It
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uses elliptic curve Diffie-Hellman in the form of Curve25519 to
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establish a shared secret between two users, and uses that secret to
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symmetrically encrypt and authenticate messages.
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There are no private key files; only passphrases. Never lose that
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pesky thing again.
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Both the sender and the receiver can decrypt a message. In fact,
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there is no distinction between sender and receiver. Both passphrases
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must be strong.
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There is no signing. A similarly useful form of authentication occurs
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using only DH. dhbitty attempts to be as simple as possible. It is
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not optimized, but achieves a comfortable speed for most uses. It
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does not use floating point numbers, or integers longer than 32 bits.
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It does not contain more algorithms than are needed.
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