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An implementation of Curve25519

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Rhys Weatherley
2015-03-12 18:59:55 +10:00
parent ccffa1ec87
commit 0f975de733
7 changed files with 1784 additions and 4 deletions
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14
doc/crypto.dox
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@@ -30,6 +30,7 @@
\li Block cipher modes: CTR, CFB, CBC, OFB
\li Stream ciphers: ChaCha
\li Hash algorithms: SHA1, SHA256, BLAKE2s
\li Public key algorithms: Curve25519
\li Random number generation: \link RNGClass RNG\endlink, TransistorNoiseSource
All cryptographic algorithms have been optimized for 8-bit Arduino platforms
@@ -49,10 +50,6 @@ with a 256-bit hash output. It is intended as a high performance drop-in
replacement for SHA256 for when speed is critical but exact SHA256
compatibility is not.
\section crypto_examples Examples
TBD
\section crypto_performance Performance
All figures are for the Arduino Uno running at 16 MHz. Figures for the
@@ -75,4 +72,13 @@ Where a cipher supports more than one key size (such as ChaCha), the values
are typically almost identical for 128-bit and 256-bit keys so only the
maximum is shown above.
Public key algorithms have the following results on an Arduino Uno:
<table>
<tr><td>Algorithm</td><td>Operation</td><td>Time</td><td>Comment</td></tr>
<tr><td>Curve25519</td><td>\link Curve25519::eval() eval()\endlink</td><td>3738 ms</td><td>Raw curve evaluation</td></tr>
<tr><td>Curve25519</td><td>\link Curve25519::dh1() dh1()\endlink</td><td>3740 ms</td><td>First half of Diffie-Hellman key agreement</td></tr>
<tr><td>Curve25519</td><td>\link Curve25519::dh2() dh2()\endlink</td><td>3738 ms</td><td>Second half of Diffie-Hellman key agreement</td></tr>
</table>
*/

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doc/mainpage.dox
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@@ -94,6 +94,7 @@ realtime clock and the LCD library to implement an alarm clock.
\li Block cipher modes: CTR, CFB, CBC, OFB
\li Stream ciphers: ChaCha
\li Hash algorithms: SHA1, SHA256, BLAKE2s
\li Public key algorithms: Curve25519
\li Random number generation: \link RNGClass RNG\endlink, TransistorNoiseSource
More information can be found on the \ref crypto "Cryptographic Library" page.