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Crypto performance figures for Arduino Due

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Rhys Weatherley 2015-04-19 15:26:27 +10:00
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45
doc/crypto.dox
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@ -58,6 +58,8 @@ speed is critical but exact bit-compatibility of hash values is not.
\section crypto_performance Performance \section crypto_performance Performance
\subsection crypto_performance_avr Performance on AVR
All figures are for the Arduino Uno running at 16 MHz. Figures for the All figures are for the Arduino Uno running at 16 MHz. Figures for the
Ardunino Mega 2560 running at 16 MHz are similar: Ardunino Mega 2560 running at 16 MHz are similar:
@ -105,4 +107,47 @@ 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 are typically almost identical for 128-bit and 256-bit keys so only the
maximum is shown above. maximum is shown above.
\subsection crypto_performance_arm Performance on ARM
All figures are for the Arduino Due running at 84 MHz:
<table>
<tr><td>Encryption Algorithm</td><td align="right">Encryption (per byte)</td><td align="right">Decryption (per byte)</td><td>Key Setup</td><td>State Size (bytes)</td></tr>
<tr><td>AES128 (ECB mode)</td><td align="right">6.65us</td><td align="right">11.00us</td><td align="right">35.15us</td><td align="right">220</td></tr>
<tr><td>AES192 (ECB mode)</td><td align="right">8.02us</td><td align="right">13.31us</td><td align="right">36.59us</td><td align="right">252</td></tr>
<tr><td>AES256 (ECB mode)</td><td align="right">9.39us</td><td align="right">15.63</td><td align="right">50.19us</td><td align="right">284</td></tr>
<tr><td>ChaCha (20 rounds)</td><td align="right">0.87us</td><td align="right">0.88us</td><td align="right">4.96us</td><td align="right">136</td></tr>
<tr><td>ChaCha (12 rounds)</td><td align="right">0.70us</td><td align="right">0.71us</td><td align="right">4.96us</td><td align="right">136</td></tr>
<tr><td>ChaCha (8 rounds)</td><td align="right">0.62us</td><td align="right">0.62us</td><td align="right">4.96us</td><td align="right">136</td></tr>
<tr><td colspan="5"> </td></tr>
<tr><td>AEAD Algorithm</td><td align="right">Encryption (per byte)</td><td align="right">Decryption (per byte)</td><td>Key Setup</td><td>State Size (bytes)</td></tr>
<tr><td>ChaChaPoly</td><td align="right">1.66us</td><td align="right">1.66us</td><td align="right">45.02us</td><td align="right">280</td></tr>
<tr><td>GCM&lt;AES128&gt;</td><td align="right">11.01us</td><td align="right">10.92us</td><td align="right">247.90us</td><td align="right">344</td></tr>
<tr><td>GCM&lt;AES192&gt;</td><td align="right">12.40us</td><td align="right">12.31us</td><td align="right">294.07us</td><td align="right">376</td></tr>
<tr><td>GCM&lt;AES256&gt;</td><td align="right">13.73us</td><td align="right">13.64us</td><td align="right">347.40us</td><td align="right">408</td></tr>
<tr><td colspan="5"> </td></tr>
<tr><td>Hash Algorithm</td><td align="right">Hashing (per byte)</td><td align="right">Finalization</td><td> </td><td>State Size (bytes)</td></tr>
<tr><td>SHA1</td><td align="right">0.94us</td><td align="right">62.55us</td><td align="right"> </td><td align="right">112</td></tr>
<tr><td>SHA256</td><td align="right">1.15us</td><td align="right">76.60us</td><td align="right"> </td><td align="right">120</td></tr>
<tr><td>SHA512</td><td align="right">2.87us</td><td align="right">370.37us</td><td align="right"> </td><td align="right">224</td></tr>
<tr><td>SHA3_256</td><td align="right">5.36us</td><td align="right">697.65us</td><td align="right"> </td><td align="right">424</td></tr>
<tr><td>SHA3_512</td><td align="right">9.89us</td><td align="right">697.81us</td><td align="right"> </td><td align="right">424</td></tr>
<tr><td>BLAKE2s</td><td align="right">0.76us</td><td align="right">50.88us</td><td align="right"> </td><td align="right">184</td></tr>
<tr><td>BLAKE2b</td><td align="right">1.33us</td><td align="right">170.93us</td><td align="right"> </td><td align="right">352</td></tr>
<tr><td colspan="5"> </td></tr>
<tr><td>Authentication Algorithm</td><td align="right">Hashing (per byte)</td><td align="right">Finalization</td><td>Key Setup</td><td>State Size (bytes)</td></tr>
<tr><td>SHA1 (HMAC mode)</td><td align="right">0.94us</td><td align="right">193.92us</td><td align="right">65.09us</td><td align="right">112</td></tr>
<tr><td>SHA256 (HMAC mode)</td><td align="right">1.15us</td><td align="right">238.98us</td><td align="right">80.44us</td><td align="right">120</td></tr>
<tr><td>BLAKE2s (HMAC mode)</td><td align="right">0.76us</td><td align="right">165.64us</td><td align="right">59.92us</td><td align="right">184</td></tr>
<tr><td>Poly1305</td><td align="right">0.85us</td><td align="right">19.25us</td><td align="right">2.35us</td><td align="right">96</td></tr>
<tr><td>GHASH</td><td align="right">4.37us</td><td align="right">1.50us</td><td align="right">4.37us</td><td align="right">36</td></tr>
<tr><td colspan="5"> </td></tr>
<tr><td>Public Key Operation</td><td align="right">Time (per operation)</td><td colspan="3">Comment</td></tr>
<tr><td>Curve25519::eval()</td><td align="right">103ms</td><td colspan="3">Raw curve evaluation</td></tr>
<tr><td>Curve25519::dh1()</td><td align="right">103ms</td><td colspan="3">First half of Diffie-Hellman key agreement</td></tr>
<tr><td>Curve25519::dh2()</td><td align="right">104ms</td><td colspan="3">Second half of Diffie-Hellman key agreement</td></tr>
<tr><td>Ed25519::sign()</td><td align="right">195ms</td><td colspan="3">Digital signature generation</td></tr>
<tr><td>Ed25519::verify()</td><td align="right">306ms</td><td colspan="3">Digital signature verification</td></tr>
<tr><td>Ed25519::derivePublicKey()</td><td align="right">194ms</td><td colspan="3">Derive a public key from a private key</td></tr>
</table>
*/ */

7
libraries/Crypto/BigNumberUtil.h
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@ -28,9 +28,16 @@
// Define exactly one of these to 1 to set the size of the basic limb type. // Define exactly one of these to 1 to set the size of the basic limb type.
// 16-bit limbs seem to give the best performance on 8-bit AVR micros. // 16-bit limbs seem to give the best performance on 8-bit AVR micros.
#if defined(__AVR__)
#define BIGNUMBER_LIMB_8BIT 0 #define BIGNUMBER_LIMB_8BIT 0
#define BIGNUMBER_LIMB_16BIT 1 #define BIGNUMBER_LIMB_16BIT 1
#define BIGNUMBER_LIMB_32BIT 0 #define BIGNUMBER_LIMB_32BIT 0
#else
// On all other platforms, assume 32-bit is best (e.g. ARM).
#define BIGNUMBER_LIMB_8BIT 0
#define BIGNUMBER_LIMB_16BIT 0
#define BIGNUMBER_LIMB_32BIT 1
#endif
// Define the limb types to use on this platform. // Define the limb types to use on this platform.
#if BIGNUMBER_LIMB_8BIT #if BIGNUMBER_LIMB_8BIT