Unsignedio
/
micropython-curve25519
mirror of https://github.com/markqvist/micropython-curve25519.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

added some more optimization

master
pmvr 2020-06-07 11:09:02 +02:00
parent f315aeb232
commit fed427c269
2 changed files with 7 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
README.md
View File

@ -26,13 +26,13 @@ Python script `x25519.py`
Test vectors from https://tools.ietf.org/html/rfc8031#appendix-A
Test 1: X25519: q = d*u
Computatation time: 40 ms
Computatation time: 39 ms
q [hex/dec] = 66c7fb0d9f7090f777fa8493081ce8a4f174dbbbf9a36f16ba571206d4ddd548 46489245826987382655505058740283756869827209462947799117248009944518788765000
Test 1 passed.
Test 2: X25519 + y-coordinate recovery + transform to Edwards-curve
(x, y) = Edward(q, r), (q, r) = d*(u, v)
Computatation time: 45 ms
Computatation time: 44 ms
x [hex/dec] = 1ce7e6e3a747a25352df2d3155f06427ba389769e37755731dead2b54c5cef03 13074494971479542188989287385397236998770807488645203601973104535274459557635
y [hex/dec] = 4dd1c7c2001c147333ceedf77ebd48b1100e2a95f88cf1f40d1b74ec7279e657 35198739055214410372845858661063095427357109357427482712729161712065293444695
Test 2 passed.
@ -41,23 +41,23 @@ Python script `x25519.py`
Python script `ed25519.py`
Test 1: Length of message: 0 bytes
Computatation time: 91 ms
Computatation time: 89 ms
Test 1 passed.
Test 2: Length of message: 1 byte
Computatation time: 91 ms
Computatation time: 90 ms
Test 2 passed.
Test 3: Length of message: 2 bytes
Computatation time: 91 ms
Computatation time: 90 ms
Test 3 passed.
Test 4: Length of message: 1023 bytes
Computatation time: 100 ms
Computatation time: 98 ms
Test 4 passed.
Test 5: Length of message: 64 bytes
Computatation time: 92 ms
Computatation time: 90 ms
Test 5 passed.
## Warning

4
mpy-modules/curve25519/arithmetic.c
View File

@ -149,13 +149,9 @@ void pu(uint32_t *t, uint32_t u) {
"STMIA %0!, {r4}\n"
"SBCS r4, r3, r3\n"
"STMIA %0!, {r4}\n"
"SBCS r4, r3, r3\n"
"STMIA %0!, {r4}\n"
"SBCS r4, r3, r3\n"
"STMIA %0!, {r4}\n"
"SBCS r4, r3, r3\n"
"STMIA %0!, {r4}\n"
"SBCS r4, r3, r3\n"
"STMIA %0!, {r4}\n"
"SBCS r4, r2, r3\n"
"STMIA %0!, {r4}\n"