a24112de66
Implement mitigation for hcca attack
2024-11-12 08:44:34 -08:00
24c60e2435
Add test vector for ECDSA secp256k1
2020-12-24 17:45:25 -08:00
71563d854c
Added RNG for nRF52 series. Fixed infinite for loop because of int - wordcount_t mismatch
2020-10-27 23:51:07 +01:00
d1ab664e02
Random initial Z when calculating the public key
2020-10-12 16:49:35 -07:00
c1402e768a
Merge pull request #143 from westin123/master
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Conditionally removed vararg related macros for platforms where they …
2020-10-07 11:50:05 -07:00
66ef25a371
Update uECC.c
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Added uECC_arm_thumb2
2020-10-07 13:02:43 -05:00
1b5f5cea51
Fix for #168
2020-10-07 10:47:40 -07:00
867e40b21e
Conditionally removed vararg related macros for platforms where they are not used to prevent issues with compilers that don't support GCC features.
2018-08-23 16:06:19 -05:00
d2f1bd6766
Fix static annotation for uECC_valid_point
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Resolves #124
2017-08-16 17:34:23 -07:00
8d0af43866
Renamed variables named 'private' and 'public' to prevent compilation problems with C++
2016-07-27 16:54:07 +02:00
b6c0cdbe7d
Add functions to get the private/public key size for a curve ( #73 )
2016-03-08 21:29:40 -08:00
af1a5c75a0
Avoid warnings when compiling without uECC_VLI_NATIVE_LITTLE_ENDIAN
2016-03-08 20:30:59 +01:00
ceae2ca088
Fix curly brace placement
2016-03-08 09:49:04 +01:00
eff564675d
Fix code formatting and document the fact that input arrays must be word
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aligned
2016-03-08 09:47:02 +01:00
289a8e0340
Several fixes singled out in the pull request discussion thread.
2016-03-07 18:08:08 +01:00
778effd967
Add a new uECC_VLI_NATIVE_LITTLE_ENDIAN compile-time macro that enables
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fully native little endian platforms interfacing with little endian byte
streams to avoid using additional stack space and pre and post byte
reversals
2016-03-07 13:09:22 +01:00
01f15fb6b3
Add a new compile-time macro to use the local native format for VLI
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handling. This is useful for little-endian machines that have to
interface with protocol stacks using little-endian byte ordering.
2016-03-01 22:29:41 +01:00
35423ba878
Provide API access to the built-in RNG code.
2016-01-15 14:50:31 -05:00
451d53a62e
uECC_HashContext => const uECC_HashContext
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This is an important piece of "documentation" as it indicates to the
caller that a uECC_HashContext can be initialized and subsequently
used multiple times (for multiple signatures).
2015-12-23 15:42:14 -06:00
6b0566beb6
uECC.h uECC.c: whitespace cleanups
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Just removing trailing whitespace.
2015-12-23 10:24:53 -06:00
61bd1ada6f
Added new API functions: uECC_curve_num_bytes() and uECC_curve_num_n_bytes().
2015-11-01 01:39:57 -07:00
1affc1b75c
Add AVR asm implementations for runtime curve selection.
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Fast mult/square are not yet supported.
2015-10-12 21:29:57 -07:00
4014bbd378
Fix formatting.
2015-10-12 21:29:57 -07:00
12651728ea
Addressed review comments to PR #58 . Main change:
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Removed clamping via subtraction update in the uECC_generate_random_int function.
2015-10-12 21:29:57 -07:00
7b115fdf93
Updated and generalized random number generation function
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(uECC_generate_random_int). This function is also used internally.
In the new implementation when the random number is outside of the
requested range it is corrected by subtraction instead of requesting
new random number.
2015-10-12 21:29:57 -07:00
8b3838ea5f
Removed unused "curve" parameter from uECC_vli_nativeToBytes and
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uECC_vli_bytesToNative functions.
2015-10-12 21:29:57 -07:00
6826dd4789
Make bits2int reduce mod n ( #53 )
2015-10-12 21:29:57 -07:00
0283b542ef
Convert hash to int in sign/verify ( #53 )
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Previously, callers would need to manually convert the hash value
appropriately if it was not the same length as curve_n. Now, callers
just pass in the full hash value and the length; uECC will convert
the hash as appropriate.
2015-10-12 21:29:57 -07:00
4ae15e365b
Updated so that private keys are always the correct length.
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Specifically, the private key for secp160r1 is now required to be
21 bytes. Added some comments about buffer sizes.
2015-10-12 21:29:57 -07:00
1341d3dce5
Fix fast ARM mult/square asm for Xcode
2015-10-12 21:29:57 -07:00
f58c04fdec
Minor cleanup
2015-10-12 21:29:57 -07:00
69744ae539
Added uECC_generate_random_int(), and made uECC_vli_cmp() constant-time.
2015-10-12 21:29:56 -07:00
856a90df3b
Cache the values of curve->num_words and curve->num_n_words.
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Apparently the optimizer is not as smart as I thought.
2015-10-12 21:29:56 -07:00
e9ac0d230b
Make uECC_RNG_NUM_TRIES modifiable at compile time.
2015-10-12 21:29:56 -07:00
74f6d2d9d7
Directly expose vli functions if uECC_ENABLE_VLI_API != 0
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Added a header file for those functions as well.
2015-10-12 21:29:56 -07:00
ca9e456f42
Added new define (uECC_SUPPORT_COMPRESSED_POINT) and new API functions.
2015-10-12 21:29:56 -07:00
2cc5e9211a
Add an intermediate optimization level where only add/sub are "fast".
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Also made uECC_SQUARE_FUNC separately controllable for now.
2015-10-12 21:29:56 -07:00
5d6644e23f
Make wordcount_t signed, and remove swordcount_t.
2015-10-12 21:29:56 -07:00
c250083ccd
Use constant-time vli_isZero() and vli_equal() functions.
2015-10-12 21:29:56 -07:00
a6a4bdd5e0
Default POSIX/Windows RNG should be treated as user-set RNG.
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The default RNG functions on POSIX and windows are secure, and
should be used as if the user had set an RNG. Also, don't set an
RNG at all on other platforms.
2015-10-12 21:29:56 -07:00
4fed9753f0
Add API for internal functions.
2015-10-12 21:29:56 -07:00
dfcc9b4ec5
Generate the correct number of bits for k when num_n_words != num_words.
2015-10-12 21:29:56 -07:00
ac6de20ea5
Only declare functions if needed. ( #50 )
2015-10-12 21:29:56 -07:00
5f01beb717
Add fast ARM asm; cleaned up code. Added optimization setting. ( #50 )
2015-10-12 21:29:56 -07:00
08ae3fd516
Add small ARM asm. ( #50 )
2015-10-12 21:28:44 -07:00
876e32ccce
Add curve-specific mmod functions. ( #50 )
2015-10-12 21:28:44 -07:00
25941ccc4d
Initial, unreasonably slow implementation of multiple curve support. ( #50 )
2015-10-12 21:28:44 -07:00
3345d505ad
Removes unused variables.
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Produced compiler warning with unused variables.
2015-09-01 14:42:55 -06:00
e3caebc792
Whitespace cleanup.
2015-09-01 14:42:18 -06:00
85d858cb09
Added compile time checks to skip vli_square() and muladd() functions when they are not used
2015-07-08 20:14:05 -07:00
Ken MacKay