Mercurial > dropbear
annotate libtommath/bn_mp_get_long_long.c @ 1678:4b4cfc92c5b7
Make server send SSH_MSG_EXT_INFO
Ensure that only valid hostkey algorithms are sent in the first kex guess
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Thu, 21 May 2020 23:00:22 +0800 |
| parents | f52919ffd3b1 |
| children |
| rev | line source |
|---|---|
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
1 #include "tommath_private.h" |
| 1436 | 2 #ifdef BN_MP_GET_LONG_LONG_C |
| 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis | |
| 4 * | |
| 5 * LibTomMath is a library that provides multiple-precision | |
| 6 * integer arithmetic as well as number theoretic functionality. | |
| 7 * | |
| 8 * The library was designed directly after the MPI library by | |
| 9 * Michael Fromberger but has been written from scratch with | |
| 10 * additional optimizations in place. | |
| 11 * | |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
12 * SPDX-License-Identifier: Unlicense |
| 1436 | 13 */ |
| 14 | |
| 15 /* get the lower unsigned long long of an mp_int, platform dependent */ | |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
16 unsigned long long mp_get_long_long(const mp_int *a) |
| 1436 | 17 { |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
18 int i; |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
19 unsigned long long res; |
| 1436 | 20 |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
21 if (a->used == 0) { |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
22 return 0; |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
23 } |
| 1436 | 24 |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
25 /* get number of digits of the lsb we have to read */ |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
26 i = MIN(a->used, ((((int)sizeof(unsigned long long) * CHAR_BIT) + DIGIT_BIT - 1) / DIGIT_BIT)) - 1; |
| 1436 | 27 |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
28 /* get most significant digit of result */ |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
29 res = DIGIT(a, i); |
| 1436 | 30 |
| 31 #if DIGIT_BIT < 64 | |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
32 while (--i >= 0) { |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
33 res = (res << DIGIT_BIT) | DIGIT(a, i); |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
34 } |
| 1436 | 35 #endif |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
36 return res; |
| 1436 | 37 } |
| 38 #endif | |
|
1655
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
39 |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
40 /* ref: HEAD -> master, tag: v1.1.0 */ |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
41 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ |
|
f52919ffd3b1
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents:
1436
diff
changeset
|
42 /* commit time: 2019-01-28 20:32:32 +0100 */ |