Mercurial > dropbear
annotate libtommath/bn_mp_to_sbin.c @ 1855:35d504d59c05
Implement server-side support for sk-ecdsa U2F-backed keys (#142)
* Implement server-side support for sk-ecdsa U2F-backed keys
* Fix out-of-bounds read on normal ecdsa-sha2-[identifier] keys
* Fix one more potential out-of-bounds read
* Check if nistp256 curve is used in sk-ecdsa-sha2- key
It's the only allowed curve per PROTOCOL.u2f specification
* Implement server-side support for sk-ed25519 FIDO2-backed keys
* Keys with type sk-* make no sense as host keys, so they should be
disabled
* fix typo
* Make sk-ecdsa call buf_ecdsa_verify
This reduces code duplication, the SK code just handles the
different message format.
* Reduce sk specific code
The application id can be stored in signkey, then we don't need
to call sk-specific functions from svr-authpubkey
* Remove debugging output, which causes compilation errors with DEBUG_TRACE disabled
* Proper cleanup of sk_app
Co-authored-by: Matt Johnston <[email protected]>
author | egor-duda <egor-duda@users.noreply.github.com> |
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date | Sat, 22 Jan 2022 16:53:04 +0300 |
parents | 1051e4eea25a |
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rev | line source |
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Update LibTomMath to 1.2.0 (#84)
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1 #include "tommath_private.h" |
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Update LibTomMath to 1.2.0 (#84)
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2 #ifdef BN_MP_TO_SBIN_C |
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis */ |
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4 /* SPDX-License-Identifier: Unlicense */ |
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5 |
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6 /* store in signed [big endian] format */ |
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7 mp_err mp_to_sbin(const mp_int *a, unsigned char *buf, size_t maxlen, size_t *written) |
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8 { |
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9 mp_err err; |
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10 if (maxlen == 0u) { |
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11 return MP_BUF; |
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12 } |
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13 if ((err = mp_to_ubin(a, buf + 1, maxlen - 1u, written)) != MP_OKAY) { |
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14 return err; |
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15 } |
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16 if (written != NULL) { |
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17 (*written)++; |
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18 } |
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19 buf[0] = (a->sign == MP_ZPOS) ? (unsigned char)0 : (unsigned char)1; |
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20 return MP_OKAY; |
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21 } |
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22 #endif |