Mercurial > dropbear
view libtomcrypt/src/math/multi.c @ 1638:315fcba6960e
dropbearconvert: keyimport.c: fix BER encoding of secp521r1 keys (#69)
keysizes >= 128 octets will be encoded with a 3 byte header
which must be accounted by the optional-header
Reproduce:
master:~/build/dropbear$ ./dropbearkey -t ecdsa -s 521 -f K
Generating 521 bit ecdsa key, this may take a while...
master:~/build/dropbear$ ./dropbearconvert d o K L
Key is a ecdsa-sha2-nistp521 key
Wrote key to 'L'
master:~/build/dropbear$ openssl ec < L
read EC key
unable to load Key
139769806448384:error:0D07209B:asn1 encoding routines:ASN1_get_object:too long:crypto/asn1/asn1_lib.c:91:
author | Christian Hohnstädt <christian@hohnstaedt.de> |
---|---|
date | Wed, 20 Mar 2019 16:42:47 +0100 |
parents | 6dba84798cd5 |
children | e9dba7abd939 |
line wrap: on
line source
/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. */ #include "tomcrypt.h" #ifdef LTC_MPI #include <stdarg.h> int ltc_init_multi(void **a, ...) { void **cur = a; int np = 0; va_list args; va_start(args, a); while (cur != NULL) { if (mp_init(cur) != CRYPT_OK) { /* failed */ va_list clean_list; va_start(clean_list, a); cur = a; while (np--) { mp_clear(*cur); cur = va_arg(clean_list, void**); } va_end(clean_list); va_end(args); return CRYPT_MEM; } ++np; cur = va_arg(args, void**); } va_end(args); return CRYPT_OK; } void ltc_deinit_multi(void *a, ...) { void *cur = a; va_list args; va_start(args, a); while (cur != NULL) { mp_clear(cur); cur = va_arg(args, void *); } va_end(args); } void ltc_cleanup_multi(void **a, ...) { void **cur = a; va_list args; va_start(args, a); while (cur != NULL) { if (*cur != NULL) { mp_clear(*cur); *cur = NULL; } cur = va_arg(args, void**); } va_end(args); return; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */