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annotate libtomcrypt/src/pk/rsa/rsa_get_size.c @ 1638:315fcba6960e

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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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9 #include "tomcrypt.h"
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10
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11 /**
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12 @file rsa_get_size.c
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13 Retrieve the size of an RSA key, Steffen Jaeckel.
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14 */
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15
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16 #ifdef LTC_MRSA
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17
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18 /**
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19 Retrieve the size in bytes of an RSA key.
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20 @param key The RSA key
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21 @return The size in bytes of the RSA key or INT_MAX on error.
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22 */
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23 int rsa_get_size(rsa_key *key)
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24 {
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25 int ret = INT_MAX;
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26 LTC_ARGCHK(key != NULL);
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27
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28 if (key)
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29 {
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30 ret = mp_unsigned_bin_size(key->N);
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31 } /* if */
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32
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33 return ret;
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34 }
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35
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36 #endif
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37
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38 /* ref: $Format:%D$ */
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39 /* git commit: $Format:%H$ */
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40 /* commit time: $Format:%ai$ */