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annotate libtomcrypt/src/pk/dsa/dsa_make_key.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
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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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11 /**
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12 @file dsa_make_key.c
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13 DSA implementation, generate a DSA key
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14 */
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16 #ifdef LTC_MDSA
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18 /**
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19 Old-style creation of a DSA key
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20 @param prng An active PRNG state
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21 @param wprng The index of the PRNG desired
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22 @param group_size Size of the multiplicative group (octets)
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23 @param modulus_size Size of the modulus (octets)
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24 @param key [out] Where to store the created key
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25 @return CRYPT_OK if successful.
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26 */
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27 int dsa_make_key(prng_state *prng, int wprng, int group_size, int modulus_size, dsa_key *key)
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28 {
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29 int err;
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31 if ((err = dsa_generate_pqg(prng, wprng, group_size, modulus_size, key)) != CRYPT_OK) { return err; }
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32 if ((err = dsa_generate_key(prng, wprng, key)) != CRYPT_OK) { return err; }
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34 return CRYPT_OK;
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35 }
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37 #endif
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38
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39 /* ref: $Format:%D$ */
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40 /* git commit: $Format:%H$ */
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41 /* commit time: $Format:%ai$ */