view libtomcrypt/src/misc/pk_get_oid.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
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/* 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_DER
static const oid_st rsa_oid = {
   { 1, 2, 840, 113549, 1, 1, 1  },
   7,
};

static const oid_st dsa_oid = {
   { 1, 2, 840, 10040, 4, 1  },
   6,
};

/*
   Returns the OID of the public key algorithm.
   @return CRYPT_OK if valid
*/
int pk_get_oid(int pk, oid_st *st)
{
   switch (pk) {
      case PKA_RSA:
         XMEMCPY(st, &rsa_oid, sizeof(*st));
         break;
      case PKA_DSA:
         XMEMCPY(st, &dsa_oid, sizeof(*st));
         break;
      default:
         return CRYPT_INVALID_ARG;
   }
   return CRYPT_OK;
}
#endif

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