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annotate libtomcrypt/src/modes/ecb/ecb_start.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 ecb_start.c
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13 ECB implementation, start chain, Tom St Denis
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14 */
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17 #ifdef LTC_ECB_MODE
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19 /**
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20 Initialize a ECB context
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21 @param cipher The index of the cipher desired
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22 @param key The secret key
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23 @param keylen The length of the secret key (octets)
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24 @param num_rounds Number of rounds in the cipher desired (0 for default)
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25 @param ecb The ECB state to initialize
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26 @return CRYPT_OK if successful
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27 */
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28 int ecb_start(int cipher, const unsigned char *key, int keylen, int num_rounds, symmetric_ECB *ecb)
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29 {
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30 int err;
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31 LTC_ARGCHK(key != NULL);
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32 LTC_ARGCHK(ecb != NULL);
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34 if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
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35 return err;
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36 }
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37 ecb->cipher = cipher;
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38 ecb->blocklen = cipher_descriptor[cipher].block_length;
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39 return cipher_descriptor[cipher].setup(key, keylen, num_rounds, &ecb->key);
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40 }
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42 #endif
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43
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44 /* ref: $Format:%D$ */
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45 /* git commit: $Format:%H$ */
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46 /* commit time: $Format:%ai$ */