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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 * Tom St Denis, [email protected], http://libtomcrypt.com |
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10 */ |
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11 #include "tomcrypt.h" |
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12 |
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13 /** |
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14 @file der_encode_boolean.c |
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15 ASN.1 DER, encode a BOOLEAN, Tom St Denis |
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16 */ |
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17 |
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18 |
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19 #ifdef LTC_DER |
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20 |
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21 /** |
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22 Store a BOOLEAN |
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23 @param in The boolean to encode |
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24 @param out [out] The destination for the DER encoded BOOLEAN |
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25 @param outlen [in/out] The max size and resulting size of the DER BOOLEAN |
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26 @return CRYPT_OK if successful |
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27 */ |
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28 int der_encode_boolean(int in, |
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29 unsigned char *out, unsigned long *outlen) |
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30 { |
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31 LTC_ARGCHK(outlen != NULL); |
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32 LTC_ARGCHK(out != NULL); |
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33 |
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34 if (*outlen < 3) { |
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35 *outlen = 3; |
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36 return CRYPT_BUFFER_OVERFLOW; |
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37 } |
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38 |
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39 *outlen = 3; |
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40 out[0] = 0x01; |
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41 out[1] = 0x01; |
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42 out[2] = in ? 0xFF : 0x00; |
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43 |
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44 return CRYPT_OK; |
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45 } |
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46 |
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47 #endif |
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48 |
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49 /* $Source: /cvs/libtom/libtomcrypt/src/pk/asn1/der/boolean/der_encode_boolean.c,v $ */ |
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50 /* $Revision: 1.3 $ */ |
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51 /* $Date: 2006/06/16 21:53:41 $ */ |
