37 lines
921 B
C
37 lines
921 B
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
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*/
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#include "mycrypt.h"
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int register_cipher(const struct _cipher_descriptor *cipher)
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{
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int x;
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_ARGCHK(cipher != NULL);
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/* is it already registered? */
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for (x = 0; x < TAB_SIZE; x++) {
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if (cipher_descriptor[x].name != NULL && cipher_descriptor[x].ID == cipher->ID) {
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return x;
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}
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}
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/* find a blank spot */
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for (x = 0; x < TAB_SIZE; x++) {
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if (cipher_descriptor[x].name == NULL) {
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XMEMCPY(&cipher_descriptor[x], cipher, sizeof(struct _cipher_descriptor));
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return x;
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}
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}
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/* no spot */
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return -1;
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}
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