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85 lines
1.5 KiB
C
85 lines
1.5 KiB
C
#include "includes.h"
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#include "dbutil.h"
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#include "crypto_desc.h"
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#include "ltc_prng.h"
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#include "ecc.h"
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#include "dbrandom.h"
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#if DROPBEAR_LTC_PRNG
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int dropbear_ltc_prng = -1;
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#endif
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/* Wrapper for libtommath */
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static mp_err dropbear_rand_source(void* out, size_t size) {
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genrandom((unsigned char*)out, (unsigned int)size);
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return MP_OKAY;
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}
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/* Register the compiled in ciphers.
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* This should be run before using any of the ciphers/hashes */
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void crypto_init() {
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const struct ltc_cipher_descriptor *regciphers[] = {
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#if DROPBEAR_AES
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&aes_desc,
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#endif
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#if DROPBEAR_BLOWFISH
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&blowfish_desc,
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#endif
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#if DROPBEAR_TWOFISH
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&twofish_desc,
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#endif
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#if DROPBEAR_3DES
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&des3_desc,
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#endif
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NULL
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};
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const struct ltc_hash_descriptor *reghashes[] = {
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/* we need sha1 for hostkey stuff regardless */
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&sha1_desc,
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#if DROPBEAR_MD5_HMAC
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&md5_desc,
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#endif
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#if DROPBEAR_SHA256
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&sha256_desc,
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#endif
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#if DROPBEAR_SHA384
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&sha384_desc,
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#endif
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#if DROPBEAR_SHA512
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&sha512_desc,
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#endif
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NULL
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};
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int i;
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for (i = 0; regciphers[i] != NULL; i++) {
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if (register_cipher(regciphers[i]) == -1) {
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dropbear_exit("Error registering crypto");
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}
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}
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for (i = 0; reghashes[i] != NULL; i++) {
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if (register_hash(reghashes[i]) == -1) {
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dropbear_exit("Error registering crypto");
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}
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}
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#if DROPBEAR_LTC_PRNG
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dropbear_ltc_prng = register_prng(&dropbear_prng_desc);
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if (dropbear_ltc_prng == -1) {
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dropbear_exit("Error registering crypto");
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}
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#endif
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mp_rand_source(dropbear_rand_source);
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#if DROPBEAR_ECC
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ltc_mp = ltm_desc;
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dropbear_ecc_fill_dp();
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#endif
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}
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