Mercurial > dropbear
annotate crypto_desc.c @ 1832:a974a80f5f44
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| author | Matt Johnston <matt@codeconstruct.com.au> |
|---|---|
| date | Tue, 12 Oct 2021 21:29:42 +0800 |
| parents | 34d9d3c022ce |
| children | 13cb8cc1b0e4 |
| rev | line source |
|---|---|
| 766 | 1 #include "includes.h" |
| 2 #include "dbutil.h" | |
| 3 #include "crypto_desc.h" | |
| 4 #include "ltc_prng.h" | |
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5 #include "ecc.h" |
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6 #include "dbrandom.h" |
| 766 | 7 |
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8 #if DROPBEAR_LTC_PRNG |
| 766 | 9 int dropbear_ltc_prng = -1; |
| 10 #endif | |
| 11 | |
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12 /* Wrapper for libtommath */ |
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13 static mp_err dropbear_rand_source(void* out, size_t size) { |
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14 genrandom((unsigned char*)out, (unsigned int)size); |
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15 return MP_OKAY; |
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16 } |
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17 |
| 766 | 18 |
| 19 /* Register the compiled in ciphers. | |
| 20 * This should be run before using any of the ciphers/hashes */ | |
| 21 void crypto_init() { | |
| 22 | |
| 23 const struct ltc_cipher_descriptor *regciphers[] = { | |
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24 #if DROPBEAR_AES |
| 766 | 25 &aes_desc, |
| 26 #endif | |
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27 #if DROPBEAR_BLOWFISH |
| 766 | 28 &blowfish_desc, |
| 29 #endif | |
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30 #if DROPBEAR_TWOFISH |
| 766 | 31 &twofish_desc, |
| 32 #endif | |
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33 #if DROPBEAR_3DES |
| 766 | 34 &des3_desc, |
| 35 #endif | |
| 36 NULL | |
| 37 }; | |
| 38 | |
| 39 const struct ltc_hash_descriptor *reghashes[] = { | |
| 40 /* we need sha1 for hostkey stuff regardless */ | |
| 41 &sha1_desc, | |
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42 #if DROPBEAR_MD5_HMAC |
| 766 | 43 &md5_desc, |
| 44 #endif | |
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45 #if DROPBEAR_SHA256 |
| 766 | 46 &sha256_desc, |
| 47 #endif | |
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48 #if DROPBEAR_SHA384 |
| 766 | 49 &sha384_desc, |
| 50 #endif | |
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51 #if DROPBEAR_SHA512 |
| 766 | 52 &sha512_desc, |
| 53 #endif | |
| 54 NULL | |
| 55 }; | |
| 56 int i; | |
| 57 | |
| 58 for (i = 0; regciphers[i] != NULL; i++) { | |
| 59 if (register_cipher(regciphers[i]) == -1) { | |
| 60 dropbear_exit("Error registering crypto"); | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 for (i = 0; reghashes[i] != NULL; i++) { | |
| 65 if (register_hash(reghashes[i]) == -1) { | |
| 66 dropbear_exit("Error registering crypto"); | |
| 67 } | |
| 68 } | |
| 69 | |
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70 #if DROPBEAR_LTC_PRNG |
| 766 | 71 dropbear_ltc_prng = register_prng(&dropbear_prng_desc); |
| 72 if (dropbear_ltc_prng == -1) { | |
| 73 dropbear_exit("Error registering crypto"); | |
| 74 } | |
| 75 #endif | |
| 76 | |
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parents:
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77 mp_rand_source(dropbear_rand_source); |
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parents:
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78 |
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79 #if DROPBEAR_ECC |
| 766 | 80 ltc_mp = ltm_desc; |
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parents:
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diff
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81 dropbear_ecc_fill_dp(); |
| 766 | 82 #endif |
| 83 } | |
| 84 |