Mercurial > dropbear
annotate crypto_desc.c @ 1663:c795520269f9
Fallback for key gen without hard link support (#89)
Add a non-atomic fallback for key generation on platforms where link()
is not permitted (such as most stock Android installs) or on filesystems
without hard link support (such as FAT).
| author | Matt Robinson <git@nerdoftheherd.com> |
|---|---|
| date | Sat, 14 Mar 2020 14:37:35 +0000 |
| parents | 750ec4ec4cbe |
| children | 34d9d3c022ce |
| rev | line source |
|---|---|
| 766 | 1 #include "includes.h" |
| 2 #include "dbutil.h" | |
| 3 #include "crypto_desc.h" | |
| 4 #include "ltc_prng.h" | |
|
767
e465ed10c51d
Be safer with how we handle ltc_ecc_sets[] (particularly with
Matt Johnston <matt@ucc.asn.au>
parents:
766
diff
changeset
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5 #include "ecc.h" |
| 766 | 6 |
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parents:
767
diff
changeset
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7 #if DROPBEAR_LTC_PRNG |
| 766 | 8 int dropbear_ltc_prng = -1; |
| 9 #endif | |
| 10 | |
| 11 | |
| 12 /* Register the compiled in ciphers. | |
| 13 * This should be run before using any of the ciphers/hashes */ | |
| 14 void crypto_init() { | |
| 15 | |
| 16 const struct ltc_cipher_descriptor *regciphers[] = { | |
|
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parents:
767
diff
changeset
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17 #if DROPBEAR_AES |
| 766 | 18 &aes_desc, |
| 19 #endif | |
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parents:
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diff
changeset
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20 #if DROPBEAR_BLOWFISH |
| 766 | 21 &blowfish_desc, |
| 22 #endif | |
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parents:
767
diff
changeset
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23 #if DROPBEAR_TWOFISH |
| 766 | 24 &twofish_desc, |
| 25 #endif | |
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Matt Johnston <matt@ucc.asn.au>
parents:
767
diff
changeset
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26 #if DROPBEAR_3DES |
| 766 | 27 &des3_desc, |
| 28 #endif | |
| 29 NULL | |
| 30 }; | |
| 31 | |
| 32 const struct ltc_hash_descriptor *reghashes[] = { | |
| 33 /* we need sha1 for hostkey stuff regardless */ | |
| 34 &sha1_desc, | |
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Matt Johnston <matt@ucc.asn.au>
parents:
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diff
changeset
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35 #if DROPBEAR_MD5_HMAC |
| 766 | 36 &md5_desc, |
| 37 #endif | |
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parents:
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diff
changeset
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38 #if DROPBEAR_SHA256 |
| 766 | 39 &sha256_desc, |
| 40 #endif | |
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Matt Johnston <matt@ucc.asn.au>
parents:
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diff
changeset
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41 #if DROPBEAR_SHA384 |
| 766 | 42 &sha384_desc, |
| 43 #endif | |
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750ec4ec4cbe
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Matt Johnston <matt@ucc.asn.au>
parents:
767
diff
changeset
|
44 #if DROPBEAR_SHA512 |
| 766 | 45 &sha512_desc, |
| 46 #endif | |
| 47 NULL | |
| 48 }; | |
| 49 int i; | |
| 50 | |
| 51 for (i = 0; regciphers[i] != NULL; i++) { | |
| 52 if (register_cipher(regciphers[i]) == -1) { | |
| 53 dropbear_exit("Error registering crypto"); | |
| 54 } | |
| 55 } | |
| 56 | |
| 57 for (i = 0; reghashes[i] != NULL; i++) { | |
| 58 if (register_hash(reghashes[i]) == -1) { | |
| 59 dropbear_exit("Error registering crypto"); | |
| 60 } | |
| 61 } | |
| 62 | |
|
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750ec4ec4cbe
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Matt Johnston <matt@ucc.asn.au>
parents:
767
diff
changeset
|
63 #if DROPBEAR_LTC_PRNG |
| 766 | 64 dropbear_ltc_prng = register_prng(&dropbear_prng_desc); |
| 65 if (dropbear_ltc_prng == -1) { | |
| 66 dropbear_exit("Error registering crypto"); | |
| 67 } | |
| 68 #endif | |
| 69 | |
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750ec4ec4cbe
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Matt Johnston <matt@ucc.asn.au>
parents:
767
diff
changeset
|
70 #if DROPBEAR_ECC |
| 766 | 71 ltc_mp = ltm_desc; |
|
767
e465ed10c51d
Be safer with how we handle ltc_ecc_sets[] (particularly with
Matt Johnston <matt@ucc.asn.au>
parents:
766
diff
changeset
|
72 dropbear_ecc_fill_dp(); |
| 766 | 73 #endif |
| 74 } | |
| 75 |