Mercurial > dropbear
annotate libtomcrypt/src/pk/rsa/rsa_set.c @ 1688:e01f9ec6d177
Fix untested rsa-sha256 change to fuzzer-verify
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 26 May 2020 23:13:23 +0800 |
parents | 6dba84798cd5 |
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rev | line source |
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1471
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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 #include "tomcrypt.h" |
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10 |
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11 |
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12 #ifdef LTC_MRSA |
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13 |
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14 /** |
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15 Import RSA key from raw numbers |
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16 |
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17 @param N RSA's N |
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18 @param Nlen RSA's N's length |
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19 @param e RSA's e |
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20 @param elen RSA's e's length |
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21 @param d RSA's d (only private key, NULL for public key) |
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22 @param dlen RSA's d's length |
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23 @param key [out] the destination for the imported key |
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24 @return CRYPT_OK if successful |
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25 */ |
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26 int rsa_set_key(const unsigned char *N, unsigned long Nlen, |
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27 const unsigned char *e, unsigned long elen, |
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28 const unsigned char *d, unsigned long dlen, |
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29 rsa_key *key) |
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30 { |
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31 int err; |
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32 |
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33 LTC_ARGCHK(key != NULL); |
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34 LTC_ARGCHK(N != NULL); |
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35 LTC_ARGCHK(e != NULL); |
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36 LTC_ARGCHK(ltc_mp.name != NULL); |
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37 |
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38 err = mp_init_multi(&key->e, &key->d, &key->N, &key->dQ, &key->dP, &key->qP, &key->p, &key->q, NULL); |
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39 if (err != CRYPT_OK) return err; |
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40 |
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41 if ((err = mp_read_unsigned_bin(key->N , (unsigned char *)N , Nlen)) != CRYPT_OK) { goto LBL_ERR; } |
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42 if ((err = mp_read_unsigned_bin(key->e , (unsigned char *)e , elen)) != CRYPT_OK) { goto LBL_ERR; } |
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43 if (d && dlen) { |
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44 if ((err = mp_read_unsigned_bin(key->d , (unsigned char *)d , dlen)) != CRYPT_OK) { goto LBL_ERR; } |
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45 key->type = PK_PRIVATE; |
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46 } |
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47 else { |
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48 key->type = PK_PUBLIC; |
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49 } |
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50 return CRYPT_OK; |
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51 |
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52 LBL_ERR: |
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53 rsa_free(key); |
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54 return err; |
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55 } |
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56 |
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57 /** |
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58 Import factors of an RSA key from raw numbers |
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59 |
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60 Only for private keys. |
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61 |
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62 @param p RSA's p |
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63 @param plen RSA's p's length |
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64 @param q RSA's q |
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65 @param qlen RSA's q's length |
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66 @param key [out] the destination for the imported key |
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67 @return CRYPT_OK if successful |
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68 */ |
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69 int rsa_set_factors(const unsigned char *p, unsigned long plen, |
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70 const unsigned char *q, unsigned long qlen, |
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71 rsa_key *key) |
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72 { |
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73 int err; |
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74 |
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75 LTC_ARGCHK(key != NULL); |
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76 LTC_ARGCHK(p != NULL); |
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77 LTC_ARGCHK(q != NULL); |
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78 LTC_ARGCHK(ltc_mp.name != NULL); |
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79 |
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80 if (key->type != PK_PRIVATE) return CRYPT_PK_TYPE_MISMATCH; |
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81 |
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82 if ((err = mp_read_unsigned_bin(key->p , (unsigned char *)p , plen)) != CRYPT_OK) { goto LBL_ERR; } |
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83 if ((err = mp_read_unsigned_bin(key->q , (unsigned char *)q , qlen)) != CRYPT_OK) { goto LBL_ERR; } |
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84 return CRYPT_OK; |
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85 |
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86 LBL_ERR: |
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87 rsa_free(key); |
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88 return err; |
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89 } |
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90 |
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91 /** |
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92 Import CRT parameters of an RSA key from raw numbers |
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93 |
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94 Only for private keys. |
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95 |
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96 @param dP RSA's dP |
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97 @param dPlen RSA's dP's length |
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98 @param dQ RSA's dQ |
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99 @param dQlen RSA's dQ's length |
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100 @param qP RSA's qP |
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101 @param qPlen RSA's qP's length |
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102 @param key [out] the destination for the imported key |
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103 @return CRYPT_OK if successful |
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104 */ |
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105 int rsa_set_crt_params(const unsigned char *dP, unsigned long dPlen, |
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106 const unsigned char *dQ, unsigned long dQlen, |
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107 const unsigned char *qP, unsigned long qPlen, |
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108 rsa_key *key) |
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109 { |
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110 int err; |
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111 |
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112 LTC_ARGCHK(key != NULL); |
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113 LTC_ARGCHK(dP != NULL); |
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114 LTC_ARGCHK(dQ != NULL); |
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115 LTC_ARGCHK(qP != NULL); |
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116 LTC_ARGCHK(ltc_mp.name != NULL); |
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117 |
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118 if (key->type != PK_PRIVATE) return CRYPT_PK_TYPE_MISMATCH; |
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119 |
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120 if ((err = mp_read_unsigned_bin(key->dP, (unsigned char *)dP, dPlen)) != CRYPT_OK) { goto LBL_ERR; } |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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121 if ((err = mp_read_unsigned_bin(key->dQ, (unsigned char *)dQ, dQlen)) != CRYPT_OK) { goto LBL_ERR; } |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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122 if ((err = mp_read_unsigned_bin(key->qP, (unsigned char *)qP, qPlen)) != CRYPT_OK) { goto LBL_ERR; } |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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123 return CRYPT_OK; |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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124 |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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125 LBL_ERR: |
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126 rsa_free(key); |
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127 return err; |
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128 } |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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129 |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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130 #endif /* LTC_MRSA */ |
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Update to libtomcrypt 1.18.1, merged with Dropbear changes
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131 |
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132 /* ref: $Format:%D$ */ |
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133 /* git commit: $Format:%H$ */ |
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134 /* commit time: $Format:%ai$ */ |