Mercurial > dropbear

annotate src/headers/tomcrypt_pk.h @ 192:9cc34777b479 libtomcrypt

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propagate from branch 'au.asn.ucc.matt.ltc-orig' (head 9ba8f01f44320e9cb9f19881105ae84f84a43ea9) to branch 'au.asn.ucc.matt.dropbear.ltc' (head dbf51c569bc34956ad948e4cc87a0eeb2170b768)
author Matt Johnston <matt@ucc.asn.au>
date Sun, 08 May 2005 06:36:47 +0000
parents 1c15b283127b
children 39d5d58461d6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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191
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc
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1 /* ---- NUMBER THEORY ---- */
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2 #ifdef MPI
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3
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4 #include "ltc_tommath.h"
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5
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6 /* in/out macros */
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7 #define OUTPUT_BIGNUM(num, out, y, z) \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc
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8 { \
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9 if ((y + 4) > *outlen) { return CRYPT_BUFFER_OVERFLOW; } \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc
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10 z = (unsigned long)mp_unsigned_bin_size(num); \
1c15b283127b Import of libtomcrypt 1.02 with manual path rename rearrangement etc
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11 STORE32L(z, out+y); \
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12 y += 4; \
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13 if ((y + z) > *outlen) { return CRYPT_BUFFER_OVERFLOW; } \
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14 if ((err = mp_to_unsigned_bin(num, out+y)) != MP_OKAY) { return mpi_to_ltc_error(err); } \
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15 y += z; \
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16 }
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17
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18
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19 #define INPUT_BIGNUM(num, in, x, y, inlen) \
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20 { \
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21 /* load value */ \
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22 if ((y + 4) > inlen) { \
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23 err = CRYPT_INVALID_PACKET; \
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24 goto error; \
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25 } \
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26 LOAD32L(x, in+y); \
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27 y += 4; \
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28 \
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29 /* sanity check... */ \
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30 if ((x+y) > inlen) { \
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31 err = CRYPT_INVALID_PACKET; \
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32 goto error; \
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33 } \
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34 \
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35 /* load it */ \
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36 if ((err = mp_read_unsigned_bin(num, (unsigned char *)in+y, (int)x)) != MP_OKAY) {\
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37 err = mpi_to_ltc_error(err); \
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38 goto error; \
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39 } \
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40 y += x; \
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41 if ((err = mp_shrink(num)) != MP_OKAY) { \
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42 err = mpi_to_ltc_error(err); \
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43 goto error; \
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44 } \
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45 }
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46
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47 int is_prime(mp_int *, int *);
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48 int rand_prime(mp_int *N, long len, prng_state *prng, int wprng);
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49
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50 #else
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51 #ifdef MRSA
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52 #error RSA requires the big int library
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53 #endif
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54 #ifdef MECC
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55 #error ECC requires the big int library
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56 #endif
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57 #ifdef MDH
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58 #error DH requires the big int library
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59 #endif
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60 #ifdef MDSA
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61 #error DSA requires the big int library
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62 #endif
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63 #endif /* MPI */
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64
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65
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66 /* ---- PUBLIC KEY CRYPTO ---- */
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67
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68 #define PK_PRIVATE 0 /* PK private keys */
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69 #define PK_PUBLIC 1 /* PK public keys */
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70
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71 /* ---- PACKET ---- */
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72 #ifdef PACKET
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73
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74 void packet_store_header(unsigned char *dst, int section, int subsection);
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75 int packet_valid_header(unsigned char *src, int section, int subsection);
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76
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77 #endif
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78
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79
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80 /* ---- RSA ---- */
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81 #ifdef MRSA
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82
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83 /* Min and Max RSA key sizes (in bits) */
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84 #define MIN_RSA_SIZE 1024
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85 #define MAX_RSA_SIZE 4096
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86
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87 /* Stack required for temps (plus padding) */
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88 // #define RSA_STACK (8 + (MAX_RSA_SIZE/8))
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89
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90 typedef struct Rsa_key {
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91 int type;
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92 mp_int e, d, N, p, q, qP, dP, dQ;
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93 } rsa_key;
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94
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95 int rsa_make_key(prng_state *prng, int wprng, int size, long e, rsa_key *key);
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96
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97 int rsa_exptmod(const unsigned char *in, unsigned long inlen,
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98 unsigned char *out, unsigned long *outlen, int which,
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99 rsa_key *key);
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100
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101 void rsa_free(rsa_key *key);
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102
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103 /* These use PKCS #1 v2.0 padding */
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104 int rsa_encrypt_key(const unsigned char *in, unsigned long inlen,
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105 unsigned char *out, unsigned long *outlen,
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106 const unsigned char *lparam, unsigned long lparamlen,
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107 prng_state *prng, int prng_idx, int hash_idx, rsa_key *key);
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108
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109 int rsa_decrypt_key(const unsigned char *in, unsigned long inlen,
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110 unsigned char *out, unsigned long *outlen,
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111 const unsigned char *lparam, unsigned long lparamlen,
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112 int hash_idx, int *stat,
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113 rsa_key *key);
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114
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115 int rsa_sign_hash(const unsigned char *in, unsigned long inlen,
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116 unsigned char *out, unsigned long *outlen,
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117 prng_state *prng, int prng_idx,
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118 int hash_idx, unsigned long saltlen,
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119 rsa_key *key);
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120
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121 int rsa_verify_hash(const unsigned char *sig, unsigned long siglen,
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122 const unsigned char *hash, unsigned long hashlen,
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123 int hash_idx, unsigned long saltlen,
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124 int *stat, rsa_key *key);
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125
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126 /* these use PKCS #1 v1.5 padding */
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127 int rsa_v15_encrypt_key(const unsigned char *in, unsigned long inlen,
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128 unsigned char *out, unsigned long *outlen,
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129 prng_state *prng, int prng_idx,
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130 rsa_key *key);
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131
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132 int rsa_v15_decrypt_key(const unsigned char *in, unsigned long inlen,
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133 unsigned char *out, unsigned long outlen,
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134 int *stat, rsa_key *key);
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135
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136 int rsa_v15_sign_hash(const unsigned char *in, unsigned long inlen,
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137 unsigned char *out, unsigned long *siglen,
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138 int hash_idx, rsa_key *key);
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139
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140 int rsa_v15_verify_hash(const unsigned char *sig, unsigned long siglen,
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141 const unsigned char *hash, unsigned long hashlen,
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142 int hash_idx, int *stat,
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143 rsa_key *key);
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144
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145
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146 /* PKCS #1 import/export */
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147 int rsa_export(unsigned char *out, unsigned long *outlen, int type, rsa_key *key);
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148 int rsa_import(const unsigned char *in, unsigned long inlen, rsa_key *key);
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149
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150 #endif
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151
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152 /* ---- DH Routines ---- */
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153 #ifdef MDH
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154
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155 typedef struct Dh_key {
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156 int idx, type;
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157 mp_int x, y;
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158 } dh_key;
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159
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160 int dh_test(void);
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161 void dh_sizes(int *low, int *high);
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162 int dh_get_size(dh_key *key);
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163
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164 int dh_make_key(prng_state *prng, int wprng, int keysize, dh_key *key);
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165 void dh_free(dh_key *key);
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166
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167 int dh_export(unsigned char *out, unsigned long *outlen, int type, dh_key *key);
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168 int dh_import(const unsigned char *in, unsigned long inlen, dh_key *key);
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169
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170 int dh_shared_secret(dh_key *private_key, dh_key *public_key,
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171 unsigned char *out, unsigned long *outlen);
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172
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173 int dh_encrypt_key(const unsigned char *in, unsigned long keylen,
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174 unsigned char *out, unsigned long *outlen,
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175 prng_state *prng, int wprng, int hash,
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176 dh_key *key);
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177
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178 int dh_decrypt_key(const unsigned char *in, unsigned long inlen,
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179 unsigned char *out, unsigned long *outlen,
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180 dh_key *key);
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181
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182 int dh_sign_hash(const unsigned char *in, unsigned long inlen,
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183 unsigned char *out, unsigned long *outlen,
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184 prng_state *prng, int wprng, dh_key *key);
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185
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186 int dh_verify_hash(const unsigned char *sig, unsigned long siglen,
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187 const unsigned char *hash, unsigned long hashlen,
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188 int *stat, dh_key *key);
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189
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190
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191 #endif
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192
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193 /* ---- ECC Routines ---- */
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194 #ifdef MECC
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195 typedef struct {
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196 mp_int x, y, z;
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197 } ecc_point;
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198
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199 typedef struct {
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200 int type, idx;
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201 ecc_point pubkey;
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202 mp_int k;
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203 } ecc_key;
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204
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205 int ecc_test(void);
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206 void ecc_sizes(int *low, int *high);
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207 int ecc_get_size(ecc_key *key);
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208
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209 int ecc_make_key(prng_state *prng, int wprng, int keysize, ecc_key *key);
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210 void ecc_free(ecc_key *key);
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211
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212 int ecc_export(unsigned char *out, unsigned long *outlen, int type, ecc_key *key);
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213 int ecc_import(const unsigned char *in, unsigned long inlen, ecc_key *key);
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214
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215 int ecc_shared_secret(ecc_key *private_key, ecc_key *public_key,
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216 unsigned char *out, unsigned long *outlen);
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217
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218 int ecc_encrypt_key(const unsigned char *in, unsigned long inlen,
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219 unsigned char *out, unsigned long *outlen,
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220 prng_state *prng, int wprng, int hash,
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221 ecc_key *key);
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222
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223 int ecc_decrypt_key(const unsigned char *in, unsigned long inlen,
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224 unsigned char *out, unsigned long *outlen,
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225 ecc_key *key);
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226
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227 int ecc_sign_hash(const unsigned char *in, unsigned long inlen,
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228 unsigned char *out, unsigned long *outlen,
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229 prng_state *prng, int wprng, ecc_key *key);
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230
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231 int ecc_verify_hash(const unsigned char *sig, unsigned long siglen,
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232 const unsigned char *hash, unsigned long hashlen,
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233 int *stat, ecc_key *key);
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234
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235 #endif
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236
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237 #ifdef MDSA
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238
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239 typedef struct {
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240 int type, qord;
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241 mp_int g, q, p, x, y;
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242 } dsa_key;
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243
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244 int dsa_make_key(prng_state *prng, int wprng, int group_size, int modulus_size, dsa_key *key);
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245 void dsa_free(dsa_key *key);
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246
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247 int dsa_sign_hash(const unsigned char *in, unsigned long inlen,
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248 unsigned char *out, unsigned long *outlen,
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249 prng_state *prng, int wprng, dsa_key *key);
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250
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251 int dsa_verify_hash(const unsigned char *sig, unsigned long siglen,
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252 const unsigned char *hash, unsigned long hashlen,
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253 int *stat, dsa_key *key);
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254
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255 int dsa_import(const unsigned char *in, unsigned long inlen, dsa_key *key);
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256
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257 int dsa_export(unsigned char *out, unsigned long *outlen, int type, dsa_key *key);
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258
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259 int dsa_verify_key(dsa_key *key, int *stat);
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260
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261 #endif
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262
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263 #ifdef LTC_DER
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264 /* DER handling */
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265 int der_encode_integer(mp_int *num, unsigned char *out, unsigned long *outlen);
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266 int der_decode_integer(const unsigned char *in, unsigned long *inlen, mp_int *num);
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267 int der_length_integer(mp_int *num, unsigned long *len);
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268 int der_put_multi_integer(unsigned char *dst, unsigned long *outlen, mp_int *num, ...);
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269 int der_get_multi_integer(const unsigned char *src, unsigned long *inlen, mp_int *num, ...);
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270 #endif