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annotate mycrypt_pk.h @ 0:d7da3b1e1540 libtomcrypt

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put back the 0.95 makefile which was inadvertently merged over
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:21:40 +0000
parents
children 6362d3854bb4
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0
d7da3b1e1540 put back the 0.95 makefile which was inadvertently merged over
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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 "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) \
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8 { \
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9 if ((y + 4) > *outlen) { return CRYPT_BUFFER_OVERFLOW; } \
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10 z = (unsigned long)mp_unsigned_bin_size(num); \
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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 extern int is_prime(mp_int *, int *);
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48 extern 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 #define PK_PRIVATE_OPTIMIZED 2 /* PK private key [rsa optimized] */
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71
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72 /* ---- PACKET ---- */
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73 #ifdef PACKET
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74
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75 extern void packet_store_header(unsigned char *dst, int section, int subsection);
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76 extern int packet_valid_header(unsigned char *src, int section, int subsection);
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77
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78 #endif
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79
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80
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81 /* ---- RSA ---- */
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82 #ifdef MRSA
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83
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84 /* Min and Max RSA key sizes (in bits) */
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85 #define MIN_RSA_SIZE 1024
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86 #define MAX_RSA_SIZE 4096
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87
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88 /* Stack required for temps (plus padding) */
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89 #define RSA_STACK (8 + (MAX_RSA_SIZE/8))
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90
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91 typedef struct Rsa_key {
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92 int type;
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93 mp_int e, d, N, qP, pQ, dP, dQ, p, q;
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94 } rsa_key;
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95
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96 extern int rsa_make_key(prng_state *prng, int wprng, int size, long e, rsa_key *key);
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97
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98 extern int rsa_exptmod(const unsigned char *in, unsigned long inlen,
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99 unsigned char *out, unsigned long *outlen, int which,
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100 rsa_key *key);
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101
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102 extern int rsa_pad(const unsigned char *in, unsigned long inlen,
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103 unsigned char *out, unsigned long *outlen,
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104 int wprng, prng_state *prng);
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105
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106 extern int rsa_signpad(const unsigned char *in, unsigned long inlen,
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107 unsigned char *out, unsigned long *outlen);
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108
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109 extern int rsa_depad(const unsigned char *in, unsigned long inlen,
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110 unsigned char *out, unsigned long *outlen);
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111
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112 extern int rsa_signdepad(const unsigned char *in, unsigned long inlen,
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113 unsigned char *out, unsigned long *outlen);
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114
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115
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116 extern void rsa_free(rsa_key *key);
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117
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118 extern int rsa_encrypt_key(const unsigned char *inkey, unsigned long inlen,
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119 unsigned char *outkey, unsigned long *outlen,
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120 prng_state *prng, int wprng, rsa_key *key);
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121
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122 extern int rsa_decrypt_key(const unsigned char *in, unsigned long inlen,
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123 unsigned char *outkey, unsigned long *keylen,
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124 rsa_key *key);
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125
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126 extern int rsa_sign_hash(const unsigned char *in, unsigned long inlen,
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127 unsigned char *out, unsigned long *outlen,
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128 rsa_key *key);
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129
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130 extern int rsa_verify_hash(const unsigned char *sig, unsigned long siglen,
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131 const unsigned char *hash, int *stat, rsa_key *key);
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132
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133 extern int rsa_export(unsigned char *out, unsigned long *outlen, int type, rsa_key *key);
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134 extern int rsa_import(const unsigned char *in, unsigned long inlen, rsa_key *key);
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135 #endif
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136
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137 /* ---- DH Routines ---- */
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138 #ifdef MDH
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139
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140 typedef struct Dh_key {
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141 int idx, type;
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142 mp_int x, y;
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143 } dh_key;
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144
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145 extern int dh_test(void);
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146 extern void dh_sizes(int *low, int *high);
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147 extern int dh_get_size(dh_key *key);
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148
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149 extern int dh_make_key(prng_state *prng, int wprng, int keysize, dh_key *key);
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150 extern void dh_free(dh_key *key);
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151
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152 extern int dh_export(unsigned char *out, unsigned long *outlen, int type, dh_key *key);
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153 extern int dh_import(const unsigned char *in, unsigned long inlen, dh_key *key);
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154
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155 extern int dh_shared_secret(dh_key *private_key, dh_key *public_key,
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156 unsigned char *out, unsigned long *outlen);
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157
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158 extern int dh_encrypt_key(const unsigned char *inkey, unsigned long keylen,
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159 unsigned char *out, unsigned long *len,
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160 prng_state *prng, int wprng, int hash,
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161 dh_key *key);
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162
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163 extern int dh_decrypt_key(const unsigned char *in, unsigned long inlen,
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164 unsigned char *outkey, unsigned long *keylen,
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165 dh_key *key);
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166
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167 extern int dh_sign_hash(const unsigned char *in, unsigned long inlen,
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168 unsigned char *out, unsigned long *outlen,
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169 prng_state *prng, int wprng, dh_key *key);
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170
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171 extern int dh_verify_hash(const unsigned char *sig, unsigned long siglen,
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172 const unsigned char *hash, unsigned long hashlen,
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173 int *stat, dh_key *key);
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174
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175
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176 #endif
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177
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178 /* ---- ECC Routines ---- */
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179 #ifdef MECC
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180 typedef struct {
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181 mp_int x, y;
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182 } ecc_point;
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183
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184 typedef struct {
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185 int type, idx;
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186 ecc_point pubkey;
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187 mp_int k;
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188 } ecc_key;
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189
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190 extern int ecc_test(void);
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191 extern void ecc_sizes(int *low, int *high);
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192 extern int ecc_get_size(ecc_key *key);
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193
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194 extern int ecc_make_key(prng_state *prng, int wprng, int keysize, ecc_key *key);
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195 extern void ecc_free(ecc_key *key);
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196
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197 extern int ecc_export(unsigned char *out, unsigned long *outlen, int type, ecc_key *key);
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198 extern int ecc_import(const unsigned char *in, unsigned long inlen, ecc_key *key);
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199
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200 extern int ecc_shared_secret(ecc_key *private_key, ecc_key *public_key,
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201 unsigned char *out, unsigned long *outlen);
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202
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203 extern int ecc_encrypt_key(const unsigned char *inkey, unsigned long keylen,
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204 unsigned char *out, unsigned long *len,
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205 prng_state *prng, int wprng, int hash,
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206 ecc_key *key);
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207
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208 extern int ecc_decrypt_key(const unsigned char *in, unsigned long inlen,
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209 unsigned char *outkey, unsigned long *keylen,
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210 ecc_key *key);
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211
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212 extern int ecc_sign_hash(const unsigned char *in, unsigned long inlen,
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213 unsigned char *out, unsigned long *outlen,
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214 prng_state *prng, int wprng, ecc_key *key);
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215
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216 extern int ecc_verify_hash(const unsigned char *sig, unsigned long siglen,
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217 const unsigned char *hash, unsigned long hashlen,
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218 int *stat, ecc_key *key);
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219 #endif
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220
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221 #ifdef MDSA
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222
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223 typedef struct {
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224 int type, qord;
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225 mp_int g, q, p, x, y;
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226 } dsa_key;
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227
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228 extern int dsa_make_key(prng_state *prng, int wprng, int group_size, int modulus_size, dsa_key *key);
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229 extern void dsa_free(dsa_key *key);
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230
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231 extern int dsa_sign_hash(const unsigned char *in, unsigned long inlen,
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232 unsigned char *out, unsigned long *outlen,
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233 prng_state *prng, int wprng, dsa_key *key);
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234
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235 extern int dsa_verify_hash(const unsigned char *sig, unsigned long siglen,
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236 const unsigned char *hash, unsigned long inlen,
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237 int *stat, dsa_key *key);
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238
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239 extern int dsa_import(const unsigned char *in, unsigned long inlen, dsa_key *key);
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240
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241 extern int dsa_export(unsigned char *out, unsigned long *outlen, int type, dsa_key *key);
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242
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243 extern int dsa_verify_key(dsa_key *key, int *stat);
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244
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245 #endif