[331] | 1 | /*
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| 2 | ** digest.c - Digest and subclasses
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| 3 | **
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| 4 | ** See Copyright Notice in mruby.h
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| 5 | */
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| 6 |
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| 7 | #include "mruby.h"
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| 8 |
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| 9 | #ifdef __APPLE__
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| 10 | #define USE_DIGEST_OSX_COMMONCRYPTO
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| 11 | #else
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| 12 | #define USE_DIGEST_OPENSSL
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| 13 | #endif
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| 14 |
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| 15 | #if defined(USE_DIGEST_OPENSSL)
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| 16 | #include <openssl/evp.h>
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| 17 | #include <openssl/hmac.h>
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| 18 | #include <openssl/sha.h>
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| 19 | #elif defined(USE_DIGEST_OSX_COMMONCRYPTO)
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| 20 | #include <CommonCrypto/CommonDigest.h>
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| 21 | #include <CommonCrypto/CommonHMAC.h>
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| 22 | #else
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| 23 | #error "define USE_DIGEST_OPENSSL or USE_DIGEST_OSX_COMMONCRYPTO"
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| 24 | #endif
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| 25 | #include <limits.h>
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| 26 | #include <stdio.h>
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| 27 | #include <string.h>
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| 28 | #include "mruby/array.h"
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| 29 | #include "mruby/class.h"
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| 30 | #include "mruby/data.h"
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| 31 | #include "mruby/string.h"
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| 32 | #include "mruby/variable.h"
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| 33 |
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| 34 | #define TYPESYM "__type__"
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| 35 |
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| 36 |
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| 37 | /*
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| 38 | * library-independent layer API
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| 39 | */
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| 40 | enum {
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| 41 | MD_TYPE_MD5,
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| 42 | MD_TYPE_RMD160,
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| 43 | MD_TYPE_SHA1,
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| 44 | MD_TYPE_SHA256,
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| 45 | MD_TYPE_SHA384,
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| 46 | MD_TYPE_SHA512,
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| 47 | };
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| 48 |
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| 49 | struct mrb_md;
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| 50 | struct mrb_hmac;
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| 51 |
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| 52 | static void lib_init(void);
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| 53 | static int lib_md_block_length(const struct mrb_md *);
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| 54 | static mrb_value lib_md_digest(mrb_state *, const struct mrb_md *);
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| 55 | static mrb_value lib_md_digest_bang(mrb_state *, struct mrb_md *);
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| 56 | static int lib_md_digest_length(const struct mrb_md *);
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| 57 | static void lib_md_free(mrb_state *, void *);
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| 58 | static void lib_md_init(mrb_state *, struct mrb_md *, int);
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| 59 | static void lib_md_init_copy(mrb_state *, struct mrb_md *, struct mrb_md *);
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| 60 | static void lib_md_reset(mrb_state *, struct mrb_md *);
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| 61 | static void lib_md_update(mrb_state *, struct mrb_md *, unsigned char *, mrb_int);
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| 62 |
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| 63 | static mrb_value lib_hmac_digest(mrb_state *, const struct mrb_hmac *);
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| 64 | static int lib_hmac_block_length(const struct mrb_hmac *);
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| 65 | static int lib_hmac_digest_length(const struct mrb_hmac *);
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| 66 | static void lib_hmac_free(mrb_state *, void *);
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| 67 | static void lib_hmac_init(mrb_state *, struct mrb_hmac *, int, const unsigned char *, mrb_int);
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| 68 | static void lib_hmac_update(mrb_state *, struct mrb_hmac *, unsigned char *, mrb_int);
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| 69 |
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| 70 |
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| 71 | #if defined(USE_DIGEST_OPENSSL)
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| 72 | /*
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| 73 | * OpenSSL Implementation
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| 74 | */
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| 75 |
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| 76 | #define HAVE_MD5
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| 77 |
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| 78 | #ifndef OPENSSL_NO_RIPEMD
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| 79 | #define HAVE_RMD160
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| 80 | #endif
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| 81 |
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| 82 | #define HAVE_SHA1
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| 83 | #ifdef SHA256_DIGEST_LENGTH
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| 84 | #define HAVE_SHA256
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| 85 | #endif
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| 86 | #ifdef SHA512_DIGEST_LENGTH
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| 87 | #define HAVE_SHA384
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| 88 | #define HAVE_SHA512
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| 89 | #endif
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| 90 |
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| 91 | struct mrb_md {
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| 92 | EVP_MD_CTX *ctx;
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| 93 | };
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| 94 |
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| 95 | struct mrb_hmac {
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| 96 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 97 | HMAC_CTX *ctx;
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| 98 | #else
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| 99 | HMAC_CTX ctx;
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| 100 | #endif
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| 101 | const EVP_MD *md;
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| 102 | };
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| 103 |
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| 104 | static void
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| 105 | lib_md_free(mrb_state *mrb, void *ptr)
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| 106 | {
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| 107 | struct mrb_md *md = ptr;
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| 108 |
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| 109 | if (md != NULL) {
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| 110 | if (md->ctx != NULL) {
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| 111 | EVP_MD_CTX_destroy(md->ctx);
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| 112 | }
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| 113 | mrb_free(mrb, md);
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| 114 | }
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| 115 | }
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| 116 |
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| 117 | static void
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| 118 | lib_hmac_free(mrb_state *mrb, void *ptr)
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| 119 | {
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| 120 | struct mrb_hmac *hmac = ptr;
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| 121 |
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| 122 | if (hmac != NULL) {
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| 123 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 124 | HMAC_CTX_free(hmac->ctx);
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| 125 | #else
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| 126 | HMAC_CTX_cleanup(&hmac->ctx);
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| 127 | #endif
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| 128 | mrb_free(mrb, hmac);
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| 129 | }
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| 130 | }
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| 131 |
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| 132 | static struct mrb_data_type mrb_md_type = { "MD", lib_md_free };
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| 133 | static struct mrb_data_type mrb_hmac_type = { "HMAC", lib_hmac_free };
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| 134 |
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| 135 | static void
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| 136 | lib_init(void)
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| 137 | {
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| 138 | OpenSSL_add_all_digests();
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| 139 | }
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| 140 |
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| 141 | static int
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| 142 | lib_md_block_length(const struct mrb_md *md)
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| 143 | {
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| 144 | return EVP_MD_CTX_block_size(md->ctx);
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| 145 | }
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| 146 |
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| 147 | static mrb_value
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| 148 | lib_md_digest(mrb_state *mrb, const struct mrb_md *md)
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| 149 | {
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| 150 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 151 | EVP_MD_CTX *ctx;
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| 152 | #else
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| 153 | EVP_MD_CTX ctx;
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| 154 | #endif
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| 155 | unsigned int mdlen;
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| 156 | unsigned char mdstr[EVP_MAX_MD_SIZE];
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| 157 |
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| 158 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 159 | ctx = EVP_MD_CTX_new();
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| 160 | EVP_MD_CTX_copy(ctx, md->ctx);
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| 161 | EVP_DigestFinal(ctx, mdstr, &mdlen);
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| 162 | EVP_MD_CTX_free(ctx);
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| 163 | #else
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| 164 | EVP_MD_CTX_copy(&ctx, md->ctx);
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| 165 | EVP_DigestFinal(&ctx, mdstr, &mdlen);
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| 166 | #endif
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| 167 | return mrb_str_new(mrb, (char *)mdstr, mdlen);
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| 168 | }
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| 169 |
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| 170 | static mrb_value
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| 171 | lib_md_digest_bang(mrb_state *mrb, struct mrb_md *md)
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| 172 | {
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| 173 | unsigned int mdlen;
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| 174 | unsigned char mdstr[EVP_MAX_MD_SIZE];
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| 175 |
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| 176 | EVP_DigestFinal_ex(md->ctx, mdstr, &mdlen);
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| 177 | EVP_DigestInit_ex(md->ctx, EVP_MD_CTX_md(md->ctx), NULL);
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| 178 | return mrb_str_new(mrb, (char *)mdstr, mdlen);
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| 179 | }
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| 180 |
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| 181 | static int
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| 182 | lib_md_digest_length(const struct mrb_md *md)
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| 183 | {
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| 184 | return EVP_MD_CTX_size(md->ctx);
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| 185 | }
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| 186 |
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| 187 | const EVP_MD *
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| 188 | md_type_md(int type)
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| 189 | {
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| 190 | switch (type) {
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| 191 | case MD_TYPE_MD5: return EVP_md5();
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| 192 | #ifdef HAVE_RMD160
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| 193 | case MD_TYPE_RMD160: return EVP_ripemd160();
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| 194 | #endif
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| 195 | case MD_TYPE_SHA1: return EVP_sha1();
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| 196 | #ifdef HAVE_SHA256
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| 197 | case MD_TYPE_SHA256: return EVP_sha256();
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| 198 | #endif
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| 199 | #ifdef HAVE_SHA512
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| 200 | case MD_TYPE_SHA384: return EVP_sha384();
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| 201 | case MD_TYPE_SHA512: return EVP_sha512();
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| 202 | #endif
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| 203 | default: return NULL;
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| 204 | }
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| 205 | }
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| 206 |
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| 207 | static void
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| 208 | lib_md_init(mrb_state *mrb, struct mrb_md *md, int type)
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| 209 | {
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| 210 | const EVP_MD *evpmd;
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| 211 |
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| 212 | md->ctx = NULL;
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| 213 | evpmd = md_type_md(type);
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| 214 | if (!evpmd) {
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| 215 | mrb_raise(mrb, E_NOTIMP_ERROR, "not supported");
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| 216 | }
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| 217 | md->ctx = EVP_MD_CTX_create();
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| 218 | EVP_DigestInit_ex(md->ctx, evpmd, NULL);
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| 219 | }
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| 220 |
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| 221 | static void
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| 222 | lib_md_init_copy(mrb_state *mrb, struct mrb_md *mdnew, struct mrb_md *mdold)
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| 223 | {
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| 224 | mdnew->ctx = EVP_MD_CTX_create();
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| 225 | EVP_DigestInit_ex(mdnew->ctx, EVP_MD_CTX_md(mdold->ctx), NULL);
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| 226 | }
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| 227 |
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| 228 | static void
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| 229 | lib_md_reset(mrb_state *mrb, struct mrb_md *md)
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| 230 | {
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| 231 | //EVP_MD_CTX_init(&md->ctx);
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| 232 | EVP_DigestInit_ex(md->ctx, EVP_MD_CTX_md(md->ctx), NULL);
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| 233 | }
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| 234 |
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| 235 | static void
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| 236 | lib_md_update(mrb_state *mrb, struct mrb_md *md, unsigned char *str, mrb_int len)
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| 237 | {
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| 238 | #if MRB_INT_MAX > SIZE_MAX
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| 239 | if (len > SIZE_MAX) {
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| 240 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too long string (not supported yet)");
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| 241 | }
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| 242 | #endif
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| 243 | EVP_DigestUpdate(md->ctx, str, len);
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| 244 | }
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| 245 |
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| 246 | static mrb_value
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| 247 | lib_hmac_digest(mrb_state *mrb, const struct mrb_hmac *hmac)
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| 248 | {
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| 249 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 250 | HMAC_CTX *ctx;
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| 251 | #else
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| 252 | HMAC_CTX ctx;
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| 253 | #endif
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| 254 | unsigned int mdlen;
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| 255 | unsigned char mdstr[EVP_MAX_MD_SIZE];
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| 256 |
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| 257 | memcpy(&ctx, &hmac->ctx, sizeof(ctx));
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| 258 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 259 | HMAC_Final(ctx, mdstr, &mdlen);
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| 260 | #else
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| 261 | HMAC_Final(&ctx, mdstr, &mdlen);
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| 262 | #endif
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| 263 | return mrb_str_new(mrb, (char *)mdstr, mdlen);
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| 264 | }
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| 265 |
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| 266 | static int
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| 267 | lib_hmac_block_length(const struct mrb_hmac *hmac)
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| 268 | {
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| 269 | return EVP_MD_block_size(hmac->md);
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| 270 | }
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| 271 |
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| 272 | static int
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| 273 | lib_hmac_digest_length(const struct mrb_hmac *hmac)
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| 274 | {
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| 275 | return EVP_MD_size(hmac->md);
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| 276 | }
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| 277 |
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| 278 | static void
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| 279 | lib_hmac_init(mrb_state *mrb, struct mrb_hmac *hmac, int type, const unsigned char *key, mrb_int keylen)
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| 280 | {
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| 281 | #if MRB_INT_MAX > INT_MAX
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| 282 | if (keylen > INT_MAX) {
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| 283 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too long key");
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| 284 | }
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| 285 | #endif
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| 286 | hmac->md = md_type_md(type);
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| 287 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 288 | hmac->ctx = HMAC_CTX_new();
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| 289 | HMAC_Init_ex(hmac->ctx, key, keylen, hmac->md, NULL);
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| 290 | #else
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| 291 | HMAC_CTX_init(&hmac->ctx);
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| 292 | HMAC_Init_ex(&hmac->ctx, key, keylen, hmac->md, NULL);
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| 293 | #endif
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| 294 | }
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| 295 |
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| 296 | static void
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| 297 | lib_hmac_update(mrb_state *mrb, struct mrb_hmac *hmac, unsigned char *data, mrb_int len)
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| 298 | {
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| 299 | #if MRB_INT_MAX > INT_MAX
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| 300 | if (len > INT_MAX) {
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| 301 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too long string (not supported yet)");
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| 302 | }
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| 303 | #endif
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| 304 | #if (OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined LIBRESSL_VERSION_NUMBER)
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| 305 | HMAC_Update(hmac->ctx, data, len);
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| 306 | #else
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| 307 | HMAC_Update(&hmac->ctx, data, len);
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| 308 | #endif
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| 309 | }
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| 310 |
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| 311 | #elif defined(USE_DIGEST_OSX_COMMONCRYPTO)
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| 312 | /*
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| 313 | * Mac OS X CommonCrypto Implementation
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| 314 | */
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| 315 |
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| 316 | #define HAVE_MD5
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| 317 | /* #define HAVE_RMD160 */
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| 318 | #define HAVE_SHA1
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| 319 | #define HAVE_SHA256
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| 320 | #define HAVE_SHA384
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| 321 | #define HAVE_SHA512
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| 322 |
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| 323 | struct mrb_md {
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| 324 | int type;
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| 325 | void *ctx;
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| 326 | int ctx_size;
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| 327 | };
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| 328 |
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| 329 | struct mrb_hmac {
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| 330 | int type;
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| 331 | CCHmacContext ctx;
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| 332 | };
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| 333 |
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| 334 | static int
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| 335 | md_ctx_size(int type)
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| 336 | {
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| 337 | switch (type) {
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| 338 | case MD_TYPE_MD5: return sizeof(CC_MD5_CTX);
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| 339 | case MD_TYPE_SHA1: return sizeof(CC_SHA1_CTX);
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| 340 | case MD_TYPE_SHA256: return sizeof(CC_SHA256_CTX);
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| 341 | case MD_TYPE_SHA384: return sizeof(CC_SHA512_CTX); /* ! */
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| 342 | case MD_TYPE_SHA512: return sizeof(CC_SHA512_CTX);
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| 343 | default: return 0;
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| 344 | }
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| 345 | }
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| 346 |
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| 347 | static void
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| 348 | lib_md_free(mrb_state *mrb, void *ptr)
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| 349 | {
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| 350 | struct mrb_md *md = ptr;
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| 351 |
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| 352 | memset(md->ctx, 0, md_ctx_size(md->type));
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| 353 | mrb_free(mrb, md->ctx);
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| 354 | mrb_free(mrb, md);
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| 355 | }
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| 356 |
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| 357 | static void
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| 358 | lib_hmac_free(mrb_state *mrb, void *ptr)
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| 359 | {
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| 360 | struct mrb_hmac *hmac = ptr;
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| 361 |
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| 362 | memset(&hmac->ctx, 0, sizeof(hmac->ctx));
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| 363 | mrb_free(mrb, hmac);
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| 364 | }
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| 365 |
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| 366 | static struct mrb_data_type mrb_md_type = { "MD", lib_md_free };
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| 367 | static struct mrb_data_type mrb_hmac_type = { "HMAC", lib_hmac_free };
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| 368 |
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| 369 | #define MAX_DIGEST_LENGTH CC_SHA512_DIGEST_LENGTH
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| 370 |
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| 371 | union ctx_union {
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| 372 | CC_MD5_CTX md5;
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| 373 | CC_SHA1_CTX sha1;
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| 374 | CC_SHA256_CTX sha256;
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| 375 | /* we don't have CC_SHA384_CTX! */
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| 376 | CC_SHA512_CTX sha512;
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| 377 | };
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| 378 |
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| 379 | static void
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| 380 | lib_init(void)
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| 381 | {
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| 382 | }
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| 383 |
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| 384 | static int
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| 385 | md_block_length(int type)
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| 386 | {
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| 387 | switch (type) {
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| 388 | case MD_TYPE_MD5: return CC_MD5_BLOCK_BYTES;
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| 389 | case MD_TYPE_SHA1: return CC_SHA1_BLOCK_BYTES;
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| 390 | case MD_TYPE_SHA256: return CC_SHA256_BLOCK_BYTES;
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| 391 | case MD_TYPE_SHA384: return CC_SHA384_BLOCK_BYTES;
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| 392 | case MD_TYPE_SHA512: return CC_SHA512_BLOCK_BYTES;
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| 393 | default: return 0;
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| 394 | }
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| 395 | }
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| 396 |
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| 397 | static int
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| 398 | lib_md_block_length(const struct mrb_md *md)
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| 399 | {
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| 400 | return md_block_length(md->type);
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| 401 | }
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| 402 |
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| 403 | static void
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| 404 | md_init(int type, void *ctxp)
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| 405 | {
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| 406 | switch (type) {
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| 407 | case MD_TYPE_MD5: CC_MD5_Init(ctxp); break;
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| 408 | case MD_TYPE_SHA1: CC_SHA1_Init(ctxp); break;
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| 409 | case MD_TYPE_SHA256: CC_SHA256_Init(ctxp); break;
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| 410 | case MD_TYPE_SHA384: CC_SHA384_Init(ctxp); break;
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| 411 | case MD_TYPE_SHA512: CC_SHA512_Init(ctxp); break;
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| 412 | default: break;
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| 413 | }
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| 414 | }
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| 415 |
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| 416 | static void
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| 417 | md_final(int type, unsigned char *str, void *ctx)
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| 418 | {
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| 419 | switch (type) {
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| 420 | case MD_TYPE_MD5: CC_MD5_Final(str, ctx); break;
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| 421 | case MD_TYPE_SHA1: CC_SHA1_Final(str, ctx); break;
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| 422 | case MD_TYPE_SHA256: CC_SHA256_Final(str, ctx); break;
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| 423 | case MD_TYPE_SHA384: CC_SHA384_Final(str, ctx); break;
|
---|
| 424 | case MD_TYPE_SHA512: CC_SHA512_Final(str, ctx); break;
|
---|
| 425 | default: break;
|
---|
| 426 | }
|
---|
| 427 | }
|
---|
| 428 |
|
---|
| 429 | static int
|
---|
| 430 | md_digest_length(int type)
|
---|
| 431 | {
|
---|
| 432 | switch (type) {
|
---|
| 433 | case MD_TYPE_MD5: return 16;
|
---|
| 434 | case MD_TYPE_SHA1: return 20;
|
---|
| 435 | case MD_TYPE_SHA256: return 32;
|
---|
| 436 | case MD_TYPE_SHA384: return 48;
|
---|
| 437 | case MD_TYPE_SHA512: return 64;
|
---|
| 438 | default: return 0;
|
---|
| 439 | }
|
---|
| 440 | }
|
---|
| 441 |
|
---|
| 442 | static mrb_value
|
---|
| 443 | lib_md_digest(mrb_state *mrb, const struct mrb_md *md)
|
---|
| 444 | {
|
---|
| 445 | union ctx_union ctx;
|
---|
| 446 | unsigned char mdstr[MAX_DIGEST_LENGTH];
|
---|
| 447 |
|
---|
| 448 | memcpy(&ctx, md->ctx, md_ctx_size(md->type));
|
---|
| 449 | md_final(md->type, mdstr, &ctx);
|
---|
| 450 | return mrb_str_new(mrb, (char *)mdstr, md_digest_length(md->type));
|
---|
| 451 | }
|
---|
| 452 |
|
---|
| 453 | static mrb_value
|
---|
| 454 | lib_md_digest_bang(mrb_state *mrb, struct mrb_md *md)
|
---|
| 455 | {
|
---|
| 456 | unsigned char mdstr[MAX_DIGEST_LENGTH];
|
---|
| 457 |
|
---|
| 458 | md_final(md->type, mdstr, md->ctx);
|
---|
| 459 | md_init(md->type, md->ctx);
|
---|
| 460 | return mrb_str_new(mrb, (char *)mdstr, md_digest_length(md->type));
|
---|
| 461 | }
|
---|
| 462 |
|
---|
| 463 | static int
|
---|
| 464 | lib_md_digest_length(const struct mrb_md *md)
|
---|
| 465 | {
|
---|
| 466 | return md_digest_length(md->type);
|
---|
| 467 | }
|
---|
| 468 |
|
---|
| 469 | static void
|
---|
| 470 | lib_md_init(mrb_state *mrb, struct mrb_md *md, int type)
|
---|
| 471 | {
|
---|
| 472 | int ctxsize;
|
---|
| 473 |
|
---|
| 474 | ctxsize = md_ctx_size(type);
|
---|
| 475 | if (ctxsize == 0) {
|
---|
| 476 | mrb_raise(mrb, E_NOTIMP_ERROR, "not supported");
|
---|
| 477 | }
|
---|
| 478 | md->type = type;
|
---|
| 479 | md->ctx = NULL;
|
---|
| 480 | md->ctx = mrb_malloc(mrb, ctxsize);
|
---|
| 481 | md_init(type, md->ctx);
|
---|
| 482 | }
|
---|
| 483 |
|
---|
| 484 | static void
|
---|
| 485 | lib_md_init_copy(mrb_state *mrb, struct mrb_md *mdnew, struct mrb_md *mdold)
|
---|
| 486 | {
|
---|
| 487 | lib_md_init(mrb, mdnew, mdold->type);
|
---|
| 488 | }
|
---|
| 489 |
|
---|
| 490 | static void
|
---|
| 491 | lib_md_reset(mrb_state *mrb, struct mrb_md *md)
|
---|
| 492 | {
|
---|
| 493 | md_init(md->type, md->ctx);
|
---|
| 494 | }
|
---|
| 495 |
|
---|
| 496 | static void
|
---|
| 497 | lib_md_update(mrb_state *mrb, struct mrb_md *md, unsigned char *data, mrb_int len)
|
---|
| 498 | {
|
---|
| 499 | if (sizeof(len) > sizeof(CC_LONG)) {
|
---|
| 500 | if (len != (CC_LONG)len) {
|
---|
| 501 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too long string (not supported yet)");
|
---|
| 502 | }
|
---|
| 503 | }
|
---|
| 504 | switch (md->type) {
|
---|
| 505 | case MD_TYPE_MD5: CC_MD5_Update(md->ctx, data, len); break;
|
---|
| 506 | case MD_TYPE_SHA1: CC_SHA1_Update(md->ctx, data, len); break;
|
---|
| 507 | case MD_TYPE_SHA256: CC_SHA256_Update(md->ctx, data, len); break;
|
---|
| 508 | case MD_TYPE_SHA384: CC_SHA384_Update(md->ctx, data, len); break;
|
---|
| 509 | case MD_TYPE_SHA512: CC_SHA512_Update(md->ctx, data, len); break;
|
---|
| 510 | default: break;
|
---|
| 511 | }
|
---|
| 512 | }
|
---|
| 513 |
|
---|
| 514 | static int
|
---|
| 515 | lib_hmac_block_length(const struct mrb_hmac *hmac)
|
---|
| 516 | {
|
---|
| 517 | return md_block_length(hmac->type);
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 | static mrb_value
|
---|
| 521 | lib_hmac_digest(mrb_state *mrb, const struct mrb_hmac *hmac)
|
---|
| 522 | {
|
---|
| 523 | CCHmacContext ctx;
|
---|
| 524 | unsigned char str[MAX_DIGEST_LENGTH];
|
---|
| 525 |
|
---|
| 526 | memcpy(&ctx, &hmac->ctx, sizeof(ctx));
|
---|
| 527 | CCHmacFinal(&ctx, str);
|
---|
| 528 | return mrb_str_new(mrb, (const char *)str, md_digest_length(hmac->type));
|
---|
| 529 | }
|
---|
| 530 |
|
---|
| 531 | static int
|
---|
| 532 | lib_hmac_digest_length(const struct mrb_hmac *hmac)
|
---|
| 533 | {
|
---|
| 534 | return md_digest_length(hmac->type);
|
---|
| 535 | }
|
---|
| 536 |
|
---|
| 537 | static void
|
---|
| 538 | lib_hmac_init(mrb_state *mrb, struct mrb_hmac *hmac, int type, const unsigned char *key, mrb_int keylen)
|
---|
| 539 | {
|
---|
| 540 | CCHmacAlgorithm algorithm;
|
---|
| 541 |
|
---|
| 542 | #if MRB_INT_MAX > SIZE_MAX
|
---|
| 543 | if (len > SIZE_MAX) {
|
---|
| 544 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too long key");
|
---|
| 545 | }
|
---|
| 546 | #endif
|
---|
| 547 | switch (type) {
|
---|
| 548 | case MD_TYPE_MD5: algorithm = kCCHmacAlgMD5; break;
|
---|
| 549 | case MD_TYPE_SHA1: algorithm = kCCHmacAlgSHA1; break;
|
---|
| 550 | case MD_TYPE_SHA256: algorithm = kCCHmacAlgSHA256; break;
|
---|
| 551 | case MD_TYPE_SHA384: algorithm = kCCHmacAlgSHA384; break;
|
---|
| 552 | case MD_TYPE_SHA512: algorithm = kCCHmacAlgSHA512; break;
|
---|
| 553 | default:
|
---|
| 554 | mrb_raisef(mrb, E_RUNTIME_ERROR, "mruby-digest: internal error: unexpected HMAC type: %S", mrb_fixnum_value(type));
|
---|
| 555 | algorithm = 0;
|
---|
| 556 | break;
|
---|
| 557 | }
|
---|
| 558 | hmac->type = type;
|
---|
| 559 | CCHmacInit(&hmac->ctx, algorithm, key, keylen);
|
---|
| 560 | }
|
---|
| 561 |
|
---|
| 562 | static void
|
---|
| 563 | lib_hmac_update(mrb_state *mrb, struct mrb_hmac *hmac, unsigned char *data, mrb_int len)
|
---|
| 564 | {
|
---|
| 565 | #if MRB_INT_MAX > SIZE_MAX
|
---|
| 566 | if (len > SIZE_MAX) {
|
---|
| 567 | mrb_raise(mrb, E_ARGUMENT_ERROR, "too long string");
|
---|
| 568 | }
|
---|
| 569 | #endif
|
---|
| 570 | CCHmacUpdate(&hmac->ctx, data, len);
|
---|
| 571 | }
|
---|
| 572 |
|
---|
| 573 | #endif
|
---|
| 574 |
|
---|
| 575 | static void
|
---|
| 576 | basecheck(mrb_state *mrb, mrb_value self, struct mrb_md **mdp)
|
---|
| 577 | {
|
---|
| 578 | struct RClass *c;
|
---|
| 579 | struct mrb_md *md;
|
---|
| 580 | mrb_value t;
|
---|
| 581 |
|
---|
| 582 | c = mrb_obj_class(mrb, self);
|
---|
| 583 | t = mrb_const_get(mrb, mrb_obj_value(c), mrb_intern_lit(mrb, TYPESYM));
|
---|
| 584 | if (mrb_nil_p(t)) {
|
---|
| 585 | mrb_raise(mrb, E_NOTIMP_ERROR, "Digest::Base is an abstract class");
|
---|
| 586 | }
|
---|
| 587 | md = (struct mrb_md *)DATA_PTR(self);
|
---|
| 588 | if (!md) {
|
---|
| 589 | mrb_raise(mrb, E_RUNTIME_ERROR, "no md found (BUG?)");
|
---|
| 590 | }
|
---|
| 591 | if (mdp) *mdp = md;
|
---|
| 592 | }
|
---|
| 593 |
|
---|
| 594 | static mrb_value
|
---|
| 595 | mrb_digest_block_length(mrb_state *mrb, mrb_value self)
|
---|
| 596 | {
|
---|
| 597 | struct mrb_md *md;
|
---|
| 598 |
|
---|
| 599 | basecheck(mrb, self, &md);
|
---|
| 600 | return mrb_fixnum_value(lib_md_block_length(md));
|
---|
| 601 | }
|
---|
| 602 |
|
---|
| 603 | static mrb_value
|
---|
| 604 | mrb_digest_digest(mrb_state *mrb, mrb_value self)
|
---|
| 605 | {
|
---|
| 606 | struct mrb_md *md;
|
---|
| 607 |
|
---|
| 608 | md = (struct mrb_md *)DATA_PTR(self);
|
---|
| 609 | if (!md) return mrb_nil_value();
|
---|
| 610 | return lib_md_digest(mrb, md);
|
---|
| 611 | }
|
---|
| 612 |
|
---|
| 613 | static mrb_value
|
---|
| 614 | mrb_digest_digest_bang(mrb_state *mrb, mrb_value self)
|
---|
| 615 | {
|
---|
| 616 | struct mrb_md *md;
|
---|
| 617 |
|
---|
| 618 | md = (struct mrb_md *)DATA_PTR(self);
|
---|
| 619 | if (!md) return mrb_nil_value();
|
---|
| 620 | return lib_md_digest_bang(mrb, md);
|
---|
| 621 | }
|
---|
| 622 |
|
---|
| 623 | static mrb_value
|
---|
| 624 | mrb_digest_digest_length(mrb_state *mrb, mrb_value self)
|
---|
| 625 | {
|
---|
| 626 | struct mrb_md *md;
|
---|
| 627 |
|
---|
| 628 | basecheck(mrb, self, &md);
|
---|
| 629 | return mrb_fixnum_value(lib_md_digest_length(md));
|
---|
| 630 | }
|
---|
| 631 |
|
---|
| 632 | static mrb_value
|
---|
| 633 | digest2hexdigest(mrb_state *mrb, mrb_value b)
|
---|
| 634 | {
|
---|
| 635 | mrb_value h;
|
---|
| 636 | int i, len;
|
---|
| 637 | char *bp, buf[3];
|
---|
| 638 |
|
---|
| 639 | bp = RSTRING_PTR(b);
|
---|
| 640 | len = RSTRING_LEN(b);
|
---|
| 641 | h = mrb_str_buf_new(mrb, len * 2);
|
---|
| 642 | for (i = 0; i < len; i++) {
|
---|
| 643 | snprintf(buf, sizeof(buf), "%02x", (unsigned char )bp[i]);
|
---|
| 644 | mrb_str_buf_cat(mrb, h, buf, 2);
|
---|
| 645 | }
|
---|
| 646 | return h;
|
---|
| 647 | }
|
---|
| 648 |
|
---|
| 649 | static mrb_value
|
---|
| 650 | mrb_digest_hexdigest(mrb_state *mrb, mrb_value self)
|
---|
| 651 | {
|
---|
| 652 | return digest2hexdigest(mrb, mrb_digest_digest(mrb, self));
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | static mrb_value
|
---|
| 656 | mrb_digest_init(mrb_state *mrb, mrb_value self)
|
---|
| 657 | {
|
---|
| 658 | struct RClass *c;
|
---|
| 659 | struct mrb_md *md;
|
---|
| 660 | mrb_value t;
|
---|
| 661 |
|
---|
| 662 | md = (struct mrb_md *)DATA_PTR(self);
|
---|
| 663 | if (md) {
|
---|
| 664 | lib_md_free(mrb, md);
|
---|
| 665 | }
|
---|
| 666 | DATA_TYPE(self) = &mrb_md_type;
|
---|
| 667 | DATA_PTR(self) = NULL;
|
---|
| 668 |
|
---|
| 669 | c = mrb_obj_class(mrb, self);
|
---|
| 670 | if (!mrb_const_defined(mrb, mrb_obj_value(c), mrb_intern_lit(mrb, TYPESYM))) {
|
---|
| 671 | mrb_raise(mrb, E_NOTIMP_ERROR, "Digest::Base is an abstract class");
|
---|
| 672 | }
|
---|
| 673 | t = mrb_const_get(mrb, mrb_obj_value(c), mrb_intern_lit(mrb, TYPESYM));
|
---|
| 674 | #if 0
|
---|
| 675 | if (lib_md_supported(t)) {
|
---|
| 676 | mrb_raise(mrb, E_NOTIMP_ERROR, "unknown algorithm");
|
---|
| 677 | }
|
---|
| 678 | #endif
|
---|
| 679 |
|
---|
| 680 | md = (struct mrb_md *)mrb_malloc(mrb, sizeof(*md));
|
---|
| 681 | DATA_PTR(self) = md;
|
---|
| 682 | lib_md_init(mrb, md, mrb_fixnum(t));
|
---|
| 683 | return self;
|
---|
| 684 | }
|
---|
| 685 |
|
---|
| 686 | static mrb_value
|
---|
| 687 | mrb_digest_init_copy(mrb_state *mrb, mrb_value copy)
|
---|
| 688 | {
|
---|
| 689 | struct mrb_md *m1, *m2;
|
---|
| 690 | mrb_value src;
|
---|
| 691 |
|
---|
| 692 | mrb_get_args(mrb, "o", &src);
|
---|
| 693 | if (mrb_obj_equal(mrb, copy, src)) return copy;
|
---|
| 694 | if (!mrb_obj_is_instance_of(mrb, src, mrb_obj_class(mrb, copy))) {
|
---|
| 695 | mrb_raise(mrb, E_TYPE_ERROR, "wrong argument class");
|
---|
| 696 | }
|
---|
| 697 | if (!DATA_PTR(copy)) {
|
---|
| 698 | DATA_PTR(copy) = mrb_malloc(mrb, sizeof(struct mrb_md));
|
---|
| 699 | DATA_TYPE(copy) = &mrb_md_type;
|
---|
| 700 | }
|
---|
| 701 | m1 = DATA_PTR(src);
|
---|
| 702 | m2 = DATA_PTR(copy);
|
---|
| 703 | lib_md_init_copy(mrb, m2, m1);
|
---|
| 704 | return copy;
|
---|
| 705 | }
|
---|
| 706 |
|
---|
| 707 | static mrb_value
|
---|
| 708 | mrb_digest_reset(mrb_state *mrb, mrb_value self)
|
---|
| 709 | {
|
---|
| 710 | struct mrb_md *md;
|
---|
| 711 |
|
---|
| 712 | md = (struct mrb_md *)DATA_PTR(self);
|
---|
| 713 | if (!md) return mrb_nil_value();
|
---|
| 714 | lib_md_reset(mrb, md);
|
---|
| 715 | return self;
|
---|
| 716 | }
|
---|
| 717 |
|
---|
| 718 | static mrb_value
|
---|
| 719 | mrb_digest_update(mrb_state *mrb, mrb_value self)
|
---|
| 720 | {
|
---|
| 721 | struct mrb_md *md;
|
---|
| 722 | mrb_int len;
|
---|
| 723 | char *str;
|
---|
| 724 |
|
---|
| 725 | md = (struct mrb_md *)DATA_PTR(self);
|
---|
| 726 | if (!md) return mrb_nil_value();
|
---|
| 727 | mrb_get_args(mrb, "s", &str, &len);
|
---|
| 728 | lib_md_update(mrb, md, (unsigned char *)str, len);
|
---|
| 729 | return self;
|
---|
| 730 | }
|
---|
| 731 |
|
---|
| 732 | static mrb_value
|
---|
| 733 | mrb_hmac_block_length(mrb_state *mrb, mrb_value self)
|
---|
| 734 | {
|
---|
| 735 | struct mrb_hmac *hmac;
|
---|
| 736 |
|
---|
| 737 | hmac = (struct mrb_hmac *)DATA_PTR(self);
|
---|
| 738 | if (!hmac) return mrb_nil_value();
|
---|
| 739 | return mrb_fixnum_value(lib_hmac_block_length(hmac));
|
---|
| 740 | }
|
---|
| 741 |
|
---|
| 742 | static mrb_value
|
---|
| 743 | mrb_hmac_digest(mrb_state *mrb, mrb_value self)
|
---|
| 744 | {
|
---|
| 745 | struct mrb_hmac *hmac;
|
---|
| 746 |
|
---|
| 747 | hmac = (struct mrb_hmac *)DATA_PTR(self);
|
---|
| 748 | if (!hmac) return mrb_nil_value();
|
---|
| 749 | return lib_hmac_digest(mrb, hmac);
|
---|
| 750 | }
|
---|
| 751 |
|
---|
| 752 | static mrb_value
|
---|
| 753 | mrb_hmac_digest_length(mrb_state *mrb, mrb_value self)
|
---|
| 754 | {
|
---|
| 755 | struct mrb_hmac *hmac;
|
---|
| 756 |
|
---|
| 757 | hmac = (struct mrb_hmac *)DATA_PTR(self);
|
---|
| 758 | if (!hmac) return mrb_nil_value();
|
---|
| 759 | return mrb_fixnum_value(lib_hmac_digest_length(hmac));
|
---|
| 760 | }
|
---|
| 761 |
|
---|
| 762 | static mrb_value
|
---|
| 763 | mrb_hmac_hexdigest(mrb_state *mrb, mrb_value self)
|
---|
| 764 | {
|
---|
| 765 | return digest2hexdigest(mrb, mrb_hmac_digest(mrb, self));
|
---|
| 766 | }
|
---|
| 767 |
|
---|
| 768 | static mrb_value
|
---|
| 769 | mrb_hmac_init(mrb_state *mrb, mrb_value self)
|
---|
| 770 | {
|
---|
| 771 | struct mrb_hmac *hmac;
|
---|
| 772 | mrb_value digest, t;
|
---|
| 773 | mrb_int keylen;
|
---|
| 774 | char *key;
|
---|
| 775 |
|
---|
| 776 | hmac = (struct mrb_hmac *)DATA_PTR(self);
|
---|
| 777 | if (hmac) {
|
---|
| 778 | lib_hmac_free(mrb, hmac);
|
---|
| 779 | }
|
---|
| 780 | DATA_TYPE(self) = &mrb_hmac_type;
|
---|
| 781 | DATA_PTR(self) = NULL;
|
---|
| 782 |
|
---|
| 783 | mrb_get_args(mrb, "so", &key, &keylen, &digest);
|
---|
| 784 | t = mrb_const_get(mrb, digest, mrb_intern_lit(mrb, TYPESYM));
|
---|
| 785 | if (mrb_nil_p(t)) {
|
---|
| 786 | mrb_raise(mrb, E_RUNTIME_ERROR, "not a digester");
|
---|
| 787 | }
|
---|
| 788 |
|
---|
| 789 | hmac = (struct mrb_hmac *)mrb_malloc(mrb, sizeof(*hmac));
|
---|
| 790 | DATA_PTR(self) = hmac;
|
---|
| 791 | lib_hmac_init(mrb, hmac, mrb_fixnum(t), (unsigned char *)key, keylen);
|
---|
| 792 | return self;
|
---|
| 793 | }
|
---|
| 794 |
|
---|
| 795 | static mrb_value
|
---|
| 796 | mrb_hmac_init_copy(mrb_state *mrb, mrb_value copy)
|
---|
| 797 | {
|
---|
| 798 | mrb_raise(mrb, E_RUNTIME_ERROR, "cannot duplicate HMAC");
|
---|
| 799 | return copy;
|
---|
| 800 | }
|
---|
| 801 |
|
---|
| 802 | static mrb_value
|
---|
| 803 | mrb_hmac_update(mrb_state *mrb, mrb_value self)
|
---|
| 804 | {
|
---|
| 805 | struct mrb_hmac *hmac;
|
---|
| 806 | mrb_int len;
|
---|
| 807 | char *str;
|
---|
| 808 |
|
---|
| 809 | hmac = (struct mrb_hmac *)DATA_PTR(self);
|
---|
| 810 | if (!hmac) return mrb_nil_value();
|
---|
| 811 | mrb_get_args(mrb, "s", &str, &len);
|
---|
| 812 | lib_hmac_update(mrb, hmac, (unsigned char *)str, len);
|
---|
| 813 | return self;
|
---|
| 814 | }
|
---|
| 815 |
|
---|
| 816 |
|
---|
| 817 | void
|
---|
| 818 | mrb_mruby_digest_gem_init(mrb_state *mrb)
|
---|
| 819 | {
|
---|
| 820 | struct RClass *b, *d, *h;
|
---|
| 821 |
|
---|
| 822 | lib_init();
|
---|
| 823 |
|
---|
| 824 | d = mrb_define_module(mrb, "Digest");
|
---|
| 825 |
|
---|
| 826 | b = mrb_define_class_under(mrb, d, "Base", mrb->object_class);
|
---|
| 827 | mrb_define_method(mrb, b, "block_length", mrb_digest_block_length, MRB_ARGS_NONE());
|
---|
| 828 | mrb_define_method(mrb, b, "digest", mrb_digest_digest, MRB_ARGS_NONE());
|
---|
| 829 | mrb_define_method(mrb, b, "digest!", mrb_digest_digest_bang, MRB_ARGS_NONE()); /* XXX: can be defined in mrblib... */
|
---|
| 830 | mrb_define_method(mrb, b, "digest_length", mrb_digest_digest_length, MRB_ARGS_NONE());
|
---|
| 831 | //mrb_define_method(mrb, b, "file", mrb_digest_file, MRB_ARGS_REQ(1));
|
---|
| 832 | mrb_define_method(mrb, b, "hexdigest", mrb_digest_hexdigest, MRB_ARGS_NONE());
|
---|
| 833 | //mrb_define_method(mrb, b, "hexdigest!", mrb_digest_hexdigest_bang, MRB_ARGS_NONE()); /* XXX: can be defined in mrblib... */
|
---|
| 834 | mrb_define_method(mrb, b, "initialize", mrb_digest_init, MRB_ARGS_NONE());
|
---|
| 835 | mrb_define_method(mrb, b, "initialize_copy", mrb_digest_init_copy, MRB_ARGS_REQ(1));
|
---|
| 836 | mrb_define_method(mrb, b, "reset", mrb_digest_reset, MRB_ARGS_NONE());
|
---|
| 837 | mrb_define_method(mrb, b, "update", mrb_digest_update, MRB_ARGS_REQ(1));
|
---|
| 838 |
|
---|
| 839 | #define DEFCLASS(n) \
|
---|
| 840 | do { \
|
---|
| 841 | struct RClass *a = mrb_define_class_under(mrb, d, #n, b); \
|
---|
| 842 | MRB_SET_INSTANCE_TT(a, MRB_TT_DATA); \
|
---|
| 843 | mrb_define_const(mrb, a, TYPESYM, mrb_fixnum_value(MD_TYPE_##n)); \
|
---|
| 844 | } while (0)
|
---|
| 845 |
|
---|
| 846 | #ifdef HAVE_MD5
|
---|
| 847 | DEFCLASS(MD5);
|
---|
| 848 | #endif
|
---|
| 849 | #ifdef HAVE_RMD160
|
---|
| 850 | DEFCLASS(RMD160);
|
---|
| 851 | #endif
|
---|
| 852 | #ifdef HAVE_SHA1
|
---|
| 853 | DEFCLASS(SHA1);
|
---|
| 854 | #endif
|
---|
| 855 | #ifdef HAVE_SHA256
|
---|
| 856 | DEFCLASS(SHA256);
|
---|
| 857 | #endif
|
---|
| 858 | #ifdef HAVE_SHA384
|
---|
| 859 | DEFCLASS(SHA384);
|
---|
| 860 | #endif
|
---|
| 861 | #ifdef HAVE_SHA512
|
---|
| 862 | DEFCLASS(SHA512);
|
---|
| 863 | #endif
|
---|
| 864 |
|
---|
| 865 | h = mrb_define_class_under(mrb, d, "HMAC", mrb->object_class);
|
---|
| 866 | MRB_SET_INSTANCE_TT(h, MRB_TT_DATA);
|
---|
| 867 | mrb_define_method(mrb, h, "block_length", mrb_hmac_block_length, MRB_ARGS_NONE());
|
---|
| 868 | mrb_define_method(mrb, h, "digest", mrb_hmac_digest, MRB_ARGS_NONE());
|
---|
| 869 | mrb_define_method(mrb, h, "digest_length", mrb_hmac_digest_length, MRB_ARGS_NONE());
|
---|
| 870 | mrb_define_method(mrb, h, "hexdigest", mrb_hmac_hexdigest, MRB_ARGS_NONE());
|
---|
| 871 | mrb_define_method(mrb, h, "initialize", mrb_hmac_init, MRB_ARGS_REQ(2));
|
---|
| 872 | mrb_define_method(mrb, h, "initialize_copy", mrb_hmac_init_copy, MRB_ARGS_REQ(1));
|
---|
| 873 | mrb_define_method(mrb, h, "update", mrb_hmac_update, MRB_ARGS_REQ(1));
|
---|
| 874 | }
|
---|
| 875 |
|
---|
| 876 | void
|
---|
| 877 | mrb_mruby_digest_gem_final(mrb_state *mrb)
|
---|
| 878 | {
|
---|
| 879 | }
|
---|