PostgreSQL Source Code  git master
Data Structures | Macros | Typedefs | Enumerations | Functions
cryptohash.c File Reference
#include "postgres.h"
#include <sys/param.h>
#include "common/cryptohash.h"
#include "md5_int.h"
#include "sha1_int.h"
#include "sha2_int.h"
Include dependency graph for cryptohash.c:

Go to the source code of this file.

Data Structures

struct  pg_cryptohash_ctx
 

Macros

#define ALLOC(size)   palloc(size)
 
#define FREE(ptr)   pfree(ptr)
 

Typedefs

typedef enum pg_cryptohash_errno pg_cryptohash_errno
 

Enumerations

enum  pg_cryptohash_errno {
  PG_CRYPTOHASH_ERROR_NONE = 0 , PG_CRYPTOHASH_ERROR_DEST_LEN , PG_CRYPTOHASH_ERROR_NONE = 0 , PG_CRYPTOHASH_ERROR_DEST_LEN ,
  PG_CRYPTOHASH_ERROR_OPENSSL
}
 

Functions

pg_cryptohash_ctx * pg_cryptohash_create (pg_cryptohash_type type)
 
int pg_cryptohash_init (pg_cryptohash_ctx *ctx)
 
int pg_cryptohash_update (pg_cryptohash_ctx *ctx, const uint8 *data, size_t len)
 
int pg_cryptohash_final (pg_cryptohash_ctx *ctx, uint8 *dest, size_t len)
 
void pg_cryptohash_free (pg_cryptohash_ctx *ctx)
 
const char * pg_cryptohash_error (pg_cryptohash_ctx *ctx)
 

Macro Definition Documentation

◆ ALLOC

#define ALLOC (   size)    palloc(size)

Definition at line 36 of file cryptohash.c.

◆ FREE

#define FREE (   ptr)    pfree(ptr)

Definition at line 37 of file cryptohash.c.

Typedef Documentation

◆ pg_cryptohash_errno

typedef enum pg_cryptohash_errno pg_cryptohash_errno

Enumeration Type Documentation

◆ pg_cryptohash_errno

enum pg_cryptohash_errno
Enumerator
PG_CRYPTOHASH_ERROR_NONE 
PG_CRYPTOHASH_ERROR_DEST_LEN 
PG_CRYPTOHASH_ERROR_NONE 
PG_CRYPTOHASH_ERROR_DEST_LEN 
PG_CRYPTOHASH_ERROR_OPENSSL 

Definition at line 44 of file cryptohash.c.

45 {
46  PG_CRYPTOHASH_ERROR_NONE = 0,
47  PG_CRYPTOHASH_ERROR_DEST_LEN
48 } pg_cryptohash_errno;
pg_cryptohash_errno
pg_cryptohash_errno
Definition: cryptohash.c:45
PG_CRYPTOHASH_ERROR_DEST_LEN
@ PG_CRYPTOHASH_ERROR_DEST_LEN
Definition: cryptohash.c:47
PG_CRYPTOHASH_ERROR_NONE
@ PG_CRYPTOHASH_ERROR_NONE
Definition: cryptohash.c:46

Function Documentation

◆ pg_cryptohash_create()

pg_cryptohash_ctx* pg_cryptohash_create ( pg_cryptohash_type  type)

Definition at line 74 of file cryptohash.c.

75 {
76  pg_cryptohash_ctx *ctx;
77 
78  /*
79  * Note that this always allocates enough space for the largest hash. A
80  * smaller allocation would be enough for md5, sha224 and sha256, but the
81  * small extra amount of memory does not make it worth complicating this
82  * code.
83  */
84  ctx = ALLOC(sizeof(pg_cryptohash_ctx));
85  if (ctx == NULL)
86  return NULL;
87 
88  memset(ctx, 0, sizeof(pg_cryptohash_ctx));
89  ctx->type = type;
90  ctx->error = PG_CRYPTOHASH_ERROR_NONE;
91  return ctx;
92 }
ALLOC
#define ALLOC(size)
Definition: cryptohash.c:36
generate_unaccent_rules.type
type
Definition: generate_unaccent_rules.py:276
pg_cryptohash_ctx
Definition: cryptohash.c:52
pg_cryptohash_ctx::error
pg_cryptohash_errno error
Definition: cryptohash.c:54
pg_cryptohash_ctx::type
pg_cryptohash_type type
Definition: cryptohash.c:53

References ALLOC, pg_cryptohash_ctx::error, PG_CRYPTOHASH_ERROR_NONE, generate_unaccent_rules::type, and pg_cryptohash_ctx::type.

Referenced by cryptohash_internal(), InitializeBackupManifest(), pg_checksum_init(), pg_hmac_create(), pg_hmac_init(), pg_md5_binary(), pg_md5_hash(), scram_H(), scram_mock_salt(), uuid_generate_internal(), and verify_manifest_checksum().

◆ pg_cryptohash_error()

const char* pg_cryptohash_error ( pg_cryptohash_ctx *  ctx)

Definition at line 259 of file cryptohash.c.

260 {
261  /*
262  * This implementation would never fail because of an out-of-memory error,
263  * except when creating the context.
264  */
265  if (ctx == NULL)
266  return _("out of memory");
267 
268  switch (ctx->error)
269  {
270  case PG_CRYPTOHASH_ERROR_NONE:
271  return _("success");
272  case PG_CRYPTOHASH_ERROR_DEST_LEN:
273  return _("destination buffer too small");
274  }
275 
276  Assert(false);
277  return _("success");
278 }
_
#define _(x)
Definition: elog.c:91
Assert
Assert(fmt[strlen(fmt) - 1] !='\n')

References _, Assert(), pg_cryptohash_ctx::error, PG_CRYPTOHASH_ERROR_DEST_LEN, and PG_CRYPTOHASH_ERROR_NONE.

Referenced by AppendStringToManifest(), cryptohash_internal(), InitializeBackupManifest(), pg_hmac_final(), pg_hmac_init(), pg_hmac_update(), pg_md5_binary(), pg_md5_hash(), scram_H(), SendBackupManifest(), and uuid_generate_internal().

◆ pg_cryptohash_final()

int pg_cryptohash_final ( pg_cryptohash_ctx *  ctx,
uint8 *  dest,
size_t  len 
)

Definition at line 177 of file cryptohash.c.

178 {
179  if (ctx == NULL)
180  return -1;
181 
182  switch (ctx->type)
183  {
184  case PG_MD5:
185  if (len < MD5_DIGEST_LENGTH)
186  {
187  ctx->error = PG_CRYPTOHASH_ERROR_DEST_LEN;
188  return -1;
189  }
190  pg_md5_final(&ctx->data.md5, dest);
191  break;
192  case PG_SHA1:
193  if (len < SHA1_DIGEST_LENGTH)
194  {
195  ctx->error = PG_CRYPTOHASH_ERROR_DEST_LEN;
196  return -1;
197  }
198  pg_sha1_final(&ctx->data.sha1, dest);
199  break;
200  case PG_SHA224:
201  if (len < PG_SHA224_DIGEST_LENGTH)
202  {
203  ctx->error = PG_CRYPTOHASH_ERROR_DEST_LEN;
204  return -1;
205  }
206  pg_sha224_final(&ctx->data.sha224, dest);
207  break;
208  case PG_SHA256:
209  if (len < PG_SHA256_DIGEST_LENGTH)
210  {
211  ctx->error = PG_CRYPTOHASH_ERROR_DEST_LEN;
212  return -1;
213  }
214  pg_sha256_final(&ctx->data.sha256, dest);
215  break;
216  case PG_SHA384:
217  if (len < PG_SHA384_DIGEST_LENGTH)
218  {
219  ctx->error = PG_CRYPTOHASH_ERROR_DEST_LEN;
220  return -1;
221  }
222  pg_sha384_final(&ctx->data.sha384, dest);
223  break;
224  case PG_SHA512:
225  if (len < PG_SHA512_DIGEST_LENGTH)
226  {
227  ctx->error = PG_CRYPTOHASH_ERROR_DEST_LEN;
228  return -1;
229  }
230  pg_sha512_final(&ctx->data.sha512, dest);
231  break;
232  }
233 
234  return 0;
235 }
PG_SHA512
@ PG_SHA512
Definition: cryptohash.h:26
PG_SHA224
@ PG_SHA224
Definition: cryptohash.h:23
PG_SHA384
@ PG_SHA384
Definition: cryptohash.h:25
PG_SHA1
@ PG_SHA1
Definition: cryptohash.h:22
PG_SHA256
@ PG_SHA256
Definition: cryptohash.h:24
PG_MD5
@ PG_MD5
Definition: cryptohash.h:21
pg_md5_final
void pg_md5_final(pg_md5_ctx *ctx, uint8 *dest)
Definition: md5.c:435
MD5_DIGEST_LENGTH
#define MD5_DIGEST_LENGTH
Definition: md5.h:20
generate_unaccent_rules.dest
dest
Definition: generate_unaccent_rules.py:276
len
const void size_t len
Definition: pg_crc32c_sse42.c:24
pg_sha1_final
void pg_sha1_final(pg_sha1_ctx *ctx, uint8 *dest)
Definition: sha1.c:365
SHA1_DIGEST_LENGTH
#define SHA1_DIGEST_LENGTH
Definition: sha1.h:17
pg_sha512_final
void pg_sha512_final(pg_sha512_ctx *context, uint8 *digest)
Definition: sha2.c:905
pg_sha256_final
void pg_sha256_final(pg_sha256_ctx *context, uint8 *digest)
Definition: sha2.c:577
pg_sha224_final
void pg_sha224_final(pg_sha224_ctx *context, uint8 *digest)
Definition: sha2.c:994
pg_sha384_final
void pg_sha384_final(pg_sha384_ctx *context, uint8 *digest)
Definition: sha2.c:950
PG_SHA256_DIGEST_LENGTH
#define PG_SHA256_DIGEST_LENGTH
Definition: sha2.h:23
PG_SHA384_DIGEST_LENGTH
#define PG_SHA384_DIGEST_LENGTH
Definition: sha2.h:26
PG_SHA512_DIGEST_LENGTH
#define PG_SHA512_DIGEST_LENGTH
Definition: sha2.h:29
PG_SHA224_DIGEST_LENGTH
#define PG_SHA224_DIGEST_LENGTH
Definition: sha2.h:20
pg_cryptohash_ctx::md5
pg_md5_ctx md5
Definition: cryptohash.c:58
pg_cryptohash_ctx::sha384
pg_sha384_ctx sha384
Definition: cryptohash.c:62
pg_cryptohash_ctx::sha1
pg_sha1_ctx sha1
Definition: cryptohash.c:59
pg_cryptohash_ctx::data
union pg_cryptohash_ctx::@36 data
pg_cryptohash_ctx::sha256
pg_sha256_ctx sha256
Definition: cryptohash.c:61
pg_cryptohash_ctx::sha512
pg_sha512_ctx sha512
Definition: cryptohash.c:63
pg_cryptohash_ctx::sha224
pg_sha224_ctx sha224
Definition: cryptohash.c:60

References pg_cryptohash_ctx::data, generate_unaccent_rules::dest, pg_cryptohash_ctx::error, len, pg_cryptohash_ctx::md5, MD5_DIGEST_LENGTH, PG_CRYPTOHASH_ERROR_DEST_LEN, PG_MD5, pg_md5_final(), PG_SHA1, pg_sha1_final(), PG_SHA224, PG_SHA224_DIGEST_LENGTH, pg_sha224_final(), PG_SHA256, PG_SHA256_DIGEST_LENGTH, pg_sha256_final(), PG_SHA384, PG_SHA384_DIGEST_LENGTH, pg_sha384_final(), PG_SHA512, PG_SHA512_DIGEST_LENGTH, pg_sha512_final(), pg_cryptohash_ctx::sha1, SHA1_DIGEST_LENGTH, pg_cryptohash_ctx::sha224, pg_cryptohash_ctx::sha256, pg_cryptohash_ctx::sha384, pg_cryptohash_ctx::sha512, and pg_cryptohash_ctx::type.

Referenced by cryptohash_internal(), pg_checksum_final(), pg_hmac_final(), pg_hmac_init(), pg_md5_binary(), pg_md5_hash(), scram_H(), scram_mock_salt(), SendBackupManifest(), uuid_generate_internal(), and verify_manifest_checksum().

◆ pg_cryptohash_free()

void pg_cryptohash_free ( pg_cryptohash_ctx *  ctx)

Definition at line 243 of file cryptohash.c.

244 {
245  if (ctx == NULL)
246  return;
247 
248  explicit_bzero(ctx, sizeof(pg_cryptohash_ctx));
249  FREE(ctx);
250 }
FREE
#define FREE(ptr)
Definition: cryptohash.c:37
explicit_bzero
void explicit_bzero(void *buf, size_t len)
Definition: explicit_bzero.c:50

References explicit_bzero(), and FREE.

Referenced by cryptohash_internal(), FreeBackupManifest(), pg_checksum_final(), pg_checksum_init(), pg_hmac_free(), pg_hmac_init(), pg_md5_binary(), pg_md5_hash(), ResourceOwnerReleaseInternal(), scram_H(), scram_mock_salt(), uuid_generate_internal(), and verify_manifest_checksum().

◆ pg_cryptohash_init()

int pg_cryptohash_init ( pg_cryptohash_ctx *  ctx)

Definition at line 101 of file cryptohash.c.

102 {
103  if (ctx == NULL)
104  return -1;
105 
106  switch (ctx->type)
107  {
108  case PG_MD5:
109  pg_md5_init(&ctx->data.md5);
110  break;
111  case PG_SHA1:
112  pg_sha1_init(&ctx->data.sha1);
113  break;
114  case PG_SHA224:
115  pg_sha224_init(&ctx->data.sha224);
116  break;
117  case PG_SHA256:
118  pg_sha256_init(&ctx->data.sha256);
119  break;
120  case PG_SHA384:
121  pg_sha384_init(&ctx->data.sha384);
122  break;
123  case PG_SHA512:
124  pg_sha512_init(&ctx->data.sha512);
125  break;
126  }
127 
128  return 0;
129 }
pg_md5_init
void pg_md5_init(pg_md5_ctx *ctx)
Definition: md5.c:385
pg_sha1_init
void pg_sha1_init(pg_sha1_ctx *ctx)
Definition: sha1.c:316
pg_sha384_init
void pg_sha384_init(pg_sha384_ctx *context)
Definition: sha2.c:934
pg_sha256_init
void pg_sha256_init(pg_sha256_ctx *context)
Definition: sha2.c:279
pg_sha512_init
void pg_sha512_init(pg_sha512_ctx *context)
Definition: sha2.c:605
pg_sha224_init
void pg_sha224_init(pg_sha224_ctx *context)
Definition: sha2.c:978

References pg_cryptohash_ctx::data, pg_cryptohash_ctx::md5, PG_MD5, pg_md5_init(), PG_SHA1, pg_sha1_init(), PG_SHA224, pg_sha224_init(), PG_SHA256, pg_sha256_init(), PG_SHA384, pg_sha384_init(), PG_SHA512, pg_sha512_init(), pg_cryptohash_ctx::sha1, pg_cryptohash_ctx::sha224, pg_cryptohash_ctx::sha256, pg_cryptohash_ctx::sha384, pg_cryptohash_ctx::sha512, and pg_cryptohash_ctx::type.

Referenced by cryptohash_internal(), InitializeBackupManifest(), pg_checksum_init(), pg_hmac_final(), pg_hmac_init(), pg_md5_binary(), pg_md5_hash(), scram_H(), scram_mock_salt(), uuid_generate_internal(), and verify_manifest_checksum().

◆ pg_cryptohash_update()

int pg_cryptohash_update ( pg_cryptohash_ctx *  ctx,
const uint8 *  data,
size_t  len 
)

Definition at line 139 of file cryptohash.c.

140 {
141  if (ctx == NULL)
142  return -1;
143 
144  switch (ctx->type)
145  {
146  case PG_MD5:
147  pg_md5_update(&ctx->data.md5, data, len);
148  break;
149  case PG_SHA1:
150  pg_sha1_update(&ctx->data.sha1, data, len);
151  break;
152  case PG_SHA224:
153  pg_sha224_update(&ctx->data.sha224, data, len);
154  break;
155  case PG_SHA256:
156  pg_sha256_update(&ctx->data.sha256, data, len);
157  break;
158  case PG_SHA384:
159  pg_sha384_update(&ctx->data.sha384, data, len);
160  break;
161  case PG_SHA512:
162  pg_sha512_update(&ctx->data.sha512, data, len);
163  break;
164  }
165 
166  return 0;
167 }
pg_md5_update
void pg_md5_update(pg_md5_ctx *ctx, const uint8 *data, size_t len)
Definition: md5.c:403
data
const void * data
Definition: pg_crc32c_sse42.c:23
pg_sha1_update
void pg_sha1_update(pg_sha1_ctx *ctx, const uint8 *data, size_t len)
Definition: sha1.c:332
pg_sha512_update
void pg_sha512_update(pg_sha512_ctx *context, const uint8 *data, size_t len)
Definition: sha2.c:802
pg_sha224_update
void pg_sha224_update(pg_sha224_ctx *context, const uint8 *data, size_t len)
Definition: sha2.c:988
pg_sha384_update
void pg_sha384_update(pg_sha384_ctx *context, const uint8 *data, size_t len)
Definition: sha2.c:944
pg_sha256_update
void pg_sha256_update(pg_sha256_ctx *context, const uint8 *data, size_t len)
Definition: sha2.c:476

References pg_cryptohash_ctx::data, data, len, pg_cryptohash_ctx::md5, PG_MD5, pg_md5_update(), PG_SHA1, pg_sha1_update(), PG_SHA224, pg_sha224_update(), PG_SHA256, pg_sha256_update(), PG_SHA384, pg_sha384_update(), PG_SHA512, pg_sha512_update(), pg_cryptohash_ctx::sha1, pg_cryptohash_ctx::sha224, pg_cryptohash_ctx::sha256, pg_cryptohash_ctx::sha384, pg_cryptohash_ctx::sha512, and pg_cryptohash_ctx::type.

Referenced by AppendStringToManifest(), cryptohash_internal(), pg_checksum_update(), pg_hmac_final(), pg_hmac_init(), pg_hmac_update(), pg_md5_binary(), pg_md5_hash(), scram_H(), scram_mock_salt(), uuid_generate_internal(), and verify_manifest_checksum().