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gcm.h
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1 
14 /*
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57 
58 #ifndef MBEDTLS_GCM_H
59 #define MBEDTLS_GCM_H
60 
61 #if !defined(MBEDTLS_CONFIG_FILE)
62 #include "config.h"
63 #else
64 #include MBEDTLS_CONFIG_FILE
65 #endif
66 
67 #include "cipher.h"
68 
69 #include <stdint.h>
70 
71 #define MBEDTLS_GCM_ENCRYPT 1
72 #define MBEDTLS_GCM_DECRYPT 0
73 
74 #define MBEDTLS_ERR_GCM_AUTH_FAILED -0x0012
76 /* MBEDTLS_ERR_GCM_HW_ACCEL_FAILED is deprecated and should not be used. */
77 #define MBEDTLS_ERR_GCM_HW_ACCEL_FAILED -0x0013
79 #define MBEDTLS_ERR_GCM_BAD_INPUT -0x0014
81 #ifdef __cplusplus
82 extern "C" {
83 #endif
84 
85 #if !defined(MBEDTLS_GCM_ALT)
86 
90 typedef struct mbedtls_gcm_context
91 {
93  uint64_t HL[16];
94  uint64_t HH[16];
97  unsigned char base_ectr[16];
98  unsigned char y[16];
99  unsigned char buf[16];
100  int mode;
103 }
105 
106 #else /* !MBEDTLS_GCM_ALT */
107 #include "gcm_alt.h"
108 #endif /* !MBEDTLS_GCM_ALT */
109 
122 
141  const unsigned char *key,
142  unsigned int keybits );
143 
196  int mode,
197  size_t length,
198  const unsigned char *iv,
199  size_t iv_len,
200  const unsigned char *add,
201  size_t add_len,
202  const unsigned char *input,
203  unsigned char *output,
204  size_t tag_len,
205  unsigned char *tag );
206 
241  size_t length,
242  const unsigned char *iv,
243  size_t iv_len,
244  const unsigned char *add,
245  size_t add_len,
246  const unsigned char *tag,
247  size_t tag_len,
248  const unsigned char *input,
249  unsigned char *output );
250 
269  int mode,
270  const unsigned char *iv,
271  size_t iv_len,
272  const unsigned char *add,
273  size_t add_len );
274 
301  size_t length,
302  const unsigned char *input,
303  unsigned char *output );
304 
322  unsigned char *tag,
323  size_t tag_len );
324 
333 
334 #if defined(MBEDTLS_SELF_TEST)
335 
342 int mbedtls_gcm_self_test( int verbose );
343 
344 #endif /* MBEDTLS_SELF_TEST */
345 
346 #ifdef __cplusplus
347 }
348 #endif
349 
350 
351 #endif /* gcm.h */
void mbedtls_gcm_init(mbedtls_gcm_context *ctx)
This function initializes the specified GCM context, to make references valid, and prepares the conte...
static UCHAR ULONG UCHAR ULONG UCHAR * output
Definition: bcrypt.c:29
int mbedtls_gcm_starts(mbedtls_gcm_context *ctx, int mode, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len)
This function starts a GCM encryption or decryption operation.
void mbedtls_gcm_free(mbedtls_gcm_context *ctx)
This function clears a GCM context and the underlying cipher sub-context.
Definition: ecma_167.h:138
The GCM context structure.
Definition: gcm.h:90
static DATA_BLOB cipher
Definition: protectdata.c:38
mbedtls_cipher_context_t cipher_ctx
Definition: gcm.h:92
int mbedtls_gcm_update(mbedtls_gcm_context *ctx, size_t length, const unsigned char *input, unsigned char *output)
This function feeds an input buffer into an ongoing GCM encryption or decryption operation.
#define verbose
Definition: rosglue.h:36
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
struct mbedtls_gcm_context mbedtls_gcm_context
The GCM context structure.
GLenum GLuint GLenum GLsizei length
Definition: glext.h:5579
uint64_t HH[16]
Definition: gcm.h:94
uint64_t add_len
Definition: gcm.h:96
mbedtls_cipher_id_t
Supported cipher types.
Definition: cipher.h:109
uint64_t HL[16]
Definition: gcm.h:93
This file contains an abstraction interface for use with the cipher primitives provided by the librar...
uint64_t len
Definition: gcm.h:95
GLenum mode
Definition: glext.h:6217
unsigned char base_ectr[16]
Definition: gcm.h:97
UINT64 uint64_t
Definition: types.h:77
GLenum GLenum GLenum input
Definition: glext.h:9031
GLint GLint GLint GLint GLint GLint y
Definition: gl.h:1548
int mbedtls_gcm_setkey(mbedtls_gcm_context *ctx, mbedtls_cipher_id_t cipher, const unsigned char *key, unsigned int keybits)
This function associates a GCM context with a cipher algorithm and a key.
int mbedtls_gcm_finish(mbedtls_gcm_context *ctx, unsigned char *tag, size_t tag_len)
This function finishes the GCM operation and generates the authentication tag.
int mbedtls_gcm_auth_decrypt(mbedtls_gcm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *tag, size_t tag_len, const unsigned char *input, unsigned char *output)
This function performs a GCM authenticated decryption of a buffer.
Definition: path.c:41
int mbedtls_gcm_crypt_and_tag(mbedtls_gcm_context *ctx, int mode, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, size_t tag_len, unsigned char *tag)
This function performs GCM encryption or decryption of a buffer.