61#if !defined(MBEDTLS_CONFIG_FILE)
64#include MBEDTLS_CONFIG_FILE
71#define MBEDTLS_GCM_ENCRYPT 1
72#define MBEDTLS_GCM_DECRYPT 0
74#define MBEDTLS_ERR_GCM_AUTH_FAILED -0x0012
77#define MBEDTLS_ERR_GCM_HW_ACCEL_FAILED -0x0013
79#define MBEDTLS_ERR_GCM_BAD_INPUT -0x0014
85#if !defined(MBEDTLS_GCM_ALT)
99 unsigned char buf[16];
141 const unsigned char *
key,
142 unsigned int keybits );
198 const unsigned char *iv,
200 const unsigned char *add,
202 const unsigned char *
input,
203 unsigned char *output,
205 unsigned char *
tag );
242 const unsigned char *iv,
244 const unsigned char *add,
246 const unsigned char *
tag,
248 const unsigned char *
input,
249 unsigned char *output );
270 const unsigned char *iv,
272 const unsigned char *add,
302 const unsigned char *
input,
303 unsigned char *output );
334#if defined(MBEDTLS_SELF_TEST)
342int mbedtls_gcm_self_test(
int verbose );
This file contains an abstraction interface for use with the cipher primitives provided by the librar...
mbedtls_cipher_id_t
Supported cipher types.
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.
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.
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_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.
void mbedtls_gcm_init(mbedtls_gcm_context *ctx)
This function initializes the specified GCM context, to make references valid, and prepares the conte...
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.
void mbedtls_gcm_free(mbedtls_gcm_context *ctx)
This function clears a GCM context and the underlying cipher sub-context.
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.
GLint GLint GLint GLint GLint GLint y
GLenum GLuint GLenum GLsizei const GLchar * buf
GLuint GLsizei GLsizei * length
GLenum GLenum GLenum input
The GCM context structure.
unsigned char base_ectr[16]
mbedtls_cipher_context_t cipher_ctx