27 #ifndef POLARSSL_GCM_H
28 #define POLARSSL_GCM_H
32 #if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
34 typedef UINT32 uint32_t;
35 typedef UINT64 uint64_t;
43 #define POLARSSL_ERR_GCM_AUTH_FAILED -0x0012
44 #define POLARSSL_ERR_GCM_BAD_INPUT -0x0014
59 unsigned char base_ectr[16];
61 unsigned char buf[16];
77 unsigned int keysize );
104 const unsigned char *iv,
106 const unsigned char *add,
108 const unsigned char *input,
109 unsigned char *output,
111 unsigned char *tag );
136 const unsigned char *iv,
138 const unsigned char *add,
140 const unsigned char *tag,
142 const unsigned char *input,
143 unsigned char *output );
159 const unsigned char *iv,
161 const unsigned char *add,
183 const unsigned char *input,
184 unsigned char *output );
int gcm_auth_decrypt(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)
GCM buffer authenticated decryption using a block cipher.
int gcm_self_test(int verbose)
Checkup routine.
int gcm_crypt_and_tag(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)
GCM buffer encryption/decryption using a block cipher.
int gcm_init(gcm_context *ctx, cipher_id_t cipher, const unsigned char *key, unsigned int keysize)
GCM initialization (encryption)
int gcm_update(gcm_context *ctx, size_t length, const unsigned char *input, unsigned char *output)
Generic GCM update function.
void gcm_free(gcm_context *ctx)
Free a GCM context and underlying cipher sub-context.
int gcm_starts(gcm_context *ctx, int mode, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len)
Generic GCM stream start function.
int gcm_finish(gcm_context *ctx, unsigned char *tag, size_t tag_len)
Generic GCM finalisation function.
cipher_context_t cipher_ctx