24 #ifndef POLARSSL_GCM_H
25 #define POLARSSL_GCM_H
29 #if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
31 typedef UINT32 uint32_t;
32 typedef UINT64 uint64_t;
40 #define POLARSSL_ERR_GCM_AUTH_FAILED -0x0012
41 #define POLARSSL_ERR_GCM_BAD_INPUT -0x0014
56 unsigned char base_ectr[16];
58 unsigned char buf[16];
74 unsigned int keysize );
101 const unsigned char *iv,
103 const unsigned char *add,
105 const unsigned char *input,
106 unsigned char *output,
108 unsigned char *tag );
133 const unsigned char *iv,
135 const unsigned char *add,
137 const unsigned char *tag,
139 const unsigned char *input,
140 unsigned char *output );
156 const unsigned char *iv,
158 const unsigned char *add,
180 const unsigned char *input,
181 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