from ![]()
gcm.h:275
int mbedtls_gcm_update( mbedtls_gcm_context *ctx,
size_t length,
const unsigned char *input,
unsigned char *output );
Implemented in ![]()
gcm.c:363
Symbols ![]()
loading...
Files ![]()
loading...
mbedtls_gcm_update() function
This function feeds an input buffer into an ongoing GCM encryption or decryption operation. ` The function expects input to be a multiple of 16 Bytes. Only the last call before calling mbedtls_gcm_finish() can be less than 16 Bytes.
Syntax
Arguments
ctx
The GCM context. This must be initialized.
length
The length of the input data. This must be a multiple of 16 except in the last call before mbedtls_gcm_finish().
input
The buffer holding the input data. If \p length is greater than zero, this must be a readable buffer of at least that size in Bytes.
output
The buffer for holding the output data. If \p length is greater than zero, this must be a writable buffer of at least that size in Bytes.
Return value
\c 0 on success. #MBEDTLS_ERR_GCM_BAD_INPUT on failure.
Notes
For decryption, the output buffer cannot be the same as input buffer. If the buffers overlap, the output buffer must trail at least 8 Bytes behind the input buffer.
References
Call Tree
Functions calling mbedtls_gcm_update()
Functions called by mbedtls_gcm_update()
Data read by mbedtls_gcm_update()
Data written by mbedtls_gcm_update()
all items filtered out
all items filtered out
Type of mbedtls_gcm_update()
all items filtered out