Function esp_idf_sys::mbedtls_rsa_rsaes_oaep_encrypt
source · pub unsafe extern "C" fn mbedtls_rsa_rsaes_oaep_encrypt(
ctx: *mut mbedtls_rsa_context,
f_rng: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: *mut c_uchar, arg3: usize) -> c_int>,
p_rng: *mut c_void,
label: *const c_uchar,
label_len: usize,
ilen: usize,
input: *const c_uchar,
output: *mut c_uchar,
) -> c_int
Expand description
\brief This function performs a PKCS#1 v2.1 OAEP encryption operation (RSAES-OAEP-ENCRYPT).
\note The output buffer must be as large as the size of ctx->N. For example, 128 Bytes if RSA-1024 is used.
\param ctx The initialized RSA context to use.
\param f_rng The RNG function to use. This is needed for padding
generation and is mandatory.
\param p_rng The RNG context to be passed to \p f_rng. This may
be \c NULL if \p f_rng doesn’t need a context argument.
\param label The buffer holding the custom label to use.
This must be a readable buffer of length \p label_len
Bytes. It may be \c NULL if \p label_len is \c 0.
\param label_len The length of the label in Bytes.
\param ilen The length of the plaintext buffer \p input in Bytes.
\param input The input data to encrypt. This must be a readable
buffer of size \p ilen Bytes. It may be \c NULL if
ilen == 0
.
\param output The output buffer. This must be a writable buffer
of length \c ctx->len Bytes. For example, \c 256 Bytes
for an 2048-bit RSA modulus.
\return \c 0 on success. \return An \c MBEDTLS_ERR_RSA_XXX error code on failure.