Botan 3.2.0
Crypto and TLS for C&
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#include <botan/ffi.h>
#include <botan/aead.h>
#include <botan/internal/ffi_util.h>
Go to the source code of this file.
Functions | |
int | botan_cipher_clear (botan_cipher_t cipher) |
int | botan_cipher_destroy (botan_cipher_t cipher) |
int | botan_cipher_get_default_nonce_length (botan_cipher_t cipher, size_t *nl) |
int | botan_cipher_get_ideal_update_granularity (botan_cipher_t cipher, size_t *ug) |
int | botan_cipher_get_keyspec (botan_cipher_t cipher, size_t *out_minimum_keylength, size_t *out_maximum_keylength, size_t *out_keylength_modulo) |
int | botan_cipher_get_tag_length (botan_cipher_t cipher, size_t *tl) |
int | botan_cipher_get_update_granularity (botan_cipher_t cipher, size_t *ug) |
int | botan_cipher_init (botan_cipher_t *cipher, const char *cipher_name, uint32_t flags) |
int | botan_cipher_name (botan_cipher_t cipher, char *name, size_t *name_len) |
int | botan_cipher_output_length (botan_cipher_t cipher, size_t in_len, size_t *out_len) |
int | botan_cipher_query_keylen (botan_cipher_t cipher, size_t *out_minimum_keylength, size_t *out_maximum_keylength) |
int | botan_cipher_reset (botan_cipher_t cipher) |
int | botan_cipher_set_associated_data (botan_cipher_t cipher, const uint8_t *ad, size_t ad_len) |
int | botan_cipher_set_key (botan_cipher_t cipher, const uint8_t *key, size_t key_len) |
int | botan_cipher_start (botan_cipher_t cipher_obj, const uint8_t *nonce, size_t nonce_len) |
int | botan_cipher_update (botan_cipher_t cipher_obj, uint32_t flags, uint8_t output_ptr[], size_t orig_output_size, size_t *output_written, const uint8_t input_ptr[], size_t orig_input_size, size_t *input_consumed) |
int | botan_cipher_valid_nonce_length (botan_cipher_t cipher, size_t nl) |
int botan_cipher_clear | ( | botan_cipher_t | hash | ) |
Reset the key, nonce, AD and all other state on this cipher object
Definition at line 84 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_destroy | ( | botan_cipher_t | cipher | ) |
Destroy the cipher object
Definition at line 80 of file ffi_cipher.cpp.
References BOTAN_FFI_CHECKED_DELETE.
int botan_cipher_get_default_nonce_length | ( | botan_cipher_t | cipher, |
size_t * | nl | ||
) |
Get the default nonce length of this cipher
Definition at line 228 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_get_ideal_update_granularity | ( | botan_cipher_t | cipher, |
size_t * | ug | ||
) |
Return the ideal update granularity of the cipher. This is some multiple of the update granularity, reflecting possibilities for optimization.
Definition at line 236 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_get_keyspec | ( | botan_cipher_t | cipher, |
size_t * | min_keylen, | ||
size_t * | max_keylen, | ||
size_t * | mod_keylen | ||
) |
Get information about the supported key lengths.
Definition at line 107 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_get_tag_length | ( | botan_cipher_t | cipher, |
size_t * | tag_size | ||
) |
Get the tag length of the cipher (0 for non-AEAD modes)
Definition at line 240 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_get_update_granularity | ( | botan_cipher_t | cipher, |
size_t * | ug | ||
) |
Return the update granularity of the cipher; botan_cipher_update must be called with blocks of this size, except for the final.
Definition at line 232 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_init | ( | botan_cipher_t * | cipher, |
const char * | name, | ||
uint32_t | flags | ||
) |
Initialize a cipher object
Definition at line 63 of file ffi_cipher.cpp.
References BOTAN_CIPHER_INIT_FLAG_ENCRYPT, BOTAN_CIPHER_INIT_FLAG_MASK_DIRECTION, BOTAN_FFI_ERROR_NOT_IMPLEMENTED, BOTAN_FFI_SUCCESS, Botan::Cipher_Mode::create(), Botan::Decryption, Botan::Encryption, and Botan_FFI::ffi_guard_thunk().
int botan_cipher_name | ( | botan_cipher_t | cipher, |
char * | name, | ||
size_t * | name_len | ||
) |
Return the name of the cipher object
Definition at line 244 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT, name, and Botan_FFI::write_str_output().
int botan_cipher_output_length | ( | botan_cipher_t | cipher, |
size_t | in_len, | ||
size_t * | out_len | ||
) |
Return the output length of this cipher, for a particular input length.
Definition at line 92 of file ffi_cipher.cpp.
References BOTAN_FFI_ERROR_NULL_POINTER, and BOTAN_FFI_VISIT.
int botan_cipher_query_keylen | ( | botan_cipher_t | cipher, |
size_t * | out_minimum_keylength, | ||
size_t * | out_maximum_keylength | ||
) |
Get information about the key lengths. Prefer botan_cipher_get_keyspec
Definition at line 100 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_reset | ( | botan_cipher_t | cipher | ) |
Reset the message specific state for this cipher. Without resetting the keys, this resets the nonce, and any state associated with any message bits that have been processed so far.
It is conceptually equivalent to calling botan_cipher_clear followed by botan_cipher_set_key with the original key.
Definition at line 88 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_set_associated_data | ( | botan_cipher_t | cipher, |
const uint8_t * | ad, | ||
size_t | ad_len | ||
) |
Set the associated data. Will fail if cipher is not an AEAD
Definition at line 214 of file ffi_cipher.cpp.
References BOTAN_FFI_ERROR_BAD_PARAMETER, BOTAN_FFI_SUCCESS, and BOTAN_FFI_VISIT.
int botan_cipher_set_key | ( | botan_cipher_t | cipher, |
const uint8_t * | key, | ||
size_t | key_len | ||
) |
Set the key for this cipher object
Definition at line 121 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.
int botan_cipher_start | ( | botan_cipher_t | cipher, |
const uint8_t * | nonce, | ||
size_t | nonce_len | ||
) |
Begin processing a new message using the provided nonce
Definition at line 125 of file ffi_cipher.cpp.
References BOTAN_FFI_SUCCESS, Botan_FFI::ffi_guard_thunk(), Botan_FFI::safe_get(), and Botan::Cipher_Mode::start().
int botan_cipher_update | ( | botan_cipher_t | cipher, |
uint32_t | flags, | ||
uint8_t | output[], | ||
size_t | output_size, | ||
size_t * | output_written, | ||
const uint8_t | input_bytes[], | ||
size_t | input_size, | ||
size_t * | input_consumed | ||
) |
Encrypt some data
Definition at line 133 of file ffi_cipher.cpp.
References BOTAN_CIPHER_UPDATE_FLAG_FINAL, BOTAN_FFI_ERROR_BAD_MAC, BOTAN_FFI_SUCCESS, Botan_FFI::ffi_guard_thunk(), Botan::Cipher_Mode::finish(), Botan_FFI::safe_get(), and Botan::Cipher_Mode::update().
int botan_cipher_valid_nonce_length | ( | botan_cipher_t | cipher, |
size_t | nl | ||
) |
Return if the specified nonce length is valid for this cipher
Definition at line 224 of file ffi_cipher.cpp.
References BOTAN_FFI_VISIT.