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Rename MBEDTLS_CIPHER_ENCRYPT_ONLY as MBEDTLS_BLOCK_CIPHER_NO_DECRYPT

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Signed-off-by: Yanray Wang <yanray.wang@arm.com>
This commit is contained in:
Yanray Wang
2023-10-31 17:10:32 +08:00
parent 4b6595aa83
commit b67b47425e
21 changed files with 132 additions and 132 deletions
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18
library/aes.c
View File

@ -67,7 +67,7 @@
#include "mbedtls/platform.h"
#if (!defined(MBEDTLS_AES_DECRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT)) && \
!defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
!defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
#define MBEDTLS_AES_NEED_REVERSE_TABLES
#endif
@ -691,7 +691,7 @@ int mbedtls_aes_setkey_enc(mbedtls_aes_context *ctx, const unsigned char *key,
/*
* AES key schedule (decryption)
*/
#if !defined(MBEDTLS_AES_SETKEY_DEC_ALT) && !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_AES_SETKEY_DEC_ALT) && !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
int mbedtls_aes_setkey_dec(mbedtls_aes_context *ctx, const unsigned char *key,
unsigned int keybits)
{
@ -760,7 +760,7 @@ exit:
return ret;
}
#endif /* !MBEDTLS_AES_SETKEY_DEC_ALT && !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_AES_SETKEY_DEC_ALT && !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
#if defined(MBEDTLS_CIPHER_MODE_XTS)
static int mbedtls_aes_xts_decode_keys(const unsigned char *key,
@ -949,7 +949,7 @@ int mbedtls_internal_aes_encrypt(mbedtls_aes_context *ctx,
/*
* AES-ECB block decryption
*/
#if !defined(MBEDTLS_AES_DECRYPT_ALT) && !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_AES_DECRYPT_ALT) && !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
int mbedtls_internal_aes_decrypt(mbedtls_aes_context *ctx,
const unsigned char input[16],
unsigned char output[16])
@ -1006,7 +1006,7 @@ int mbedtls_internal_aes_decrypt(mbedtls_aes_context *ctx,
return 0;
}
#endif /* !MBEDTLS_AES_DECRYPT_ALT && !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_AES_DECRYPT_ALT && !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
/* VIA Padlock and our intrinsics-based implementation of AESNI require
* the round keys to be aligned on a 16-byte boundary. We take care of this
@ -1061,7 +1061,7 @@ int mbedtls_aes_crypt_ecb(mbedtls_aes_context *ctx,
#endif
#if !defined(MBEDTLS_AES_USE_HARDWARE_ONLY)
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (mode == MBEDTLS_AES_ENCRYPT) {
return mbedtls_internal_aes_encrypt(ctx, input, output);
} else {
@ -1496,7 +1496,7 @@ exit:
*
* http://csrc.nist.gov/archive/aes/rijndael/rijndael-vals.zip
*/
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static const unsigned char aes_test_ecb_dec[][16] =
{
{ 0x44, 0x41, 0x6A, 0xC2, 0xD1, 0xF5, 0x3C, 0x58,
@ -1901,7 +1901,7 @@ int mbedtls_aes_self_test(int verbose)
mbedtls_printf(" AES-ECB-%3u (%s): ", keybits,
(mode == MBEDTLS_AES_DECRYPT) ? "dec" : "enc");
}
#if defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (mode == MBEDTLS_AES_DECRYPT) {
if (verbose != 0) {
mbedtls_printf("skipped\n");
@ -1912,7 +1912,7 @@ int mbedtls_aes_self_test(int verbose)
memset(buf, 0, 16);
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (mode == MBEDTLS_AES_DECRYPT) {
ret = mbedtls_aes_setkey_dec(&ctx, key, keybits);
aes_tests = aes_test_ecb_dec[u];

8
library/aesce.c
View File

@ -199,7 +199,7 @@ rounds_10:
/* Two rounds of AESCE decryption */
#define AESCE_DECRYPT_ROUND_X2 AESCE_DECRYPT_ROUND; AESCE_DECRYPT_ROUND
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static uint8x16_t aesce_decrypt_block(uint8x16_t block,
unsigned char *keys,
int rounds)
@ -244,7 +244,7 @@ int mbedtls_aesce_crypt_ecb(mbedtls_aes_context *ctx,
uint8x16_t block = vld1q_u8(&input[0]);
unsigned char *keys = (unsigned char *) (ctx->buf + ctx->rk_offset);
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (mode == MBEDTLS_AES_ENCRYPT) {
block = aesce_encrypt_block(block, keys, ctx->nr);
} else {
@ -253,7 +253,7 @@ int mbedtls_aesce_crypt_ecb(mbedtls_aes_context *ctx,
#else
(void) mode;
block = aesce_encrypt_block(block, keys, ctx->nr);
#endif /* !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
vst1q_u8(&output[0], block);
return 0;
@ -262,7 +262,7 @@ int mbedtls_aesce_crypt_ecb(mbedtls_aes_context *ctx,
/*
* Compute decryption round keys from encryption round keys
*/
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
void mbedtls_aesce_inverse_key(unsigned char *invkey,
const unsigned char *fwdkey,
int nr)

4
library/aesce.h
View File

@ -99,7 +99,7 @@ void mbedtls_aesce_gcm_mult(unsigned char c[16],
const unsigned char b[16]);
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
/**
* \brief Internal round key inversion. This function computes
* decryption round keys from the encryption round keys.
@ -111,7 +111,7 @@ void mbedtls_aesce_gcm_mult(unsigned char c[16],
void mbedtls_aesce_inverse_key(unsigned char *invkey,
const unsigned char *fwdkey,
int nr);
#endif /* !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
/**
* \brief Internal key expansion for encryption

10
library/aesni.c
View File

@ -93,7 +93,7 @@ int mbedtls_aesni_crypt_ecb(mbedtls_aes_context *ctx,
++rk;
--nr;
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (mode == MBEDTLS_AES_ENCRYPT) {
while (nr != 0) {
state = _mm_aesenc_si128(state, *rk);
@ -118,7 +118,7 @@ int mbedtls_aesni_crypt_ecb(mbedtls_aes_context *ctx,
--nr;
}
state = _mm_aesenclast_si128(state, *rk);
#endif /* !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
memcpy(output, &state, 16);
return 0;
@ -228,7 +228,7 @@ void mbedtls_aesni_gcm_mult(unsigned char c[16],
/*
* Compute decryption round keys from encryption round keys
*/
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
void mbedtls_aesni_inverse_key(unsigned char *invkey,
const unsigned char *fwdkey, int nr)
{
@ -468,7 +468,7 @@ int mbedtls_aesni_crypt_ecb(mbedtls_aes_context *ctx,
"jnz 1b \n\t"
"movdqu (%1), %%xmm1 \n\t" // load round key
AESENCLAST(xmm1_xmm0) // last round
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
"jmp 3f \n\t"
"2: \n\t" // decryption loop
@ -606,7 +606,7 @@ void mbedtls_aesni_gcm_mult(unsigned char c[16],
/*
* Compute decryption round keys from encryption round keys
*/
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
void mbedtls_aesni_inverse_key(unsigned char *invkey,
const unsigned char *fwdkey, int nr)
{

4
library/aesni.h
View File

@ -129,7 +129,7 @@ void mbedtls_aesni_gcm_mult(unsigned char c[16],
const unsigned char a[16],
const unsigned char b[16]);
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
/**
* \brief Internal round key inversion. This function computes
* decryption round keys from the encryption round keys.
@ -144,7 +144,7 @@ void mbedtls_aesni_gcm_mult(unsigned char c[16],
void mbedtls_aesni_inverse_key(unsigned char *invkey,
const unsigned char *fwdkey,
int nr);
#endif /* !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
/**
* \brief Internal key expansion for encryption

8
library/aria.c
View File

@ -425,7 +425,7 @@ int mbedtls_aria_setkey_enc(mbedtls_aria_context *ctx,
/*
* Set decryption key
*/
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
int mbedtls_aria_setkey_dec(mbedtls_aria_context *ctx,
const unsigned char *key, unsigned int keybits)
{
@ -455,7 +455,7 @@ int mbedtls_aria_setkey_dec(mbedtls_aria_context *ctx,
return 0;
}
#endif /* !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
/*
* Encrypt a block
@ -886,12 +886,12 @@ int mbedtls_aria_self_test(int verbose)
/* test ECB decryption */
if (verbose) {
mbedtls_printf(" ARIA-ECB-%d (dec): ", 128 + 64 * i);
#if defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
mbedtls_printf("skipped\n");
#endif
}
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
mbedtls_aria_setkey_dec(&ctx, aria_test1_ecb_key, 128 + 64 * i);
mbedtls_aria_crypt_ecb(&ctx, aria_test1_ecb_ct[i], blk);
ARIA_SELF_TEST_ASSERT(

8
library/camellia.c
View File

@ -411,7 +411,7 @@ int mbedtls_camellia_setkey_enc(mbedtls_camellia_context *ctx,
/*
* Camellia key schedule (decryption)
*/
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
int mbedtls_camellia_setkey_dec(mbedtls_camellia_context *ctx,
const unsigned char *key,
unsigned int keybits)
@ -457,7 +457,7 @@ exit:
return ret;
}
#endif /* !MBEDTLS_CIPHER_ENCRYPT_ONLY */
#endif /* !MBEDTLS_BLOCK_CIPHER_NO_DECRYPT */
/*
* Camellia-ECB block encryption/decryption
@ -902,7 +902,7 @@ int mbedtls_camellia_self_test(int verbose)
(v == MBEDTLS_CAMELLIA_DECRYPT) ? "dec" : "enc");
}
#if defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (v == MBEDTLS_CAMELLIA_DECRYPT) {
if (verbose != 0) {
mbedtls_printf("skipped\n");
@ -914,7 +914,7 @@ int mbedtls_camellia_self_test(int verbose)
for (i = 0; i < CAMELLIA_TESTS_ECB; i++) {
memcpy(key, camellia_test_ecb_key[u][i], 16 + 8 * u);
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
if (v == MBEDTLS_CAMELLIA_DECRYPT) {
mbedtls_camellia_setkey_dec(&ctx, key, 128 + u * 64);
memcpy(src, camellia_test_ecb_cipher[u][i], 16);

2
library/cipher.c
View File

@ -386,7 +386,7 @@ int mbedtls_cipher_setkey(mbedtls_cipher_context_t *ctx,
ctx->key_bitlen = key_bitlen;
ctx->operation = operation;
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
/*
* For OFB, CFB and CTR mode always use the encryption key schedule
*/

42
library/cipher_wrap.c
View File

@ -238,7 +238,7 @@ static int aes_crypt_xts_wrap(void *ctx, mbedtls_operation_t operation,
}
#endif /* MBEDTLS_CIPHER_MODE_XTS */
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static int aes_setkey_dec_wrap(void *ctx, const unsigned char *key,
unsigned int key_bitlen)
{
@ -293,7 +293,7 @@ static const mbedtls_cipher_base_t aes_info = {
NULL,
#endif
aes_setkey_enc_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
aes_setkey_dec_wrap,
#endif
aes_ctx_alloc,
@ -603,7 +603,7 @@ static const mbedtls_cipher_base_t gcm_aes_info = {
NULL,
#endif
gcm_aes_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
gcm_aes_setkey_wrap,
#endif
gcm_ctx_alloc,
@ -676,7 +676,7 @@ static const mbedtls_cipher_base_t ccm_aes_info = {
NULL,
#endif
ccm_aes_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
ccm_aes_setkey_wrap,
#endif
ccm_ctx_alloc,
@ -795,7 +795,7 @@ static int camellia_crypt_ctr_wrap(void *ctx, size_t length, size_t *nc_off,
}
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static int camellia_setkey_dec_wrap(void *ctx, const unsigned char *key,
unsigned int key_bitlen)
{
@ -851,7 +851,7 @@ static const mbedtls_cipher_base_t camellia_info = {
NULL,
#endif
camellia_setkey_enc_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
camellia_setkey_dec_wrap,
#endif
camellia_ctx_alloc,
@ -1026,7 +1026,7 @@ static const mbedtls_cipher_base_t gcm_camellia_info = {
NULL,
#endif
gcm_camellia_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
gcm_camellia_setkey_wrap,
#endif
gcm_ctx_alloc,
@ -1097,7 +1097,7 @@ static const mbedtls_cipher_base_t ccm_camellia_info = {
NULL,
#endif
ccm_camellia_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
ccm_camellia_setkey_wrap,
#endif
ccm_ctx_alloc,
@ -1213,7 +1213,7 @@ static int aria_crypt_ctr_wrap(void *ctx, size_t length, size_t *nc_off,
}
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static int aria_setkey_dec_wrap(void *ctx, const unsigned char *key,
unsigned int key_bitlen)
{
@ -1269,7 +1269,7 @@ static const mbedtls_cipher_base_t aria_info = {
NULL,
#endif
aria_setkey_enc_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
aria_setkey_dec_wrap,
#endif
aria_ctx_alloc,
@ -1444,7 +1444,7 @@ static const mbedtls_cipher_base_t gcm_aria_info = {
NULL,
#endif
gcm_aria_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
gcm_aria_setkey_wrap,
#endif
gcm_ctx_alloc,
@ -1515,7 +1515,7 @@ static const mbedtls_cipher_base_t ccm_aria_info = {
NULL,
#endif
ccm_aria_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
ccm_aria_setkey_wrap,
#endif
ccm_ctx_alloc,
@ -1625,7 +1625,7 @@ static int des3_crypt_cbc_wrap(void *ctx, mbedtls_operation_t operation, size_t
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static int des_setkey_dec_wrap(void *ctx, const unsigned char *key,
unsigned int key_bitlen)
{
@ -1643,7 +1643,7 @@ static int des_setkey_enc_wrap(void *ctx, const unsigned char *key,
return mbedtls_des_setkey_enc((mbedtls_des_context *) ctx, key);
}
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static int des3_set2key_dec_wrap(void *ctx, const unsigned char *key,
unsigned int key_bitlen)
{
@ -1661,7 +1661,7 @@ static int des3_set2key_enc_wrap(void *ctx, const unsigned char *key,
return mbedtls_des3_set2key_enc((mbedtls_des3_context *) ctx, key);
}
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
static int des3_set3key_dec_wrap(void *ctx, const unsigned char *key,
unsigned int key_bitlen)
{
@ -1740,7 +1740,7 @@ static const mbedtls_cipher_base_t des_info = {
NULL,
#endif
des_setkey_enc_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
des_setkey_dec_wrap,
#endif
des_ctx_alloc,
@ -1793,7 +1793,7 @@ static const mbedtls_cipher_base_t des_ede_info = {
NULL,
#endif
des3_set2key_enc_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
des3_set2key_dec_wrap,
#endif
des3_ctx_alloc,
@ -1846,7 +1846,7 @@ static const mbedtls_cipher_base_t des_ede3_info = {
NULL,
#endif
des3_set3key_enc_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
des3_set3key_dec_wrap,
#endif
des3_ctx_alloc,
@ -1949,7 +1949,7 @@ static const mbedtls_cipher_base_t chacha20_base_info = {
chacha20_stream_wrap,
#endif
chacha20_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
chacha20_setkey_wrap,
#endif
chacha20_ctx_alloc,
@ -2026,7 +2026,7 @@ static const mbedtls_cipher_base_t chachapoly_base_info = {
NULL,
#endif
chachapoly_setkey_wrap,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
chachapoly_setkey_wrap,
#endif
chachapoly_ctx_alloc,
@ -2096,7 +2096,7 @@ static const mbedtls_cipher_base_t null_base_info = {
null_crypt_stream,
#endif
null_setkey,
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
null_setkey,
#endif
null_ctx_alloc,

2
library/cipher_wrap.h
View File

@ -93,7 +93,7 @@ struct mbedtls_cipher_base_t {
int (*setkey_enc_func)(void *ctx, const unsigned char *key,
unsigned int key_bitlen);
#if !defined(MBEDTLS_CIPHER_ENCRYPT_ONLY)
#if !defined(MBEDTLS_BLOCK_CIPHER_NO_DECRYPT)
/** Set key for decryption purposes */
int (*setkey_dec_func)(void *ctx, const unsigned char *key,
unsigned int key_bitlen);