FM / crypto

/usr/src/linux-headers-5.15.0-190/include/crypto/

/usr/src/linux-headers-5.15.0-190/include/crypto

Name	Size	Mode	Actions
internal/	-	0755	rm
acompress.h	9073	0644	edit dl rm
aead.h	18832	0644	edit dl rm
aes.h	2563	0644	edit dl rm
akcipher.h	13232	0644	edit dl rm
algapi.h	7545	0644	edit dl rm
arc4.h	484	0644	edit dl rm
asym_tpm_subtype.h	521	0644	edit dl rm
authenc.h	635	0644	edit dl rm
b128ops.h	2471	0644	edit dl rm
blake2b.h	1637	0644	edit dl rm
blake2s.h	2680	0644	edit dl rm
blowfish.h	415	0644	edit dl rm
cast5.h	590	0644	edit dl rm
cast6.h	607	0644	edit dl rm
cast_common.h	232	0644	edit dl rm
chacha.h	3395	0644	edit dl rm
chacha20poly1305.h	1699	0644	edit dl rm
cryptd.h	2050	0644	edit dl rm
ctr.h	1456	0644	edit dl rm
curve25519.h	2065	0644	edit dl rm
des.h	1724	0644	edit dl rm
dh.h	2574	0644	edit dl rm
drbg.h	9209	0644	edit dl rm
ecc_curve.h	1337	0644	edit dl rm
ecdh.h	2487	0644	edit dl rm
engine.h	4209	0644	edit dl rm
gcm.h	867	0644	edit dl rm
gf128mul.h	9647	0644	edit dl rm
ghash.h	388	0644	edit dl rm
hash.h	34859	0644	edit dl rm
hash_info.h	998	0644	edit dl rm
hmac.h	173	0644	edit dl rm
if_alg.h	6844	0644	edit dl rm
kpp.h	10144	0644	edit dl rm
md5.h	497	0644	edit dl rm
nhpoly1305.h	2236	0644	edit dl rm
null.h	346	0644	edit dl rm
padlock.h	438	0644	edit dl rm
pcrypt.h	815	0644	edit dl rm
pkcs7.h	1181	0644	edit dl rm
poly1305.h	2500	0644	edit dl rm
public_key.h	2440	0644	edit dl rm
rng.h	6748	0644	edit dl rm
scatterwalk.h	3989	0644	edit dl rm
serpent.h	696	0644	edit dl rm
sha1.h	1210	0644	edit dl rm
sha1_base.h	2512	0644	edit dl rm
sha2.h	3849	0644	edit dl rm
sha3.h	879	0644	edit dl rm
sha256_base.h	2621	0644	edit dl rm
sha512_base.h	3255	0644	edit dl rm
skcipher.h	20428	0644	edit dl rm
sm2.h	749	0644	edit dl rm
sm3.h	897	0644	edit dl rm
sm3_base.h	2608	0644	edit dl rm
sm4.h	1144	0644	edit dl rm
streebog.h	949	0644	edit dl rm
twofish.h	743	0644	edit dl rm
xts.h	1125	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/include/crypto/aes.h (2563B)

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Common values for AES algorithms
 */

#ifndef _CRYPTO_AES_H
#define _CRYPTO_AES_H

#include <linux/types.h>
#include <linux/crypto.h>

#define AES_MIN_KEY_SIZE	16
#define AES_MAX_KEY_SIZE	32
#define AES_KEYSIZE_128		16
#define AES_KEYSIZE_192		24
#define AES_KEYSIZE_256		32
#define AES_BLOCK_SIZE		16
#define AES_MAX_KEYLENGTH	(15 * 16)
#define AES_MAX_KEYLENGTH_U32	(AES_MAX_KEYLENGTH / sizeof(u32))

/*
 * Please ensure that the first two fields are 16-byte aligned
 * relative to the start of the structure, i.e., don't move them!
 */
struct crypto_aes_ctx {
	u32 key_enc[AES_MAX_KEYLENGTH_U32];
	u32 key_dec[AES_MAX_KEYLENGTH_U32];
	u32 key_length;
};

extern const u32 crypto_ft_tab[4][256] ____cacheline_aligned;
extern const u32 crypto_it_tab[4][256] ____cacheline_aligned;

/*
 * validate key length for AES algorithms
 */
static inline int aes_check_keylen(unsigned int keylen)
{
	switch (keylen) {
	case AES_KEYSIZE_128:
	case AES_KEYSIZE_192:
	case AES_KEYSIZE_256:
		break;
	default:
		return -EINVAL;
	}

return 0;
}

int crypto_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
		unsigned int key_len);

/**
 * aes_expandkey - Expands the AES key as described in FIPS-197
 * @ctx:	The location where the computed key will be stored.
 * @in_key:	The supplied key.
 * @key_len:	The length of the supplied key.
 *
 * Returns 0 on success. The function fails only if an invalid key size (or
 * pointer) is supplied.
 * The expanded key size is 240 bytes (max of 14 rounds with a unique 16 bytes
 * key schedule plus a 16 bytes key which is used before the first round).
 * The decryption key is prepared for the "Equivalent Inverse Cipher" as
 * described in FIPS-197. The first slot (16 bytes) of each key (enc or dec) is
 * for the initial combination, the second slot for the first round and so on.
 */
int aes_expandkey(struct crypto_aes_ctx *ctx, const u8 *in_key,
		  unsigned int key_len);

/**
 * aes_encrypt - Encrypt a single AES block
 * @ctx:	Context struct containing the key schedule
 * @out:	Buffer to store the ciphertext
 * @in:		Buffer containing the plaintext
 */
void aes_encrypt(const struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);

/**
 * aes_decrypt - Decrypt a single AES block
 * @ctx:	Context struct containing the key schedule
 * @out:	Buffer to store the plaintext
 * @in:		Buffer containing the ciphertext
 */
void aes_decrypt(const struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);

extern const u8 crypto_aes_sbox[];
extern const u8 crypto_aes_inv_sbox[];

#endif

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