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Diffstat (limited to 'include/crypto/modes.h')
| -rw-r--r-- | include/crypto/modes.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/include/crypto/modes.h b/include/crypto/modes.h new file mode 100644 index 00000000..19f9d859 --- /dev/null +++ b/include/crypto/modes.h @@ -0,0 +1,223 @@ +/* + * Copyright 2010-2021 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +/* This header can move into provider when legacy support is removed */ +#include <openssl/modes.h> + +#if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__) +typedef __int64 i64; +typedef unsigned __int64 u64; +# define U64(C) C##UI64 +#elif defined(__arch64__) +typedef long i64; +typedef unsigned long u64; +# define U64(C) C##UL +#else +typedef long long i64; +typedef unsigned long long u64; +# define U64(C) C##ULL +#endif + +typedef unsigned int u32; +typedef unsigned char u8; + +#define STRICT_ALIGNMENT 1 +#ifndef PEDANTIC +# if defined(__i386) || defined(__i386__) || \ + defined(__x86_64) || defined(__x86_64__) || \ + defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \ + defined(__aarch64__) || \ + defined(__s390__) || defined(__s390x__) +# undef STRICT_ALIGNMENT +# endif +#endif + +#if !defined(PEDANTIC) && !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_NO_INLINE_ASM) +# if defined(__GNUC__) && __GNUC__>=2 +# if defined(__x86_64) || defined(__x86_64__) +# define BSWAP8(x) ({ u64 ret_=(x); \ + asm ("bswapq %0" \ + : "+r"(ret_)); ret_; }) +# define BSWAP4(x) ({ u32 ret_=(x); \ + asm ("bswapl %0" \ + : "+r"(ret_)); ret_; }) +# elif (defined(__i386) || defined(__i386__)) && !defined(I386_ONLY) +# define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x); \ + asm ("bswapl %0; bswapl %1" \ + : "+r"(hi_),"+r"(lo_)); \ + (u64)hi_<<32|lo_; }) +# define BSWAP4(x) ({ u32 ret_=(x); \ + asm ("bswapl %0" \ + : "+r"(ret_)); ret_; }) +# elif defined(__aarch64__) +# if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \ + __BYTE_ORDER__==__ORDER_LITTLE_ENDIAN__ +# define BSWAP8(x) ({ u64 ret_; \ + asm ("rev %0,%1" \ + : "=r"(ret_) : "r"(x)); ret_; }) +# define BSWAP4(x) ({ u32 ret_; \ + asm ("rev %w0,%w1" \ + : "=r"(ret_) : "r"(x)); ret_; }) +# endif +# elif (defined(__arm__) || defined(__arm)) && !defined(STRICT_ALIGNMENT) +# define BSWAP8(x) ({ u32 lo_=(u64)(x)>>32,hi_=(x); \ + asm ("rev %0,%0; rev %1,%1" \ + : "+r"(hi_),"+r"(lo_)); \ + (u64)hi_<<32|lo_; }) +# define BSWAP4(x) ({ u32 ret_; \ + asm ("rev %0,%1" \ + : "=r"(ret_) : "r"((u32)(x))); \ + ret_; }) +# endif +# elif defined(_MSC_VER) +# if _MSC_VER>=1300 +# include <stdlib.h> +# pragma intrinsic(_byteswap_uint64,_byteswap_ulong) +# define BSWAP8(x) _byteswap_uint64((u64)(x)) +# define BSWAP4(x) _byteswap_ulong((u32)(x)) +# elif defined(_M_IX86) +__inline u32 _bswap4(u32 val) +{ +_asm mov eax, val _asm bswap eax} +# define BSWAP4(x) _bswap4(x) +# endif +# endif +#endif +#if defined(BSWAP4) && !defined(STRICT_ALIGNMENT) +# define GETU32(p) BSWAP4(*(const u32 *)(p)) +# define PUTU32(p,v) *(u32 *)(p) = BSWAP4(v) +#else +# define GETU32(p) ((u32)(p)[0]<<24|(u32)(p)[1]<<16|(u32)(p)[2]<<8|(u32)(p)[3]) +# define PUTU32(p,v) ((p)[0]=(u8)((v)>>24),(p)[1]=(u8)((v)>>16),(p)[2]=(u8)((v)>>8),(p)[3]=(u8)(v)) +#endif +/*- GCM definitions */ typedef struct { + u64 hi, lo; +} u128; + +#ifdef TABLE_BITS +# undef TABLE_BITS +#endif +/* + * Even though permitted values for TABLE_BITS are 8, 4 and 1, it should + * never be set to 8 [or 1]. For further information see gcm128.c. + */ +#define TABLE_BITS 4 + +struct gcm128_context { + /* Following 6 names follow names in GCM specification */ + union { + u64 u[2]; + u32 d[4]; + u8 c[16]; + size_t t[16 / sizeof(size_t)]; + } Yi, EKi, EK0, len, Xi, H; + /* + * Relative position of Xi, H and pre-computed Htable is used in some + * assembler modules, i.e. don't change the order! + */ +#if TABLE_BITS==8 + u128 Htable[256]; +#else + u128 Htable[16]; + void (*gmult) (u64 Xi[2], const u128 Htable[16]); + void (*ghash) (u64 Xi[2], const u128 Htable[16], const u8 *inp, + size_t len); +#endif + unsigned int mres, ares; + block128_f block; + void *key; +#if !defined(OPENSSL_SMALL_FOOTPRINT) + unsigned char Xn[48]; +#endif +}; + +/* + * The maximum permitted number of cipher blocks per data unit in XTS mode. + * Reference IEEE Std 1619-2018. + */ +#define XTS_MAX_BLOCKS_PER_DATA_UNIT (1<<20) + +struct xts128_context { + void *key1, *key2; + block128_f block1, block2; +}; + +struct ccm128_context { + union { + u64 u[2]; + u8 c[16]; + } nonce, cmac; + u64 blocks; + block128_f block; + void *key; +}; + +#ifndef OPENSSL_NO_OCB + +typedef union { + u64 a[2]; + unsigned char c[16]; +} OCB_BLOCK; +# define ocb_block16_xor(in1,in2,out) \ + ( (out)->a[0]=(in1)->a[0]^(in2)->a[0], \ + (out)->a[1]=(in1)->a[1]^(in2)->a[1] ) +# if STRICT_ALIGNMENT +# define ocb_block16_xor_misaligned(in1,in2,out) \ + ocb_block_xor((in1)->c,(in2)->c,16,(out)->c) +# else +# define ocb_block16_xor_misaligned ocb_block16_xor +# endif + +struct ocb128_context { + /* Need both encrypt and decrypt key schedules for decryption */ + block128_f encrypt; + block128_f decrypt; + void *keyenc; + void *keydec; + ocb128_f stream; /* direction dependent */ + /* Key dependent variables. Can be reused if key remains the same */ + size_t l_index; + size_t max_l_index; + OCB_BLOCK l_star; + OCB_BLOCK l_dollar; + OCB_BLOCK *l; + /* Must be reset for each session */ + struct { + u64 blocks_hashed; + u64 blocks_processed; + OCB_BLOCK offset_aad; + OCB_BLOCK sum; + OCB_BLOCK offset; + OCB_BLOCK checksum; + } sess; +}; +#endif /* OPENSSL_NO_OCB */ + +#ifndef OPENSSL_NO_SIV + +#define SIV_LEN 16 + +typedef union siv_block_u { + uint64_t word[SIV_LEN/sizeof(uint64_t)]; + unsigned char byte[SIV_LEN]; +} SIV_BLOCK; + +struct siv128_context { + /* d stores intermediate results of S2V; it corresponds to D from the + pseudocode in section 2.4 of RFC 5297. */ + SIV_BLOCK d; + SIV_BLOCK tag; + EVP_CIPHER_CTX *cipher_ctx; + EVP_MAC *mac; + EVP_MAC_CTX *mac_ctx_init; + int final_ret; + int crypto_ok; +}; + +#endif /* OPENSSL_NO_SIV */ |